diff --git a/packages/d3/d3.v2.js b/packages/d3/d3.v3.js
similarity index 63%
rename from packages/d3/d3.v2.js
rename to packages/d3/d3.v3.js
index 44fc0b072c..08aff88cea 100644
--- a/packages/d3/d3.v2.js
+++ b/packages/d3/d3.v3.js
@@ -1,4 +1,189 @@
-(function() {
+d3 = function() {
+  var d3 = {
+    version: "3.1.4"
+  };
+  if (!Date.now) Date.now = function() {
+    return +new Date();
+  };
+  var d3_document = document, d3_window = window;
+  try {
+    d3_document.createElement("div").style.setProperty("opacity", 0, "");
+  } catch (error) {
+    var d3_style_prototype = d3_window.CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;
+    d3_style_prototype.setProperty = function(name, value, priority) {
+      d3_style_setProperty.call(this, name, value + "", priority);
+    };
+  }
+  d3.ascending = function(a, b) {
+    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+  };
+  d3.descending = function(a, b) {
+    return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
+  };
+  d3.min = function(array, f) {
+    var i = -1, n = array.length, a, b;
+    if (arguments.length === 1) {
+      while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
+      while (++i < n) if ((b = array[i]) != null && a > b) a = b;
+    } else {
+      while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
+    }
+    return a;
+  };
+  d3.max = function(array, f) {
+    var i = -1, n = array.length, a, b;
+    if (arguments.length === 1) {
+      while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
+      while (++i < n) if ((b = array[i]) != null && b > a) a = b;
+    } else {
+      while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
+    }
+    return a;
+  };
+  d3.extent = function(array, f) {
+    var i = -1, n = array.length, a, b, c;
+    if (arguments.length === 1) {
+      while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined;
+      while (++i < n) if ((b = array[i]) != null) {
+        if (a > b) a = b;
+        if (c < b) c = b;
+      }
+    } else {
+      while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined;
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
+        if (a > b) a = b;
+        if (c < b) c = b;
+      }
+    }
+    return [ a, c ];
+  };
+  d3.sum = function(array, f) {
+    var s = 0, n = array.length, a, i = -1;
+    if (arguments.length === 1) {
+      while (++i < n) if (!isNaN(a = +array[i])) s += a;
+    } else {
+      while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
+    }
+    return s;
+  };
+  function d3_number(x) {
+    return x != null && !isNaN(x);
+  }
+  d3.mean = function(array, f) {
+    var n = array.length, a, m = 0, i = -1, j = 0;
+    if (arguments.length === 1) {
+      while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
+    } else {
+      while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
+    }
+    return j ? m : undefined;
+  };
+  d3.quantile = function(values, p) {
+    var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;
+    return e ? v + e * (values[h] - v) : v;
+  };
+  d3.median = function(array, f) {
+    if (arguments.length > 1) array = array.map(f);
+    array = array.filter(d3_number);
+    return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;
+  };
+  d3.bisector = function(f) {
+    return {
+      left: function(a, x, lo, hi) {
+        if (arguments.length < 3) lo = 0;
+        if (arguments.length < 4) hi = a.length;
+        while (lo < hi) {
+          var mid = lo + hi >>> 1;
+          if (f.call(a, a[mid], mid) < x) lo = mid + 1; else hi = mid;
+        }
+        return lo;
+      },
+      right: function(a, x, lo, hi) {
+        if (arguments.length < 3) lo = 0;
+        if (arguments.length < 4) hi = a.length;
+        while (lo < hi) {
+          var mid = lo + hi >>> 1;
+          if (x < f.call(a, a[mid], mid)) hi = mid; else lo = mid + 1;
+        }
+        return lo;
+      }
+    };
+  };
+  var d3_bisector = d3.bisector(function(d) {
+    return d;
+  });
+  d3.bisectLeft = d3_bisector.left;
+  d3.bisect = d3.bisectRight = d3_bisector.right;
+  d3.shuffle = function(array) {
+    var m = array.length, t, i;
+    while (m) {
+      i = Math.random() * m-- | 0;
+      t = array[m], array[m] = array[i], array[i] = t;
+    }
+    return array;
+  };
+  d3.permute = function(array, indexes) {
+    var permutes = [], i = -1, n = indexes.length;
+    while (++i < n) permutes[i] = array[indexes[i]];
+    return permutes;
+  };
+  d3.zip = function() {
+    if (!(n = arguments.length)) return [];
+    for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m; ) {
+      for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n; ) {
+        zip[j] = arguments[j][i];
+      }
+    }
+    return zips;
+  };
+  function d3_zipLength(d) {
+    return d.length;
+  }
+  d3.transpose = function(matrix) {
+    return d3.zip.apply(d3, matrix);
+  };
+  d3.keys = function(map) {
+    var keys = [];
+    for (var key in map) keys.push(key);
+    return keys;
+  };
+  d3.values = function(map) {
+    var values = [];
+    for (var key in map) values.push(map[key]);
+    return values;
+  };
+  d3.entries = function(map) {
+    var entries = [];
+    for (var key in map) entries.push({
+      key: key,
+      value: map[key]
+    });
+    return entries;
+  };
+  d3.merge = function(arrays) {
+    return Array.prototype.concat.apply([], arrays);
+  };
+  d3.range = function(start, stop, step) {
+    if (arguments.length < 3) {
+      step = 1;
+      if (arguments.length < 2) {
+        stop = start;
+        start = 0;
+      }
+    }
+    if ((stop - start) / step === Infinity) throw new Error("infinite range");
+    var range = [], k = d3_range_integerScale(Math.abs(step)), i = -1, j;
+    start *= k, stop *= k, step *= k;
+    if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);
+    return range;
+  };
+  function d3_range_integerScale(x) {
+    var k = 1;
+    while (x * k % 1) k *= 10;
+    return k;
+  }
   function d3_class(ctor, properties) {
     try {
       for (var key in properties) {
@@ -11,60 +196,194 @@
       ctor.prototype = properties;
     }
   }
-  function d3_arrayCopy(pseudoarray) {
-    var i = -1, n = pseudoarray.length, array = [];
-    while (++i < n) array.push(pseudoarray[i]);
-    return array;
-  }
-  function d3_arraySlice(pseudoarray) {
-    return Array.prototype.slice.call(pseudoarray);
-  }
+  d3.map = function(object) {
+    var map = new d3_Map();
+    for (var key in object) map.set(key, object[key]);
+    return map;
+  };
   function d3_Map() {}
-  function d3_identity(d) {
-    return d;
-  }
-  function d3_this() {
-    return this;
-  }
-  function d3_true() {
-    return true;
-  }
-  function d3_functor(v) {
-    return typeof v === "function" ? v : function() {
-      return v;
+  d3_class(d3_Map, {
+    has: function(key) {
+      return d3_map_prefix + key in this;
+    },
+    get: function(key) {
+      return this[d3_map_prefix + key];
+    },
+    set: function(key, value) {
+      return this[d3_map_prefix + key] = value;
+    },
+    remove: function(key) {
+      key = d3_map_prefix + key;
+      return key in this && delete this[key];
+    },
+    keys: function() {
+      var keys = [];
+      this.forEach(function(key) {
+        keys.push(key);
+      });
+      return keys;
+    },
+    values: function() {
+      var values = [];
+      this.forEach(function(key, value) {
+        values.push(value);
+      });
+      return values;
+    },
+    entries: function() {
+      var entries = [];
+      this.forEach(function(key, value) {
+        entries.push({
+          key: key,
+          value: value
+        });
+      });
+      return entries;
+    },
+    forEach: function(f) {
+      for (var key in this) {
+        if (key.charCodeAt(0) === d3_map_prefixCode) {
+          f.call(this, key.substring(1), this[key]);
+        }
+      }
+    }
+  });
+  var d3_map_prefix = "\0", d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
+  d3.nest = function() {
+    var nest = {}, keys = [], sortKeys = [], sortValues, rollup;
+    function map(mapType, array, depth) {
+      if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;
+      var i = -1, n = array.length, key = keys[depth++], keyValue, object, setter, valuesByKey = new d3_Map(), values;
+      while (++i < n) {
+        if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
+          values.push(object);
+        } else {
+          valuesByKey.set(keyValue, [ object ]);
+        }
+      }
+      if (mapType) {
+        object = mapType();
+        setter = function(keyValue, values) {
+          object.set(keyValue, map(mapType, values, depth));
+        };
+      } else {
+        object = {};
+        setter = function(keyValue, values) {
+          object[keyValue] = map(mapType, values, depth);
+        };
+      }
+      valuesByKey.forEach(setter);
+      return object;
+    }
+    function entries(map, depth) {
+      if (depth >= keys.length) return map;
+      var array = [], sortKey = sortKeys[depth++];
+      map.forEach(function(key, keyMap) {
+        array.push({
+          key: key,
+          values: entries(keyMap, depth)
+        });
+      });
+      return sortKey ? array.sort(function(a, b) {
+        return sortKey(a.key, b.key);
+      }) : array;
+    }
+    nest.map = function(array, mapType) {
+      return map(mapType, array, 0);
     };
-  }
+    nest.entries = function(array) {
+      return entries(map(d3.map, array, 0), 0);
+    };
+    nest.key = function(d) {
+      keys.push(d);
+      return nest;
+    };
+    nest.sortKeys = function(order) {
+      sortKeys[keys.length - 1] = order;
+      return nest;
+    };
+    nest.sortValues = function(order) {
+      sortValues = order;
+      return nest;
+    };
+    nest.rollup = function(f) {
+      rollup = f;
+      return nest;
+    };
+    return nest;
+  };
+  d3.set = function(array) {
+    var set = new d3_Set();
+    if (array) for (var i = 0; i < array.length; i++) set.add(array[i]);
+    return set;
+  };
+  function d3_Set() {}
+  d3_class(d3_Set, {
+    has: function(value) {
+      return d3_map_prefix + value in this;
+    },
+    add: function(value) {
+      this[d3_map_prefix + value] = true;
+      return value;
+    },
+    remove: function(value) {
+      value = d3_map_prefix + value;
+      return value in this && delete this[value];
+    },
+    values: function() {
+      var values = [];
+      this.forEach(function(value) {
+        values.push(value);
+      });
+      return values;
+    },
+    forEach: function(f) {
+      for (var value in this) {
+        if (value.charCodeAt(0) === d3_map_prefixCode) {
+          f.call(this, value.substring(1));
+        }
+      }
+    }
+  });
+  d3.behavior = {};
+  d3.rebind = function(target, source) {
+    var i = 1, n = arguments.length, method;
+    while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
+    return target;
+  };
   function d3_rebind(target, source, method) {
     return function() {
       var value = method.apply(source, arguments);
-      return arguments.length ? target : value;
+      return value === source ? target : value;
     };
   }
-  function d3_number(x) {
-    return x != null && !isNaN(x);
-  }
-  function d3_zipLength(d) {
-    return d.length;
-  }
-  function d3_splitter(d) {
-    return d == null;
-  }
-  function d3_collapse(s) {
-    return s.trim().replace(/\s+/g, " ");
-  }
-  function d3_range_integerScale(x) {
-    var k = 1;
-    while (x * k % 1) k *= 10;
-    return k;
-  }
+  d3.dispatch = function() {
+    var dispatch = new d3_dispatch(), i = -1, n = arguments.length;
+    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+    return dispatch;
+  };
   function d3_dispatch() {}
+  d3_dispatch.prototype.on = function(type, listener) {
+    var i = type.indexOf("."), name = "";
+    if (i >= 0) {
+      name = type.substring(i + 1);
+      type = type.substring(0, i);
+    }
+    if (type) return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);
+    if (arguments.length === 2) {
+      if (listener == null) for (type in this) {
+        if (this.hasOwnProperty(type)) this[type].on(name, null);
+      }
+      return this;
+    }
+  };
   function d3_dispatch_event(dispatch) {
+    var listeners = [], listenerByName = new d3_Map();
     function event() {
       var z = listeners, i = -1, n = z.length, l;
       while (++i < n) if (l = z[i].on) l.apply(this, arguments);
       return dispatch;
     }
-    var listeners = [], listenerByName = new d3_Map;
     event.on = function(name, listener) {
       var l = listenerByName.get(name), i;
       if (arguments.length < 2) return l && l.on;
@@ -80,80 +399,7 @@
     };
     return event;
   }
-  function d3_format_precision(x, p) {
-    return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1);
-  }
-  function d3_format_typeDefault(x) {
-    return x + "";
-  }
-  function d3_format_group(value) {
-    var i = value.lastIndexOf("."), f = i >= 0 ? value.substring(i) : (i = value.length, ""), t = [];
-    while (i > 0) t.push(value.substring(i -= 3, i + 3));
-    return t.reverse().join(",") + f;
-  }
-  function d3_formatPrefix(d, i) {
-    var k = Math.pow(10, Math.abs(8 - i) * 3);
-    return {
-      scale: i > 8 ? function(d) {
-        return d / k;
-      } : function(d) {
-        return d * k;
-      },
-      symbol: d
-    };
-  }
-  function d3_ease_clamp(f) {
-    return function(t) {
-      return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
-    };
-  }
-  function d3_ease_reverse(f) {
-    return function(t) {
-      return 1 - f(1 - t);
-    };
-  }
-  function d3_ease_reflect(f) {
-    return function(t) {
-      return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));
-    };
-  }
-  function d3_ease_identity(t) {
-    return t;
-  }
-  function d3_ease_poly(e) {
-    return function(t) {
-      return Math.pow(t, e);
-    };
-  }
-  function d3_ease_sin(t) {
-    return 1 - Math.cos(t * Math.PI / 2);
-  }
-  function d3_ease_exp(t) {
-    return Math.pow(2, 10 * (t - 1));
-  }
-  function d3_ease_circle(t) {
-    return 1 - Math.sqrt(1 - t * t);
-  }
-  function d3_ease_elastic(a, p) {
-    var s;
-    if (arguments.length < 2) p = .45;
-    if (arguments.length < 1) {
-      a = 1;
-      s = p / 4;
-    } else s = p / (2 * Math.PI) * Math.asin(1 / a);
-    return function(t) {
-      return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p);
-    };
-  }
-  function d3_ease_back(s) {
-    if (!s) s = 1.70158;
-    return function(t) {
-      return t * t * ((s + 1) * t - s);
-    };
-  }
-  function d3_ease_bounce(t) {
-    return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
-  }
+  d3.event = null;
   function d3_eventCancel() {
     d3.event.stopPropagation();
     d3.event.preventDefault();
@@ -164,7 +410,7 @@
     return e;
   }
   function d3_eventDispatch(target) {
-    var dispatch = new d3_dispatch, i = 0, n = arguments.length;
+    var dispatch = new d3_dispatch(), i = 0, n = arguments.length;
     while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
     dispatch.of = function(thiz, argumentz) {
       return function(e1) {
@@ -180,51 +426,948 @@
     };
     return dispatch;
   }
-  function d3_transform(m) {
-    var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
-    if (r0[0] * r1[1] < r1[0] * r0[1]) {
-      r0[0] *= -1;
-      r0[1] *= -1;
-      kx *= -1;
-      kz *= -1;
+  d3.mouse = function(container) {
+    return d3_mousePoint(container, d3_eventSource());
+  };
+  var d3_mouse_bug44083 = /WebKit/.test(d3_window.navigator.userAgent) ? -1 : 0;
+  function d3_mousePoint(container, e) {
+    var svg = container.ownerSVGElement || container;
+    if (svg.createSVGPoint) {
+      var point = svg.createSVGPoint();
+      if (d3_mouse_bug44083 < 0 && (d3_window.scrollX || d3_window.scrollY)) {
+        svg = d3.select(d3_document.body).append("svg").style("position", "absolute").style("top", 0).style("left", 0);
+        var ctm = svg[0][0].getScreenCTM();
+        d3_mouse_bug44083 = !(ctm.f || ctm.e);
+        svg.remove();
+      }
+      if (d3_mouse_bug44083) {
+        point.x = e.pageX;
+        point.y = e.pageY;
+      } else {
+        point.x = e.clientX;
+        point.y = e.clientY;
+      }
+      point = point.matrixTransform(container.getScreenCTM().inverse());
+      return [ point.x, point.y ];
     }
-    this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees;
-    this.translate = [ m.e, m.f ];
-    this.scale = [ kx, ky ];
-    this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0;
+    var rect = container.getBoundingClientRect();
+    return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];
   }
-  function d3_transformDot(a, b) {
-    return a[0] * b[0] + a[1] * b[1];
+  var d3_array = d3_arraySlice;
+  function d3_arrayCopy(pseudoarray) {
+    var i = -1, n = pseudoarray.length, array = [];
+    while (++i < n) array.push(pseudoarray[i]);
+    return array;
   }
-  function d3_transformNormalize(a) {
-    var k = Math.sqrt(d3_transformDot(a, a));
-    if (k) {
-      a[0] /= k;
-      a[1] /= k;
+  function d3_arraySlice(pseudoarray) {
+    return Array.prototype.slice.call(pseudoarray);
+  }
+  try {
+    d3_array(d3_document.documentElement.childNodes)[0].nodeType;
+  } catch (e) {
+    d3_array = d3_arrayCopy;
+  }
+  var d3_arraySubclass = [].__proto__ ? function(array, prototype) {
+    array.__proto__ = prototype;
+  } : function(array, prototype) {
+    for (var property in prototype) array[property] = prototype[property];
+  };
+  d3.touches = function(container, touches) {
+    if (arguments.length < 2) touches = d3_eventSource().touches;
+    return touches ? d3_array(touches).map(function(touch) {
+      var point = d3_mousePoint(container, touch);
+      point.identifier = touch.identifier;
+      return point;
+    }) : [];
+  };
+  d3.behavior.drag = function() {
+    var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null;
+    function drag() {
+      this.on("mousedown.drag", mousedown).on("touchstart.drag", mousedown);
     }
-    return k;
+    function mousedown() {
+      var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, touchId = d3.event.touches ? d3.event.changedTouches[0].identifier : null, offset, origin_ = point(), moved = 0;
+      var w = d3.select(d3_window).on(touchId != null ? "touchmove.drag-" + touchId : "mousemove.drag", dragmove).on(touchId != null ? "touchend.drag-" + touchId : "mouseup.drag", dragend, true);
+      if (origin) {
+        offset = origin.apply(target, arguments);
+        offset = [ offset.x - origin_[0], offset.y - origin_[1] ];
+      } else {
+        offset = [ 0, 0 ];
+      }
+      if (touchId == null) d3_eventCancel();
+      event_({
+        type: "dragstart"
+      });
+      function point() {
+        var p = target.parentNode;
+        return touchId != null ? d3.touches(p).filter(function(p) {
+          return p.identifier === touchId;
+        })[0] : d3.mouse(p);
+      }
+      function dragmove() {
+        if (!target.parentNode) return dragend();
+        var p = point(), dx = p[0] - origin_[0], dy = p[1] - origin_[1];
+        moved |= dx | dy;
+        origin_ = p;
+        d3_eventCancel();
+        event_({
+          type: "drag",
+          x: p[0] + offset[0],
+          y: p[1] + offset[1],
+          dx: dx,
+          dy: dy
+        });
+      }
+      function dragend() {
+        event_({
+          type: "dragend"
+        });
+        if (moved) {
+          d3_eventCancel();
+          if (d3.event.target === eventTarget) w.on("click.drag", click, true);
+        }
+        w.on(touchId != null ? "touchmove.drag-" + touchId : "mousemove.drag", null).on(touchId != null ? "touchend.drag-" + touchId : "mouseup.drag", null);
+      }
+      function click() {
+        d3_eventCancel();
+        w.on("click.drag", null);
+      }
+    }
+    drag.origin = function(x) {
+      if (!arguments.length) return origin;
+      origin = x;
+      return drag;
+    };
+    return d3.rebind(drag, event, "on");
+  };
+  function d3_selection(groups) {
+    d3_arraySubclass(groups, d3_selectionPrototype);
+    return groups;
   }
-  function d3_transformCombine(a, b, k) {
-    a[0] += k * b[0];
-    a[1] += k * b[1];
-    return a;
+  var d3_select = function(s, n) {
+    return n.querySelector(s);
+  }, d3_selectAll = function(s, n) {
+    return n.querySelectorAll(s);
+  }, d3_selectRoot = d3_document.documentElement, d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector, d3_selectMatches = function(n, s) {
+    return d3_selectMatcher.call(n, s);
+  };
+  if (typeof Sizzle === "function") {
+    d3_select = function(s, n) {
+      return Sizzle(s, n)[0] || null;
+    };
+    d3_selectAll = function(s, n) {
+      return Sizzle.uniqueSort(Sizzle(s, n));
+    };
+    d3_selectMatches = Sizzle.matchesSelector;
   }
-  function d3_interpolateByName(name) {
-    return name == "transform" ? d3.interpolateTransform : d3.interpolate;
-  }
-  function d3_uninterpolateNumber(a, b) {
-    b = b - (a = +a) ? 1 / (b - a) : 0;
-    return function(x) {
-      return (x - a) * b;
+  var d3_selectionPrototype = [];
+  d3.selection = function() {
+    return d3_selectionRoot;
+  };
+  d3.selection.prototype = d3_selectionPrototype;
+  d3_selectionPrototype.select = function(selector) {
+    var subgroups = [], subgroup, subnode, group, node;
+    if (typeof selector !== "function") selector = d3_selection_selector(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = (group = this[j]).parentNode;
+      for (var i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroup.push(subnode = selector.call(node, node.__data__, i));
+          if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
+        } else {
+          subgroup.push(null);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_selector(selector) {
+    return function() {
+      return d3_select(selector, this);
     };
   }
-  function d3_uninterpolateClamp(a, b) {
-    b = b - (a = +a) ? 1 / (b - a) : 0;
-    return function(x) {
-      return Math.max(0, Math.min(1, (x - a) * b));
+  d3_selectionPrototype.selectAll = function(selector) {
+    var subgroups = [], subgroup, node;
+    if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i)));
+          subgroup.parentNode = node;
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_selectorAll(selector) {
+    return function() {
+      return d3_selectAll(selector, this);
     };
   }
+  var d3_nsPrefix = {
+    svg: "http://www.w3.org/2000/svg",
+    xhtml: "http://www.w3.org/1999/xhtml",
+    xlink: "http://www.w3.org/1999/xlink",
+    xml: "http://www.w3.org/XML/1998/namespace",
+    xmlns: "http://www.w3.org/2000/xmlns/"
+  };
+  d3.ns = {
+    prefix: d3_nsPrefix,
+    qualify: function(name) {
+      var i = name.indexOf(":"), prefix = name;
+      if (i >= 0) {
+        prefix = name.substring(0, i);
+        name = name.substring(i + 1);
+      }
+      return d3_nsPrefix.hasOwnProperty(prefix) ? {
+        space: d3_nsPrefix[prefix],
+        local: name
+      } : name;
+    }
+  };
+  d3_selectionPrototype.attr = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") {
+        var node = this.node();
+        name = d3.ns.qualify(name);
+        return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);
+      }
+      for (value in name) this.each(d3_selection_attr(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_attr(name, value));
+  };
+  function d3_selection_attr(name, value) {
+    name = d3.ns.qualify(name);
+    function attrNull() {
+      this.removeAttribute(name);
+    }
+    function attrNullNS() {
+      this.removeAttributeNS(name.space, name.local);
+    }
+    function attrConstant() {
+      this.setAttribute(name, value);
+    }
+    function attrConstantNS() {
+      this.setAttributeNS(name.space, name.local, value);
+    }
+    function attrFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);
+    }
+    function attrFunctionNS() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);
+    }
+    return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;
+  }
+  function d3_collapse(s) {
+    return s.trim().replace(/\s+/g, " ");
+  }
+  d3.requote = function(s) {
+    return s.replace(d3_requote_re, "\\$&");
+  };
+  var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
+  d3_selectionPrototype.classed = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") {
+        var node = this.node(), n = (name = name.trim().split(/^|\s+/g)).length, i = -1;
+        if (value = node.classList) {
+          while (++i < n) if (!value.contains(name[i])) return false;
+        } else {
+          value = node.getAttribute("class");
+          while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;
+        }
+        return true;
+      }
+      for (value in name) this.each(d3_selection_classed(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_classed(name, value));
+  };
+  function d3_selection_classedRe(name) {
+    return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
+  }
+  function d3_selection_classed(name, value) {
+    name = name.trim().split(/\s+/).map(d3_selection_classedName);
+    var n = name.length;
+    function classedConstant() {
+      var i = -1;
+      while (++i < n) name[i](this, value);
+    }
+    function classedFunction() {
+      var i = -1, x = value.apply(this, arguments);
+      while (++i < n) name[i](this, x);
+    }
+    return typeof value === "function" ? classedFunction : classedConstant;
+  }
+  function d3_selection_classedName(name) {
+    var re = d3_selection_classedRe(name);
+    return function(node, value) {
+      if (c = node.classList) return value ? c.add(name) : c.remove(name);
+      var c = node.getAttribute("class") || "";
+      if (value) {
+        re.lastIndex = 0;
+        if (!re.test(c)) node.setAttribute("class", d3_collapse(c + " " + name));
+      } else {
+        node.setAttribute("class", d3_collapse(c.replace(re, " ")));
+      }
+    };
+  }
+  d3_selectionPrototype.style = function(name, value, priority) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof name !== "string") {
+        if (n < 2) value = "";
+        for (priority in name) this.each(d3_selection_style(priority, name[priority], value));
+        return this;
+      }
+      if (n < 2) return d3_window.getComputedStyle(this.node(), null).getPropertyValue(name);
+      priority = "";
+    }
+    return this.each(d3_selection_style(name, value, priority));
+  };
+  function d3_selection_style(name, value, priority) {
+    function styleNull() {
+      this.style.removeProperty(name);
+    }
+    function styleConstant() {
+      this.style.setProperty(name, value, priority);
+    }
+    function styleFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);
+    }
+    return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant;
+  }
+  d3_selectionPrototype.property = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") return this.node()[name];
+      for (value in name) this.each(d3_selection_property(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_property(name, value));
+  };
+  function d3_selection_property(name, value) {
+    function propertyNull() {
+      delete this[name];
+    }
+    function propertyConstant() {
+      this[name] = value;
+    }
+    function propertyFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) delete this[name]; else this[name] = x;
+    }
+    return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;
+  }
+  d3_selectionPrototype.text = function(value) {
+    return arguments.length ? this.each(typeof value === "function" ? function() {
+      var v = value.apply(this, arguments);
+      this.textContent = v == null ? "" : v;
+    } : value == null ? function() {
+      this.textContent = "";
+    } : function() {
+      this.textContent = value;
+    }) : this.node().textContent;
+  };
+  d3_selectionPrototype.html = function(value) {
+    return arguments.length ? this.each(typeof value === "function" ? function() {
+      var v = value.apply(this, arguments);
+      this.innerHTML = v == null ? "" : v;
+    } : value == null ? function() {
+      this.innerHTML = "";
+    } : function() {
+      this.innerHTML = value;
+    }) : this.node().innerHTML;
+  };
+  d3_selectionPrototype.append = function(name) {
+    name = d3.ns.qualify(name);
+    function append() {
+      return this.appendChild(d3_document.createElementNS(this.namespaceURI, name));
+    }
+    function appendNS() {
+      return this.appendChild(d3_document.createElementNS(name.space, name.local));
+    }
+    return this.select(name.local ? appendNS : append);
+  };
+  d3_selectionPrototype.insert = function(name, before) {
+    name = d3.ns.qualify(name);
+    if (typeof before !== "function") before = d3_selection_selector(before);
+    function insert(d, i) {
+      return this.insertBefore(d3_document.createElementNS(this.namespaceURI, name), before.call(this, d, i));
+    }
+    function insertNS(d, i) {
+      return this.insertBefore(d3_document.createElementNS(name.space, name.local), before.call(this, d, i));
+    }
+    return this.select(name.local ? insertNS : insert);
+  };
+  d3_selectionPrototype.remove = function() {
+    return this.each(function() {
+      var parent = this.parentNode;
+      if (parent) parent.removeChild(this);
+    });
+  };
+  d3_selectionPrototype.data = function(value, key) {
+    var i = -1, n = this.length, group, node;
+    if (!arguments.length) {
+      value = new Array(n = (group = this[0]).length);
+      while (++i < n) {
+        if (node = group[i]) {
+          value[i] = node.__data__;
+        }
+      }
+      return value;
+    }
+    function bind(group, groupData) {
+      var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), updateNodes = new Array(m), enterNodes = new Array(m), exitNodes = new Array(n), node, nodeData;
+      if (key) {
+        var nodeByKeyValue = new d3_Map(), dataByKeyValue = new d3_Map(), keyValues = [], keyValue;
+        for (i = -1; ++i < n; ) {
+          keyValue = key.call(node = group[i], node.__data__, i);
+          if (nodeByKeyValue.has(keyValue)) {
+            exitNodes[i] = node;
+          } else {
+            nodeByKeyValue.set(keyValue, node);
+          }
+          keyValues.push(keyValue);
+        }
+        for (i = -1; ++i < m; ) {
+          keyValue = key.call(groupData, nodeData = groupData[i], i);
+          if (node = nodeByKeyValue.get(keyValue)) {
+            updateNodes[i] = node;
+            node.__data__ = nodeData;
+          } else if (!dataByKeyValue.has(keyValue)) {
+            enterNodes[i] = d3_selection_dataNode(nodeData);
+          }
+          dataByKeyValue.set(keyValue, nodeData);
+          nodeByKeyValue.remove(keyValue);
+        }
+        for (i = -1; ++i < n; ) {
+          if (nodeByKeyValue.has(keyValues[i])) {
+            exitNodes[i] = group[i];
+          }
+        }
+      } else {
+        for (i = -1; ++i < n0; ) {
+          node = group[i];
+          nodeData = groupData[i];
+          if (node) {
+            node.__data__ = nodeData;
+            updateNodes[i] = node;
+          } else {
+            enterNodes[i] = d3_selection_dataNode(nodeData);
+          }
+        }
+        for (;i < m; ++i) {
+          enterNodes[i] = d3_selection_dataNode(groupData[i]);
+        }
+        for (;i < n; ++i) {
+          exitNodes[i] = group[i];
+        }
+      }
+      enterNodes.update = updateNodes;
+      enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;
+      enter.push(enterNodes);
+      update.push(updateNodes);
+      exit.push(exitNodes);
+    }
+    var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);
+    if (typeof value === "function") {
+      while (++i < n) {
+        bind(group = this[i], value.call(group, group.parentNode.__data__, i));
+      }
+    } else {
+      while (++i < n) {
+        bind(group = this[i], value);
+      }
+    }
+    update.enter = function() {
+      return enter;
+    };
+    update.exit = function() {
+      return exit;
+    };
+    return update;
+  };
+  function d3_selection_dataNode(data) {
+    return {
+      __data__: data
+    };
+  }
+  d3_selectionPrototype.datum = function(value) {
+    return arguments.length ? this.property("__data__", value) : this.property("__data__");
+  };
+  d3_selectionPrototype.filter = function(filter) {
+    var subgroups = [], subgroup, group, node;
+    if (typeof filter !== "function") filter = d3_selection_filter(filter);
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = (group = this[j]).parentNode;
+      for (var i = 0, n = group.length; i < n; i++) {
+        if ((node = group[i]) && filter.call(node, node.__data__, i)) {
+          subgroup.push(node);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_filter(selector) {
+    return function() {
+      return d3_selectMatches(this, selector);
+    };
+  }
+  d3_selectionPrototype.order = function() {
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {
+        if (node = group[i]) {
+          if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
+          next = node;
+        }
+      }
+    }
+    return this;
+  };
+  d3_selectionPrototype.sort = function(comparator) {
+    comparator = d3_selection_sortComparator.apply(this, arguments);
+    for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);
+    return this.order();
+  };
+  function d3_selection_sortComparator(comparator) {
+    if (!arguments.length) comparator = d3.ascending;
+    return function(a, b) {
+      return !a - !b || comparator(a.__data__, b.__data__);
+    };
+  }
+  function d3_noop() {}
+  d3_selectionPrototype.on = function(type, listener, capture) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof type !== "string") {
+        if (n < 2) listener = false;
+        for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));
+        return this;
+      }
+      if (n < 2) return (n = this.node()["__on" + type]) && n._;
+      capture = false;
+    }
+    return this.each(d3_selection_on(type, listener, capture));
+  };
+  function d3_selection_on(type, listener, capture) {
+    var name = "__on" + type, i = type.indexOf("."), wrap = d3_selection_onListener;
+    if (i > 0) type = type.substring(0, i);
+    var filter = d3_selection_onFilters.get(type);
+    if (filter) type = filter, wrap = d3_selection_onFilter;
+    function onRemove() {
+      var l = this[name];
+      if (l) {
+        this.removeEventListener(type, l, l.$);
+        delete this[name];
+      }
+    }
+    function onAdd() {
+      var l = wrap(listener, d3_array(arguments));
+      onRemove.call(this);
+      this.addEventListener(type, this[name] = l, l.$ = capture);
+      l._ = listener;
+    }
+    function removeAll() {
+      var re = new RegExp("^__on([^.]+)" + d3.requote(type) + "$"), match;
+      for (var name in this) {
+        if (match = name.match(re)) {
+          var l = this[name];
+          this.removeEventListener(match[1], l, l.$);
+          delete this[name];
+        }
+      }
+    }
+    return i ? listener ? onAdd : onRemove : listener ? d3_noop : removeAll;
+  }
+  var d3_selection_onFilters = d3.map({
+    mouseenter: "mouseover",
+    mouseleave: "mouseout"
+  });
+  d3_selection_onFilters.forEach(function(k) {
+    if ("on" + k in d3_document) d3_selection_onFilters.remove(k);
+  });
+  function d3_selection_onListener(listener, argumentz) {
+    return function(e) {
+      var o = d3.event;
+      d3.event = e;
+      argumentz[0] = this.__data__;
+      try {
+        listener.apply(this, argumentz);
+      } finally {
+        d3.event = o;
+      }
+    };
+  }
+  function d3_selection_onFilter(listener, argumentz) {
+    var l = d3_selection_onListener(listener, argumentz);
+    return function(e) {
+      var target = this, related = e.relatedTarget;
+      if (!related || related !== target && !(related.compareDocumentPosition(target) & 8)) {
+        l.call(target, e);
+      }
+    };
+  }
+  d3_selectionPrototype.each = function(callback) {
+    return d3_selection_each(this, function(node, i, j) {
+      callback.call(node, node.__data__, i, j);
+    });
+  };
+  function d3_selection_each(groups, callback) {
+    for (var j = 0, m = groups.length; j < m; j++) {
+      for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {
+        if (node = group[i]) callback(node, i, j);
+      }
+    }
+    return groups;
+  }
+  d3_selectionPrototype.call = function(callback) {
+    var args = d3_array(arguments);
+    callback.apply(args[0] = this, args);
+    return this;
+  };
+  d3_selectionPrototype.empty = function() {
+    return !this.node();
+  };
+  d3_selectionPrototype.node = function() {
+    for (var j = 0, m = this.length; j < m; j++) {
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        var node = group[i];
+        if (node) return node;
+      }
+    }
+    return null;
+  };
+  function d3_selection_enter(selection) {
+    d3_arraySubclass(selection, d3_selection_enterPrototype);
+    return selection;
+  }
+  var d3_selection_enterPrototype = [];
+  d3.selection.enter = d3_selection_enter;
+  d3.selection.enter.prototype = d3_selection_enterPrototype;
+  d3_selection_enterPrototype.append = d3_selectionPrototype.append;
+  d3_selection_enterPrototype.insert = d3_selectionPrototype.insert;
+  d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
+  d3_selection_enterPrototype.node = d3_selectionPrototype.node;
+  d3_selection_enterPrototype.select = function(selector) {
+    var subgroups = [], subgroup, subnode, upgroup, group, node;
+    for (var j = -1, m = this.length; ++j < m; ) {
+      upgroup = (group = this[j]).update;
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = group.parentNode;
+      for (var i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i));
+          subnode.__data__ = node.__data__;
+        } else {
+          subgroup.push(null);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  d3_selectionPrototype.transition = function() {
+    var id = d3_transitionInheritId || ++d3_transitionId, subgroups = [], subgroup, node, transition = Object.create(d3_transitionInherit);
+    transition.time = Date.now();
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) d3_transitionNode(node, i, id, transition);
+        subgroup.push(node);
+      }
+    }
+    return d3_transition(subgroups, id);
+  };
+  var d3_selectionRoot = d3_selection([ [ d3_document ] ]);
+  d3_selectionRoot[0].parentNode = d3_selectRoot;
+  d3.select = function(selector) {
+    return typeof selector === "string" ? d3_selectionRoot.select(selector) : d3_selection([ [ selector ] ]);
+  };
+  d3.selectAll = function(selector) {
+    return typeof selector === "string" ? d3_selectionRoot.selectAll(selector) : d3_selection([ d3_array(selector) ]);
+  };
+  d3.behavior.zoom = function() {
+    var translate = [ 0, 0 ], translate0, scale = 1, scale0, scaleExtent = d3_behavior_zoomInfinity, event = d3_eventDispatch(zoom, "zoom"), x0, x1, y0, y1, touchtime;
+    function zoom() {
+      this.on("mousedown.zoom", mousedown).on("mousemove.zoom", mousemove).on(d3_behavior_zoomWheel + ".zoom", mousewheel).on("dblclick.zoom", dblclick).on("touchstart.zoom", touchstart).on("touchmove.zoom", touchmove).on("touchend.zoom", touchstart);
+    }
+    zoom.translate = function(x) {
+      if (!arguments.length) return translate;
+      translate = x.map(Number);
+      rescale();
+      return zoom;
+    };
+    zoom.scale = function(x) {
+      if (!arguments.length) return scale;
+      scale = +x;
+      rescale();
+      return zoom;
+    };
+    zoom.scaleExtent = function(x) {
+      if (!arguments.length) return scaleExtent;
+      scaleExtent = x == null ? d3_behavior_zoomInfinity : x.map(Number);
+      return zoom;
+    };
+    zoom.x = function(z) {
+      if (!arguments.length) return x1;
+      x1 = z;
+      x0 = z.copy();
+      translate = [ 0, 0 ];
+      scale = 1;
+      return zoom;
+    };
+    zoom.y = function(z) {
+      if (!arguments.length) return y1;
+      y1 = z;
+      y0 = z.copy();
+      translate = [ 0, 0 ];
+      scale = 1;
+      return zoom;
+    };
+    function location(p) {
+      return [ (p[0] - translate[0]) / scale, (p[1] - translate[1]) / scale ];
+    }
+    function point(l) {
+      return [ l[0] * scale + translate[0], l[1] * scale + translate[1] ];
+    }
+    function scaleTo(s) {
+      scale = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
+    }
+    function translateTo(p, l) {
+      l = point(l);
+      translate[0] += p[0] - l[0];
+      translate[1] += p[1] - l[1];
+    }
+    function rescale() {
+      if (x1) x1.domain(x0.range().map(function(x) {
+        return (x - translate[0]) / scale;
+      }).map(x0.invert));
+      if (y1) y1.domain(y0.range().map(function(y) {
+        return (y - translate[1]) / scale;
+      }).map(y0.invert));
+    }
+    function dispatch(event) {
+      rescale();
+      d3.event.preventDefault();
+      event({
+        type: "zoom",
+        scale: scale,
+        translate: translate
+      });
+    }
+    function mousedown() {
+      var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, moved = 0, w = d3.select(d3_window).on("mousemove.zoom", mousemove).on("mouseup.zoom", mouseup), l = location(d3.mouse(target));
+      d3_window.focus();
+      d3_eventCancel();
+      function mousemove() {
+        moved = 1;
+        translateTo(d3.mouse(target), l);
+        dispatch(event_);
+      }
+      function mouseup() {
+        if (moved) d3_eventCancel();
+        w.on("mousemove.zoom", null).on("mouseup.zoom", null);
+        if (moved && d3.event.target === eventTarget) w.on("click.zoom", click, true);
+      }
+      function click() {
+        d3_eventCancel();
+        w.on("click.zoom", null);
+      }
+    }
+    function mousewheel() {
+      if (!translate0) translate0 = location(d3.mouse(this));
+      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * scale);
+      translateTo(d3.mouse(this), translate0);
+      dispatch(event.of(this, arguments));
+    }
+    function mousemove() {
+      translate0 = null;
+    }
+    function dblclick() {
+      var p = d3.mouse(this), l = location(p), k = Math.log(scale) / Math.LN2;
+      scaleTo(Math.pow(2, d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1));
+      translateTo(p, l);
+      dispatch(event.of(this, arguments));
+    }
+    function touchstart() {
+      var touches = d3.touches(this), now = Date.now();
+      scale0 = scale;
+      translate0 = {};
+      touches.forEach(function(t) {
+        translate0[t.identifier] = location(t);
+      });
+      d3_eventCancel();
+      if (touches.length === 1) {
+        if (now - touchtime < 500) {
+          var p = touches[0], l = location(touches[0]);
+          scaleTo(scale * 2);
+          translateTo(p, l);
+          dispatch(event.of(this, arguments));
+        }
+        touchtime = now;
+      }
+    }
+    function touchmove() {
+      var touches = d3.touches(this), p0 = touches[0], l0 = translate0[p0.identifier];
+      if (p1 = touches[1]) {
+        var p1, l1 = translate0[p1.identifier];
+        p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];
+        l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];
+        scaleTo(d3.event.scale * scale0);
+      }
+      translateTo(p0, l0);
+      touchtime = null;
+      dispatch(event.of(this, arguments));
+    }
+    return d3.rebind(zoom, event, "on");
+  };
+  var d3_behavior_zoomInfinity = [ 0, Infinity ];
+  var d3_behavior_zoomDelta, d3_behavior_zoomWheel = "onwheel" in d3_document ? (d3_behavior_zoomDelta = function() {
+    return -d3.event.deltaY * (d3.event.deltaMode ? 120 : 1);
+  }, "wheel") : "onmousewheel" in d3_document ? (d3_behavior_zoomDelta = function() {
+    return d3.event.wheelDelta;
+  }, "mousewheel") : (d3_behavior_zoomDelta = function() {
+    return -d3.event.detail;
+  }, "MozMousePixelScroll");
   function d3_Color() {}
+  d3_Color.prototype.toString = function() {
+    return this.rgb() + "";
+  };
+  d3.hsl = function(h, s, l) {
+    return arguments.length === 1 ? h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : d3_hsl(+h, +s, +l);
+  };
+  function d3_hsl(h, s, l) {
+    return new d3_Hsl(h, s, l);
+  }
+  function d3_Hsl(h, s, l) {
+    this.h = h;
+    this.s = s;
+    this.l = l;
+  }
+  var d3_hslPrototype = d3_Hsl.prototype = new d3_Color();
+  d3_hslPrototype.brighter = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return d3_hsl(this.h, this.s, this.l / k);
+  };
+  d3_hslPrototype.darker = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return d3_hsl(this.h, this.s, k * this.l);
+  };
+  d3_hslPrototype.rgb = function() {
+    return d3_hsl_rgb(this.h, this.s, this.l);
+  };
+  function d3_hsl_rgb(h, s, l) {
+    var m1, m2;
+    h = h % 360;
+    if (h < 0) h += 360;
+    s = s < 0 ? 0 : s > 1 ? 1 : s;
+    l = l < 0 ? 0 : l > 1 ? 1 : l;
+    m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
+    m1 = 2 * l - m2;
+    function v(h) {
+      if (h > 360) h -= 360; else if (h < 0) h += 360;
+      if (h < 60) return m1 + (m2 - m1) * h / 60;
+      if (h < 180) return m2;
+      if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
+      return m1;
+    }
+    function vv(h) {
+      return Math.round(v(h) * 255);
+    }
+    return d3_rgb(vv(h + 120), vv(h), vv(h - 120));
+  }
+  var π = Math.PI, ε = 1e-6, d3_radians = π / 180, d3_degrees = 180 / π;
+  function d3_sgn(x) {
+    return x > 0 ? 1 : x < 0 ? -1 : 0;
+  }
+  function d3_acos(x) {
+    return Math.acos(Math.max(-1, Math.min(1, x)));
+  }
+  function d3_asin(x) {
+    return x > 1 ? π / 2 : x < -1 ? -π / 2 : Math.asin(x);
+  }
+  function d3_sinh(x) {
+    return (Math.exp(x) - Math.exp(-x)) / 2;
+  }
+  function d3_cosh(x) {
+    return (Math.exp(x) + Math.exp(-x)) / 2;
+  }
+  function d3_haversin(x) {
+    return (x = Math.sin(x / 2)) * x;
+  }
+  d3.hcl = function(h, c, l) {
+    return arguments.length === 1 ? h instanceof d3_Hcl ? d3_hcl(h.h, h.c, h.l) : h instanceof d3_Lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : d3_hcl(+h, +c, +l);
+  };
+  function d3_hcl(h, c, l) {
+    return new d3_Hcl(h, c, l);
+  }
+  function d3_Hcl(h, c, l) {
+    this.h = h;
+    this.c = c;
+    this.l = l;
+  }
+  var d3_hclPrototype = d3_Hcl.prototype = new d3_Color();
+  d3_hclPrototype.brighter = function(k) {
+    return d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
+  };
+  d3_hclPrototype.darker = function(k) {
+    return d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));
+  };
+  d3_hclPrototype.rgb = function() {
+    return d3_hcl_lab(this.h, this.c, this.l).rgb();
+  };
+  function d3_hcl_lab(h, c, l) {
+    return d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c);
+  }
+  d3.lab = function(l, a, b) {
+    return arguments.length === 1 ? l instanceof d3_Lab ? d3_lab(l.l, l.a, l.b) : l instanceof d3_Hcl ? d3_hcl_lab(l.l, l.c, l.h) : d3_rgb_lab((l = d3.rgb(l)).r, l.g, l.b) : d3_lab(+l, +a, +b);
+  };
+  function d3_lab(l, a, b) {
+    return new d3_Lab(l, a, b);
+  }
+  function d3_Lab(l, a, b) {
+    this.l = l;
+    this.a = a;
+    this.b = b;
+  }
+  var d3_lab_K = 18;
+  var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;
+  var d3_labPrototype = d3_Lab.prototype = new d3_Color();
+  d3_labPrototype.brighter = function(k) {
+    return d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
+  };
+  d3_labPrototype.darker = function(k) {
+    return d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
+  };
+  d3_labPrototype.rgb = function() {
+    return d3_lab_rgb(this.l, this.a, this.b);
+  };
+  function d3_lab_rgb(l, a, b) {
+    var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;
+    x = d3_lab_xyz(x) * d3_lab_X;
+    y = d3_lab_xyz(y) * d3_lab_Y;
+    z = d3_lab_xyz(z) * d3_lab_Z;
+    return d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));
+  }
+  function d3_lab_hcl(l, a, b) {
+    return d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l);
+  }
+  function d3_lab_xyz(x) {
+    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;
+  }
+  function d3_xyz_lab(x) {
+    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;
+  }
+  function d3_xyz_rgb(r) {
+    return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));
+  }
+  d3.rgb = function(r, g, b) {
+    return arguments.length === 1 ? r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : d3_rgb(~~r, ~~g, ~~b);
+  };
   function d3_rgb(r, g, b) {
     return new d3_Rgb(r, g, b);
   }
@@ -233,6 +1376,26 @@
     this.g = g;
     this.b = b;
   }
+  var d3_rgbPrototype = d3_Rgb.prototype = new d3_Color();
+  d3_rgbPrototype.brighter = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    var r = this.r, g = this.g, b = this.b, i = 30;
+    if (!r && !g && !b) return d3_rgb(i, i, i);
+    if (r && r < i) r = i;
+    if (g && g < i) g = i;
+    if (b && b < i) b = i;
+    return d3_rgb(Math.min(255, Math.floor(r / k)), Math.min(255, Math.floor(g / k)), Math.min(255, Math.floor(b / k)));
+  };
+  d3_rgbPrototype.darker = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return d3_rgb(Math.floor(k * this.r), Math.floor(k * this.g), Math.floor(k * this.b));
+  };
+  d3_rgbPrototype.hsl = function() {
+    return d3_rgb_hsl(this.r, this.g, this.b);
+  };
+  d3_rgbPrototype.toString = function() {
+    return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
+  };
   function d3_rgb_hex(v) {
     return v < 16 ? "0" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16);
   }
@@ -246,6 +1409,7 @@
         {
           return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100);
         }
+
        case "rgb":
         {
           return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2]));
@@ -297,3088 +1461,6 @@
     var f = parseFloat(c);
     return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
   }
-  function d3_hsl(h, s, l) {
-    return new d3_Hsl(h, s, l);
-  }
-  function d3_Hsl(h, s, l) {
-    this.h = h;
-    this.s = s;
-    this.l = l;
-  }
-  function d3_hsl_rgb(h, s, l) {
-    function v(h) {
-      if (h > 360) h -= 360; else if (h < 0) h += 360;
-      if (h < 60) return m1 + (m2 - m1) * h / 60;
-      if (h < 180) return m2;
-      if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
-      return m1;
-    }
-    function vv(h) {
-      return Math.round(v(h) * 255);
-    }
-    var m1, m2;
-    h = h % 360;
-    if (h < 0) h += 360;
-    s = s < 0 ? 0 : s > 1 ? 1 : s;
-    l = l < 0 ? 0 : l > 1 ? 1 : l;
-    m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
-    m1 = 2 * l - m2;
-    return d3_rgb(vv(h + 120), vv(h), vv(h - 120));
-  }
-  function d3_hcl(h, c, l) {
-    return new d3_Hcl(h, c, l);
-  }
-  function d3_Hcl(h, c, l) {
-    this.h = h;
-    this.c = c;
-    this.l = l;
-  }
-  function d3_hcl_lab(h, c, l) {
-    return d3_lab(l, Math.cos(h *= Math.PI / 180) * c, Math.sin(h) * c);
-  }
-  function d3_lab(l, a, b) {
-    return new d3_Lab(l, a, b);
-  }
-  function d3_Lab(l, a, b) {
-    this.l = l;
-    this.a = a;
-    this.b = b;
-  }
-  function d3_lab_rgb(l, a, b) {
-    var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;
-    x = d3_lab_xyz(x) * d3_lab_X;
-    y = d3_lab_xyz(y) * d3_lab_Y;
-    z = d3_lab_xyz(z) * d3_lab_Z;
-    return d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));
-  }
-  function d3_lab_hcl(l, a, b) {
-    return d3_hcl(Math.atan2(b, a) / Math.PI * 180, Math.sqrt(a * a + b * b), l);
-  }
-  function d3_lab_xyz(x) {
-    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;
-  }
-  function d3_xyz_lab(x) {
-    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;
-  }
-  function d3_xyz_rgb(r) {
-    return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));
-  }
-  function d3_selection(groups) {
-    d3_arraySubclass(groups, d3_selectionPrototype);
-    return groups;
-  }
-  function d3_selection_selector(selector) {
-    return function() {
-      return d3_select(selector, this);
-    };
-  }
-  function d3_selection_selectorAll(selector) {
-    return function() {
-      return d3_selectAll(selector, this);
-    };
-  }
-  function d3_selection_attr(name, value) {
-    function attrNull() {
-      this.removeAttribute(name);
-    }
-    function attrNullNS() {
-      this.removeAttributeNS(name.space, name.local);
-    }
-    function attrConstant() {
-      this.setAttribute(name, value);
-    }
-    function attrConstantNS() {
-      this.setAttributeNS(name.space, name.local, value);
-    }
-    function attrFunction() {
-      var x = value.apply(this, arguments);
-      if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);
-    }
-    function attrFunctionNS() {
-      var x = value.apply(this, arguments);
-      if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);
-    }
-    name = d3.ns.qualify(name);
-    return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;
-  }
-  function d3_selection_classedRe(name) {
-    return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
-  }
-  function d3_selection_classed(name, value) {
-    function classedConstant() {
-      var i = -1;
-      while (++i < n) name[i](this, value);
-    }
-    function classedFunction() {
-      var i = -1, x = value.apply(this, arguments);
-      while (++i < n) name[i](this, x);
-    }
-    name = name.trim().split(/\s+/).map(d3_selection_classedName);
-    var n = name.length;
-    return typeof value === "function" ? classedFunction : classedConstant;
-  }
-  function d3_selection_classedName(name) {
-    var re = d3_selection_classedRe(name);
-    return function(node, value) {
-      if (c = node.classList) return value ? c.add(name) : c.remove(name);
-      var c = node.className, cb = c.baseVal != null, cv = cb ? c.baseVal : c;
-      if (value) {
-        re.lastIndex = 0;
-        if (!re.test(cv)) {
-          cv = d3_collapse(cv + " " + name);
-          if (cb) c.baseVal = cv; else node.className = cv;
-        }
-      } else if (cv) {
-        cv = d3_collapse(cv.replace(re, " "));
-        if (cb) c.baseVal = cv; else node.className = cv;
-      }
-    };
-  }
-  function d3_selection_style(name, value, priority) {
-    function styleNull() {
-      this.style.removeProperty(name);
-    }
-    function styleConstant() {
-      this.style.setProperty(name, value, priority);
-    }
-    function styleFunction() {
-      var x = value.apply(this, arguments);
-      if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);
-    }
-    return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant;
-  }
-  function d3_selection_property(name, value) {
-    function propertyNull() {
-      delete this[name];
-    }
-    function propertyConstant() {
-      this[name] = value;
-    }
-    function propertyFunction() {
-      var x = value.apply(this, arguments);
-      if (x == null) delete this[name]; else this[name] = x;
-    }
-    return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;
-  }
-  function d3_selection_dataNode(data) {
-    return {
-      __data__: data
-    };
-  }
-  function d3_selection_filter(selector) {
-    return function() {
-      return d3_selectMatches(this, selector);
-    };
-  }
-  function d3_selection_sortComparator(comparator) {
-    if (!arguments.length) comparator = d3.ascending;
-    return function(a, b) {
-      return comparator(a && a.__data__, b && b.__data__);
-    };
-  }
-  function d3_selection_on(type, listener, capture) {
-    function onRemove() {
-      var wrapper = this[name];
-      if (wrapper) {
-        this.removeEventListener(type, wrapper, wrapper.$);
-        delete this[name];
-      }
-    }
-    function onAdd() {
-      function wrapper(e) {
-        var o = d3.event;
-        d3.event = e;
-        args[0] = node.__data__;
-        try {
-          listener.apply(node, args);
-        } finally {
-          d3.event = o;
-        }
-      }
-      var node = this, args = arguments;
-      onRemove.call(this);
-      this.addEventListener(type, this[name] = wrapper, wrapper.$ = capture);
-      wrapper._ = listener;
-    }
-    var name = "__on" + type, i = type.indexOf(".");
-    if (i > 0) type = type.substring(0, i);
-    return listener ? onAdd : onRemove;
-  }
-  function d3_selection_each(groups, callback) {
-    for (var j = 0, m = groups.length; j < m; j++) {
-      for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {
-        if (node = group[i]) callback(node, i, j);
-      }
-    }
-    return groups;
-  }
-  function d3_selection_enter(selection) {
-    d3_arraySubclass(selection, d3_selection_enterPrototype);
-    return selection;
-  }
-  function d3_transition(groups, id, time) {
-    d3_arraySubclass(groups, d3_transitionPrototype);
-    var tweens = new d3_Map, event = d3.dispatch("start", "end"), ease = d3_transitionEase;
-    groups.id = id;
-    groups.time = time;
-    groups.tween = function(name, tween) {
-      if (arguments.length < 2) return tweens.get(name);
-      if (tween == null) tweens.remove(name); else tweens.set(name, tween);
-      return groups;
-    };
-    groups.ease = function(value) {
-      if (!arguments.length) return ease;
-      ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments);
-      return groups;
-    };
-    groups.each = function(type, listener) {
-      if (arguments.length < 2) return d3_transition_each.call(groups, type);
-      event.on(type, listener);
-      return groups;
-    };
-    d3.timer(function(elapsed) {
-      return d3_selection_each(groups, function(node, i, j) {
-        function start(elapsed) {
-          if (lock.active > id) return stop();
-          lock.active = id;
-          tweens.forEach(function(key, value) {
-            if (value = value.call(node, d, i)) {
-              tweened.push(value);
-            }
-          });
-          event.start.call(node, d, i);
-          if (!tick(elapsed)) d3.timer(tick, 0, time);
-          return 1;
-        }
-        function tick(elapsed) {
-          if (lock.active !== id) return stop();
-          var t = (elapsed - delay) / duration, e = ease(t), n = tweened.length;
-          while (n > 0) {
-            tweened[--n].call(node, e);
-          }
-          if (t >= 1) {
-            stop();
-            d3_transitionId = id;
-            event.end.call(node, d, i);
-            d3_transitionId = 0;
-            return 1;
-          }
-        }
-        function stop() {
-          if (!--lock.count) delete node.__transition__;
-          return 1;
-        }
-        var tweened = [], delay = node.delay, duration = node.duration, lock = (node = node.node).__transition__ || (node.__transition__ = {
-          active: 0,
-          count: 0
-        }), d = node.__data__;
-        ++lock.count;
-        delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time);
-      });
-    }, 0, time);
-    return groups;
-  }
-  function d3_transition_each(callback) {
-    var id = d3_transitionId, ease = d3_transitionEase, delay = d3_transitionDelay, duration = d3_transitionDuration;
-    d3_transitionId = this.id;
-    d3_transitionEase = this.ease();
-    d3_selection_each(this, function(node, i, j) {
-      d3_transitionDelay = node.delay;
-      d3_transitionDuration = node.duration;
-      callback.call(node = node.node, node.__data__, i, j);
-    });
-    d3_transitionId = id;
-    d3_transitionEase = ease;
-    d3_transitionDelay = delay;
-    d3_transitionDuration = duration;
-    return this;
-  }
-  function d3_tweenNull(d, i, a) {
-    return a != "" && d3_tweenRemove;
-  }
-  function d3_tweenByName(b, name) {
-    return d3.tween(b, d3_interpolateByName(name));
-  }
-  function d3_timer_step() {
-    var elapsed, now = Date.now(), t1 = d3_timer_queue;
-    while (t1) {
-      elapsed = now - t1.then;
-      if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed);
-      t1 = t1.next;
-    }
-    var delay = d3_timer_flush() - now;
-    if (delay > 24) {
-      if (isFinite(delay)) {
-        clearTimeout(d3_timer_timeout);
-        d3_timer_timeout = setTimeout(d3_timer_step, delay);
-      }
-      d3_timer_interval = 0;
-    } else {
-      d3_timer_interval = 1;
-      d3_timer_frame(d3_timer_step);
-    }
-  }
-  function d3_timer_flush() {
-    var t0 = null, t1 = d3_timer_queue, then = Infinity;
-    while (t1) {
-      if (t1.flush) {
-        delete d3_timer_byId[t1.callback.id];
-        t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;
-      } else {
-        then = Math.min(then, t1.then + t1.delay);
-        t1 = (t0 = t1).next;
-      }
-    }
-    return then;
-  }
-  function d3_mousePoint(container, e) {
-    var svg = container.ownerSVGElement || container;
-    if (svg.createSVGPoint) {
-      var point = svg.createSVGPoint();
-      if (d3_mouse_bug44083 < 0 && (window.scrollX || window.scrollY)) {
-        svg = d3.select(document.body).append("svg").style("position", "absolute").style("top", 0).style("left", 0);
-        var ctm = svg[0][0].getScreenCTM();
-        d3_mouse_bug44083 = !(ctm.f || ctm.e);
-        svg.remove();
-      }
-      if (d3_mouse_bug44083) {
-        point.x = e.pageX;
-        point.y = e.pageY;
-      } else {
-        point.x = e.clientX;
-        point.y = e.clientY;
-      }
-      point = point.matrixTransform(container.getScreenCTM().inverse());
-      return [ point.x, point.y ];
-    }
-    var rect = container.getBoundingClientRect();
-    return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];
-  }
-  function d3_noop() {}
-  function d3_scaleExtent(domain) {
-    var start = domain[0], stop = domain[domain.length - 1];
-    return start < stop ? [ start, stop ] : [ stop, start ];
-  }
-  function d3_scaleRange(scale) {
-    return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
-  }
-  function d3_scale_nice(domain, nice) {
-    var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;
-    if (x1 < x0) {
-      dx = i0, i0 = i1, i1 = dx;
-      dx = x0, x0 = x1, x1 = dx;
-    }
-    if (nice = nice(x1 - x0)) {
-      domain[i0] = nice.floor(x0);
-      domain[i1] = nice.ceil(x1);
-    }
-    return domain;
-  }
-  function d3_scale_niceDefault() {
-    return Math;
-  }
-  function d3_scale_linear(domain, range, interpolate, clamp) {
-    function rescale() {
-      var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
-      output = linear(domain, range, uninterpolate, interpolate);
-      input = linear(range, domain, uninterpolate, d3.interpolate);
-      return scale;
-    }
-    function scale(x) {
-      return output(x);
-    }
-    var output, input;
-    scale.invert = function(y) {
-      return input(y);
-    };
-    scale.domain = function(x) {
-      if (!arguments.length) return domain;
-      domain = x.map(Number);
-      return rescale();
-    };
-    scale.range = function(x) {
-      if (!arguments.length) return range;
-      range = x;
-      return rescale();
-    };
-    scale.rangeRound = function(x) {
-      return scale.range(x).interpolate(d3.interpolateRound);
-    };
-    scale.clamp = function(x) {
-      if (!arguments.length) return clamp;
-      clamp = x;
-      return rescale();
-    };
-    scale.interpolate = function(x) {
-      if (!arguments.length) return interpolate;
-      interpolate = x;
-      return rescale();
-    };
-    scale.ticks = function(m) {
-      return d3_scale_linearTicks(domain, m);
-    };
-    scale.tickFormat = function(m) {
-      return d3_scale_linearTickFormat(domain, m);
-    };
-    scale.nice = function() {
-      d3_scale_nice(domain, d3_scale_linearNice);
-      return rescale();
-    };
-    scale.copy = function() {
-      return d3_scale_linear(domain, range, interpolate, clamp);
-    };
-    return rescale();
-  }
-  function d3_scale_linearRebind(scale, linear) {
-    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
-  }
-  function d3_scale_linearNice(dx) {
-    dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);
-    return dx && {
-      floor: function(x) {
-        return Math.floor(x / dx) * dx;
-      },
-      ceil: function(x) {
-        return Math.ceil(x / dx) * dx;
-      }
-    };
-  }
-  function d3_scale_linearTickRange(domain, m) {
-    var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;
-    if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;
-    extent[0] = Math.ceil(extent[0] / step) * step;
-    extent[1] = Math.floor(extent[1] / step) * step + step * .5;
-    extent[2] = step;
-    return extent;
-  }
-  function d3_scale_linearTicks(domain, m) {
-    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
-  }
-  function d3_scale_linearTickFormat(domain, m) {
-    return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f");
-  }
-  function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
-    var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);
-    return function(x) {
-      return i(u(x));
-    };
-  }
-  function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
-    var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;
-    if (domain[k] < domain[0]) {
-      domain = domain.slice().reverse();
-      range = range.slice().reverse();
-    }
-    while (++j <= k) {
-      u.push(uninterpolate(domain[j - 1], domain[j]));
-      i.push(interpolate(range[j - 1], range[j]));
-    }
-    return function(x) {
-      var j = d3.bisect(domain, x, 1, k) - 1;
-      return i[j](u[j](x));
-    };
-  }
-  function d3_scale_log(linear, log) {
-    function scale(x) {
-      return linear(log(x));
-    }
-    var pow = log.pow;
-    scale.invert = function(x) {
-      return pow(linear.invert(x));
-    };
-    scale.domain = function(x) {
-      if (!arguments.length) return linear.domain().map(pow);
-      log = x[0] < 0 ? d3_scale_logn : d3_scale_logp;
-      pow = log.pow;
-      linear.domain(x.map(log));
-      return scale;
-    };
-    scale.nice = function() {
-      linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault));
-      return scale;
-    };
-    scale.ticks = function() {
-      var extent = d3_scaleExtent(linear.domain()), ticks = [];
-      if (extent.every(isFinite)) {
-        var i = Math.floor(extent[0]), j = Math.ceil(extent[1]), u = pow(extent[0]), v = pow(extent[1]);
-        if (log === d3_scale_logn) {
-          ticks.push(pow(i));
-          for (; i++ < j; ) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k);
-        } else {
-          for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);
-          ticks.push(pow(i));
-        }
-        for (i = 0; ticks[i] < u; i++) {}
-        for (j = ticks.length; ticks[j - 1] > v; j--) {}
-        ticks = ticks.slice(i, j);
-      }
-      return ticks;
-    };
-    scale.tickFormat = function(n, format) {
-      if (arguments.length < 2) format = d3_scale_logFormat;
-      if (arguments.length < 1) return format;
-      var k = Math.max(.1, n / scale.ticks().length), f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil), e;
-      return function(d) {
-        return d / pow(f(log(d) + e)) <= k ? format(d) : "";
-      };
-    };
-    scale.copy = function() {
-      return d3_scale_log(linear.copy(), log);
-    };
-    return d3_scale_linearRebind(scale, linear);
-  }
-  function d3_scale_logp(x) {
-    return Math.log(x < 0 ? 0 : x) / Math.LN10;
-  }
-  function d3_scale_logn(x) {
-    return -Math.log(x > 0 ? 0 : -x) / Math.LN10;
-  }
-  function d3_scale_pow(linear, exponent) {
-    function scale(x) {
-      return linear(powp(x));
-    }
-    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);
-    scale.invert = function(x) {
-      return powb(linear.invert(x));
-    };
-    scale.domain = function(x) {
-      if (!arguments.length) return linear.domain().map(powb);
-      linear.domain(x.map(powp));
-      return scale;
-    };
-    scale.ticks = function(m) {
-      return d3_scale_linearTicks(scale.domain(), m);
-    };
-    scale.tickFormat = function(m) {
-      return d3_scale_linearTickFormat(scale.domain(), m);
-    };
-    scale.nice = function() {
-      return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));
-    };
-    scale.exponent = function(x) {
-      if (!arguments.length) return exponent;
-      var domain = scale.domain();
-      powp = d3_scale_powPow(exponent = x);
-      powb = d3_scale_powPow(1 / exponent);
-      return scale.domain(domain);
-    };
-    scale.copy = function() {
-      return d3_scale_pow(linear.copy(), exponent);
-    };
-    return d3_scale_linearRebind(scale, linear);
-  }
-  function d3_scale_powPow(e) {
-    return function(x) {
-      return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
-    };
-  }
-  function d3_scale_ordinal(domain, ranger) {
-    function scale(x) {
-      return range[((index.get(x) || index.set(x, domain.push(x))) - 1) % range.length];
-    }
-    function steps(start, step) {
-      return d3.range(domain.length).map(function(i) {
-        return start + step * i;
-      });
-    }
-    var index, range, rangeBand;
-    scale.domain = function(x) {
-      if (!arguments.length) return domain;
-      domain = [];
-      index = new d3_Map;
-      var i = -1, n = x.length, xi;
-      while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
-      return scale[ranger.t].apply(scale, ranger.a);
-    };
-    scale.range = function(x) {
-      if (!arguments.length) return range;
-      range = x;
-      rangeBand = 0;
-      ranger = {
-        t: "range",
-        a: arguments
-      };
-      return scale;
-    };
-    scale.rangePoints = function(x, padding) {
-      if (arguments.length < 2) padding = 0;
-      var start = x[0], stop = x[1], step = (stop - start) / (Math.max(1, domain.length - 1) + padding);
-      range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step);
-      rangeBand = 0;
-      ranger = {
-        t: "rangePoints",
-        a: arguments
-      };
-      return scale;
-    };
-    scale.rangeBands = function(x, padding, outerPadding) {
-      if (arguments.length < 2) padding = 0;
-      if (arguments.length < 3) outerPadding = padding;
-      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);
-      range = steps(start + step * outerPadding, step);
-      if (reverse) range.reverse();
-      rangeBand = step * (1 - padding);
-      ranger = {
-        t: "rangeBands",
-        a: arguments
-      };
-      return scale;
-    };
-    scale.rangeRoundBands = function(x, padding, outerPadding) {
-      if (arguments.length < 2) padding = 0;
-      if (arguments.length < 3) outerPadding = padding;
-      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding)), error = stop - start - (domain.length - padding) * step;
-      range = steps(start + Math.round(error / 2), step);
-      if (reverse) range.reverse();
-      rangeBand = Math.round(step * (1 - padding));
-      ranger = {
-        t: "rangeRoundBands",
-        a: arguments
-      };
-      return scale;
-    };
-    scale.rangeBand = function() {
-      return rangeBand;
-    };
-    scale.rangeExtent = function() {
-      return d3_scaleExtent(ranger.a[0]);
-    };
-    scale.copy = function() {
-      return d3_scale_ordinal(domain, ranger);
-    };
-    return scale.domain(domain);
-  }
-  function d3_scale_quantile(domain, range) {
-    function rescale() {
-      var k = 0, n = domain.length, q = range.length;
-      thresholds = [];
-      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
-      return scale;
-    }
-    function scale(x) {
-      if (isNaN(x = +x)) return NaN;
-      return range[d3.bisect(thresholds, x)];
-    }
-    var thresholds;
-    scale.domain = function(x) {
-      if (!arguments.length) return domain;
-      domain = x.filter(function(d) {
-        return !isNaN(d);
-      }).sort(d3.ascending);
-      return rescale();
-    };
-    scale.range = function(x) {
-      if (!arguments.length) return range;
-      range = x;
-      return rescale();
-    };
-    scale.quantiles = function() {
-      return thresholds;
-    };
-    scale.copy = function() {
-      return d3_scale_quantile(domain, range);
-    };
-    return rescale();
-  }
-  function d3_scale_quantize(x0, x1, range) {
-    function scale(x) {
-      return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
-    }
-    function rescale() {
-      kx = range.length / (x1 - x0);
-      i = range.length - 1;
-      return scale;
-    }
-    var kx, i;
-    scale.domain = function(x) {
-      if (!arguments.length) return [ x0, x1 ];
-      x0 = +x[0];
-      x1 = +x[x.length - 1];
-      return rescale();
-    };
-    scale.range = function(x) {
-      if (!arguments.length) return range;
-      range = x;
-      return rescale();
-    };
-    scale.copy = function() {
-      return d3_scale_quantize(x0, x1, range);
-    };
-    return rescale();
-  }
-  function d3_scale_threshold(domain, range) {
-    function scale(x) {
-      return range[d3.bisect(domain, x)];
-    }
-    scale.domain = function(_) {
-      if (!arguments.length) return domain;
-      domain = _;
-      return scale;
-    };
-    scale.range = function(_) {
-      if (!arguments.length) return range;
-      range = _;
-      return scale;
-    };
-    scale.copy = function() {
-      return d3_scale_threshold(domain, range);
-    };
-    return scale;
-  }
-  function d3_scale_identity(domain) {
-    function identity(x) {
-      return +x;
-    }
-    identity.invert = identity;
-    identity.domain = identity.range = function(x) {
-      if (!arguments.length) return domain;
-      domain = x.map(identity);
-      return identity;
-    };
-    identity.ticks = function(m) {
-      return d3_scale_linearTicks(domain, m);
-    };
-    identity.tickFormat = function(m) {
-      return d3_scale_linearTickFormat(domain, m);
-    };
-    identity.copy = function() {
-      return d3_scale_identity(domain);
-    };
-    return identity;
-  }
-  function d3_svg_arcInnerRadius(d) {
-    return d.innerRadius;
-  }
-  function d3_svg_arcOuterRadius(d) {
-    return d.outerRadius;
-  }
-  function d3_svg_arcStartAngle(d) {
-    return d.startAngle;
-  }
-  function d3_svg_arcEndAngle(d) {
-    return d.endAngle;
-  }
-  function d3_svg_line(projection) {
-    function line(data) {
-      function segment() {
-        segments.push("M", interpolate(projection(points), tension));
-      }
-      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);
-      while (++i < n) {
-        if (defined.call(this, d = data[i], i)) {
-          points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);
-        } else if (points.length) {
-          segment();
-          points = [];
-        }
-      }
-      if (points.length) segment();
-      return segments.length ? segments.join("") : null;
-    }
-    var x = d3_svg_lineX, y = d3_svg_lineY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;
-    line.x = function(_) {
-      if (!arguments.length) return x;
-      x = _;
-      return line;
-    };
-    line.y = function(_) {
-      if (!arguments.length) return y;
-      y = _;
-      return line;
-    };
-    line.defined = function(_) {
-      if (!arguments.length) return defined;
-      defined = _;
-      return line;
-    };
-    line.interpolate = function(_) {
-      if (!arguments.length) return interpolateKey;
-      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
-      return line;
-    };
-    line.tension = function(_) {
-      if (!arguments.length) return tension;
-      tension = _;
-      return line;
-    };
-    return line;
-  }
-  function d3_svg_lineX(d) {
-    return d[0];
-  }
-  function d3_svg_lineY(d) {
-    return d[1];
-  }
-  function d3_svg_lineLinear(points) {
-    return points.join("L");
-  }
-  function d3_svg_lineLinearClosed(points) {
-    return d3_svg_lineLinear(points) + "Z";
-  }
-  function d3_svg_lineStepBefore(points) {
-    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
-    while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
-    return path.join("");
-  }
-  function d3_svg_lineStepAfter(points) {
-    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
-    while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
-    return path.join("");
-  }
-  function d3_svg_lineCardinalOpen(points, tension) {
-    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1), d3_svg_lineCardinalTangents(points, tension));
-  }
-  function d3_svg_lineCardinalClosed(points, tension) {
-    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite((points.push(points[0]), points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));
-  }
-  function d3_svg_lineCardinal(points, tension, closed) {
-    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));
-  }
-  function d3_svg_lineHermite(points, tangents) {
-    if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {
-      return d3_svg_lineLinear(points);
-    }
-    var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;
-    if (quad) {
-      path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1];
-      p0 = points[1];
-      pi = 2;
-    }
-    if (tangents.length > 1) {
-      t = tangents[1];
-      p = points[pi];
-      pi++;
-      path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
-      for (var i = 2; i < tangents.length; i++, pi++) {
-        p = points[pi];
-        t = tangents[i];
-        path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
-      }
-    }
-    if (quad) {
-      var lp = points[pi];
-      path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1];
-    }
-    return path;
-  }
-  function d3_svg_lineCardinalTangents(points, tension) {
-    var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;
-    while (++i < n) {
-      p0 = p1;
-      p1 = p2;
-      p2 = points[i];
-      tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);
-    }
-    return tangents;
-  }
-  function d3_svg_lineBasis(points) {
-    if (points.length < 3) return d3_svg_lineLinear(points);
-    var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0 ];
-    d3_svg_lineBasisBezier(path, px, py);
-    while (++i < n) {
-      pi = points[i];
-      px.shift();
-      px.push(pi[0]);
-      py.shift();
-      py.push(pi[1]);
-      d3_svg_lineBasisBezier(path, px, py);
-    }
-    i = -1;
-    while (++i < 2) {
-      px.shift();
-      px.push(pi[0]);
-      py.shift();
-      py.push(pi[1]);
-      d3_svg_lineBasisBezier(path, px, py);
-    }
-    return path.join("");
-  }
-  function d3_svg_lineBasisOpen(points) {
-    if (points.length < 4) return d3_svg_lineLinear(points);
-    var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];
-    while (++i < 3) {
-      pi = points[i];
-      px.push(pi[0]);
-      py.push(pi[1]);
-    }
-    path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
-    --i;
-    while (++i < n) {
-      pi = points[i];
-      px.shift();
-      px.push(pi[0]);
-      py.shift();
-      py.push(pi[1]);
-      d3_svg_lineBasisBezier(path, px, py);
-    }
-    return path.join("");
-  }
-  function d3_svg_lineBasisClosed(points) {
-    var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];
-    while (++i < 4) {
-      pi = points[i % n];
-      px.push(pi[0]);
-      py.push(pi[1]);
-    }
-    path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
-    --i;
-    while (++i < m) {
-      pi = points[i % n];
-      px.shift();
-      px.push(pi[0]);
-      py.shift();
-      py.push(pi[1]);
-      d3_svg_lineBasisBezier(path, px, py);
-    }
-    return path.join("");
-  }
-  function d3_svg_lineBundle(points, tension) {
-    var n = points.length - 1;
-    if (n) {
-      var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;
-      while (++i <= n) {
-        p = points[i];
-        t = i / n;
-        p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
-        p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
-      }
-    }
-    return d3_svg_lineBasis(points);
-  }
-  function d3_svg_lineDot4(a, b) {
-    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
-  }
-  function d3_svg_lineBasisBezier(path, x, y) {
-    path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
-  }
-  function d3_svg_lineSlope(p0, p1) {
-    return (p1[1] - p0[1]) / (p1[0] - p0[0]);
-  }
-  function d3_svg_lineFiniteDifferences(points) {
-    var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);
-    while (++i < j) {
-      m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;
-    }
-    m[i] = d;
-    return m;
-  }
-  function d3_svg_lineMonotoneTangents(points) {
-    var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;
-    while (++i < j) {
-      d = d3_svg_lineSlope(points[i], points[i + 1]);
-      if (Math.abs(d) < 1e-6) {
-        m[i] = m[i + 1] = 0;
-      } else {
-        a = m[i] / d;
-        b = m[i + 1] / d;
-        s = a * a + b * b;
-        if (s > 9) {
-          s = d * 3 / Math.sqrt(s);
-          m[i] = s * a;
-          m[i + 1] = s * b;
-        }
-      }
-    }
-    i = -1;
-    while (++i <= j) {
-      s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));
-      tangents.push([ s || 0, m[i] * s || 0 ]);
-    }
-    return tangents;
-  }
-  function d3_svg_lineMonotone(points) {
-    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
-  }
-  function d3_svg_lineRadial(points) {
-    var point, i = -1, n = points.length, r, a;
-    while (++i < n) {
-      point = points[i];
-      r = point[0];
-      a = point[1] + d3_svg_arcOffset;
-      point[0] = r * Math.cos(a);
-      point[1] = r * Math.sin(a);
-    }
-    return points;
-  }
-  function d3_svg_area(projection) {
-    function area(data) {
-      function segment() {
-        segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");
-      }
-      var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {
-        return x;
-      } : d3_functor(x1), fy1 = y0 === y1 ? function() {
-        return y;
-      } : d3_functor(y1), x, y;
-      while (++i < n) {
-        if (defined.call(this, d = data[i], i)) {
-          points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);
-          points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);
-        } else if (points0.length) {
-          segment();
-          points0 = [];
-          points1 = [];
-        }
-      }
-      if (points0.length) segment();
-      return segments.length ? segments.join("") : null;
-    }
-    var x0 = d3_svg_lineX, x1 = d3_svg_lineX, y0 = 0, y1 = d3_svg_lineY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;
-    area.x = function(_) {
-      if (!arguments.length) return x1;
-      x0 = x1 = _;
-      return area;
-    };
-    area.x0 = function(_) {
-      if (!arguments.length) return x0;
-      x0 = _;
-      return area;
-    };
-    area.x1 = function(_) {
-      if (!arguments.length) return x1;
-      x1 = _;
-      return area;
-    };
-    area.y = function(_) {
-      if (!arguments.length) return y1;
-      y0 = y1 = _;
-      return area;
-    };
-    area.y0 = function(_) {
-      if (!arguments.length) return y0;
-      y0 = _;
-      return area;
-    };
-    area.y1 = function(_) {
-      if (!arguments.length) return y1;
-      y1 = _;
-      return area;
-    };
-    area.defined = function(_) {
-      if (!arguments.length) return defined;
-      defined = _;
-      return area;
-    };
-    area.interpolate = function(_) {
-      if (!arguments.length) return interpolateKey;
-      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
-      interpolateReverse = interpolate.reverse || interpolate;
-      L = interpolate.closed ? "M" : "L";
-      return area;
-    };
-    area.tension = function(_) {
-      if (!arguments.length) return tension;
-      tension = _;
-      return area;
-    };
-    return area;
-  }
-  function d3_svg_chordSource(d) {
-    return d.source;
-  }
-  function d3_svg_chordTarget(d) {
-    return d.target;
-  }
-  function d3_svg_chordRadius(d) {
-    return d.radius;
-  }
-  function d3_svg_chordStartAngle(d) {
-    return d.startAngle;
-  }
-  function d3_svg_chordEndAngle(d) {
-    return d.endAngle;
-  }
-  function d3_svg_diagonalProjection(d) {
-    return [ d.x, d.y ];
-  }
-  function d3_svg_diagonalRadialProjection(projection) {
-    return function() {
-      var d = projection.apply(this, arguments), r = d[0], a = d[1] + d3_svg_arcOffset;
-      return [ r * Math.cos(a), r * Math.sin(a) ];
-    };
-  }
-  function d3_svg_symbolSize() {
-    return 64;
-  }
-  function d3_svg_symbolType() {
-    return "circle";
-  }
-  function d3_svg_symbolCircle(size) {
-    var r = Math.sqrt(size / Math.PI);
-    return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";
-  }
-  function d3_svg_axisX(selection, x) {
-    selection.attr("transform", function(d) {
-      return "translate(" + x(d) + ",0)";
-    });
-  }
-  function d3_svg_axisY(selection, y) {
-    selection.attr("transform", function(d) {
-      return "translate(0," + y(d) + ")";
-    });
-  }
-  function d3_svg_axisSubdivide(scale, ticks, m) {
-    subticks = [];
-    if (m && ticks.length > 1) {
-      var extent = d3_scaleExtent(scale.domain()), subticks, i = -1, n = ticks.length, d = (ticks[1] - ticks[0]) / ++m, j, v;
-      while (++i < n) {
-        for (j = m; --j > 0; ) {
-          if ((v = +ticks[i] - j * d) >= extent[0]) {
-            subticks.push(v);
-          }
-        }
-      }
-      for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1]; ) {
-        subticks.push(v);
-      }
-    }
-    return subticks;
-  }
-  function d3_behavior_zoomDelta() {
-    if (!d3_behavior_zoomDiv) {
-      d3_behavior_zoomDiv = d3.select("body").append("div").style("visibility", "hidden").style("top", 0).style("height", 0).style("width", 0).style("overflow-y", "scroll").append("div").style("height", "2000px").node().parentNode;
-    }
-    var e = d3.event, delta;
-    try {
-      d3_behavior_zoomDiv.scrollTop = 1e3;
-      d3_behavior_zoomDiv.dispatchEvent(e);
-      delta = 1e3 - d3_behavior_zoomDiv.scrollTop;
-    } catch (error) {
-      delta = e.wheelDelta || -e.detail * 5;
-    }
-    return delta;
-  }
-  function d3_layout_bundlePath(link) {
-    var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];
-    while (start !== lca) {
-      start = start.parent;
-      points.push(start);
-    }
-    var k = points.length;
-    while (end !== lca) {
-      points.splice(k, 0, end);
-      end = end.parent;
-    }
-    return points;
-  }
-  function d3_layout_bundleAncestors(node) {
-    var ancestors = [], parent = node.parent;
-    while (parent != null) {
-      ancestors.push(node);
-      node = parent;
-      parent = parent.parent;
-    }
-    ancestors.push(node);
-    return ancestors;
-  }
-  function d3_layout_bundleLeastCommonAncestor(a, b) {
-    if (a === b) return a;
-    var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;
-    while (aNode === bNode) {
-      sharedNode = aNode;
-      aNode = aNodes.pop();
-      bNode = bNodes.pop();
-    }
-    return sharedNode;
-  }
-  function d3_layout_forceDragstart(d) {
-    d.fixed |= 2;
-  }
-  function d3_layout_forceDragend(d) {
-    d.fixed &= 1;
-  }
-  function d3_layout_forceMouseover(d) {
-    d.fixed |= 4;
-  }
-  function d3_layout_forceMouseout(d) {
-    d.fixed &= 3;
-  }
-  function d3_layout_forceAccumulate(quad, alpha, charges) {
-    var cx = 0, cy = 0;
-    quad.charge = 0;
-    if (!quad.leaf) {
-      var nodes = quad.nodes, n = nodes.length, i = -1, c;
-      while (++i < n) {
-        c = nodes[i];
-        if (c == null) continue;
-        d3_layout_forceAccumulate(c, alpha, charges);
-        quad.charge += c.charge;
-        cx += c.charge * c.cx;
-        cy += c.charge * c.cy;
-      }
-    }
-    if (quad.point) {
-      if (!quad.leaf) {
-        quad.point.x += Math.random() - .5;
-        quad.point.y += Math.random() - .5;
-      }
-      var k = alpha * charges[quad.point.index];
-      quad.charge += quad.pointCharge = k;
-      cx += k * quad.point.x;
-      cy += k * quad.point.y;
-    }
-    quad.cx = cx / quad.charge;
-    quad.cy = cy / quad.charge;
-  }
-  function d3_layout_forceLinkDistance(link) {
-    return 20;
-  }
-  function d3_layout_forceLinkStrength(link) {
-    return 1;
-  }
-  function d3_layout_stackX(d) {
-    return d.x;
-  }
-  function d3_layout_stackY(d) {
-    return d.y;
-  }
-  function d3_layout_stackOut(d, y0, y) {
-    d.y0 = y0;
-    d.y = y;
-  }
-  function d3_layout_stackOrderDefault(data) {
-    return d3.range(data.length);
-  }
-  function d3_layout_stackOffsetZero(data) {
-    var j = -1, m = data[0].length, y0 = [];
-    while (++j < m) y0[j] = 0;
-    return y0;
-  }
-  function d3_layout_stackMaxIndex(array) {
-    var i = 1, j = 0, v = array[0][1], k, n = array.length;
-    for (; i < n; ++i) {
-      if ((k = array[i][1]) > v) {
-        j = i;
-        v = k;
-      }
-    }
-    return j;
-  }
-  function d3_layout_stackReduceSum(d) {
-    return d.reduce(d3_layout_stackSum, 0);
-  }
-  function d3_layout_stackSum(p, d) {
-    return p + d[1];
-  }
-  function d3_layout_histogramBinSturges(range, values) {
-    return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
-  }
-  function d3_layout_histogramBinFixed(range, n) {
-    var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];
-    while (++x <= n) f[x] = m * x + b;
-    return f;
-  }
-  function d3_layout_histogramRange(values) {
-    return [ d3.min(values), d3.max(values) ];
-  }
-  function d3_layout_hierarchyRebind(object, hierarchy) {
-    d3.rebind(object, hierarchy, "sort", "children", "value");
-    object.links = d3_layout_hierarchyLinks;
-    object.nodes = function(d) {
-      d3_layout_hierarchyInline = true;
-      return (object.nodes = object)(d);
-    };
-    return object;
-  }
-  function d3_layout_hierarchyChildren(d) {
-    return d.children;
-  }
-  function d3_layout_hierarchyValue(d) {
-    return d.value;
-  }
-  function d3_layout_hierarchySort(a, b) {
-    return b.value - a.value;
-  }
-  function d3_layout_hierarchyLinks(nodes) {
-    return d3.merge(nodes.map(function(parent) {
-      return (parent.children || []).map(function(child) {
-        return {
-          source: parent,
-          target: child
-        };
-      });
-    }));
-  }
-  function d3_layout_packSort(a, b) {
-    return a.value - b.value;
-  }
-  function d3_layout_packInsert(a, b) {
-    var c = a._pack_next;
-    a._pack_next = b;
-    b._pack_prev = a;
-    b._pack_next = c;
-    c._pack_prev = b;
-  }
-  function d3_layout_packSplice(a, b) {
-    a._pack_next = b;
-    b._pack_prev = a;
-  }
-  function d3_layout_packIntersects(a, b) {
-    var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;
-    return dr * dr - dx * dx - dy * dy > .001;
-  }
-  function d3_layout_packSiblings(node) {
-    function bound(node) {
-      xMin = Math.min(node.x - node.r, xMin);
-      xMax = Math.max(node.x + node.r, xMax);
-      yMin = Math.min(node.y - node.r, yMin);
-      yMax = Math.max(node.y + node.r, yMax);
-    }
-    if (!(nodes = node.children) || !(n = nodes.length)) return;
-    var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;
-    nodes.forEach(d3_layout_packLink);
-    a = nodes[0];
-    a.x = -a.r;
-    a.y = 0;
-    bound(a);
-    if (n > 1) {
-      b = nodes[1];
-      b.x = b.r;
-      b.y = 0;
-      bound(b);
-      if (n > 2) {
-        c = nodes[2];
-        d3_layout_packPlace(a, b, c);
-        bound(c);
-        d3_layout_packInsert(a, c);
-        a._pack_prev = c;
-        d3_layout_packInsert(c, b);
-        b = a._pack_next;
-        for (i = 3; i < n; i++) {
-          d3_layout_packPlace(a, b, c = nodes[i]);
-          var isect = 0, s1 = 1, s2 = 1;
-          for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
-            if (d3_layout_packIntersects(j, c)) {
-              isect = 1;
-              break;
-            }
-          }
-          if (isect == 1) {
-            for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
-              if (d3_layout_packIntersects(k, c)) {
-                break;
-              }
-            }
-          }
-          if (isect) {
-            if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);
-            i--;
-          } else {
-            d3_layout_packInsert(a, c);
-            b = c;
-            bound(c);
-          }
-        }
-      }
-    }
-    var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;
-    for (i = 0; i < n; i++) {
-      c = nodes[i];
-      c.x -= cx;
-      c.y -= cy;
-      cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));
-    }
-    node.r = cr;
-    nodes.forEach(d3_layout_packUnlink);
-  }
-  function d3_layout_packLink(node) {
-    node._pack_next = node._pack_prev = node;
-  }
-  function d3_layout_packUnlink(node) {
-    delete node._pack_next;
-    delete node._pack_prev;
-  }
-  function d3_layout_packTransform(node, x, y, k) {
-    var children = node.children;
-    node.x = x += k * node.x;
-    node.y = y += k * node.y;
-    node.r *= k;
-    if (children) {
-      var i = -1, n = children.length;
-      while (++i < n) d3_layout_packTransform(children[i], x, y, k);
-    }
-  }
-  function d3_layout_packPlace(a, b, c) {
-    var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;
-    if (db && (dx || dy)) {
-      var da = b.r + c.r, dc = dx * dx + dy * dy;
-      da *= da;
-      db *= db;
-      var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
-      c.x = a.x + x * dx + y * dy;
-      c.y = a.y + x * dy - y * dx;
-    } else {
-      c.x = a.x + db;
-      c.y = a.y;
-    }
-  }
-  function d3_layout_clusterY(children) {
-    return 1 + d3.max(children, function(child) {
-      return child.y;
-    });
-  }
-  function d3_layout_clusterX(children) {
-    return children.reduce(function(x, child) {
-      return x + child.x;
-    }, 0) / children.length;
-  }
-  function d3_layout_clusterLeft(node) {
-    var children = node.children;
-    return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
-  }
-  function d3_layout_clusterRight(node) {
-    var children = node.children, n;
-    return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
-  }
-  function d3_layout_treeSeparation(a, b) {
-    return a.parent == b.parent ? 1 : 2;
-  }
-  function d3_layout_treeLeft(node) {
-    var children = node.children;
-    return children && children.length ? children[0] : node._tree.thread;
-  }
-  function d3_layout_treeRight(node) {
-    var children = node.children, n;
-    return children && (n = children.length) ? children[n - 1] : node._tree.thread;
-  }
-  function d3_layout_treeSearch(node, compare) {
-    var children = node.children;
-    if (children && (n = children.length)) {
-      var child, n, i = -1;
-      while (++i < n) {
-        if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {
-          node = child;
-        }
-      }
-    }
-    return node;
-  }
-  function d3_layout_treeRightmost(a, b) {
-    return a.x - b.x;
-  }
-  function d3_layout_treeLeftmost(a, b) {
-    return b.x - a.x;
-  }
-  function d3_layout_treeDeepest(a, b) {
-    return a.depth - b.depth;
-  }
-  function d3_layout_treeVisitAfter(node, callback) {
-    function visit(node, previousSibling) {
-      var children = node.children;
-      if (children && (n = children.length)) {
-        var child, previousChild = null, i = -1, n;
-        while (++i < n) {
-          child = children[i];
-          visit(child, previousChild);
-          previousChild = child;
-        }
-      }
-      callback(node, previousSibling);
-    }
-    visit(node, null);
-  }
-  function d3_layout_treeShift(node) {
-    var shift = 0, change = 0, children = node.children, i = children.length, child;
-    while (--i >= 0) {
-      child = children[i]._tree;
-      child.prelim += shift;
-      child.mod += shift;
-      shift += child.shift + (change += child.change);
-    }
-  }
-  function d3_layout_treeMove(ancestor, node, shift) {
-    ancestor = ancestor._tree;
-    node = node._tree;
-    var change = shift / (node.number - ancestor.number);
-    ancestor.change += change;
-    node.change -= change;
-    node.shift += shift;
-    node.prelim += shift;
-    node.mod += shift;
-  }
-  function d3_layout_treeAncestor(vim, node, ancestor) {
-    return vim._tree.ancestor.parent == node.parent ? vim._tree.ancestor : ancestor;
-  }
-  function d3_layout_treemapPadNull(node) {
-    return {
-      x: node.x,
-      y: node.y,
-      dx: node.dx,
-      dy: node.dy
-    };
-  }
-  function d3_layout_treemapPad(node, padding) {
-    var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];
-    if (dx < 0) {
-      x += dx / 2;
-      dx = 0;
-    }
-    if (dy < 0) {
-      y += dy / 2;
-      dy = 0;
-    }
-    return {
-      x: x,
-      y: y,
-      dx: dx,
-      dy: dy
-    };
-  }
-  function d3_dsv(delimiter, mimeType) {
-    function dsv(url, callback) {
-      d3.text(url, mimeType, function(text) {
-        callback(text && dsv.parse(text));
-      });
-    }
-    function formatRow(row) {
-      return row.map(formatValue).join(delimiter);
-    }
-    function formatValue(text) {
-      return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;
-    }
-    var reParse = new RegExp("\r\n|[" + delimiter + "\r\n]", "g"), reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);
-    dsv.parse = function(text) {
-      var header;
-      return dsv.parseRows(text, function(row, i) {
-        if (i) {
-          var o = {}, j = -1, m = header.length;
-          while (++j < m) o[header[j]] = row[j];
-          return o;
-        } else {
-          header = row;
-          return null;
-        }
-      });
-    };
-    dsv.parseRows = function(text, f) {
-      function token() {
-        if (reParse.lastIndex >= text.length) return EOF;
-        if (eol) {
-          eol = false;
-          return EOL;
-        }
-        var j = reParse.lastIndex;
-        if (text.charCodeAt(j) === 34) {
-          var i = j;
-          while (i++ < text.length) {
-            if (text.charCodeAt(i) === 34) {
-              if (text.charCodeAt(i + 1) !== 34) break;
-              i++;
-            }
-          }
-          reParse.lastIndex = i + 2;
-          var c = text.charCodeAt(i + 1);
-          if (c === 13) {
-            eol = true;
-            if (text.charCodeAt(i + 2) === 10) reParse.lastIndex++;
-          } else if (c === 10) {
-            eol = true;
-          }
-          return text.substring(j + 1, i).replace(/""/g, '"');
-        }
-        var m = reParse.exec(text);
-        if (m) {
-          eol = m[0].charCodeAt(0) !== delimiterCode;
-          return text.substring(j, m.index);
-        }
-        reParse.lastIndex = text.length;
-        return text.substring(j);
-      }
-      var EOL = {}, EOF = {}, rows = [], n = 0, t, eol;
-      reParse.lastIndex = 0;
-      while ((t = token()) !== EOF) {
-        var a = [];
-        while (t !== EOL && t !== EOF) {
-          a.push(t);
-          t = token();
-        }
-        if (f && !(a = f(a, n++))) continue;
-        rows.push(a);
-      }
-      return rows;
-    };
-    dsv.format = function(rows) {
-      return rows.map(formatRow).join("\n");
-    };
-    return dsv;
-  }
-  function d3_geo_type(types, defaultValue) {
-    return function(object) {
-      return object && types.hasOwnProperty(object.type) ? types[object.type](object) : defaultValue;
-    };
-  }
-  function d3_path_circle(radius) {
-    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + +2 * radius + "z";
-  }
-  function d3_geo_bounds(o, f) {
-    if (d3_geo_boundsTypes.hasOwnProperty(o.type)) d3_geo_boundsTypes[o.type](o, f);
-  }
-  function d3_geo_boundsFeature(o, f) {
-    d3_geo_bounds(o.geometry, f);
-  }
-  function d3_geo_boundsFeatureCollection(o, f) {
-    for (var a = o.features, i = 0, n = a.length; i < n; i++) {
-      d3_geo_bounds(a[i].geometry, f);
-    }
-  }
-  function d3_geo_boundsGeometryCollection(o, f) {
-    for (var a = o.geometries, i = 0, n = a.length; i < n; i++) {
-      d3_geo_bounds(a[i], f);
-    }
-  }
-  function d3_geo_boundsLineString(o, f) {
-    for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
-      f.apply(null, a[i]);
-    }
-  }
-  function d3_geo_boundsMultiLineString(o, f) {
-    for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
-      for (var b = a[i], j = 0, m = b.length; j < m; j++) {
-        f.apply(null, b[j]);
-      }
-    }
-  }
-  function d3_geo_boundsMultiPolygon(o, f) {
-    for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
-      for (var b = a[i][0], j = 0, m = b.length; j < m; j++) {
-        f.apply(null, b[j]);
-      }
-    }
-  }
-  function d3_geo_boundsPoint(o, f) {
-    f.apply(null, o.coordinates);
-  }
-  function d3_geo_boundsPolygon(o, f) {
-    for (var a = o.coordinates[0], i = 0, n = a.length; i < n; i++) {
-      f.apply(null, a[i]);
-    }
-  }
-  function d3_geo_greatArcSource(d) {
-    return d.source;
-  }
-  function d3_geo_greatArcTarget(d) {
-    return d.target;
-  }
-  function d3_geo_greatArcInterpolator() {
-    function interpolate(t) {
-      var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;
-      return [ Math.atan2(y, x) / d3_geo_radians, Math.atan2(z, Math.sqrt(x * x + y * y)) / d3_geo_radians ];
-    }
-    var x0, y0, cy0, sy0, kx0, ky0, x1, y1, cy1, sy1, kx1, ky1, d, k;
-    interpolate.distance = function() {
-      if (d == null) k = 1 / Math.sin(d = Math.acos(Math.max(-1, Math.min(1, sy0 * sy1 + cy0 * cy1 * Math.cos(x1 - x0)))));
-      return d;
-    };
-    interpolate.source = function(_) {
-      var cx0 = Math.cos(x0 = _[0] * d3_geo_radians), sx0 = Math.sin(x0);
-      cy0 = Math.cos(y0 = _[1] * d3_geo_radians);
-      sy0 = Math.sin(y0);
-      kx0 = cy0 * cx0;
-      ky0 = cy0 * sx0;
-      d = null;
-      return interpolate;
-    };
-    interpolate.target = function(_) {
-      var cx1 = Math.cos(x1 = _[0] * d3_geo_radians), sx1 = Math.sin(x1);
-      cy1 = Math.cos(y1 = _[1] * d3_geo_radians);
-      sy1 = Math.sin(y1);
-      kx1 = cy1 * cx1;
-      ky1 = cy1 * sx1;
-      d = null;
-      return interpolate;
-    };
-    return interpolate;
-  }
-  function d3_geo_greatArcInterpolate(a, b) {
-    var i = d3_geo_greatArcInterpolator().source(a).target(b);
-    i.distance();
-    return i;
-  }
-  function d3_geom_contourStart(grid) {
-    var x = 0, y = 0;
-    while (true) {
-      if (grid(x, y)) {
-        return [ x, y ];
-      }
-      if (x === 0) {
-        x = y + 1;
-        y = 0;
-      } else {
-        x = x - 1;
-        y = y + 1;
-      }
-    }
-  }
-  function d3_geom_hullCCW(i1, i2, i3, v) {
-    var t, a, b, c, d, e, f;
-    t = v[i1];
-    a = t[0];
-    b = t[1];
-    t = v[i2];
-    c = t[0];
-    d = t[1];
-    t = v[i3];
-    e = t[0];
-    f = t[1];
-    return (f - b) * (c - a) - (d - b) * (e - a) > 0;
-  }
-  function d3_geom_polygonInside(p, a, b) {
-    return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
-  }
-  function d3_geom_polygonIntersect(c, d, a, b) {
-    var x1 = c[0], x2 = d[0], x3 = a[0], x4 = b[0], y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1], x13 = x1 - x3, x21 = x2 - x1, x43 = x4 - x3, y13 = y1 - y3, y21 = y2 - y1, y43 = y4 - y3, ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21);
-    return [ x1 + ua * x21, y1 + ua * y21 ];
-  }
-  function d3_voronoi_tessellate(vertices, callback) {
-    var Sites = {
-      list: vertices.map(function(v, i) {
-        return {
-          index: i,
-          x: v[0],
-          y: v[1]
-        };
-      }).sort(function(a, b) {
-        return a.y < b.y ? -1 : a.y > b.y ? 1 : a.x < b.x ? -1 : a.x > b.x ? 1 : 0;
-      }),
-      bottomSite: null
-    };
-    var EdgeList = {
-      list: [],
-      leftEnd: null,
-      rightEnd: null,
-      init: function() {
-        EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l");
-        EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l");
-        EdgeList.leftEnd.r = EdgeList.rightEnd;
-        EdgeList.rightEnd.l = EdgeList.leftEnd;
-        EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd);
-      },
-      createHalfEdge: function(edge, side) {
-        return {
-          edge: edge,
-          side: side,
-          vertex: null,
-          l: null,
-          r: null
-        };
-      },
-      insert: function(lb, he) {
-        he.l = lb;
-        he.r = lb.r;
-        lb.r.l = he;
-        lb.r = he;
-      },
-      leftBound: function(p) {
-        var he = EdgeList.leftEnd;
-        do {
-          he = he.r;
-        } while (he != EdgeList.rightEnd && Geom.rightOf(he, p));
-        he = he.l;
-        return he;
-      },
-      del: function(he) {
-        he.l.r = he.r;
-        he.r.l = he.l;
-        he.edge = null;
-      },
-      right: function(he) {
-        return he.r;
-      },
-      left: function(he) {
-        return he.l;
-      },
-      leftRegion: function(he) {
-        return he.edge == null ? Sites.bottomSite : he.edge.region[he.side];
-      },
-      rightRegion: function(he) {
-        return he.edge == null ? Sites.bottomSite : he.edge.region[d3_voronoi_opposite[he.side]];
-      }
-    };
-    var Geom = {
-      bisect: function(s1, s2) {
-        var newEdge = {
-          region: {
-            l: s1,
-            r: s2
-          },
-          ep: {
-            l: null,
-            r: null
-          }
-        };
-        var dx = s2.x - s1.x, dy = s2.y - s1.y, adx = dx > 0 ? dx : -dx, ady = dy > 0 ? dy : -dy;
-        newEdge.c = s1.x * dx + s1.y * dy + (dx * dx + dy * dy) * .5;
-        if (adx > ady) {
-          newEdge.a = 1;
-          newEdge.b = dy / dx;
-          newEdge.c /= dx;
-        } else {
-          newEdge.b = 1;
-          newEdge.a = dx / dy;
-          newEdge.c /= dy;
-        }
-        return newEdge;
-      },
-      intersect: function(el1, el2) {
-        var e1 = el1.edge, e2 = el2.edge;
-        if (!e1 || !e2 || e1.region.r == e2.region.r) {
-          return null;
-        }
-        var d = e1.a * e2.b - e1.b * e2.a;
-        if (Math.abs(d) < 1e-10) {
-          return null;
-        }
-        var xint = (e1.c * e2.b - e2.c * e1.b) / d, yint = (e2.c * e1.a - e1.c * e2.a) / d, e1r = e1.region.r, e2r = e2.region.r, el, e;
-        if (e1r.y < e2r.y || e1r.y == e2r.y && e1r.x < e2r.x) {
-          el = el1;
-          e = e1;
-        } else {
-          el = el2;
-          e = e2;
-        }
-        var rightOfSite = xint >= e.region.r.x;
-        if (rightOfSite && el.side === "l" || !rightOfSite && el.side === "r") {
-          return null;
-        }
-        return {
-          x: xint,
-          y: yint
-        };
-      },
-      rightOf: function(he, p) {
-        var e = he.edge, topsite = e.region.r, rightOfSite = p.x > topsite.x;
-        if (rightOfSite && he.side === "l") {
-          return 1;
-        }
-        if (!rightOfSite && he.side === "r") {
-          return 0;
-        }
-        if (e.a === 1) {
-          var dyp = p.y - topsite.y, dxp = p.x - topsite.x, fast = 0, above = 0;
-          if (!rightOfSite && e.b < 0 || rightOfSite && e.b >= 0) {
-            above = fast = dyp >= e.b * dxp;
-          } else {
-            above = p.x + p.y * e.b > e.c;
-            if (e.b < 0) {
-              above = !above;
-            }
-            if (!above) {
-              fast = 1;
-            }
-          }
-          if (!fast) {
-            var dxs = topsite.x - e.region.l.x;
-            above = e.b * (dxp * dxp - dyp * dyp) < dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b);
-            if (e.b < 0) {
-              above = !above;
-            }
-          }
-        } else {
-          var yl = e.c - e.a * p.x, t1 = p.y - yl, t2 = p.x - topsite.x, t3 = yl - topsite.y;
-          above = t1 * t1 > t2 * t2 + t3 * t3;
-        }
-        return he.side === "l" ? above : !above;
-      },
-      endPoint: function(edge, side, site) {
-        edge.ep[side] = site;
-        if (!edge.ep[d3_voronoi_opposite[side]]) return;
-        callback(edge);
-      },
-      distance: function(s, t) {
-        var dx = s.x - t.x, dy = s.y - t.y;
-        return Math.sqrt(dx * dx + dy * dy);
-      }
-    };
-    var EventQueue = {
-      list: [],
-      insert: function(he, site, offset) {
-        he.vertex = site;
-        he.ystar = site.y + offset;
-        for (var i = 0, list = EventQueue.list, l = list.length; i < l; i++) {
-          var next = list[i];
-          if (he.ystar > next.ystar || he.ystar == next.ystar && site.x > next.vertex.x) {
-            continue;
-          } else {
-            break;
-          }
-        }
-        list.splice(i, 0, he);
-      },
-      del: function(he) {
-        for (var i = 0, ls = EventQueue.list, l = ls.length; i < l && ls[i] != he; ++i) {}
-        ls.splice(i, 1);
-      },
-      empty: function() {
-        return EventQueue.list.length === 0;
-      },
-      nextEvent: function(he) {
-        for (var i = 0, ls = EventQueue.list, l = ls.length; i < l; ++i) {
-          if (ls[i] == he) return ls[i + 1];
-        }
-        return null;
-      },
-      min: function() {
-        var elem = EventQueue.list[0];
-        return {
-          x: elem.vertex.x,
-          y: elem.ystar
-        };
-      },
-      extractMin: function() {
-        return EventQueue.list.shift();
-      }
-    };
-    EdgeList.init();
-    Sites.bottomSite = Sites.list.shift();
-    var newSite = Sites.list.shift(), newIntStar;
-    var lbnd, rbnd, llbnd, rrbnd, bisector;
-    var bot, top, temp, p, v;
-    var e, pm;
-    while (true) {
-      if (!EventQueue.empty()) {
-        newIntStar = EventQueue.min();
-      }
-      if (newSite && (EventQueue.empty() || newSite.y < newIntStar.y || newSite.y == newIntStar.y && newSite.x < newIntStar.x)) {
-        lbnd = EdgeList.leftBound(newSite);
-        rbnd = EdgeList.right(lbnd);
-        bot = EdgeList.rightRegion(lbnd);
-        e = Geom.bisect(bot, newSite);
-        bisector = EdgeList.createHalfEdge(e, "l");
-        EdgeList.insert(lbnd, bisector);
-        p = Geom.intersect(lbnd, bisector);
-        if (p) {
-          EventQueue.del(lbnd);
-          EventQueue.insert(lbnd, p, Geom.distance(p, newSite));
-        }
-        lbnd = bisector;
-        bisector = EdgeList.createHalfEdge(e, "r");
-        EdgeList.insert(lbnd, bisector);
-        p = Geom.intersect(bisector, rbnd);
-        if (p) {
-          EventQueue.insert(bisector, p, Geom.distance(p, newSite));
-        }
-        newSite = Sites.list.shift();
-      } else if (!EventQueue.empty()) {
-        lbnd = EventQueue.extractMin();
-        llbnd = EdgeList.left(lbnd);
-        rbnd = EdgeList.right(lbnd);
-        rrbnd = EdgeList.right(rbnd);
-        bot = EdgeList.leftRegion(lbnd);
-        top = EdgeList.rightRegion(rbnd);
-        v = lbnd.vertex;
-        Geom.endPoint(lbnd.edge, lbnd.side, v);
-        Geom.endPoint(rbnd.edge, rbnd.side, v);
-        EdgeList.del(lbnd);
-        EventQueue.del(rbnd);
-        EdgeList.del(rbnd);
-        pm = "l";
-        if (bot.y > top.y) {
-          temp = bot;
-          bot = top;
-          top = temp;
-          pm = "r";
-        }
-        e = Geom.bisect(bot, top);
-        bisector = EdgeList.createHalfEdge(e, pm);
-        EdgeList.insert(llbnd, bisector);
-        Geom.endPoint(e, d3_voronoi_opposite[pm], v);
-        p = Geom.intersect(llbnd, bisector);
-        if (p) {
-          EventQueue.del(llbnd);
-          EventQueue.insert(llbnd, p, Geom.distance(p, bot));
-        }
-        p = Geom.intersect(bisector, rrbnd);
-        if (p) {
-          EventQueue.insert(bisector, p, Geom.distance(p, bot));
-        }
-      } else {
-        break;
-      }
-    }
-    for (lbnd = EdgeList.right(EdgeList.leftEnd); lbnd != EdgeList.rightEnd; lbnd = EdgeList.right(lbnd)) {
-      callback(lbnd.edge);
-    }
-  }
-  function d3_geom_quadtreeNode() {
-    return {
-      leaf: true,
-      nodes: [],
-      point: null
-    };
-  }
-  function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
-    if (!f(node, x1, y1, x2, y2)) {
-      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;
-      if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
-      if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
-      if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
-      if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
-    }
-  }
-  function d3_geom_quadtreePoint(p) {
-    return {
-      x: p[0],
-      y: p[1]
-    };
-  }
-  function d3_time_utc() {
-    this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);
-  }
-  function d3_time_formatAbbreviate(name) {
-    return name.substring(0, 3);
-  }
-  function d3_time_parse(date, template, string, j) {
-    var c, p, i = 0, n = template.length, m = string.length;
-    while (i < n) {
-      if (j >= m) return -1;
-      c = template.charCodeAt(i++);
-      if (c == 37) {
-        p = d3_time_parsers[template.charAt(i++)];
-        if (!p || (j = p(date, string, j)) < 0) return -1;
-      } else if (c != string.charCodeAt(j++)) {
-        return -1;
-      }
-    }
-    return j;
-  }
-  function d3_time_formatRe(names) {
-    return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i");
-  }
-  function d3_time_formatLookup(names) {
-    var map = new d3_Map, i = -1, n = names.length;
-    while (++i < n) map.set(names[i].toLowerCase(), i);
-    return map;
-  }
-  function d3_time_parseWeekdayAbbrev(date, string, i) {
-    d3_time_dayAbbrevRe.lastIndex = 0;
-    var n = d3_time_dayAbbrevRe.exec(string.substring(i));
-    return n ? i += n[0].length : -1;
-  }
-  function d3_time_parseWeekday(date, string, i) {
-    d3_time_dayRe.lastIndex = 0;
-    var n = d3_time_dayRe.exec(string.substring(i));
-    return n ? i += n[0].length : -1;
-  }
-  function d3_time_parseMonthAbbrev(date, string, i) {
-    d3_time_monthAbbrevRe.lastIndex = 0;
-    var n = d3_time_monthAbbrevRe.exec(string.substring(i));
-    return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i += n[0].length) : -1;
-  }
-  function d3_time_parseMonth(date, string, i) {
-    d3_time_monthRe.lastIndex = 0;
-    var n = d3_time_monthRe.exec(string.substring(i));
-    return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i += n[0].length) : -1;
-  }
-  function d3_time_parseLocaleFull(date, string, i) {
-    return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
-  }
-  function d3_time_parseLocaleDate(date, string, i) {
-    return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
-  }
-  function d3_time_parseLocaleTime(date, string, i) {
-    return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
-  }
-  function d3_time_parseFullYear(date, string, i) {
-    d3_time_numberRe.lastIndex = 0;
-    var n = d3_time_numberRe.exec(string.substring(i, i + 4));
-    return n ? (date.y = +n[0], i += n[0].length) : -1;
-  }
-  function d3_time_parseYear(date, string, i) {
-    d3_time_numberRe.lastIndex = 0;
-    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-    return n ? (date.y = d3_time_expandYear(+n[0]), i += n[0].length) : -1;
-  }
-  function d3_time_expandYear(d) {
-    return d + (d > 68 ? 1900 : 2e3);
-  }
-  function d3_time_parseMonthNumber(date, string, i) {
-    d3_time_numberRe.lastIndex = 0;
-    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-    return n ? (date.m = n[0] - 1, i += n[0].length) : -1;
-  }
-  function d3_time_parseDay(date, string, i) {
-    d3_time_numberRe.lastIndex = 0;
-    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-    return n ? (date.d = +n[0], i += n[0].length) : -1;
-  }
-  function d3_time_parseHour24(date, string, i) {
-    d3_time_numberRe.lastIndex = 0;
-    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-    return n ? (date.H = +n[0], i += n[0].length) : -1;
-  }
-  function d3_time_parseMinutes(date, string, i) {
-    d3_time_numberRe.lastIndex = 0;
-    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-    return n ? (date.M = +n[0], i += n[0].length) : -1;
-  }
-  function d3_time_parseSeconds(date, string, i) {
-    d3_time_numberRe.lastIndex = 0;
-    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
-    return n ? (date.S = +n[0], i += n[0].length) : -1;
-  }
-  function d3_time_parseMilliseconds(date, string, i) {
-    d3_time_numberRe.lastIndex = 0;
-    var n = d3_time_numberRe.exec(string.substring(i, i + 3));
-    return n ? (date.L = +n[0], i += n[0].length) : -1;
-  }
-  function d3_time_parseAmPm(date, string, i) {
-    var n = d3_time_amPmLookup.get(string.substring(i, i += 2).toLowerCase());
-    return n == null ? -1 : (date.p = n, i);
-  }
-  function d3_time_zone(d) {
-    var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = ~~(Math.abs(z) / 60), zm = Math.abs(z) % 60;
-    return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm);
-  }
-  function d3_time_formatIsoNative(date) {
-    return date.toISOString();
-  }
-  function d3_time_interval(local, step, number) {
-    function round(date) {
-      var d0 = local(date), d1 = offset(d0, 1);
-      return date - d0 < d1 - date ? d0 : d1;
-    }
-    function ceil(date) {
-      step(date = local(new d3_time(date - 1)), 1);
-      return date;
-    }
-    function offset(date, k) {
-      step(date = new d3_time(+date), k);
-      return date;
-    }
-    function range(t0, t1, dt) {
-      var time = ceil(t0), times = [];
-      if (dt > 1) {
-        while (time < t1) {
-          if (!(number(time) % dt)) times.push(new Date(+time));
-          step(time, 1);
-        }
-      } else {
-        while (time < t1) times.push(new Date(+time)), step(time, 1);
-      }
-      return times;
-    }
-    function range_utc(t0, t1, dt) {
-      try {
-        d3_time = d3_time_utc;
-        var utc = new d3_time_utc;
-        utc._ = t0;
-        return range(utc, t1, dt);
-      } finally {
-        d3_time = Date;
-      }
-    }
-    local.floor = local;
-    local.round = round;
-    local.ceil = ceil;
-    local.offset = offset;
-    local.range = range;
-    var utc = local.utc = d3_time_interval_utc(local);
-    utc.floor = utc;
-    utc.round = d3_time_interval_utc(round);
-    utc.ceil = d3_time_interval_utc(ceil);
-    utc.offset = d3_time_interval_utc(offset);
-    utc.range = range_utc;
-    return local;
-  }
-  function d3_time_interval_utc(method) {
-    return function(date, k) {
-      try {
-        d3_time = d3_time_utc;
-        var utc = new d3_time_utc;
-        utc._ = date;
-        return method(utc, k)._;
-      } finally {
-        d3_time = Date;
-      }
-    };
-  }
-  function d3_time_scale(linear, methods, format) {
-    function scale(x) {
-      return linear(x);
-    }
-    scale.invert = function(x) {
-      return d3_time_scaleDate(linear.invert(x));
-    };
-    scale.domain = function(x) {
-      if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
-      linear.domain(x);
-      return scale;
-    };
-    scale.nice = function(m) {
-      return scale.domain(d3_scale_nice(scale.domain(), function() {
-        return m;
-      }));
-    };
-    scale.ticks = function(m, k) {
-      var extent = d3_time_scaleExtent(scale.domain());
-      if (typeof m !== "function") {
-        var span = extent[1] - extent[0], target = span / m, i = d3.bisect(d3_time_scaleSteps, target);
-        if (i == d3_time_scaleSteps.length) return methods.year(extent, m);
-        if (!i) return linear.ticks(m).map(d3_time_scaleDate);
-        if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i;
-        m = methods[i];
-        k = m[1];
-        m = m[0].range;
-      }
-      return m(extent[0], new Date(+extent[1] + 1), k);
-    };
-    scale.tickFormat = function() {
-      return format;
-    };
-    scale.copy = function() {
-      return d3_time_scale(linear.copy(), methods, format);
-    };
-    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
-  }
-  function d3_time_scaleExtent(domain) {
-    var start = domain[0], stop = domain[domain.length - 1];
-    return start < stop ? [ start, stop ] : [ stop, start ];
-  }
-  function d3_time_scaleDate(t) {
-    return new Date(t);
-  }
-  function d3_time_scaleFormat(formats) {
-    return function(date) {
-      var i = formats.length - 1, f = formats[i];
-      while (!f[1](date)) f = formats[--i];
-      return f[0](date);
-    };
-  }
-  function d3_time_scaleSetYear(y) {
-    var d = new Date(y, 0, 1);
-    d.setFullYear(y);
-    return d;
-  }
-  function d3_time_scaleGetYear(d) {
-    var y = d.getFullYear(), d0 = d3_time_scaleSetYear(y), d1 = d3_time_scaleSetYear(y + 1);
-    return y + (d - d0) / (d1 - d0);
-  }
-  function d3_time_scaleUTCSetYear(y) {
-    var d = new Date(Date.UTC(y, 0, 1));
-    d.setUTCFullYear(y);
-    return d;
-  }
-  function d3_time_scaleUTCGetYear(d) {
-    var y = d.getUTCFullYear(), d0 = d3_time_scaleUTCSetYear(y), d1 = d3_time_scaleUTCSetYear(y + 1);
-    return y + (d - d0) / (d1 - d0);
-  }
-  if (!Date.now) Date.now = function() {
-    return +(new Date);
-  };
-  try {
-    document.createElement("div").style.setProperty("opacity", 0, "");
-  } catch (error) {
-    var d3_style_prototype = CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;
-    d3_style_prototype.setProperty = function(name, value, priority) {
-      d3_style_setProperty.call(this, name, value + "", priority);
-    };
-  }
-  d3 = {
-    version: "2.10.3"
-  };
-  var d3_array = d3_arraySlice;
-  try {
-    d3_array(document.documentElement.childNodes)[0].nodeType;
-  } catch (e) {
-    d3_array = d3_arrayCopy;
-  }
-  var d3_arraySubclass = [].__proto__ ? function(array, prototype) {
-    array.__proto__ = prototype;
-  } : function(array, prototype) {
-    for (var property in prototype) array[property] = prototype[property];
-  };
-  d3.map = function(object) {
-    var map = new d3_Map;
-    for (var key in object) map.set(key, object[key]);
-    return map;
-  };
-  d3_class(d3_Map, {
-    has: function(key) {
-      return d3_map_prefix + key in this;
-    },
-    get: function(key) {
-      return this[d3_map_prefix + key];
-    },
-    set: function(key, value) {
-      return this[d3_map_prefix + key] = value;
-    },
-    remove: function(key) {
-      key = d3_map_prefix + key;
-      return key in this && delete this[key];
-    },
-    keys: function() {
-      var keys = [];
-      this.forEach(function(key) {
-        keys.push(key);
-      });
-      return keys;
-    },
-    values: function() {
-      var values = [];
-      this.forEach(function(key, value) {
-        values.push(value);
-      });
-      return values;
-    },
-    entries: function() {
-      var entries = [];
-      this.forEach(function(key, value) {
-        entries.push({
-          key: key,
-          value: value
-        });
-      });
-      return entries;
-    },
-    forEach: function(f) {
-      for (var key in this) {
-        if (key.charCodeAt(0) === d3_map_prefixCode) {
-          f.call(this, key.substring(1), this[key]);
-        }
-      }
-    }
-  });
-  var d3_map_prefix = "\0", d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
-  d3.functor = d3_functor;
-  d3.rebind = function(target, source) {
-    var i = 1, n = arguments.length, method;
-    while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
-    return target;
-  };
-  d3.ascending = function(a, b) {
-    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
-  };
-  d3.descending = function(a, b) {
-    return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
-  };
-  d3.mean = function(array, f) {
-    var n = array.length, a, m = 0, i = -1, j = 0;
-    if (arguments.length === 1) {
-      while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
-    } else {
-      while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
-    }
-    return j ? m : undefined;
-  };
-  d3.median = function(array, f) {
-    if (arguments.length > 1) array = array.map(f);
-    array = array.filter(d3_number);
-    return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;
-  };
-  d3.min = function(array, f) {
-    var i = -1, n = array.length, a, b;
-    if (arguments.length === 1) {
-      while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
-      while (++i < n) if ((b = array[i]) != null && a > b) a = b;
-    } else {
-      while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
-      while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
-    }
-    return a;
-  };
-  d3.max = function(array, f) {
-    var i = -1, n = array.length, a, b;
-    if (arguments.length === 1) {
-      while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
-      while (++i < n) if ((b = array[i]) != null && b > a) a = b;
-    } else {
-      while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
-      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
-    }
-    return a;
-  };
-  d3.extent = function(array, f) {
-    var i = -1, n = array.length, a, b, c;
-    if (arguments.length === 1) {
-      while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined;
-      while (++i < n) if ((b = array[i]) != null) {
-        if (a > b) a = b;
-        if (c < b) c = b;
-      }
-    } else {
-      while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined;
-      while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
-        if (a > b) a = b;
-        if (c < b) c = b;
-      }
-    }
-    return [ a, c ];
-  };
-  d3.random = {
-    normal: function(µ, σ) {
-      var n = arguments.length;
-      if (n < 2) σ = 1;
-      if (n < 1) µ = 0;
-      return function() {
-        var x, y, r;
-        do {
-          x = Math.random() * 2 - 1;
-          y = Math.random() * 2 - 1;
-          r = x * x + y * y;
-        } while (!r || r > 1);
-        return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);
-      };
-    },
-    logNormal: function(µ, σ) {
-      var n = arguments.length;
-      if (n < 2) σ = 1;
-      if (n < 1) µ = 0;
-      var random = d3.random.normal();
-      return function() {
-        return Math.exp(µ + σ * random());
-      };
-    },
-    irwinHall: function(m) {
-      return function() {
-        for (var s = 0, j = 0; j < m; j++) s += Math.random();
-        return s / m;
-      };
-    }
-  };
-  d3.sum = function(array, f) {
-    var s = 0, n = array.length, a, i = -1;
-    if (arguments.length === 1) {
-      while (++i < n) if (!isNaN(a = +array[i])) s += a;
-    } else {
-      while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
-    }
-    return s;
-  };
-  d3.quantile = function(values, p) {
-    var H = (values.length - 1) * p + 1, h = Math.floor(H), v = values[h - 1], e = H - h;
-    return e ? v + e * (values[h] - v) : v;
-  };
-  d3.transpose = function(matrix) {
-    return d3.zip.apply(d3, matrix);
-  };
-  d3.zip = function() {
-    if (!(n = arguments.length)) return [];
-    for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m; ) {
-      for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n; ) {
-        zip[j] = arguments[j][i];
-      }
-    }
-    return zips;
-  };
-  d3.bisector = function(f) {
-    return {
-      left: function(a, x, lo, hi) {
-        if (arguments.length < 3) lo = 0;
-        if (arguments.length < 4) hi = a.length;
-        while (lo < hi) {
-          var mid = lo + hi >>> 1;
-          if (f.call(a, a[mid], mid) < x) lo = mid + 1; else hi = mid;
-        }
-        return lo;
-      },
-      right: function(a, x, lo, hi) {
-        if (arguments.length < 3) lo = 0;
-        if (arguments.length < 4) hi = a.length;
-        while (lo < hi) {
-          var mid = lo + hi >>> 1;
-          if (x < f.call(a, a[mid], mid)) hi = mid; else lo = mid + 1;
-        }
-        return lo;
-      }
-    };
-  };
-  var d3_bisector = d3.bisector(function(d) {
-    return d;
-  });
-  d3.bisectLeft = d3_bisector.left;
-  d3.bisect = d3.bisectRight = d3_bisector.right;
-  d3.first = function(array, f) {
-    var i = 0, n = array.length, a = array[0], b;
-    if (arguments.length === 1) f = d3.ascending;
-    while (++i < n) {
-      if (f.call(array, a, b = array[i]) > 0) {
-        a = b;
-      }
-    }
-    return a;
-  };
-  d3.last = function(array, f) {
-    var i = 0, n = array.length, a = array[0], b;
-    if (arguments.length === 1) f = d3.ascending;
-    while (++i < n) {
-      if (f.call(array, a, b = array[i]) <= 0) {
-        a = b;
-      }
-    }
-    return a;
-  };
-  d3.nest = function() {
-    function map(array, depth) {
-      if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;
-      var i = -1, n = array.length, key = keys[depth++], keyValue, object, valuesByKey = new d3_Map, values, o = {};
-      while (++i < n) {
-        if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
-          values.push(object);
-        } else {
-          valuesByKey.set(keyValue, [ object ]);
-        }
-      }
-      valuesByKey.forEach(function(keyValue, values) {
-        o[keyValue] = map(values, depth);
-      });
-      return o;
-    }
-    function entries(map, depth) {
-      if (depth >= keys.length) return map;
-      var a = [], sortKey = sortKeys[depth++], key;
-      for (key in map) {
-        a.push({
-          key: key,
-          values: entries(map[key], depth)
-        });
-      }
-      if (sortKey) a.sort(function(a, b) {
-        return sortKey(a.key, b.key);
-      });
-      return a;
-    }
-    var nest = {}, keys = [], sortKeys = [], sortValues, rollup;
-    nest.map = function(array) {
-      return map(array, 0);
-    };
-    nest.entries = function(array) {
-      return entries(map(array, 0), 0);
-    };
-    nest.key = function(d) {
-      keys.push(d);
-      return nest;
-    };
-    nest.sortKeys = function(order) {
-      sortKeys[keys.length - 1] = order;
-      return nest;
-    };
-    nest.sortValues = function(order) {
-      sortValues = order;
-      return nest;
-    };
-    nest.rollup = function(f) {
-      rollup = f;
-      return nest;
-    };
-    return nest;
-  };
-  d3.keys = function(map) {
-    var keys = [];
-    for (var key in map) keys.push(key);
-    return keys;
-  };
-  d3.values = function(map) {
-    var values = [];
-    for (var key in map) values.push(map[key]);
-    return values;
-  };
-  d3.entries = function(map) {
-    var entries = [];
-    for (var key in map) entries.push({
-      key: key,
-      value: map[key]
-    });
-    return entries;
-  };
-  d3.permute = function(array, indexes) {
-    var permutes = [], i = -1, n = indexes.length;
-    while (++i < n) permutes[i] = array[indexes[i]];
-    return permutes;
-  };
-  d3.merge = function(arrays) {
-    return Array.prototype.concat.apply([], arrays);
-  };
-  d3.split = function(array, f) {
-    var arrays = [], values = [], value, i = -1, n = array.length;
-    if (arguments.length < 2) f = d3_splitter;
-    while (++i < n) {
-      if (f.call(values, value = array[i], i)) {
-        values = [];
-      } else {
-        if (!values.length) arrays.push(values);
-        values.push(value);
-      }
-    }
-    return arrays;
-  };
-  d3.range = function(start, stop, step) {
-    if (arguments.length < 3) {
-      step = 1;
-      if (arguments.length < 2) {
-        stop = start;
-        start = 0;
-      }
-    }
-    if ((stop - start) / step === Infinity) throw new Error("infinite range");
-    var range = [], k = d3_range_integerScale(Math.abs(step)), i = -1, j;
-    start *= k, stop *= k, step *= k;
-    if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);
-    return range;
-  };
-  d3.requote = function(s) {
-    return s.replace(d3_requote_re, "\\$&");
-  };
-  var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
-  d3.round = function(x, n) {
-    return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);
-  };
-  d3.xhr = function(url, mime, callback) {
-    var req = new XMLHttpRequest;
-    if (arguments.length < 3) callback = mime, mime = null; else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
-    req.open("GET", url, true);
-    if (mime) req.setRequestHeader("Accept", mime);
-    req.onreadystatechange = function() {
-      if (req.readyState === 4) {
-        var s = req.status;
-        callback(!s && req.response || s >= 200 && s < 300 || s === 304 ? req : null);
-      }
-    };
-    req.send(null);
-  };
-  d3.text = function(url, mime, callback) {
-    function ready(req) {
-      callback(req && req.responseText);
-    }
-    if (arguments.length < 3) {
-      callback = mime;
-      mime = null;
-    }
-    d3.xhr(url, mime, ready);
-  };
-  d3.json = function(url, callback) {
-    d3.text(url, "application/json", function(text) {
-      callback(text ? JSON.parse(text) : null);
-    });
-  };
-  d3.html = function(url, callback) {
-    d3.text(url, "text/html", function(text) {
-      if (text != null) {
-        var range = document.createRange();
-        range.selectNode(document.body);
-        text = range.createContextualFragment(text);
-      }
-      callback(text);
-    });
-  };
-  d3.xml = function(url, mime, callback) {
-    function ready(req) {
-      callback(req && req.responseXML);
-    }
-    if (arguments.length < 3) {
-      callback = mime;
-      mime = null;
-    }
-    d3.xhr(url, mime, ready);
-  };
-  var d3_nsPrefix = {
-    svg: "http://www.w3.org/2000/svg",
-    xhtml: "http://www.w3.org/1999/xhtml",
-    xlink: "http://www.w3.org/1999/xlink",
-    xml: "http://www.w3.org/XML/1998/namespace",
-    xmlns: "http://www.w3.org/2000/xmlns/"
-  };
-  d3.ns = {
-    prefix: d3_nsPrefix,
-    qualify: function(name) {
-      var i = name.indexOf(":"), prefix = name;
-      if (i >= 0) {
-        prefix = name.substring(0, i);
-        name = name.substring(i + 1);
-      }
-      return d3_nsPrefix.hasOwnProperty(prefix) ? {
-        space: d3_nsPrefix[prefix],
-        local: name
-      } : name;
-    }
-  };
-  d3.dispatch = function() {
-    var dispatch = new d3_dispatch, i = -1, n = arguments.length;
-    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
-    return dispatch;
-  };
-  d3_dispatch.prototype.on = function(type, listener) {
-    var i = type.indexOf("."), name = "";
-    if (i > 0) {
-      name = type.substring(i + 1);
-      type = type.substring(0, i);
-    }
-    return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);
-  };
-  d3.format = function(specifier) {
-    var match = d3_format_re.exec(specifier), fill = match[1] || " ", sign = match[3] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, suffix = "", integer = false;
-    if (precision) precision = +precision.substring(1);
-    if (zfill) {
-      fill = "0";
-      if (comma) width -= Math.floor((width - 1) / 4);
-    }
-    switch (type) {
-     case "n":
-      comma = true;
-      type = "g";
-      break;
-     case "%":
-      scale = 100;
-      suffix = "%";
-      type = "f";
-      break;
-     case "p":
-      scale = 100;
-      suffix = "%";
-      type = "r";
-      break;
-     case "d":
-      integer = true;
-      precision = 0;
-      break;
-     case "s":
-      scale = -1;
-      type = "r";
-      break;
-    }
-    if (type == "r" && !precision) type = "g";
-    type = d3_format_types.get(type) || d3_format_typeDefault;
-    return function(value) {
-      if (integer && value % 1) return "";
-      var negative = value < 0 && (value = -value) ? "-" : sign;
-      if (scale < 0) {
-        var prefix = d3.formatPrefix(value, precision);
-        value = prefix.scale(value);
-        suffix = prefix.symbol;
-      } else {
-        value *= scale;
-      }
-      value = type(value, precision);
-      if (zfill) {
-        var length = value.length + negative.length;
-        if (length < width) value = (new Array(width - length + 1)).join(fill) + value;
-        if (comma) value = d3_format_group(value);
-        value = negative + value;
-      } else {
-        if (comma) value = d3_format_group(value);
-        value = negative + value;
-        var length = value.length;
-        if (length < width) value = (new Array(width - length + 1)).join(fill) + value;
-      }
-      return value + suffix;
-    };
-  };
-  var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
-  var d3_format_types = d3.map({
-    g: function(x, p) {
-      return x.toPrecision(p);
-    },
-    e: function(x, p) {
-      return x.toExponential(p);
-    },
-    f: function(x, p) {
-      return x.toFixed(p);
-    },
-    r: function(x, p) {
-      return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p)));
-    }
-  });
-  var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "μ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix);
-  d3.formatPrefix = function(value, precision) {
-    var i = 0;
-    if (value) {
-      if (value < 0) value *= -1;
-      if (precision) value = d3.round(value, d3_format_precision(value, precision));
-      i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
-      i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3));
-    }
-    return d3_formatPrefixes[8 + i / 3];
-  };
-  var d3_ease_quad = d3_ease_poly(2), d3_ease_cubic = d3_ease_poly(3), d3_ease_default = function() {
-    return d3_ease_identity;
-  };
-  var d3_ease = d3.map({
-    linear: d3_ease_default,
-    poly: d3_ease_poly,
-    quad: function() {
-      return d3_ease_quad;
-    },
-    cubic: function() {
-      return d3_ease_cubic;
-    },
-    sin: function() {
-      return d3_ease_sin;
-    },
-    exp: function() {
-      return d3_ease_exp;
-    },
-    circle: function() {
-      return d3_ease_circle;
-    },
-    elastic: d3_ease_elastic,
-    back: d3_ease_back,
-    bounce: function() {
-      return d3_ease_bounce;
-    }
-  });
-  var d3_ease_mode = d3.map({
-    "in": d3_ease_identity,
-    out: d3_ease_reverse,
-    "in-out": d3_ease_reflect,
-    "out-in": function(f) {
-      return d3_ease_reflect(d3_ease_reverse(f));
-    }
-  });
-  d3.ease = function(name) {
-    var i = name.indexOf("-"), t = i >= 0 ? name.substring(0, i) : name, m = i >= 0 ? name.substring(i + 1) : "in";
-    t = d3_ease.get(t) || d3_ease_default;
-    m = d3_ease_mode.get(m) || d3_ease_identity;
-    return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1))));
-  };
-  d3.event = null;
-  d3.transform = function(string) {
-    var g = document.createElementNS(d3.ns.prefix.svg, "g");
-    return (d3.transform = function(string) {
-      g.setAttribute("transform", string);
-      var t = g.transform.baseVal.consolidate();
-      return new d3_transform(t ? t.matrix : d3_transformIdentity);
-    })(string);
-  };
-  d3_transform.prototype.toString = function() {
-    return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";
-  };
-  var d3_transformDegrees = 180 / Math.PI, d3_transformIdentity = {
-    a: 1,
-    b: 0,
-    c: 0,
-    d: 1,
-    e: 0,
-    f: 0
-  };
-  d3.interpolate = function(a, b) {
-    var i = d3.interpolators.length, f;
-    while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;
-    return f;
-  };
-  d3.interpolateNumber = function(a, b) {
-    b -= a;
-    return function(t) {
-      return a + b * t;
-    };
-  };
-  d3.interpolateRound = function(a, b) {
-    b -= a;
-    return function(t) {
-      return Math.round(a + b * t);
-    };
-  };
-  d3.interpolateString = function(a, b) {
-    var m, i, j, s0 = 0, s1 = 0, s = [], q = [], n, o;
-    d3_interpolate_number.lastIndex = 0;
-    for (i = 0; m = d3_interpolate_number.exec(b); ++i) {
-      if (m.index) s.push(b.substring(s0, s1 = m.index));
-      q.push({
-        i: s.length,
-        x: m[0]
-      });
-      s.push(null);
-      s0 = d3_interpolate_number.lastIndex;
-    }
-    if (s0 < b.length) s.push(b.substring(s0));
-    for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) {
-      o = q[i];
-      if (o.x == m[0]) {
-        if (o.i) {
-          if (s[o.i + 1] == null) {
-            s[o.i - 1] += o.x;
-            s.splice(o.i, 1);
-            for (j = i + 1; j < n; ++j) q[j].i--;
-          } else {
-            s[o.i - 1] += o.x + s[o.i + 1];
-            s.splice(o.i, 2);
-            for (j = i + 1; j < n; ++j) q[j].i -= 2;
-          }
-        } else {
-          if (s[o.i + 1] == null) {
-            s[o.i] = o.x;
-          } else {
-            s[o.i] = o.x + s[o.i + 1];
-            s.splice(o.i + 1, 1);
-            for (j = i + 1; j < n; ++j) q[j].i--;
-          }
-        }
-        q.splice(i, 1);
-        n--;
-        i--;
-      } else {
-        o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x));
-      }
-    }
-    while (i < n) {
-      o = q.pop();
-      if (s[o.i + 1] == null) {
-        s[o.i] = o.x;
-      } else {
-        s[o.i] = o.x + s[o.i + 1];
-        s.splice(o.i + 1, 1);
-      }
-      n--;
-    }
-    if (s.length === 1) {
-      return s[0] == null ? q[0].x : function() {
-        return b;
-      };
-    }
-    return function(t) {
-      for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t);
-      return s.join("");
-    };
-  };
-  d3.interpolateTransform = function(a, b) {
-    var s = [], q = [], n, A = d3.transform(a), B = d3.transform(b), ta = A.translate, tb = B.translate, ra = A.rotate, rb = B.rotate, wa = A.skew, wb = B.skew, ka = A.scale, kb = B.scale;
-    if (ta[0] != tb[0] || ta[1] != tb[1]) {
-      s.push("translate(", null, ",", null, ")");
-      q.push({
-        i: 1,
-        x: d3.interpolateNumber(ta[0], tb[0])
-      }, {
-        i: 3,
-        x: d3.interpolateNumber(ta[1], tb[1])
-      });
-    } else if (tb[0] || tb[1]) {
-      s.push("translate(" + tb + ")");
-    } else {
-      s.push("");
-    }
-    if (ra != rb) {
-      if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;
-      q.push({
-        i: s.push(s.pop() + "rotate(", null, ")") - 2,
-        x: d3.interpolateNumber(ra, rb)
-      });
-    } else if (rb) {
-      s.push(s.pop() + "rotate(" + rb + ")");
-    }
-    if (wa != wb) {
-      q.push({
-        i: s.push(s.pop() + "skewX(", null, ")") - 2,
-        x: d3.interpolateNumber(wa, wb)
-      });
-    } else if (wb) {
-      s.push(s.pop() + "skewX(" + wb + ")");
-    }
-    if (ka[0] != kb[0] || ka[1] != kb[1]) {
-      n = s.push(s.pop() + "scale(", null, ",", null, ")");
-      q.push({
-        i: n - 4,
-        x: d3.interpolateNumber(ka[0], kb[0])
-      }, {
-        i: n - 2,
-        x: d3.interpolateNumber(ka[1], kb[1])
-      });
-    } else if (kb[0] != 1 || kb[1] != 1) {
-      s.push(s.pop() + "scale(" + kb + ")");
-    }
-    n = q.length;
-    return function(t) {
-      var i = -1, o;
-      while (++i < n) s[(o = q[i]).i] = o.x(t);
-      return s.join("");
-    };
-  };
-  d3.interpolateRgb = function(a, b) {
-    a = d3.rgb(a);
-    b = d3.rgb(b);
-    var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;
-    return function(t) {
-      return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));
-    };
-  };
-  d3.interpolateHsl = function(a, b) {
-    a = d3.hsl(a);
-    b = d3.hsl(b);
-    var h0 = a.h, s0 = a.s, l0 = a.l, h1 = b.h - h0, s1 = b.s - s0, l1 = b.l - l0;
-    if (h1 > 180) h1 -= 360; else if (h1 < -180) h1 += 360;
-    return function(t) {
-      return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t) + "";
-    };
-  };
-  d3.interpolateLab = function(a, b) {
-    a = d3.lab(a);
-    b = d3.lab(b);
-    var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;
-    return function(t) {
-      return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + "";
-    };
-  };
-  d3.interpolateHcl = function(a, b) {
-    a = d3.hcl(a);
-    b = d3.hcl(b);
-    var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;
-    if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
-    return function(t) {
-      return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + "";
-    };
-  };
-  d3.interpolateArray = function(a, b) {
-    var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;
-    for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i]));
-    for (; i < na; ++i) c[i] = a[i];
-    for (; i < nb; ++i) c[i] = b[i];
-    return function(t) {
-      for (i = 0; i < n0; ++i) c[i] = x[i](t);
-      return c;
-    };
-  };
-  d3.interpolateObject = function(a, b) {
-    var i = {}, c = {}, k;
-    for (k in a) {
-      if (k in b) {
-        i[k] = d3_interpolateByName(k)(a[k], b[k]);
-      } else {
-        c[k] = a[k];
-      }
-    }
-    for (k in b) {
-      if (!(k in a)) {
-        c[k] = b[k];
-      }
-    }
-    return function(t) {
-      for (k in i) c[k] = i[k](t);
-      return c;
-    };
-  };
-  var d3_interpolate_number = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g;
-  d3.interpolators = [ d3.interpolateObject, function(a, b) {
-    return b instanceof Array && d3.interpolateArray(a, b);
-  }, function(a, b) {
-    return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + "");
-  }, function(a, b) {
-    return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Color) && d3.interpolateRgb(a, b);
-  }, function(a, b) {
-    return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b);
-  } ];
-  d3_Color.prototype.toString = function() {
-    return this.rgb() + "";
-  };
-  d3.rgb = function(r, g, b) {
-    return arguments.length === 1 ? r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : d3_rgb(~~r, ~~g, ~~b);
-  };
-  var d3_rgbPrototype = d3_Rgb.prototype = new d3_Color;
-  d3_rgbPrototype.brighter = function(k) {
-    k = Math.pow(.7, arguments.length ? k : 1);
-    var r = this.r, g = this.g, b = this.b, i = 30;
-    if (!r && !g && !b) return d3_rgb(i, i, i);
-    if (r && r < i) r = i;
-    if (g && g < i) g = i;
-    if (b && b < i) b = i;
-    return d3_rgb(Math.min(255, Math.floor(r / k)), Math.min(255, Math.floor(g / k)), Math.min(255, Math.floor(b / k)));
-  };
-  d3_rgbPrototype.darker = function(k) {
-    k = Math.pow(.7, arguments.length ? k : 1);
-    return d3_rgb(Math.floor(k * this.r), Math.floor(k * this.g), Math.floor(k * this.b));
-  };
-  d3_rgbPrototype.hsl = function() {
-    return d3_rgb_hsl(this.r, this.g, this.b);
-  };
-  d3_rgbPrototype.toString = function() {
-    return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
-  };
   var d3_rgb_names = d3.map({
     aliceblue: "#f0f8ff",
     antiquewhite: "#faebd7",
@@ -3531,539 +1613,183 @@
   d3_rgb_names.forEach(function(key, value) {
     d3_rgb_names.set(key, d3_rgb_parse(value, d3_rgb, d3_hsl_rgb));
   });
-  d3.hsl = function(h, s, l) {
-    return arguments.length === 1 ? h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : d3_hsl(+h, +s, +l);
-  };
-  var d3_hslPrototype = d3_Hsl.prototype = new d3_Color;
-  d3_hslPrototype.brighter = function(k) {
-    k = Math.pow(.7, arguments.length ? k : 1);
-    return d3_hsl(this.h, this.s, this.l / k);
-  };
-  d3_hslPrototype.darker = function(k) {
-    k = Math.pow(.7, arguments.length ? k : 1);
-    return d3_hsl(this.h, this.s, k * this.l);
-  };
-  d3_hslPrototype.rgb = function() {
-    return d3_hsl_rgb(this.h, this.s, this.l);
-  };
-  d3.hcl = function(h, c, l) {
-    return arguments.length === 1 ? h instanceof d3_Hcl ? d3_hcl(h.h, h.c, h.l) : h instanceof d3_Lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : d3_hcl(+h, +c, +l);
-  };
-  var d3_hclPrototype = d3_Hcl.prototype = new d3_Color;
-  d3_hclPrototype.brighter = function(k) {
-    return d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
-  };
-  d3_hclPrototype.darker = function(k) {
-    return d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));
-  };
-  d3_hclPrototype.rgb = function() {
-    return d3_hcl_lab(this.h, this.c, this.l).rgb();
-  };
-  d3.lab = function(l, a, b) {
-    return arguments.length === 1 ? l instanceof d3_Lab ? d3_lab(l.l, l.a, l.b) : l instanceof d3_Hcl ? d3_hcl_lab(l.l, l.c, l.h) : d3_rgb_lab((l = d3.rgb(l)).r, l.g, l.b) : d3_lab(+l, +a, +b);
-  };
-  var d3_lab_K = 18;
-  var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;
-  var d3_labPrototype = d3_Lab.prototype = new d3_Color;
-  d3_labPrototype.brighter = function(k) {
-    return d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
-  };
-  d3_labPrototype.darker = function(k) {
-    return d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
-  };
-  d3_labPrototype.rgb = function() {
-    return d3_lab_rgb(this.l, this.a, this.b);
-  };
-  var d3_select = function(s, n) {
-    return n.querySelector(s);
-  }, d3_selectAll = function(s, n) {
-    return n.querySelectorAll(s);
-  }, d3_selectRoot = document.documentElement, d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector, d3_selectMatches = function(n, s) {
-    return d3_selectMatcher.call(n, s);
-  };
-  if (typeof Sizzle === "function") {
-    d3_select = function(s, n) {
-      return Sizzle(s, n)[0] || null;
+  function d3_functor(v) {
+    return typeof v === "function" ? v : function() {
+      return v;
     };
-    d3_selectAll = function(s, n) {
-      return Sizzle.uniqueSort(Sizzle(s, n));
-    };
-    d3_selectMatches = Sizzle.matchesSelector;
   }
-  var d3_selectionPrototype = [];
-  d3.selection = function() {
-    return d3_selectionRoot;
-  };
-  d3.selection.prototype = d3_selectionPrototype;
-  d3_selectionPrototype.select = function(selector) {
-    var subgroups = [], subgroup, subnode, group, node;
-    if (typeof selector !== "function") selector = d3_selection_selector(selector);
-    for (var j = -1, m = this.length; ++j < m; ) {
-      subgroups.push(subgroup = []);
-      subgroup.parentNode = (group = this[j]).parentNode;
-      for (var i = -1, n = group.length; ++i < n; ) {
-        if (node = group[i]) {
-          subgroup.push(subnode = selector.call(node, node.__data__, i));
-          if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
-        } else {
-          subgroup.push(null);
-        }
-      }
-    }
-    return d3_selection(subgroups);
-  };
-  d3_selectionPrototype.selectAll = function(selector) {
-    var subgroups = [], subgroup, node;
-    if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
-    for (var j = -1, m = this.length; ++j < m; ) {
-      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
-        if (node = group[i]) {
-          subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i)));
-          subgroup.parentNode = node;
-        }
-      }
-    }
-    return d3_selection(subgroups);
-  };
-  d3_selectionPrototype.attr = function(name, value) {
-    if (arguments.length < 2) {
-      if (typeof name === "string") {
-        var node = this.node();
-        name = d3.ns.qualify(name);
-        return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);
-      }
-      for (value in name) this.each(d3_selection_attr(value, name[value]));
-      return this;
-    }
-    return this.each(d3_selection_attr(name, value));
-  };
-  d3_selectionPrototype.classed = function(name, value) {
-    if (arguments.length < 2) {
-      if (typeof name === "string") {
-        var node = this.node(), n = (name = name.trim().split(/^|\s+/g)).length, i = -1;
-        if (value = node.classList) {
-          while (++i < n) if (!value.contains(name[i])) return false;
-        } else {
-          value = node.className;
-          if (value.baseVal != null) value = value.baseVal;
-          while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;
-        }
-        return true;
-      }
-      for (value in name) this.each(d3_selection_classed(value, name[value]));
-      return this;
-    }
-    return this.each(d3_selection_classed(name, value));
-  };
-  d3_selectionPrototype.style = function(name, value, priority) {
-    var n = arguments.length;
-    if (n < 3) {
-      if (typeof name !== "string") {
-        if (n < 2) value = "";
-        for (priority in name) this.each(d3_selection_style(priority, name[priority], value));
-        return this;
-      }
-      if (n < 2) return window.getComputedStyle(this.node(), null).getPropertyValue(name);
-      priority = "";
-    }
-    return this.each(d3_selection_style(name, value, priority));
-  };
-  d3_selectionPrototype.property = function(name, value) {
-    if (arguments.length < 2) {
-      if (typeof name === "string") return this.node()[name];
-      for (value in name) this.each(d3_selection_property(value, name[value]));
-      return this;
-    }
-    return this.each(d3_selection_property(name, value));
-  };
-  d3_selectionPrototype.text = function(value) {
-    return arguments.length < 1 ? this.node().textContent : this.each(typeof value === "function" ? function() {
-      var v = value.apply(this, arguments);
-      this.textContent = v == null ? "" : v;
-    } : value == null ? function() {
-      this.textContent = "";
-    } : function() {
-      this.textContent = value;
-    });
-  };
-  d3_selectionPrototype.html = function(value) {
-    return arguments.length < 1 ? this.node().innerHTML : this.each(typeof value === "function" ? function() {
-      var v = value.apply(this, arguments);
-      this.innerHTML = v == null ? "" : v;
-    } : value == null ? function() {
-      this.innerHTML = "";
-    } : function() {
-      this.innerHTML = value;
-    });
-  };
-  d3_selectionPrototype.append = function(name) {
-    function append() {
-      return this.appendChild(document.createElementNS(this.namespaceURI, name));
-    }
-    function appendNS() {
-      return this.appendChild(document.createElementNS(name.space, name.local));
-    }
-    name = d3.ns.qualify(name);
-    return this.select(name.local ? appendNS : append);
-  };
-  d3_selectionPrototype.insert = function(name, before) {
-    function insert() {
-      return this.insertBefore(document.createElementNS(this.namespaceURI, name), d3_select(before, this));
-    }
-    function insertNS() {
-      return this.insertBefore(document.createElementNS(name.space, name.local), d3_select(before, this));
-    }
-    name = d3.ns.qualify(name);
-    return this.select(name.local ? insertNS : insert);
-  };
-  d3_selectionPrototype.remove = function() {
-    return this.each(function() {
-      var parent = this.parentNode;
-      if (parent) parent.removeChild(this);
-    });
-  };
-  d3_selectionPrototype.data = function(value, key) {
-    function bind(group, groupData) {
-      var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), n1 = Math.max(n, m), updateNodes = [], enterNodes = [], exitNodes = [], node, nodeData;
-      if (key) {
-        var nodeByKeyValue = new d3_Map, keyValues = [], keyValue, j = groupData.length;
-        for (i = -1; ++i < n; ) {
-          keyValue = key.call(node = group[i], node.__data__, i);
-          if (nodeByKeyValue.has(keyValue)) {
-            exitNodes[j++] = node;
-          } else {
-            nodeByKeyValue.set(keyValue, node);
-          }
-          keyValues.push(keyValue);
-        }
-        for (i = -1; ++i < m; ) {
-          keyValue = key.call(groupData, nodeData = groupData[i], i);
-          if (nodeByKeyValue.has(keyValue)) {
-            updateNodes[i] = node = nodeByKeyValue.get(keyValue);
-            node.__data__ = nodeData;
-            enterNodes[i] = exitNodes[i] = null;
-          } else {
-            enterNodes[i] = d3_selection_dataNode(nodeData);
-            updateNodes[i] = exitNodes[i] = null;
-          }
-          nodeByKeyValue.remove(keyValue);
-        }
-        for (i = -1; ++i < n; ) {
-          if (nodeByKeyValue.has(keyValues[i])) {
-            exitNodes[i] = group[i];
-          }
-        }
-      } else {
-        for (i = -1; ++i < n0; ) {
-          node = group[i];
-          nodeData = groupData[i];
-          if (node) {
-            node.__data__ = nodeData;
-            updateNodes[i] = node;
-            enterNodes[i] = exitNodes[i] = null;
-          } else {
-            enterNodes[i] = d3_selection_dataNode(nodeData);
-            updateNodes[i] = exitNodes[i] = null;
-          }
-        }
-        for (; i < m; ++i) {
-          enterNodes[i] = d3_selection_dataNode(groupData[i]);
-          updateNodes[i] = exitNodes[i] = null;
-        }
-        for (; i < n1; ++i) {
-          exitNodes[i] = group[i];
-          enterNodes[i] = updateNodes[i] = null;
-        }
-      }
-      enterNodes.update = updateNodes;
-      enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;
-      enter.push(enterNodes);
-      update.push(updateNodes);
-      exit.push(exitNodes);
-    }
-    var i = -1, n = this.length, group, node;
-    if (!arguments.length) {
-      value = new Array(n = (group = this[0]).length);
-      while (++i < n) {
-        if (node = group[i]) {
-          value[i] = node.__data__;
-        }
-      }
-      return value;
-    }
-    var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);
-    if (typeof value === "function") {
-      while (++i < n) {
-        bind(group = this[i], value.call(group, group.parentNode.__data__, i));
-      }
-    } else {
-      while (++i < n) {
-        bind(group = this[i], value);
-      }
-    }
-    update.enter = function() {
-      return enter;
+  d3.functor = d3_functor;
+  function d3_identity(d) {
+    return d;
+  }
+  d3.xhr = function(url, mimeType, callback) {
+    var xhr = {}, dispatch = d3.dispatch("progress", "load", "error"), headers = {}, response = d3_identity, request = new (d3_window.XDomainRequest && /^(http(s)?:)?\/\//.test(url) ? XDomainRequest : XMLHttpRequest)();
+    "onload" in request ? request.onload = request.onerror = respond : request.onreadystatechange = function() {
+      request.readyState > 3 && respond();
     };
-    update.exit = function() {
-      return exit;
+    function respond() {
+      var s = request.status;
+      !s && request.responseText || s >= 200 && s < 300 || s === 304 ? dispatch.load.call(xhr, response.call(xhr, request)) : dispatch.error.call(xhr, request);
+    }
+    request.onprogress = function(event) {
+      var o = d3.event;
+      d3.event = event;
+      try {
+        dispatch.progress.call(xhr, request);
+      } finally {
+        d3.event = o;
+      }
     };
-    return update;
-  };
-  d3_selectionPrototype.datum = d3_selectionPrototype.map = function(value) {
-    return arguments.length < 1 ? this.property("__data__") : this.property("__data__", value);
-  };
-  d3_selectionPrototype.filter = function(filter) {
-    var subgroups = [], subgroup, group, node;
-    if (typeof filter !== "function") filter = d3_selection_filter(filter);
-    for (var j = 0, m = this.length; j < m; j++) {
-      subgroups.push(subgroup = []);
-      subgroup.parentNode = (group = this[j]).parentNode;
-      for (var i = 0, n = group.length; i < n; i++) {
-        if ((node = group[i]) && filter.call(node, node.__data__, i)) {
-          subgroup.push(node);
-        }
-      }
-    }
-    return d3_selection(subgroups);
-  };
-  d3_selectionPrototype.order = function() {
-    for (var j = -1, m = this.length; ++j < m; ) {
-      for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {
-        if (node = group[i]) {
-          if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
-          next = node;
-        }
-      }
-    }
-    return this;
-  };
-  d3_selectionPrototype.sort = function(comparator) {
-    comparator = d3_selection_sortComparator.apply(this, arguments);
-    for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);
-    return this.order();
-  };
-  d3_selectionPrototype.on = function(type, listener, capture) {
-    var n = arguments.length;
-    if (n < 3) {
-      if (typeof type !== "string") {
-        if (n < 2) listener = false;
-        for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));
-        return this;
-      }
-      if (n < 2) return (n = this.node()["__on" + type]) && n._;
-      capture = false;
-    }
-    return this.each(d3_selection_on(type, listener, capture));
-  };
-  d3_selectionPrototype.each = function(callback) {
-    return d3_selection_each(this, function(node, i, j) {
-      callback.call(node, node.__data__, i, j);
+    xhr.header = function(name, value) {
+      name = (name + "").toLowerCase();
+      if (arguments.length < 2) return headers[name];
+      if (value == null) delete headers[name]; else headers[name] = value + "";
+      return xhr;
+    };
+    xhr.mimeType = function(value) {
+      if (!arguments.length) return mimeType;
+      mimeType = value == null ? null : value + "";
+      return xhr;
+    };
+    xhr.response = function(value) {
+      response = value;
+      return xhr;
+    };
+    [ "get", "post" ].forEach(function(method) {
+      xhr[method] = function() {
+        return xhr.send.apply(xhr, [ method ].concat(d3_array(arguments)));
+      };
     });
+    xhr.send = function(method, data, callback) {
+      if (arguments.length === 2 && typeof data === "function") callback = data, data = null;
+      request.open(method, url, true);
+      if (mimeType != null && !("accept" in headers)) headers["accept"] = mimeType + ",*/*";
+      if (request.setRequestHeader) for (var name in headers) request.setRequestHeader(name, headers[name]);
+      if (mimeType != null && request.overrideMimeType) request.overrideMimeType(mimeType);
+      if (callback != null) xhr.on("error", callback).on("load", function(request) {
+        callback(null, request);
+      });
+      request.send(data == null ? null : data);
+      return xhr;
+    };
+    xhr.abort = function() {
+      request.abort();
+      return xhr;
+    };
+    d3.rebind(xhr, dispatch, "on");
+    if (arguments.length === 2 && typeof mimeType === "function") callback = mimeType,
+    mimeType = null;
+    return callback == null ? xhr : xhr.get(d3_xhr_fixCallback(callback));
   };
-  d3_selectionPrototype.call = function(callback) {
-    callback.apply(this, (arguments[0] = this, arguments));
-    return this;
-  };
-  d3_selectionPrototype.empty = function() {
-    return !this.node();
-  };
-  d3_selectionPrototype.node = function(callback) {
-    for (var j = 0, m = this.length; j < m; j++) {
-      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
-        var node = group[i];
-        if (node) return node;
-      }
+  function d3_xhr_fixCallback(callback) {
+    return callback.length === 1 ? function(error, request) {
+      callback(error == null ? request : null);
+    } : callback;
+  }
+  function d3_dsv(delimiter, mimeType) {
+    var reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);
+    function dsv(url, row, callback) {
+      if (arguments.length < 3) callback = row, row = null;
+      var xhr = d3.xhr(url, mimeType, callback);
+      xhr.row = function(_) {
+        return arguments.length ? xhr.response((row = _) == null ? response : typedResponse(_)) : row;
+      };
+      return xhr.row(row);
     }
-    return null;
-  };
-  d3_selectionPrototype.transition = function() {
-    var subgroups = [], subgroup, node;
-    for (var j = -1, m = this.length; ++j < m; ) {
-      subgroups.push(subgroup = []);
-      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
-        subgroup.push((node = group[i]) ? {
-          node: node,
-          delay: d3_transitionDelay,
-          duration: d3_transitionDuration
-        } : null);
-      }
+    function response(request) {
+      return dsv.parse(request.responseText);
     }
-    return d3_transition(subgroups, d3_transitionId || ++d3_transitionNextId, Date.now());
-  };
-  var d3_selectionRoot = d3_selection([ [ document ] ]);
-  d3_selectionRoot[0].parentNode = d3_selectRoot;
-  d3.select = function(selector) {
-    return typeof selector === "string" ? d3_selectionRoot.select(selector) : d3_selection([ [ selector ] ]);
-  };
-  d3.selectAll = function(selector) {
-    return typeof selector === "string" ? d3_selectionRoot.selectAll(selector) : d3_selection([ d3_array(selector) ]);
-  };
-  var d3_selection_enterPrototype = [];
-  d3.selection.enter = d3_selection_enter;
-  d3.selection.enter.prototype = d3_selection_enterPrototype;
-  d3_selection_enterPrototype.append = d3_selectionPrototype.append;
-  d3_selection_enterPrototype.insert = d3_selectionPrototype.insert;
-  d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
-  d3_selection_enterPrototype.node = d3_selectionPrototype.node;
-  d3_selection_enterPrototype.select = function(selector) {
-    var subgroups = [], subgroup, subnode, upgroup, group, node;
-    for (var j = -1, m = this.length; ++j < m; ) {
-      upgroup = (group = this[j]).update;
-      subgroups.push(subgroup = []);
-      subgroup.parentNode = group.parentNode;
-      for (var i = -1, n = group.length; ++i < n; ) {
-        if (node = group[i]) {
-          subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i));
-          subnode.__data__ = node.__data__;
-        } else {
-          subgroup.push(null);
+    function typedResponse(f) {
+      return function(request) {
+        return dsv.parse(request.responseText, f);
+      };
+    }
+    dsv.parse = function(text, f) {
+      var o;
+      return dsv.parseRows(text, function(row, i) {
+        if (o) return o(row, i - 1);
+        var a = new Function("d", "return {" + row.map(function(name, i) {
+          return JSON.stringify(name) + ": d[" + i + "]";
+        }).join(",") + "}");
+        o = f ? function(row, i) {
+          return f(a(row), i);
+        } : a;
+      });
+    };
+    dsv.parseRows = function(text, f) {
+      var EOL = {}, EOF = {}, rows = [], N = text.length, I = 0, n = 0, t, eol;
+      function token() {
+        if (I >= N) return EOF;
+        if (eol) return eol = false, EOL;
+        var j = I;
+        if (text.charCodeAt(j) === 34) {
+          var i = j;
+          while (i++ < N) {
+            if (text.charCodeAt(i) === 34) {
+              if (text.charCodeAt(i + 1) !== 34) break;
+              ++i;
+            }
+          }
+          I = i + 2;
+          var c = text.charCodeAt(i + 1);
+          if (c === 13) {
+            eol = true;
+            if (text.charCodeAt(i + 2) === 10) ++I;
+          } else if (c === 10) {
+            eol = true;
+          }
+          return text.substring(j + 1, i).replace(/""/g, '"');
         }
-      }
-    }
-    return d3_selection(subgroups);
-  };
-  var d3_transitionPrototype = [], d3_transitionNextId = 0, d3_transitionId = 0, d3_transitionDefaultDelay = 0, d3_transitionDefaultDuration = 250, d3_transitionDefaultEase = d3.ease("cubic-in-out"), d3_transitionDelay = d3_transitionDefaultDelay, d3_transitionDuration = d3_transitionDefaultDuration, d3_transitionEase = d3_transitionDefaultEase;
-  d3_transitionPrototype.call = d3_selectionPrototype.call;
-  d3.transition = function(selection) {
-    return arguments.length ? d3_transitionId ? selection.transition() : selection : d3_selectionRoot.transition();
-  };
-  d3.transition.prototype = d3_transitionPrototype;
-  d3_transitionPrototype.select = function(selector) {
-    var subgroups = [], subgroup, subnode, node;
-    if (typeof selector !== "function") selector = d3_selection_selector(selector);
-    for (var j = -1, m = this.length; ++j < m; ) {
-      subgroups.push(subgroup = []);
-      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
-        if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) {
-          if ("__data__" in node.node) subnode.__data__ = node.node.__data__;
-          subgroup.push({
-            node: subnode,
-            delay: node.delay,
-            duration: node.duration
-          });
-        } else {
-          subgroup.push(null);
+        while (I < N) {
+          var c = text.charCodeAt(I++), k = 1;
+          if (c === 10) eol = true; else if (c === 13) {
+            eol = true;
+            if (text.charCodeAt(I) === 10) ++I, ++k;
+          } else if (c !== delimiterCode) continue;
+          return text.substring(j, I - k);
         }
+        return text.substring(j);
       }
-    }
-    return d3_transition(subgroups, this.id, this.time).ease(this.ease());
-  };
-  d3_transitionPrototype.selectAll = function(selector) {
-    var subgroups = [], subgroup, subnodes, node;
-    if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
-    for (var j = -1, m = this.length; ++j < m; ) {
-      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
-        if (node = group[i]) {
-          subnodes = selector.call(node.node, node.node.__data__, i);
-          subgroups.push(subgroup = []);
-          for (var k = -1, o = subnodes.length; ++k < o; ) {
-            subgroup.push({
-              node: subnodes[k],
-              delay: node.delay,
-              duration: node.duration
-            });
+      while ((t = token()) !== EOF) {
+        var a = [];
+        while (t !== EOL && t !== EOF) {
+          a.push(t);
+          t = token();
+        }
+        if (f && !(a = f(a, n++))) continue;
+        rows.push(a);
+      }
+      return rows;
+    };
+    dsv.format = function(rows) {
+      if (Array.isArray(rows[0])) return dsv.formatRows(rows);
+      var fieldSet = new d3_Set(), fields = [];
+      rows.forEach(function(row) {
+        for (var field in row) {
+          if (!fieldSet.has(field)) {
+            fields.push(fieldSet.add(field));
           }
         }
-      }
+      });
+      return [ fields.map(formatValue).join(delimiter) ].concat(rows.map(function(row) {
+        return fields.map(function(field) {
+          return formatValue(row[field]);
+        }).join(delimiter);
+      })).join("\n");
+    };
+    dsv.formatRows = function(rows) {
+      return rows.map(formatRow).join("\n");
+    };
+    function formatRow(row) {
+      return row.map(formatValue).join(delimiter);
     }
-    return d3_transition(subgroups, this.id, this.time).ease(this.ease());
-  };
-  d3_transitionPrototype.filter = function(filter) {
-    var subgroups = [], subgroup, group, node;
-    if (typeof filter !== "function") filter = d3_selection_filter(filter);
-    for (var j = 0, m = this.length; j < m; j++) {
-      subgroups.push(subgroup = []);
-      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
-        if ((node = group[i]) && filter.call(node.node, node.node.__data__, i)) {
-          subgroup.push(node);
-        }
-      }
+    function formatValue(text) {
+      return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;
     }
-    return d3_transition(subgroups, this.id, this.time).ease(this.ease());
-  };
-  d3_transitionPrototype.attr = function(name, value) {
-    if (arguments.length < 2) {
-      for (value in name) this.attrTween(value, d3_tweenByName(name[value], value));
-      return this;
-    }
-    return this.attrTween(name, d3_tweenByName(value, name));
-  };
-  d3_transitionPrototype.attrTween = function(nameNS, tween) {
-    function attrTween(d, i) {
-      var f = tween.call(this, d, i, this.getAttribute(name));
-      return f === d3_tweenRemove ? (this.removeAttribute(name), null) : f && function(t) {
-        this.setAttribute(name, f(t));
-      };
-    }
-    function attrTweenNS(d, i) {
-      var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
-      return f === d3_tweenRemove ? (this.removeAttributeNS(name.space, name.local), null) : f && function(t) {
-        this.setAttributeNS(name.space, name.local, f(t));
-      };
-    }
-    var name = d3.ns.qualify(nameNS);
-    return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
-  };
-  d3_transitionPrototype.style = function(name, value, priority) {
-    var n = arguments.length;
-    if (n < 3) {
-      if (typeof name !== "string") {
-        if (n < 2) value = "";
-        for (priority in name) this.styleTween(priority, d3_tweenByName(name[priority], priority), value);
-        return this;
-      }
-      priority = "";
-    }
-    return this.styleTween(name, d3_tweenByName(value, name), priority);
-  };
-  d3_transitionPrototype.styleTween = function(name, tween, priority) {
-    if (arguments.length < 3) priority = "";
-    return this.tween("style." + name, function(d, i) {
-      var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));
-      return f === d3_tweenRemove ? (this.style.removeProperty(name), null) : f && function(t) {
-        this.style.setProperty(name, f(t), priority);
-      };
-    });
-  };
-  d3_transitionPrototype.text = function(value) {
-    return this.tween("text", function(d, i) {
-      this.textContent = typeof value === "function" ? value.call(this, d, i) : value;
-    });
-  };
-  d3_transitionPrototype.remove = function() {
-    return this.each("end.transition", function() {
-      var p;
-      if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);
-    });
-  };
-  d3_transitionPrototype.delay = function(value) {
-    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
-      node.delay = value.call(node = node.node, node.__data__, i, j) | 0;
-    } : (value = value | 0, function(node) {
-      node.delay = value;
-    }));
-  };
-  d3_transitionPrototype.duration = function(value) {
-    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
-      node.duration = Math.max(1, value.call(node = node.node, node.__data__, i, j) | 0);
-    } : (value = Math.max(1, value | 0), function(node) {
-      node.duration = value;
-    }));
-  };
-  d3_transitionPrototype.transition = function() {
-    return this.select(d3_this);
-  };
-  d3.tween = function(b, interpolate) {
-    function tweenFunction(d, i, a) {
-      var v = b.call(this, d, i);
-      return v == null ? a != "" && d3_tweenRemove : a != v && interpolate(a, v + "");
-    }
-    function tweenString(d, i, a) {
-      return a != b && interpolate(a, b);
-    }
-    return typeof b === "function" ? tweenFunction : b == null ? d3_tweenNull : (b += "", tweenString);
-  };
-  var d3_tweenRemove = {};
+    return dsv;
+  }
+  d3.csv = d3_dsv(",", "text/csv");
+  d3.tsv = d3_dsv(" ", "text/tab-separated-values");
   var d3_timer_id = 0, d3_timer_byId = {}, d3_timer_queue = null, d3_timer_interval, d3_timer_timeout;
   d3.timer = function(callback, delay, then) {
     if (arguments.length < 3) {
@@ -4086,6 +1812,25 @@
       d3_timer_frame(d3_timer_step);
     }
   };
+  function d3_timer_step() {
+    var elapsed, now = Date.now(), t1 = d3_timer_queue;
+    while (t1) {
+      elapsed = now - t1.then;
+      if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed);
+      t1 = t1.next;
+    }
+    var delay = d3_timer_flush() - now;
+    if (delay > 24) {
+      if (isFinite(delay)) {
+        clearTimeout(d3_timer_timeout);
+        d3_timer_timeout = setTimeout(d3_timer_step, delay);
+      }
+      d3_timer_interval = 0;
+    } else {
+      d3_timer_interval = 1;
+      d3_timer_frame(d3_timer_step);
+    }
+  }
   d3.timer.flush = function() {
     var elapsed, now = Date.now(), t1 = d3_timer_queue;
     while (t1) {
@@ -4095,112 +1840,1898 @@
     }
     d3_timer_flush();
   };
-  var d3_timer_frame = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function(callback) {
+  function d3_timer_flush() {
+    var t0 = null, t1 = d3_timer_queue, then = Infinity;
+    while (t1) {
+      if (t1.flush) {
+        delete d3_timer_byId[t1.callback.id];
+        t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;
+      } else {
+        then = Math.min(then, t1.then + t1.delay);
+        t1 = (t0 = t1).next;
+      }
+    }
+    return then;
+  }
+  var d3_timer_frame = d3_window.requestAnimationFrame || d3_window.webkitRequestAnimationFrame || d3_window.mozRequestAnimationFrame || d3_window.oRequestAnimationFrame || d3_window.msRequestAnimationFrame || function(callback) {
     setTimeout(callback, 17);
   };
-  d3.mouse = function(container) {
-    return d3_mousePoint(container, d3_eventSource());
-  };
-  var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
-  d3.touches = function(container, touches) {
-    if (arguments.length < 2) touches = d3_eventSource().touches;
-    return touches ? d3_array(touches).map(function(touch) {
-      var point = d3_mousePoint(container, touch);
-      point.identifier = touch.identifier;
-      return point;
-    }) : [];
-  };
-  d3.scale = {};
-  d3.scale.linear = function() {
-    return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3.interpolate, false);
-  };
-  d3.scale.log = function() {
-    return d3_scale_log(d3.scale.linear(), d3_scale_logp);
-  };
-  var d3_scale_logFormat = d3.format(".0e");
-  d3_scale_logp.pow = function(x) {
-    return Math.pow(10, x);
-  };
-  d3_scale_logn.pow = function(x) {
-    return -Math.pow(10, -x);
-  };
-  d3.scale.pow = function() {
-    return d3_scale_pow(d3.scale.linear(), 1);
-  };
-  d3.scale.sqrt = function() {
-    return d3.scale.pow().exponent(.5);
-  };
-  d3.scale.ordinal = function() {
-    return d3_scale_ordinal([], {
-      t: "range",
-      a: [ [] ]
-    });
-  };
-  d3.scale.category10 = function() {
-    return d3.scale.ordinal().range(d3_category10);
-  };
-  d3.scale.category20 = function() {
-    return d3.scale.ordinal().range(d3_category20);
-  };
-  d3.scale.category20b = function() {
-    return d3.scale.ordinal().range(d3_category20b);
-  };
-  d3.scale.category20c = function() {
-    return d3.scale.ordinal().range(d3_category20c);
-  };
-  var d3_category10 = [ "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf" ];
-  var d3_category20 = [ "#1f77b4", "#aec7e8", "#ff7f0e", "#ffbb78", "#2ca02c", "#98df8a", "#d62728", "#ff9896", "#9467bd", "#c5b0d5", "#8c564b", "#c49c94", "#e377c2", "#f7b6d2", "#7f7f7f", "#c7c7c7", "#bcbd22", "#dbdb8d", "#17becf", "#9edae5" ];
-  var d3_category20b = [ "#393b79", "#5254a3", "#6b6ecf", "#9c9ede", "#637939", "#8ca252", "#b5cf6b", "#cedb9c", "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94", "#843c39", "#ad494a", "#d6616b", "#e7969c", "#7b4173", "#a55194", "#ce6dbd", "#de9ed6" ];
-  var d3_category20c = [ "#3182bd", "#6baed6", "#9ecae1", "#c6dbef", "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2", "#31a354", "#74c476", "#a1d99b", "#c7e9c0", "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb", "#636363", "#969696", "#bdbdbd", "#d9d9d9" ];
-  d3.scale.quantile = function() {
-    return d3_scale_quantile([], []);
-  };
-  d3.scale.quantize = function() {
-    return d3_scale_quantize(0, 1, [ 0, 1 ]);
-  };
-  d3.scale.threshold = function() {
-    return d3_scale_threshold([ .5 ], [ 0, 1 ]);
-  };
-  d3.scale.identity = function() {
-    return d3_scale_identity([ 0, 1 ]);
-  };
-  d3.svg = {};
-  d3.svg.arc = function() {
-    function arc() {
-      var r0 = innerRadius.apply(this, arguments), r1 = outerRadius.apply(this, arguments), a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset, a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset, da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0), df = da < Math.PI ? "0" : "1", c0 = Math.cos(a0), s0 = Math.sin(a0), c1 = Math.cos(a1), s1 = Math.sin(a1);
-      return da >= d3_svg_arcMax ? r0 ? "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "M0," + r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + -r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + r0 + "Z" : "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "Z" : r0 ? "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L" + r0 * c1 + "," + r0 * s1 + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0 + "Z" : "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L0,0" + "Z";
+  var d3_format_decimalPoint = ".", d3_format_thousandsSeparator = ",", d3_format_grouping = [ 3, 3 ];
+  var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix);
+  d3.formatPrefix = function(value, precision) {
+    var i = 0;
+    if (value) {
+      if (value < 0) value *= -1;
+      if (precision) value = d3.round(value, d3_format_precision(value, precision));
+      i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
+      i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3));
     }
-    var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
-    arc.innerRadius = function(v) {
-      if (!arguments.length) return innerRadius;
-      innerRadius = d3_functor(v);
-      return arc;
-    };
-    arc.outerRadius = function(v) {
-      if (!arguments.length) return outerRadius;
-      outerRadius = d3_functor(v);
-      return arc;
-    };
-    arc.startAngle = function(v) {
-      if (!arguments.length) return startAngle;
-      startAngle = d3_functor(v);
-      return arc;
-    };
-    arc.endAngle = function(v) {
-      if (!arguments.length) return endAngle;
-      endAngle = d3_functor(v);
-      return arc;
-    };
-    arc.centroid = function() {
-      var r = (innerRadius.apply(this, arguments) + outerRadius.apply(this, arguments)) / 2, a = (startAngle.apply(this, arguments) + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;
-      return [ Math.cos(a) * r, Math.sin(a) * r ];
-    };
-    return arc;
+    return d3_formatPrefixes[8 + i / 3];
   };
-  var d3_svg_arcOffset = -Math.PI / 2, d3_svg_arcMax = 2 * Math.PI - 1e-6;
+  function d3_formatPrefix(d, i) {
+    var k = Math.pow(10, Math.abs(8 - i) * 3);
+    return {
+      scale: i > 8 ? function(d) {
+        return d / k;
+      } : function(d) {
+        return d * k;
+      },
+      symbol: d
+    };
+  }
+  d3.round = function(x, n) {
+    return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);
+  };
+  d3.format = function(specifier) {
+    var match = d3_format_re.exec(specifier), fill = match[1] || " ", align = match[2] || ">", sign = match[3] || "", basePrefix = match[4] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, suffix = "", integer = false;
+    if (precision) precision = +precision.substring(1);
+    if (zfill || fill === "0" && align === "=") {
+      zfill = fill = "0";
+      align = "=";
+      if (comma) width -= Math.floor((width - 1) / 4);
+    }
+    switch (type) {
+     case "n":
+      comma = true;
+      type = "g";
+      break;
+
+     case "%":
+      scale = 100;
+      suffix = "%";
+      type = "f";
+      break;
+
+     case "p":
+      scale = 100;
+      suffix = "%";
+      type = "r";
+      break;
+
+     case "b":
+     case "o":
+     case "x":
+     case "X":
+      if (basePrefix) basePrefix = "0" + type.toLowerCase();
+
+     case "c":
+     case "d":
+      integer = true;
+      precision = 0;
+      break;
+
+     case "s":
+      scale = -1;
+      type = "r";
+      break;
+    }
+    if (basePrefix === "#") basePrefix = "";
+    if (type == "r" && !precision) type = "g";
+    if (precision != null) {
+      if (type == "g") precision = Math.max(1, Math.min(21, precision)); else if (type == "e" || type == "f") precision = Math.max(0, Math.min(20, precision));
+    }
+    type = d3_format_types.get(type) || d3_format_typeDefault;
+    var zcomma = zfill && comma;
+    return function(value) {
+      if (integer && value % 1) return "";
+      var negative = value < 0 || value === 0 && 1 / value < 0 ? (value = -value, "-") : sign;
+      if (scale < 0) {
+        var prefix = d3.formatPrefix(value, precision);
+        value = prefix.scale(value);
+        suffix = prefix.symbol;
+      } else {
+        value *= scale;
+      }
+      value = type(value, precision);
+      if (!zfill && comma) value = d3_format_group(value);
+      var length = basePrefix.length + value.length + (zcomma ? 0 : negative.length), padding = length < width ? new Array(length = width - length + 1).join(fill) : "";
+      if (zcomma) value = d3_format_group(padding + value);
+      if (d3_format_decimalPoint) value.replace(".", d3_format_decimalPoint);
+      negative += basePrefix;
+      return (align === "<" ? negative + value + padding : align === ">" ? padding + negative + value : align === "^" ? padding.substring(0, length >>= 1) + negative + value + padding.substring(length) : negative + (zcomma ? value : padding + value)) + suffix;
+    };
+  };
+  var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?(\d+)?(,)?(\.-?\d+)?([a-z%])?/i;
+  var d3_format_types = d3.map({
+    b: function(x) {
+      return x.toString(2);
+    },
+    c: function(x) {
+      return String.fromCharCode(x);
+    },
+    o: function(x) {
+      return x.toString(8);
+    },
+    x: function(x) {
+      return x.toString(16);
+    },
+    X: function(x) {
+      return x.toString(16).toUpperCase();
+    },
+    g: function(x, p) {
+      return x.toPrecision(p);
+    },
+    e: function(x, p) {
+      return x.toExponential(p);
+    },
+    f: function(x, p) {
+      return x.toFixed(p);
+    },
+    r: function(x, p) {
+      return (x = d3.round(x, d3_format_precision(x, p))).toFixed(Math.max(0, Math.min(20, d3_format_precision(x * (1 + 1e-15), p))));
+    }
+  });
+  function d3_format_precision(x, p) {
+    return p - (x ? Math.ceil(Math.log(x) / Math.LN10) : 1);
+  }
+  function d3_format_typeDefault(x) {
+    return x + "";
+  }
+  var d3_format_group = d3_identity;
+  if (d3_format_grouping) {
+    var d3_format_groupingLength = d3_format_grouping.length;
+    d3_format_group = function(value) {
+      var i = value.lastIndexOf("."), f = i >= 0 ? "." + value.substring(i + 1) : (i = value.length,
+      ""), t = [], j = 0, g = d3_format_grouping[0];
+      while (i > 0 && g > 0) {
+        t.push(value.substring(i -= g, i + g));
+        g = d3_format_grouping[j = (j + 1) % d3_format_groupingLength];
+      }
+      return t.reverse().join(d3_format_thousandsSeparator || "") + f;
+    };
+  }
+  d3.geo = {};
+  d3.geo.stream = function(object, listener) {
+    if (d3_geo_streamObjectType.hasOwnProperty(object.type)) {
+      d3_geo_streamObjectType[object.type](object, listener);
+    } else {
+      d3_geo_streamGeometry(object, listener);
+    }
+  };
+  function d3_geo_streamGeometry(geometry, listener) {
+    if (d3_geo_streamGeometryType.hasOwnProperty(geometry.type)) {
+      d3_geo_streamGeometryType[geometry.type](geometry, listener);
+    }
+  }
+  var d3_geo_streamObjectType = {
+    Feature: function(feature, listener) {
+      d3_geo_streamGeometry(feature.geometry, listener);
+    },
+    FeatureCollection: function(object, listener) {
+      var features = object.features, i = -1, n = features.length;
+      while (++i < n) d3_geo_streamGeometry(features[i].geometry, listener);
+    }
+  };
+  var d3_geo_streamGeometryType = {
+    Sphere: function(object, listener) {
+      listener.sphere();
+    },
+    Point: function(object, listener) {
+      var coordinate = object.coordinates;
+      listener.point(coordinate[0], coordinate[1]);
+    },
+    MultiPoint: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length, coordinate;
+      while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1]);
+    },
+    LineString: function(object, listener) {
+      d3_geo_streamLine(object.coordinates, listener, 0);
+    },
+    MultiLineString: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length;
+      while (++i < n) d3_geo_streamLine(coordinates[i], listener, 0);
+    },
+    Polygon: function(object, listener) {
+      d3_geo_streamPolygon(object.coordinates, listener);
+    },
+    MultiPolygon: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length;
+      while (++i < n) d3_geo_streamPolygon(coordinates[i], listener);
+    },
+    GeometryCollection: function(object, listener) {
+      var geometries = object.geometries, i = -1, n = geometries.length;
+      while (++i < n) d3_geo_streamGeometry(geometries[i], listener);
+    }
+  };
+  function d3_geo_streamLine(coordinates, listener, closed) {
+    var i = -1, n = coordinates.length - closed, coordinate;
+    listener.lineStart();
+    while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1]);
+    listener.lineEnd();
+  }
+  function d3_geo_streamPolygon(coordinates, listener) {
+    var i = -1, n = coordinates.length;
+    listener.polygonStart();
+    while (++i < n) d3_geo_streamLine(coordinates[i], listener, 1);
+    listener.polygonEnd();
+  }
+  d3.geo.area = function(object) {
+    d3_geo_areaSum = 0;
+    d3.geo.stream(object, d3_geo_area);
+    return d3_geo_areaSum;
+  };
+  var d3_geo_areaSum, d3_geo_areaRingU, d3_geo_areaRingV;
+  var d3_geo_area = {
+    sphere: function() {
+      d3_geo_areaSum += 4 * π;
+    },
+    point: d3_noop,
+    lineStart: d3_noop,
+    lineEnd: d3_noop,
+    polygonStart: function() {
+      d3_geo_areaRingU = 1, d3_geo_areaRingV = 0;
+      d3_geo_area.lineStart = d3_geo_areaRingStart;
+    },
+    polygonEnd: function() {
+      var area = 2 * Math.atan2(d3_geo_areaRingV, d3_geo_areaRingU);
+      d3_geo_areaSum += area < 0 ? 4 * π + area : area;
+      d3_geo_area.lineStart = d3_geo_area.lineEnd = d3_geo_area.point = d3_noop;
+    }
+  };
+  function d3_geo_areaRingStart() {
+    var λ00, φ00, λ0, cosφ0, sinφ0;
+    d3_geo_area.point = function(λ, φ) {
+      d3_geo_area.point = nextPoint;
+      λ0 = (λ00 = λ) * d3_radians, cosφ0 = Math.cos(φ = (φ00 = φ) * d3_radians / 2 + π / 4),
+      sinφ0 = Math.sin(φ);
+    };
+    function nextPoint(λ, φ) {
+      λ *= d3_radians;
+      φ = φ * d3_radians / 2 + π / 4;
+      var dλ = λ - λ0, cosφ = Math.cos(φ), sinφ = Math.sin(φ), k = sinφ0 * sinφ, u0 = d3_geo_areaRingU, v0 = d3_geo_areaRingV, u = cosφ0 * cosφ + k * Math.cos(dλ), v = k * Math.sin(dλ);
+      d3_geo_areaRingU = u0 * u - v0 * v;
+      d3_geo_areaRingV = v0 * u + u0 * v;
+      λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ;
+    }
+    d3_geo_area.lineEnd = function() {
+      nextPoint(λ00, φ00);
+    };
+  }
+  d3.geo.bounds = d3_geo_bounds(d3_identity);
+  function d3_geo_bounds(projectStream) {
+    var x0, y0, x1, y1;
+    var bound = {
+      point: boundPoint,
+      lineStart: d3_noop,
+      lineEnd: d3_noop,
+      polygonStart: function() {
+        bound.lineEnd = boundPolygonLineEnd;
+      },
+      polygonEnd: function() {
+        bound.point = boundPoint;
+      }
+    };
+    function boundPoint(x, y) {
+      if (x < x0) x0 = x;
+      if (x > x1) x1 = x;
+      if (y < y0) y0 = y;
+      if (y > y1) y1 = y;
+    }
+    function boundPolygonLineEnd() {
+      bound.point = bound.lineEnd = d3_noop;
+    }
+    return function(feature) {
+      y1 = x1 = -(x0 = y0 = Infinity);
+      d3.geo.stream(feature, projectStream(bound));
+      return [ [ x0, y0 ], [ x1, y1 ] ];
+    };
+  }
+  d3.geo.centroid = function(object) {
+    d3_geo_centroidDimension = d3_geo_centroidW = d3_geo_centroidX = d3_geo_centroidY = d3_geo_centroidZ = 0;
+    d3.geo.stream(object, d3_geo_centroid);
+    var m;
+    if (d3_geo_centroidW && Math.abs(m = Math.sqrt(d3_geo_centroidX * d3_geo_centroidX + d3_geo_centroidY * d3_geo_centroidY + d3_geo_centroidZ * d3_geo_centroidZ)) > ε) {
+      return [ Math.atan2(d3_geo_centroidY, d3_geo_centroidX) * d3_degrees, Math.asin(Math.max(-1, Math.min(1, d3_geo_centroidZ / m))) * d3_degrees ];
+    }
+  };
+  var d3_geo_centroidDimension, d3_geo_centroidW, d3_geo_centroidX, d3_geo_centroidY, d3_geo_centroidZ;
+  var d3_geo_centroid = {
+    sphere: function() {
+      if (d3_geo_centroidDimension < 2) {
+        d3_geo_centroidDimension = 2;
+        d3_geo_centroidW = d3_geo_centroidX = d3_geo_centroidY = d3_geo_centroidZ = 0;
+      }
+    },
+    point: d3_geo_centroidPoint,
+    lineStart: d3_geo_centroidLineStart,
+    lineEnd: d3_geo_centroidLineEnd,
+    polygonStart: function() {
+      if (d3_geo_centroidDimension < 2) {
+        d3_geo_centroidDimension = 2;
+        d3_geo_centroidW = d3_geo_centroidX = d3_geo_centroidY = d3_geo_centroidZ = 0;
+      }
+      d3_geo_centroid.lineStart = d3_geo_centroidRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_centroid.lineStart = d3_geo_centroidLineStart;
+    }
+  };
+  function d3_geo_centroidPoint(λ, φ) {
+    if (d3_geo_centroidDimension) return;
+    ++d3_geo_centroidW;
+    λ *= d3_radians;
+    var cosφ = Math.cos(φ *= d3_radians);
+    d3_geo_centroidX += (cosφ * Math.cos(λ) - d3_geo_centroidX) / d3_geo_centroidW;
+    d3_geo_centroidY += (cosφ * Math.sin(λ) - d3_geo_centroidY) / d3_geo_centroidW;
+    d3_geo_centroidZ += (Math.sin(φ) - d3_geo_centroidZ) / d3_geo_centroidW;
+  }
+  function d3_geo_centroidRingStart() {
+    var λ00, φ00;
+    d3_geo_centroidDimension = 1;
+    d3_geo_centroidLineStart();
+    d3_geo_centroidDimension = 2;
+    var linePoint = d3_geo_centroid.point;
+    d3_geo_centroid.point = function(λ, φ) {
+      linePoint(λ00 = λ, φ00 = φ);
+    };
+    d3_geo_centroid.lineEnd = function() {
+      d3_geo_centroid.point(λ00, φ00);
+      d3_geo_centroidLineEnd();
+      d3_geo_centroid.lineEnd = d3_geo_centroidLineEnd;
+    };
+  }
+  function d3_geo_centroidLineStart() {
+    var x0, y0, z0;
+    if (d3_geo_centroidDimension > 1) return;
+    if (d3_geo_centroidDimension < 1) {
+      d3_geo_centroidDimension = 1;
+      d3_geo_centroidW = d3_geo_centroidX = d3_geo_centroidY = d3_geo_centroidZ = 0;
+    }
+    d3_geo_centroid.point = function(λ, φ) {
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians);
+      x0 = cosφ * Math.cos(λ);
+      y0 = cosφ * Math.sin(λ);
+      z0 = Math.sin(φ);
+      d3_geo_centroid.point = nextPoint;
+    };
+    function nextPoint(λ, φ) {
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), w = Math.atan2(Math.sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);
+      d3_geo_centroidW += w;
+      d3_geo_centroidX += w * (x0 + (x0 = x));
+      d3_geo_centroidY += w * (y0 + (y0 = y));
+      d3_geo_centroidZ += w * (z0 + (z0 = z));
+    }
+  }
+  function d3_geo_centroidLineEnd() {
+    d3_geo_centroid.point = d3_geo_centroidPoint;
+  }
+  function d3_geo_cartesian(spherical) {
+    var λ = spherical[0], φ = spherical[1], cosφ = Math.cos(φ);
+    return [ cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ) ];
+  }
+  function d3_geo_cartesianDot(a, b) {
+    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+  }
+  function d3_geo_cartesianCross(a, b) {
+    return [ a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0] ];
+  }
+  function d3_geo_cartesianAdd(a, b) {
+    a[0] += b[0];
+    a[1] += b[1];
+    a[2] += b[2];
+  }
+  function d3_geo_cartesianScale(vector, k) {
+    return [ vector[0] * k, vector[1] * k, vector[2] * k ];
+  }
+  function d3_geo_cartesianNormalize(d) {
+    var l = Math.sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
+    d[0] /= l;
+    d[1] /= l;
+    d[2] /= l;
+  }
+  function d3_true() {
+    return true;
+  }
+  function d3_geo_spherical(cartesian) {
+    return [ Math.atan2(cartesian[1], cartesian[0]), Math.asin(Math.max(-1, Math.min(1, cartesian[2]))) ];
+  }
+  function d3_geo_sphericalEqual(a, b) {
+    return Math.abs(a[0] - b[0]) < ε && Math.abs(a[1] - b[1]) < ε;
+  }
+  function d3_geo_clipPolygon(segments, compare, inside, interpolate, listener) {
+    var subject = [], clip = [];
+    segments.forEach(function(segment) {
+      if ((n = segment.length - 1) <= 0) return;
+      var n, p0 = segment[0], p1 = segment[n];
+      if (d3_geo_sphericalEqual(p0, p1)) {
+        listener.lineStart();
+        for (var i = 0; i < n; ++i) listener.point((p0 = segment[i])[0], p0[1]);
+        listener.lineEnd();
+        return;
+      }
+      var a = {
+        point: p0,
+        points: segment,
+        other: null,
+        visited: false,
+        entry: true,
+        subject: true
+      }, b = {
+        point: p0,
+        points: [ p0 ],
+        other: a,
+        visited: false,
+        entry: false,
+        subject: false
+      };
+      a.other = b;
+      subject.push(a);
+      clip.push(b);
+      a = {
+        point: p1,
+        points: [ p1 ],
+        other: null,
+        visited: false,
+        entry: false,
+        subject: true
+      };
+      b = {
+        point: p1,
+        points: [ p1 ],
+        other: a,
+        visited: false,
+        entry: true,
+        subject: false
+      };
+      a.other = b;
+      subject.push(a);
+      clip.push(b);
+    });
+    clip.sort(compare);
+    d3_geo_clipPolygonLinkCircular(subject);
+    d3_geo_clipPolygonLinkCircular(clip);
+    if (!subject.length) return;
+    if (inside) for (var i = 1, e = !inside(clip[0].point), n = clip.length; i < n; ++i) {
+      clip[i].entry = e = !e;
+    }
+    var start = subject[0], current, points, point;
+    while (1) {
+      current = start;
+      while (current.visited) if ((current = current.next) === start) return;
+      points = current.points;
+      listener.lineStart();
+      do {
+        current.visited = current.other.visited = true;
+        if (current.entry) {
+          if (current.subject) {
+            for (var i = 0; i < points.length; i++) listener.point((point = points[i])[0], point[1]);
+          } else {
+            interpolate(current.point, current.next.point, 1, listener);
+          }
+          current = current.next;
+        } else {
+          if (current.subject) {
+            points = current.prev.points;
+            for (var i = points.length; --i >= 0; ) listener.point((point = points[i])[0], point[1]);
+          } else {
+            interpolate(current.point, current.prev.point, -1, listener);
+          }
+          current = current.prev;
+        }
+        current = current.other;
+        points = current.points;
+      } while (!current.visited);
+      listener.lineEnd();
+    }
+  }
+  function d3_geo_clipPolygonLinkCircular(array) {
+    if (!(n = array.length)) return;
+    var n, i = 0, a = array[0], b;
+    while (++i < n) {
+      a.next = b = array[i];
+      b.prev = a;
+      a = b;
+    }
+    a.next = b = array[0];
+    b.prev = a;
+  }
+  function d3_geo_clip(pointVisible, clipLine, interpolate) {
+    return function(listener) {
+      var line = clipLine(listener);
+      var clip = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          clip.point = pointRing;
+          clip.lineStart = ringStart;
+          clip.lineEnd = ringEnd;
+          invisible = false;
+          invisibleArea = visibleArea = 0;
+          segments = [];
+          listener.polygonStart();
+        },
+        polygonEnd: function() {
+          clip.point = point;
+          clip.lineStart = lineStart;
+          clip.lineEnd = lineEnd;
+          segments = d3.merge(segments);
+          if (segments.length) {
+            d3_geo_clipPolygon(segments, d3_geo_clipSort, null, interpolate, listener);
+          } else if (visibleArea < -ε || invisible && invisibleArea < -ε) {
+            listener.lineStart();
+            interpolate(null, null, 1, listener);
+            listener.lineEnd();
+          }
+          listener.polygonEnd();
+          segments = null;
+        },
+        sphere: function() {
+          listener.polygonStart();
+          listener.lineStart();
+          interpolate(null, null, 1, listener);
+          listener.lineEnd();
+          listener.polygonEnd();
+        }
+      };
+      function point(λ, φ) {
+        if (pointVisible(λ, φ)) listener.point(λ, φ);
+      }
+      function pointLine(λ, φ) {
+        line.point(λ, φ);
+      }
+      function lineStart() {
+        clip.point = pointLine;
+        line.lineStart();
+      }
+      function lineEnd() {
+        clip.point = point;
+        line.lineEnd();
+      }
+      var segments, visibleArea, invisibleArea, invisible;
+      var buffer = d3_geo_clipBufferListener(), ringListener = clipLine(buffer), ring;
+      function pointRing(λ, φ) {
+        ringListener.point(λ, φ);
+        ring.push([ λ, φ ]);
+      }
+      function ringStart() {
+        ringListener.lineStart();
+        ring = [];
+      }
+      function ringEnd() {
+        pointRing(ring[0][0], ring[0][1]);
+        ringListener.lineEnd();
+        var clean = ringListener.clean(), ringSegments = buffer.buffer(), segment, n = ringSegments.length;
+        if (!n) {
+          invisible = true;
+          invisibleArea += d3_geo_clipAreaRing(ring, -1);
+          ring = null;
+          return;
+        }
+        ring = null;
+        if (clean & 1) {
+          segment = ringSegments[0];
+          visibleArea += d3_geo_clipAreaRing(segment, 1);
+          var n = segment.length - 1, i = -1, point;
+          listener.lineStart();
+          while (++i < n) listener.point((point = segment[i])[0], point[1]);
+          listener.lineEnd();
+          return;
+        }
+        if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
+        segments.push(ringSegments.filter(d3_geo_clipSegmentLength1));
+      }
+      return clip;
+    };
+  }
+  function d3_geo_clipSegmentLength1(segment) {
+    return segment.length > 1;
+  }
+  function d3_geo_clipBufferListener() {
+    var lines = [], line;
+    return {
+      lineStart: function() {
+        lines.push(line = []);
+      },
+      point: function(λ, φ) {
+        line.push([ λ, φ ]);
+      },
+      lineEnd: d3_noop,
+      buffer: function() {
+        var buffer = lines;
+        lines = [];
+        line = null;
+        return buffer;
+      },
+      rejoin: function() {
+        if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
+      }
+    };
+  }
+  function d3_geo_clipAreaRing(ring, invisible) {
+    if (!(n = ring.length)) return 0;
+    var n, i = 0, area = 0, p = ring[0], λ = p[0], φ = p[1], cosφ = Math.cos(φ), x0 = Math.atan2(invisible * Math.sin(λ) * cosφ, Math.sin(φ)), y0 = 1 - invisible * Math.cos(λ) * cosφ, x1 = x0, x, y;
+    while (++i < n) {
+      p = ring[i];
+      cosφ = Math.cos(φ = p[1]);
+      x = Math.atan2(invisible * Math.sin(λ = p[0]) * cosφ, Math.sin(φ));
+      y = 1 - invisible * Math.cos(λ) * cosφ;
+      if (Math.abs(y0 - 2) < ε && Math.abs(y - 2) < ε) continue;
+      if (Math.abs(y) < ε || Math.abs(y0) < ε) {} else if (Math.abs(Math.abs(x - x0) - π) < ε) {
+        if (y + y0 > 2) area += 4 * (x - x0);
+      } else if (Math.abs(y0 - 2) < ε) area += 4 * (x - x1); else area += ((3 * π + x - x0) % (2 * π) - π) * (y0 + y);
+      x1 = x0, x0 = x, y0 = y;
+    }
+    return area;
+  }
+  function d3_geo_clipSort(a, b) {
+    return ((a = a.point)[0] < 0 ? a[1] - π / 2 - ε : π / 2 - a[1]) - ((b = b.point)[0] < 0 ? b[1] - π / 2 - ε : π / 2 - b[1]);
+  }
+  var d3_geo_clipAntimeridian = d3_geo_clip(d3_true, d3_geo_clipAntimeridianLine, d3_geo_clipAntimeridianInterpolate);
+  function d3_geo_clipAntimeridianLine(listener) {
+    var λ0 = NaN, φ0 = NaN, sλ0 = NaN, clean;
+    return {
+      lineStart: function() {
+        listener.lineStart();
+        clean = 1;
+      },
+      point: function(λ1, φ1) {
+        var sλ1 = λ1 > 0 ? π : -π, dλ = Math.abs(λ1 - λ0);
+        if (Math.abs(dλ - π) < ε) {
+          listener.point(λ0, φ0 = (φ0 + φ1) / 2 > 0 ? π / 2 : -π / 2);
+          listener.point(sλ0, φ0);
+          listener.lineEnd();
+          listener.lineStart();
+          listener.point(sλ1, φ0);
+          listener.point(λ1, φ0);
+          clean = 0;
+        } else if (sλ0 !== sλ1 && dλ >= π) {
+          if (Math.abs(λ0 - sλ0) < ε) λ0 -= sλ0 * ε;
+          if (Math.abs(λ1 - sλ1) < ε) λ1 -= sλ1 * ε;
+          φ0 = d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1);
+          listener.point(sλ0, φ0);
+          listener.lineEnd();
+          listener.lineStart();
+          listener.point(sλ1, φ0);
+          clean = 0;
+        }
+        listener.point(λ0 = λ1, φ0 = φ1);
+        sλ0 = sλ1;
+      },
+      lineEnd: function() {
+        listener.lineEnd();
+        λ0 = φ0 = NaN;
+      },
+      clean: function() {
+        return 2 - clean;
+      }
+    };
+  }
+  function d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1) {
+    var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);
+    return Math.abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;
+  }
+  function d3_geo_clipAntimeridianInterpolate(from, to, direction, listener) {
+    var φ;
+    if (from == null) {
+      φ = direction * π / 2;
+      listener.point(-π, φ);
+      listener.point(0, φ);
+      listener.point(π, φ);
+      listener.point(π, 0);
+      listener.point(π, -φ);
+      listener.point(0, -φ);
+      listener.point(-π, -φ);
+      listener.point(-π, 0);
+      listener.point(-π, φ);
+    } else if (Math.abs(from[0] - to[0]) > ε) {
+      var s = (from[0] < to[0] ? 1 : -1) * π;
+      φ = direction * s / 2;
+      listener.point(-s, φ);
+      listener.point(0, φ);
+      listener.point(s, φ);
+    } else {
+      listener.point(to[0], to[1]);
+    }
+  }
+  function d3_geo_clipCircle(radius) {
+    var cr = Math.cos(radius), smallRadius = cr > 0, notHemisphere = Math.abs(cr) > ε, interpolate = d3_geo_circleInterpolate(radius, 6 * d3_radians);
+    return d3_geo_clip(visible, clipLine, interpolate);
+    function visible(λ, φ) {
+      return Math.cos(λ) * Math.cos(φ) > cr;
+    }
+    function clipLine(listener) {
+      var point0, c0, v0, v00, clean;
+      return {
+        lineStart: function() {
+          v00 = v0 = false;
+          clean = 1;
+        },
+        point: function(λ, φ) {
+          var point1 = [ λ, φ ], point2, v = visible(λ, φ), c = smallRadius ? v ? 0 : code(λ, φ) : v ? code(λ + (λ < 0 ? π : -π), φ) : 0;
+          if (!point0 && (v00 = v0 = v)) listener.lineStart();
+          if (v !== v0) {
+            point2 = intersect(point0, point1);
+            if (d3_geo_sphericalEqual(point0, point2) || d3_geo_sphericalEqual(point1, point2)) {
+              point1[0] += ε;
+              point1[1] += ε;
+              v = visible(point1[0], point1[1]);
+            }
+          }
+          if (v !== v0) {
+            clean = 0;
+            if (v) {
+              listener.lineStart();
+              point2 = intersect(point1, point0);
+              listener.point(point2[0], point2[1]);
+            } else {
+              point2 = intersect(point0, point1);
+              listener.point(point2[0], point2[1]);
+              listener.lineEnd();
+            }
+            point0 = point2;
+          } else if (notHemisphere && point0 && smallRadius ^ v) {
+            var t;
+            if (!(c & c0) && (t = intersect(point1, point0, true))) {
+              clean = 0;
+              if (smallRadius) {
+                listener.lineStart();
+                listener.point(t[0][0], t[0][1]);
+                listener.point(t[1][0], t[1][1]);
+                listener.lineEnd();
+              } else {
+                listener.point(t[1][0], t[1][1]);
+                listener.lineEnd();
+                listener.lineStart();
+                listener.point(t[0][0], t[0][1]);
+              }
+            }
+          }
+          if (v && (!point0 || !d3_geo_sphericalEqual(point0, point1))) {
+            listener.point(point1[0], point1[1]);
+          }
+          point0 = point1, v0 = v, c0 = c;
+        },
+        lineEnd: function() {
+          if (v0) listener.lineEnd();
+          point0 = null;
+        },
+        clean: function() {
+          return clean | (v00 && v0) << 1;
+        }
+      };
+    }
+    function intersect(a, b, two) {
+      var pa = d3_geo_cartesian(a), pb = d3_geo_cartesian(b);
+      var n1 = [ 1, 0, 0 ], n2 = d3_geo_cartesianCross(pa, pb), n2n2 = d3_geo_cartesianDot(n2, n2), n1n2 = n2[0], determinant = n2n2 - n1n2 * n1n2;
+      if (!determinant) return !two && a;
+      var c1 = cr * n2n2 / determinant, c2 = -cr * n1n2 / determinant, n1xn2 = d3_geo_cartesianCross(n1, n2), A = d3_geo_cartesianScale(n1, c1), B = d3_geo_cartesianScale(n2, c2);
+      d3_geo_cartesianAdd(A, B);
+      var u = n1xn2, w = d3_geo_cartesianDot(A, u), uu = d3_geo_cartesianDot(u, u), t2 = w * w - uu * (d3_geo_cartesianDot(A, A) - 1);
+      if (t2 < 0) return;
+      var t = Math.sqrt(t2), q = d3_geo_cartesianScale(u, (-w - t) / uu);
+      d3_geo_cartesianAdd(q, A);
+      q = d3_geo_spherical(q);
+      if (!two) return q;
+      var λ0 = a[0], λ1 = b[0], φ0 = a[1], φ1 = b[1], z;
+      if (λ1 < λ0) z = λ0, λ0 = λ1, λ1 = z;
+      var δλ = λ1 - λ0, polar = Math.abs(δλ - π) < ε, meridian = polar || δλ < ε;
+      if (!polar && φ1 < φ0) z = φ0, φ0 = φ1, φ1 = z;
+      if (meridian ? polar ? φ0 + φ1 > 0 ^ q[1] < (Math.abs(q[0] - λ0) < ε ? φ0 : φ1) : φ0 <= q[1] && q[1] <= φ1 : δλ > π ^ (λ0 <= q[0] && q[0] <= λ1)) {
+        var q1 = d3_geo_cartesianScale(u, (-w + t) / uu);
+        d3_geo_cartesianAdd(q1, A);
+        return [ q, d3_geo_spherical(q1) ];
+      }
+    }
+    function code(λ, φ) {
+      var r = smallRadius ? radius : π - radius, code = 0;
+      if (λ < -r) code |= 1; else if (λ > r) code |= 2;
+      if (φ < -r) code |= 4; else if (φ > r) code |= 8;
+      return code;
+    }
+  }
+  var d3_geo_clipViewMAX = 1e9;
+  function d3_geo_clipView(x0, y0, x1, y1) {
+    return function(listener) {
+      var listener_ = listener, bufferListener = d3_geo_clipBufferListener(), segments, polygon, ring;
+      var clip = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          listener = bufferListener;
+          segments = [];
+          polygon = [];
+        },
+        polygonEnd: function() {
+          listener = listener_;
+          if ((segments = d3.merge(segments)).length) {
+            listener.polygonStart();
+            d3_geo_clipPolygon(segments, compare, inside, interpolate, listener);
+            listener.polygonEnd();
+          } else if (insidePolygon([ x0, y0 ])) {
+            listener.polygonStart(), listener.lineStart();
+            interpolate(null, null, 1, listener);
+            listener.lineEnd(), listener.polygonEnd();
+          }
+          segments = polygon = ring = null;
+        }
+      };
+      function inside(point) {
+        var a = corner(point, -1), i = insidePolygon([ a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0 ]);
+        return i;
+      }
+      function insidePolygon(p) {
+        var wn = 0, n = polygon.length, y = p[1];
+        for (var i = 0; i < n; ++i) {
+          for (var j = 1, v = polygon[i], m = v.length, a = v[0]; j < m; ++j) {
+            b = v[j];
+            if (a[1] <= y) {
+              if (b[1] > y && isLeft(a, b, p) > 0) ++wn;
+            } else {
+              if (b[1] <= y && isLeft(a, b, p) < 0) --wn;
+            }
+            a = b;
+          }
+        }
+        return wn !== 0;
+      }
+      function isLeft(a, b, c) {
+        return (b[0] - a[0]) * (c[1] - a[1]) - (c[0] - a[0]) * (b[1] - a[1]);
+      }
+      function interpolate(from, to, direction, listener) {
+        var a = 0, a1 = 0;
+        if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoints(from, to) < 0 ^ direction > 0) {
+          do {
+            listener.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);
+          } while ((a = (a + direction + 4) % 4) !== a1);
+        } else {
+          listener.point(to[0], to[1]);
+        }
+      }
+      function visible(x, y) {
+        return x0 <= x && x <= x1 && y0 <= y && y <= y1;
+      }
+      function point(x, y) {
+        if (visible(x, y)) listener.point(x, y);
+      }
+      var x__, y__, v__, x_, y_, v_, first;
+      function lineStart() {
+        clip.point = linePoint;
+        if (polygon) polygon.push(ring = []);
+        first = true;
+        v_ = false;
+        x_ = y_ = NaN;
+      }
+      function lineEnd() {
+        if (segments) {
+          linePoint(x__, y__);
+          if (v__ && v_) bufferListener.rejoin();
+          segments.push(bufferListener.buffer());
+        }
+        clip.point = point;
+        if (v_) listener.lineEnd();
+      }
+      function linePoint(x, y) {
+        x = Math.max(-d3_geo_clipViewMAX, Math.min(d3_geo_clipViewMAX, x));
+        y = Math.max(-d3_geo_clipViewMAX, Math.min(d3_geo_clipViewMAX, y));
+        var v = visible(x, y);
+        if (polygon) ring.push([ x, y ]);
+        if (first) {
+          x__ = x, y__ = y, v__ = v;
+          first = false;
+          if (v) {
+            listener.lineStart();
+            listener.point(x, y);
+          }
+        } else {
+          if (v && v_) listener.point(x, y); else {
+            var a = [ x_, y_ ], b = [ x, y ];
+            if (clipLine(a, b)) {
+              if (!v_) {
+                listener.lineStart();
+                listener.point(a[0], a[1]);
+              }
+              listener.point(b[0], b[1]);
+              if (!v) listener.lineEnd();
+            } else {
+              listener.lineStart();
+              listener.point(x, y);
+            }
+          }
+        }
+        x_ = x, y_ = y, v_ = v;
+      }
+      return clip;
+    };
+    function corner(p, direction) {
+      return Math.abs(p[0] - x0) < ε ? direction > 0 ? 0 : 3 : Math.abs(p[0] - x1) < ε ? direction > 0 ? 2 : 1 : Math.abs(p[1] - y0) < ε ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2;
+    }
+    function compare(a, b) {
+      return comparePoints(a.point, b.point);
+    }
+    function comparePoints(a, b) {
+      var ca = corner(a, 1), cb = corner(b, 1);
+      return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0];
+    }
+    function clipLine(a, b) {
+      var dx = b[0] - a[0], dy = b[1] - a[1], t = [ 0, 1 ];
+      if (Math.abs(dx) < ε && Math.abs(dy) < ε) return x0 <= a[0] && a[0] <= x1 && y0 <= a[1] && a[1] <= y1;
+      if (d3_geo_clipViewT(x0 - a[0], dx, t) && d3_geo_clipViewT(a[0] - x1, -dx, t) && d3_geo_clipViewT(y0 - a[1], dy, t) && d3_geo_clipViewT(a[1] - y1, -dy, t)) {
+        if (t[1] < 1) {
+          b[0] = a[0] + t[1] * dx;
+          b[1] = a[1] + t[1] * dy;
+        }
+        if (t[0] > 0) {
+          a[0] += t[0] * dx;
+          a[1] += t[0] * dy;
+        }
+        return true;
+      }
+      return false;
+    }
+  }
+  function d3_geo_clipViewT(num, denominator, t) {
+    if (Math.abs(denominator) < ε) return num <= 0;
+    var u = num / denominator;
+    if (denominator > 0) {
+      if (u > t[1]) return false;
+      if (u > t[0]) t[0] = u;
+    } else {
+      if (u < t[0]) return false;
+      if (u < t[1]) t[1] = u;
+    }
+    return true;
+  }
+  function d3_geo_compose(a, b) {
+    function compose(x, y) {
+      return x = a(x, y), b(x[0], x[1]);
+    }
+    if (a.invert && b.invert) compose.invert = function(x, y) {
+      return x = b.invert(x, y), x && a.invert(x[0], x[1]);
+    };
+    return compose;
+  }
+  function d3_geo_resample(project) {
+    var δ2 = .5, maxDepth = 16;
+    function resample(stream) {
+      var λ0, x0, y0, a0, b0, c0;
+      var resample = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          stream.polygonStart();
+          resample.lineStart = polygonLineStart;
+        },
+        polygonEnd: function() {
+          stream.polygonEnd();
+          resample.lineStart = lineStart;
+        }
+      };
+      function point(x, y) {
+        x = project(x, y);
+        stream.point(x[0], x[1]);
+      }
+      function lineStart() {
+        x0 = NaN;
+        resample.point = linePoint;
+        stream.lineStart();
+      }
+      function linePoint(λ, φ) {
+        var c = d3_geo_cartesian([ λ, φ ]), p = project(λ, φ);
+        resampleLineTo(x0, y0, λ0, a0, b0, c0, x0 = p[0], y0 = p[1], λ0 = λ, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
+        stream.point(x0, y0);
+      }
+      function lineEnd() {
+        resample.point = point;
+        stream.lineEnd();
+      }
+      function polygonLineStart() {
+        var λ00, φ00, x00, y00, a00, b00, c00;
+        lineStart();
+        resample.point = function(λ, φ) {
+          linePoint(λ00 = λ, φ00 = φ), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
+          resample.point = linePoint;
+        };
+        resample.lineEnd = function() {
+          resampleLineTo(x0, y0, λ0, a0, b0, c0, x00, y00, λ00, a00, b00, c00, maxDepth, stream);
+          resample.lineEnd = lineEnd;
+          lineEnd();
+        };
+      }
+      return resample;
+    }
+    function resampleLineTo(x0, y0, λ0, a0, b0, c0, x1, y1, λ1, a1, b1, c1, depth, stream) {
+      var dx = x1 - x0, dy = y1 - y0, d2 = dx * dx + dy * dy;
+      if (d2 > 4 * δ2 && depth--) {
+        var a = a0 + a1, b = b0 + b1, c = c0 + c1, m = Math.sqrt(a * a + b * b + c * c), φ2 = Math.asin(c /= m), λ2 = Math.abs(Math.abs(c) - 1) < ε ? (λ0 + λ1) / 2 : Math.atan2(b, a), p = project(λ2, φ2), x2 = p[0], y2 = p[1], dx2 = x2 - x0, dy2 = y2 - y0, dz = dy * dx2 - dx * dy2;
+        if (dz * dz / d2 > δ2 || Math.abs((dx * dx2 + dy * dy2) / d2 - .5) > .3) {
+          resampleLineTo(x0, y0, λ0, a0, b0, c0, x2, y2, λ2, a /= m, b /= m, c, depth, stream);
+          stream.point(x2, y2);
+          resampleLineTo(x2, y2, λ2, a, b, c, x1, y1, λ1, a1, b1, c1, depth, stream);
+        }
+      }
+    }
+    resample.precision = function(_) {
+      if (!arguments.length) return Math.sqrt(δ2);
+      maxDepth = (δ2 = _ * _) > 0 && 16;
+      return resample;
+    };
+    return resample;
+  }
+  d3.geo.projection = d3_geo_projection;
+  d3.geo.projectionMutator = d3_geo_projectionMutator;
+  function d3_geo_projection(project) {
+    return d3_geo_projectionMutator(function() {
+      return project;
+    })();
+  }
+  function d3_geo_projectionMutator(projectAt) {
+    var project, rotate, projectRotate, projectResample = d3_geo_resample(function(x, y) {
+      x = project(x, y);
+      return [ x[0] * k + δx, δy - x[1] * k ];
+    }), k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx, δy, preclip = d3_geo_clipAntimeridian, postclip = d3_identity, clipAngle = null, clipExtent = null;
+    function projection(point) {
+      point = projectRotate(point[0] * d3_radians, point[1] * d3_radians);
+      return [ point[0] * k + δx, δy - point[1] * k ];
+    }
+    function invert(point) {
+      point = projectRotate.invert((point[0] - δx) / k, (δy - point[1]) / k);
+      return point && [ point[0] * d3_degrees, point[1] * d3_degrees ];
+    }
+    projection.stream = function(stream) {
+      return d3_geo_projectionRadiansRotate(rotate, preclip(projectResample(postclip(stream))));
+    };
+    projection.clipAngle = function(_) {
+      if (!arguments.length) return clipAngle;
+      preclip = _ == null ? (clipAngle = _, d3_geo_clipAntimeridian) : d3_geo_clipCircle((clipAngle = +_) * d3_radians);
+      return projection;
+    };
+    projection.clipExtent = function(_) {
+      if (!arguments.length) return clipExtent;
+      clipExtent = _;
+      postclip = _ == null ? d3_identity : d3_geo_clipView(_[0][0], _[0][1], _[1][0], _[1][1]);
+      return projection;
+    };
+    projection.scale = function(_) {
+      if (!arguments.length) return k;
+      k = +_;
+      return reset();
+    };
+    projection.translate = function(_) {
+      if (!arguments.length) return [ x, y ];
+      x = +_[0];
+      y = +_[1];
+      return reset();
+    };
+    projection.center = function(_) {
+      if (!arguments.length) return [ λ * d3_degrees, φ * d3_degrees ];
+      λ = _[0] % 360 * d3_radians;
+      φ = _[1] % 360 * d3_radians;
+      return reset();
+    };
+    projection.rotate = function(_) {
+      if (!arguments.length) return [ δλ * d3_degrees, δφ * d3_degrees, δγ * d3_degrees ];
+      δλ = _[0] % 360 * d3_radians;
+      δφ = _[1] % 360 * d3_radians;
+      δγ = _.length > 2 ? _[2] % 360 * d3_radians : 0;
+      return reset();
+    };
+    d3.rebind(projection, projectResample, "precision");
+    function reset() {
+      projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);
+      var center = project(λ, φ);
+      δx = x - center[0] * k;
+      δy = y + center[1] * k;
+      return projection;
+    }
+    return function() {
+      project = projectAt.apply(this, arguments);
+      projection.invert = project.invert && invert;
+      return reset();
+    };
+  }
+  function d3_geo_projectionRadiansRotate(rotate, stream) {
+    return {
+      point: function(x, y) {
+        y = rotate(x * d3_radians, y * d3_radians), x = y[0];
+        stream.point(x > π ? x - 2 * π : x < -π ? x + 2 * π : x, y[1]);
+      },
+      sphere: function() {
+        stream.sphere();
+      },
+      lineStart: function() {
+        stream.lineStart();
+      },
+      lineEnd: function() {
+        stream.lineEnd();
+      },
+      polygonStart: function() {
+        stream.polygonStart();
+      },
+      polygonEnd: function() {
+        stream.polygonEnd();
+      }
+    };
+  }
+  function d3_geo_equirectangular(λ, φ) {
+    return [ λ, φ ];
+  }
+  (d3.geo.equirectangular = function() {
+    return d3_geo_projection(d3_geo_equirectangular);
+  }).raw = d3_geo_equirectangular.invert = d3_geo_equirectangular;
+  d3.geo.rotation = function(rotate) {
+    rotate = d3_geo_rotation(rotate[0] % 360 * d3_radians, rotate[1] * d3_radians, rotate.length > 2 ? rotate[2] * d3_radians : 0);
+    function forward(coordinates) {
+      coordinates = rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
+      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
+    }
+    forward.invert = function(coordinates) {
+      coordinates = rotate.invert(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
+      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
+    };
+    return forward;
+  };
+  function d3_geo_rotation(δλ, δφ, δγ) {
+    return δλ ? δφ || δγ ? d3_geo_compose(d3_geo_rotationλ(δλ), d3_geo_rotationφγ(δφ, δγ)) : d3_geo_rotationλ(δλ) : δφ || δγ ? d3_geo_rotationφγ(δφ, δγ) : d3_geo_equirectangular;
+  }
+  function d3_geo_forwardRotationλ(δλ) {
+    return function(λ, φ) {
+      return λ += δλ, [ λ > π ? λ - 2 * π : λ < -π ? λ + 2 * π : λ, φ ];
+    };
+  }
+  function d3_geo_rotationλ(δλ) {
+    var rotation = d3_geo_forwardRotationλ(δλ);
+    rotation.invert = d3_geo_forwardRotationλ(-δλ);
+    return rotation;
+  }
+  function d3_geo_rotationφγ(δφ, δγ) {
+    var cosδφ = Math.cos(δφ), sinδφ = Math.sin(δφ), cosδγ = Math.cos(δγ), sinδγ = Math.sin(δγ);
+    function rotation(λ, φ) {
+      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδφ + x * sinδφ;
+      return [ Math.atan2(y * cosδγ - k * sinδγ, x * cosδφ - z * sinδφ), Math.asin(Math.max(-1, Math.min(1, k * cosδγ + y * sinδγ))) ];
+    }
+    rotation.invert = function(λ, φ) {
+      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδγ - y * sinδγ;
+      return [ Math.atan2(y * cosδγ + z * sinδγ, x * cosδφ + k * sinδφ), Math.asin(Math.max(-1, Math.min(1, k * cosδφ - x * sinδφ))) ];
+    };
+    return rotation;
+  }
+  d3.geo.circle = function() {
+    var origin = [ 0, 0 ], angle, precision = 6, interpolate;
+    function circle() {
+      var center = typeof origin === "function" ? origin.apply(this, arguments) : origin, rotate = d3_geo_rotation(-center[0] * d3_radians, -center[1] * d3_radians, 0).invert, ring = [];
+      interpolate(null, null, 1, {
+        point: function(x, y) {
+          ring.push(x = rotate(x, y));
+          x[0] *= d3_degrees, x[1] *= d3_degrees;
+        }
+      });
+      return {
+        type: "Polygon",
+        coordinates: [ ring ]
+      };
+    }
+    circle.origin = function(x) {
+      if (!arguments.length) return origin;
+      origin = x;
+      return circle;
+    };
+    circle.angle = function(x) {
+      if (!arguments.length) return angle;
+      interpolate = d3_geo_circleInterpolate((angle = +x) * d3_radians, precision * d3_radians);
+      return circle;
+    };
+    circle.precision = function(_) {
+      if (!arguments.length) return precision;
+      interpolate = d3_geo_circleInterpolate(angle * d3_radians, (precision = +_) * d3_radians);
+      return circle;
+    };
+    return circle.angle(90);
+  };
+  function d3_geo_circleInterpolate(radius, precision) {
+    var cr = Math.cos(radius), sr = Math.sin(radius);
+    return function(from, to, direction, listener) {
+      if (from != null) {
+        from = d3_geo_circleAngle(cr, from);
+        to = d3_geo_circleAngle(cr, to);
+        if (direction > 0 ? from < to : from > to) from += direction * 2 * π;
+      } else {
+        from = radius + direction * 2 * π;
+        to = radius;
+      }
+      var point;
+      for (var step = direction * precision, t = from; direction > 0 ? t > to : t < to; t -= step) {
+        listener.point((point = d3_geo_spherical([ cr, -sr * Math.cos(t), -sr * Math.sin(t) ]))[0], point[1]);
+      }
+    };
+  }
+  function d3_geo_circleAngle(cr, point) {
+    var a = d3_geo_cartesian(point);
+    a[0] -= cr;
+    d3_geo_cartesianNormalize(a);
+    var angle = d3_acos(-a[1]);
+    return ((-a[2] < 0 ? -angle : angle) + 2 * Math.PI - ε) % (2 * Math.PI);
+  }
+  d3.geo.distance = function(a, b) {
+    var Δλ = (b[0] - a[0]) * d3_radians, φ0 = a[1] * d3_radians, φ1 = b[1] * d3_radians, sinΔλ = Math.sin(Δλ), cosΔλ = Math.cos(Δλ), sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), sinφ1 = Math.sin(φ1), cosφ1 = Math.cos(φ1), t;
+    return Math.atan2(Math.sqrt((t = cosφ1 * sinΔλ) * t + (t = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * t), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ);
+  };
+  d3.geo.graticule = function() {
+    var x1, x0, X1, X0, y1, y0, Y1, Y0, dx = 10, dy = dx, DX = 90, DY = 360, x, y, X, Y, precision = 2.5;
+    function graticule() {
+      return {
+        type: "MultiLineString",
+        coordinates: lines()
+      };
+    }
+    function lines() {
+      return d3.range(Math.ceil(X0 / DX) * DX, X1, DX).map(X).concat(d3.range(Math.ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(d3.range(Math.ceil(x0 / dx) * dx, x1, dx).filter(function(x) {
+        return Math.abs(x % DX) > ε;
+      }).map(x)).concat(d3.range(Math.ceil(y0 / dy) * dy, y1, dy).filter(function(y) {
+        return Math.abs(y % DY) > ε;
+      }).map(y));
+    }
+    graticule.lines = function() {
+      return lines().map(function(coordinates) {
+        return {
+          type: "LineString",
+          coordinates: coordinates
+        };
+      });
+    };
+    graticule.outline = function() {
+      return {
+        type: "Polygon",
+        coordinates: [ X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1)) ]
+      };
+    };
+    graticule.extent = function(_) {
+      if (!arguments.length) return graticule.minorExtent();
+      return graticule.majorExtent(_).minorExtent(_);
+    };
+    graticule.majorExtent = function(_) {
+      if (!arguments.length) return [ [ X0, Y0 ], [ X1, Y1 ] ];
+      X0 = +_[0][0], X1 = +_[1][0];
+      Y0 = +_[0][1], Y1 = +_[1][1];
+      if (X0 > X1) _ = X0, X0 = X1, X1 = _;
+      if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
+      return graticule.precision(precision);
+    };
+    graticule.minorExtent = function(_) {
+      if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
+      x0 = +_[0][0], x1 = +_[1][0];
+      y0 = +_[0][1], y1 = +_[1][1];
+      if (x0 > x1) _ = x0, x0 = x1, x1 = _;
+      if (y0 > y1) _ = y0, y0 = y1, y1 = _;
+      return graticule.precision(precision);
+    };
+    graticule.step = function(_) {
+      if (!arguments.length) return graticule.minorStep();
+      return graticule.majorStep(_).minorStep(_);
+    };
+    graticule.majorStep = function(_) {
+      if (!arguments.length) return [ DX, DY ];
+      DX = +_[0], DY = +_[1];
+      return graticule;
+    };
+    graticule.minorStep = function(_) {
+      if (!arguments.length) return [ dx, dy ];
+      dx = +_[0], dy = +_[1];
+      return graticule;
+    };
+    graticule.precision = function(_) {
+      if (!arguments.length) return precision;
+      precision = +_;
+      x = d3_geo_graticuleX(y0, y1, 90);
+      y = d3_geo_graticuleY(x0, x1, precision);
+      X = d3_geo_graticuleX(Y0, Y1, 90);
+      Y = d3_geo_graticuleY(X0, X1, precision);
+      return graticule;
+    };
+    return graticule.majorExtent([ [ -180, -90 + ε ], [ 180, 90 - ε ] ]).minorExtent([ [ -180, -80 - ε ], [ 180, 80 + ε ] ]);
+  };
+  function d3_geo_graticuleX(y0, y1, dy) {
+    var y = d3.range(y0, y1 - ε, dy).concat(y1);
+    return function(x) {
+      return y.map(function(y) {
+        return [ x, y ];
+      });
+    };
+  }
+  function d3_geo_graticuleY(x0, x1, dx) {
+    var x = d3.range(x0, x1 - ε, dx).concat(x1);
+    return function(y) {
+      return x.map(function(x) {
+        return [ x, y ];
+      });
+    };
+  }
+  function d3_source(d) {
+    return d.source;
+  }
+  function d3_target(d) {
+    return d.target;
+  }
+  d3.geo.greatArc = function() {
+    var source = d3_source, source_, target = d3_target, target_;
+    function greatArc() {
+      return {
+        type: "LineString",
+        coordinates: [ source_ || source.apply(this, arguments), target_ || target.apply(this, arguments) ]
+      };
+    }
+    greatArc.distance = function() {
+      return d3.geo.distance(source_ || source.apply(this, arguments), target_ || target.apply(this, arguments));
+    };
+    greatArc.source = function(_) {
+      if (!arguments.length) return source;
+      source = _, source_ = typeof _ === "function" ? null : _;
+      return greatArc;
+    };
+    greatArc.target = function(_) {
+      if (!arguments.length) return target;
+      target = _, target_ = typeof _ === "function" ? null : _;
+      return greatArc;
+    };
+    greatArc.precision = function() {
+      return arguments.length ? greatArc : 0;
+    };
+    return greatArc;
+  };
+  d3.geo.interpolate = function(source, target) {
+    return d3_geo_interpolate(source[0] * d3_radians, source[1] * d3_radians, target[0] * d3_radians, target[1] * d3_radians);
+  };
+  function d3_geo_interpolate(x0, y0, x1, y1) {
+    var cy0 = Math.cos(y0), sy0 = Math.sin(y0), cy1 = Math.cos(y1), sy1 = Math.sin(y1), kx0 = cy0 * Math.cos(x0), ky0 = cy0 * Math.sin(x0), kx1 = cy1 * Math.cos(x1), ky1 = cy1 * Math.sin(x1), d = 2 * Math.asin(Math.sqrt(d3_haversin(y1 - y0) + cy0 * cy1 * d3_haversin(x1 - x0))), k = 1 / Math.sin(d);
+    var interpolate = d ? function(t) {
+      var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;
+      return [ Math.atan2(y, x) * d3_degrees, Math.atan2(z, Math.sqrt(x * x + y * y)) * d3_degrees ];
+    } : function() {
+      return [ x0 * d3_degrees, y0 * d3_degrees ];
+    };
+    interpolate.distance = d;
+    return interpolate;
+  }
+  d3.geo.length = function(object) {
+    d3_geo_lengthSum = 0;
+    d3.geo.stream(object, d3_geo_length);
+    return d3_geo_lengthSum;
+  };
+  var d3_geo_lengthSum;
+  var d3_geo_length = {
+    sphere: d3_noop,
+    point: d3_noop,
+    lineStart: d3_geo_lengthLineStart,
+    lineEnd: d3_noop,
+    polygonStart: d3_noop,
+    polygonEnd: d3_noop
+  };
+  function d3_geo_lengthLineStart() {
+    var λ0, sinφ0, cosφ0;
+    d3_geo_length.point = function(λ, φ) {
+      λ0 = λ * d3_radians, sinφ0 = Math.sin(φ *= d3_radians), cosφ0 = Math.cos(φ);
+      d3_geo_length.point = nextPoint;
+    };
+    d3_geo_length.lineEnd = function() {
+      d3_geo_length.point = d3_geo_length.lineEnd = d3_noop;
+    };
+    function nextPoint(λ, φ) {
+      var sinφ = Math.sin(φ *= d3_radians), cosφ = Math.cos(φ), t = Math.abs((λ *= d3_radians) - λ0), cosΔλ = Math.cos(t);
+      d3_geo_lengthSum += Math.atan2(Math.sqrt((t = cosφ * Math.sin(t)) * t + (t = cosφ0 * sinφ - sinφ0 * cosφ * cosΔλ) * t), sinφ0 * sinφ + cosφ0 * cosφ * cosΔλ);
+      λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ;
+    }
+  }
+  function d3_geo_conic(projectAt) {
+    var φ0 = 0, φ1 = π / 3, m = d3_geo_projectionMutator(projectAt), p = m(φ0, φ1);
+    p.parallels = function(_) {
+      if (!arguments.length) return [ φ0 / π * 180, φ1 / π * 180 ];
+      return m(φ0 = _[0] * π / 180, φ1 = _[1] * π / 180);
+    };
+    return p;
+  }
+  function d3_geo_conicEqualArea(φ0, φ1) {
+    var sinφ0 = Math.sin(φ0), n = (sinφ0 + Math.sin(φ1)) / 2, C = 1 + sinφ0 * (2 * n - sinφ0), ρ0 = Math.sqrt(C) / n;
+    function forward(λ, φ) {
+      var ρ = Math.sqrt(C - 2 * n * Math.sin(φ)) / n;
+      return [ ρ * Math.sin(λ *= n), ρ0 - ρ * Math.cos(λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = ρ0 - y;
+      return [ Math.atan2(x, ρ0_y) / n, Math.asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];
+    };
+    return forward;
+  }
+  (d3.geo.conicEqualArea = function() {
+    return d3_geo_conic(d3_geo_conicEqualArea);
+  }).raw = d3_geo_conicEqualArea;
+  d3.geo.albersUsa = function() {
+    var lower48 = d3.geo.conicEqualArea().rotate([ 98, 0 ]).center([ 0, 38 ]).parallels([ 29.5, 45.5 ]);
+    var alaska = d3.geo.conicEqualArea().rotate([ 160, 0 ]).center([ 0, 60 ]).parallels([ 55, 65 ]);
+    var hawaii = d3.geo.conicEqualArea().rotate([ 160, 0 ]).center([ 0, 20 ]).parallels([ 8, 18 ]);
+    var puertoRico = d3.geo.conicEqualArea().rotate([ 60, 0 ]).center([ 0, 10 ]).parallels([ 8, 18 ]);
+    var alaskaInvert, hawaiiInvert, puertoRicoInvert;
+    function albersUsa(coordinates) {
+      return projection(coordinates)(coordinates);
+    }
+    function projection(point) {
+      var lon = point[0], lat = point[1];
+      return lat > 50 ? alaska : lon < -140 ? hawaii : lat < 21 ? puertoRico : lower48;
+    }
+    albersUsa.invert = function(coordinates) {
+      return alaskaInvert(coordinates) || hawaiiInvert(coordinates) || puertoRicoInvert(coordinates) || lower48.invert(coordinates);
+    };
+    albersUsa.scale = function(x) {
+      if (!arguments.length) return lower48.scale();
+      lower48.scale(x);
+      alaska.scale(x * .6);
+      hawaii.scale(x);
+      puertoRico.scale(x * 1.5);
+      return albersUsa.translate(lower48.translate());
+    };
+    albersUsa.translate = function(x) {
+      if (!arguments.length) return lower48.translate();
+      var dz = lower48.scale(), dx = x[0], dy = x[1];
+      lower48.translate(x);
+      alaska.translate([ dx - .4 * dz, dy + .17 * dz ]);
+      hawaii.translate([ dx - .19 * dz, dy + .2 * dz ]);
+      puertoRico.translate([ dx + .58 * dz, dy + .43 * dz ]);
+      alaskaInvert = d3_geo_albersUsaInvert(alaska, [ [ -180, 50 ], [ -130, 72 ] ]);
+      hawaiiInvert = d3_geo_albersUsaInvert(hawaii, [ [ -164, 18 ], [ -154, 24 ] ]);
+      puertoRicoInvert = d3_geo_albersUsaInvert(puertoRico, [ [ -67.5, 17.5 ], [ -65, 19 ] ]);
+      return albersUsa;
+    };
+    return albersUsa.scale(1e3);
+  };
+  function d3_geo_albersUsaInvert(projection, extent) {
+    var a = projection(extent[0]), b = projection([ .5 * (extent[0][0] + extent[1][0]), extent[0][1] ]), c = projection([ extent[1][0], extent[0][1] ]), d = projection(extent[1]);
+    var dya = b[1] - a[1], dxa = b[0] - a[0], dyb = c[1] - b[1], dxb = c[0] - b[0];
+    var ma = dya / dxa, mb = dyb / dxb;
+    var cx = .5 * (ma * mb * (a[1] - c[1]) + mb * (a[0] + b[0]) - ma * (b[0] + c[0])) / (mb - ma), cy = (.5 * (a[0] + b[0]) - cx) / ma + .5 * (a[1] + b[1]);
+    var dx0 = d[0] - cx, dy0 = d[1] - cy, dx1 = a[0] - cx, dy1 = a[1] - cy, r0 = dx0 * dx0 + dy0 * dy0, r1 = dx1 * dx1 + dy1 * dy1;
+    var a0 = Math.atan2(dy0, dx0), a1 = Math.atan2(dy1, dx1);
+    return function(coordinates) {
+      var dx = coordinates[0] - cx, dy = coordinates[1] - cy, r = dx * dx + dy * dy, a = Math.atan2(dy, dx);
+      if (r0 < r && r < r1 && a0 < a && a < a1) return projection.invert(coordinates);
+    };
+  }
+  var d3_geo_pathAreaSum, d3_geo_pathAreaPolygon, d3_geo_pathArea = {
+    point: d3_noop,
+    lineStart: d3_noop,
+    lineEnd: d3_noop,
+    polygonStart: function() {
+      d3_geo_pathAreaPolygon = 0;
+      d3_geo_pathArea.lineStart = d3_geo_pathAreaRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_pathArea.lineStart = d3_geo_pathArea.lineEnd = d3_geo_pathArea.point = d3_noop;
+      d3_geo_pathAreaSum += Math.abs(d3_geo_pathAreaPolygon / 2);
+    }
+  };
+  function d3_geo_pathAreaRingStart() {
+    var x00, y00, x0, y0;
+    d3_geo_pathArea.point = function(x, y) {
+      d3_geo_pathArea.point = nextPoint;
+      x00 = x0 = x, y00 = y0 = y;
+    };
+    function nextPoint(x, y) {
+      d3_geo_pathAreaPolygon += y0 * x - x0 * y;
+      x0 = x, y0 = y;
+    }
+    d3_geo_pathArea.lineEnd = function() {
+      nextPoint(x00, y00);
+    };
+  }
+  function d3_geo_pathBuffer() {
+    var pointCircle = d3_geo_pathCircle(4.5), buffer = [];
+    var stream = {
+      point: point,
+      lineStart: function() {
+        stream.point = pointLineStart;
+      },
+      lineEnd: lineEnd,
+      polygonStart: function() {
+        stream.lineEnd = lineEndPolygon;
+      },
+      polygonEnd: function() {
+        stream.lineEnd = lineEnd;
+        stream.point = point;
+      },
+      pointRadius: function(_) {
+        pointCircle = d3_geo_pathCircle(_);
+        return stream;
+      },
+      result: function() {
+        if (buffer.length) {
+          var result = buffer.join("");
+          buffer = [];
+          return result;
+        }
+      }
+    };
+    function point(x, y) {
+      buffer.push("M", x, ",", y, pointCircle);
+    }
+    function pointLineStart(x, y) {
+      buffer.push("M", x, ",", y);
+      stream.point = pointLine;
+    }
+    function pointLine(x, y) {
+      buffer.push("L", x, ",", y);
+    }
+    function lineEnd() {
+      stream.point = point;
+    }
+    function lineEndPolygon() {
+      buffer.push("Z");
+    }
+    return stream;
+  }
+  var d3_geo_pathCentroid = {
+    point: d3_geo_pathCentroidPoint,
+    lineStart: d3_geo_pathCentroidLineStart,
+    lineEnd: d3_geo_pathCentroidLineEnd,
+    polygonStart: function() {
+      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
+      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidLineStart;
+      d3_geo_pathCentroid.lineEnd = d3_geo_pathCentroidLineEnd;
+    }
+  };
+  function d3_geo_pathCentroidPoint(x, y) {
+    if (d3_geo_centroidDimension) return;
+    d3_geo_centroidX += x;
+    d3_geo_centroidY += y;
+    ++d3_geo_centroidZ;
+  }
+  function d3_geo_pathCentroidLineStart() {
+    var x0, y0;
+    if (d3_geo_centroidDimension !== 1) {
+      if (d3_geo_centroidDimension < 1) {
+        d3_geo_centroidDimension = 1;
+        d3_geo_centroidX = d3_geo_centroidY = d3_geo_centroidZ = 0;
+      } else return;
+    }
+    d3_geo_pathCentroid.point = function(x, y) {
+      d3_geo_pathCentroid.point = nextPoint;
+      x0 = x, y0 = y;
+    };
+    function nextPoint(x, y) {
+      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
+      d3_geo_centroidX += z * (x0 + x) / 2;
+      d3_geo_centroidY += z * (y0 + y) / 2;
+      d3_geo_centroidZ += z;
+      x0 = x, y0 = y;
+    }
+  }
+  function d3_geo_pathCentroidLineEnd() {
+    d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
+  }
+  function d3_geo_pathCentroidRingStart() {
+    var x00, y00, x0, y0;
+    if (d3_geo_centroidDimension < 2) {
+      d3_geo_centroidDimension = 2;
+      d3_geo_centroidX = d3_geo_centroidY = d3_geo_centroidZ = 0;
+    }
+    d3_geo_pathCentroid.point = function(x, y) {
+      d3_geo_pathCentroid.point = nextPoint;
+      x00 = x0 = x, y00 = y0 = y;
+    };
+    function nextPoint(x, y) {
+      var z = y0 * x - x0 * y;
+      d3_geo_centroidX += z * (x0 + x);
+      d3_geo_centroidY += z * (y0 + y);
+      d3_geo_centroidZ += z * 3;
+      x0 = x, y0 = y;
+    }
+    d3_geo_pathCentroid.lineEnd = function() {
+      nextPoint(x00, y00);
+    };
+  }
+  function d3_geo_pathContext(context) {
+    var pointRadius = 4.5;
+    var stream = {
+      point: point,
+      lineStart: function() {
+        stream.point = pointLineStart;
+      },
+      lineEnd: lineEnd,
+      polygonStart: function() {
+        stream.lineEnd = lineEndPolygon;
+      },
+      polygonEnd: function() {
+        stream.lineEnd = lineEnd;
+        stream.point = point;
+      },
+      pointRadius: function(_) {
+        pointRadius = _;
+        return stream;
+      },
+      result: d3_noop
+    };
+    function point(x, y) {
+      context.moveTo(x, y);
+      context.arc(x, y, pointRadius, 0, 2 * π);
+    }
+    function pointLineStart(x, y) {
+      context.moveTo(x, y);
+      stream.point = pointLine;
+    }
+    function pointLine(x, y) {
+      context.lineTo(x, y);
+    }
+    function lineEnd() {
+      stream.point = point;
+    }
+    function lineEndPolygon() {
+      context.closePath();
+    }
+    return stream;
+  }
+  d3.geo.path = function() {
+    var pointRadius = 4.5, projection, context, projectStream, contextStream;
+    function path(object) {
+      if (object) d3.geo.stream(object, projectStream(contextStream.pointRadius(typeof pointRadius === "function" ? +pointRadius.apply(this, arguments) : pointRadius)));
+      return contextStream.result();
+    }
+    path.area = function(object) {
+      d3_geo_pathAreaSum = 0;
+      d3.geo.stream(object, projectStream(d3_geo_pathArea));
+      return d3_geo_pathAreaSum;
+    };
+    path.centroid = function(object) {
+      d3_geo_centroidDimension = d3_geo_centroidX = d3_geo_centroidY = d3_geo_centroidZ = 0;
+      d3.geo.stream(object, projectStream(d3_geo_pathCentroid));
+      return d3_geo_centroidZ ? [ d3_geo_centroidX / d3_geo_centroidZ, d3_geo_centroidY / d3_geo_centroidZ ] : undefined;
+    };
+    path.bounds = function(object) {
+      return d3_geo_bounds(projectStream)(object);
+    };
+    path.projection = function(_) {
+      if (!arguments.length) return projection;
+      projectStream = (projection = _) ? _.stream || d3_geo_pathProjectStream(_) : d3_identity;
+      return path;
+    };
+    path.context = function(_) {
+      if (!arguments.length) return context;
+      contextStream = (context = _) == null ? new d3_geo_pathBuffer() : new d3_geo_pathContext(_);
+      return path;
+    };
+    path.pointRadius = function(_) {
+      if (!arguments.length) return pointRadius;
+      pointRadius = typeof _ === "function" ? _ : +_;
+      return path;
+    };
+    return path.projection(d3.geo.albersUsa()).context(null);
+  };
+  function d3_geo_pathCircle(radius) {
+    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + +2 * radius + "z";
+  }
+  function d3_geo_pathProjectStream(project) {
+    var resample = d3_geo_resample(function(λ, φ) {
+      return project([ λ * d3_degrees, φ * d3_degrees ]);
+    });
+    return function(stream) {
+      stream = resample(stream);
+      return {
+        point: function(λ, φ) {
+          stream.point(λ * d3_radians, φ * d3_radians);
+        },
+        sphere: function() {
+          stream.sphere();
+        },
+        lineStart: function() {
+          stream.lineStart();
+        },
+        lineEnd: function() {
+          stream.lineEnd();
+        },
+        polygonStart: function() {
+          stream.polygonStart();
+        },
+        polygonEnd: function() {
+          stream.polygonEnd();
+        }
+      };
+    };
+  }
+  d3.geo.albers = function() {
+    return d3.geo.conicEqualArea().parallels([ 29.5, 45.5 ]).rotate([ 98, 0 ]).center([ 0, 38 ]).scale(1e3);
+  };
+  function d3_geo_azimuthal(scale, angle) {
+    function azimuthal(λ, φ) {
+      var cosλ = Math.cos(λ), cosφ = Math.cos(φ), k = scale(cosλ * cosφ);
+      return [ k * cosφ * Math.sin(λ), k * Math.sin(φ) ];
+    }
+    azimuthal.invert = function(x, y) {
+      var ρ = Math.sqrt(x * x + y * y), c = angle(ρ), sinc = Math.sin(c), cosc = Math.cos(c);
+      return [ Math.atan2(x * sinc, ρ * cosc), Math.asin(ρ && y * sinc / ρ) ];
+    };
+    return azimuthal;
+  }
+  var d3_geo_azimuthalEqualArea = d3_geo_azimuthal(function(cosλcosφ) {
+    return Math.sqrt(2 / (1 + cosλcosφ));
+  }, function(ρ) {
+    return 2 * Math.asin(ρ / 2);
+  });
+  (d3.geo.azimuthalEqualArea = function() {
+    return d3_geo_projection(d3_geo_azimuthalEqualArea);
+  }).raw = d3_geo_azimuthalEqualArea;
+  var d3_geo_azimuthalEquidistant = d3_geo_azimuthal(function(cosλcosφ) {
+    var c = Math.acos(cosλcosφ);
+    return c && c / Math.sin(c);
+  }, d3_identity);
+  (d3.geo.azimuthalEquidistant = function() {
+    return d3_geo_projection(d3_geo_azimuthalEquidistant);
+  }).raw = d3_geo_azimuthalEquidistant;
+  function d3_geo_conicConformal(φ0, φ1) {
+    var cosφ0 = Math.cos(φ0), t = function(φ) {
+      return Math.tan(π / 4 + φ / 2);
+    }, n = φ0 === φ1 ? Math.sin(φ0) : Math.log(cosφ0 / Math.cos(φ1)) / Math.log(t(φ1) / t(φ0)), F = cosφ0 * Math.pow(t(φ0), n) / n;
+    if (!n) return d3_geo_mercator;
+    function forward(λ, φ) {
+      var ρ = Math.abs(Math.abs(φ) - π / 2) < ε ? 0 : F / Math.pow(t(φ), n);
+      return [ ρ * Math.sin(n * λ), F - ρ * Math.cos(n * λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = F - y, ρ = d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y);
+      return [ Math.atan2(x, ρ0_y) / n, 2 * Math.atan(Math.pow(F / ρ, 1 / n)) - π / 2 ];
+    };
+    return forward;
+  }
+  (d3.geo.conicConformal = function() {
+    return d3_geo_conic(d3_geo_conicConformal);
+  }).raw = d3_geo_conicConformal;
+  function d3_geo_conicEquidistant(φ0, φ1) {
+    var cosφ0 = Math.cos(φ0), n = φ0 === φ1 ? Math.sin(φ0) : (cosφ0 - Math.cos(φ1)) / (φ1 - φ0), G = cosφ0 / n + φ0;
+    if (Math.abs(n) < ε) return d3_geo_equirectangular;
+    function forward(λ, φ) {
+      var ρ = G - φ;
+      return [ ρ * Math.sin(n * λ), G - ρ * Math.cos(n * λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = G - y;
+      return [ Math.atan2(x, ρ0_y) / n, G - d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y) ];
+    };
+    return forward;
+  }
+  (d3.geo.conicEquidistant = function() {
+    return d3_geo_conic(d3_geo_conicEquidistant);
+  }).raw = d3_geo_conicEquidistant;
+  var d3_geo_gnomonic = d3_geo_azimuthal(function(cosλcosφ) {
+    return 1 / cosλcosφ;
+  }, Math.atan);
+  (d3.geo.gnomonic = function() {
+    return d3_geo_projection(d3_geo_gnomonic);
+  }).raw = d3_geo_gnomonic;
+  function d3_geo_mercator(λ, φ) {
+    return [ λ, Math.log(Math.tan(π / 4 + φ / 2)) ];
+  }
+  d3_geo_mercator.invert = function(x, y) {
+    return [ x, 2 * Math.atan(Math.exp(y)) - π / 2 ];
+  };
+  function d3_geo_mercatorProjection(project) {
+    var m = d3_geo_projection(project), scale = m.scale, translate = m.translate, clipExtent = m.clipExtent, clipAuto;
+    m.scale = function() {
+      var v = scale.apply(m, arguments);
+      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
+    };
+    m.translate = function() {
+      var v = translate.apply(m, arguments);
+      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
+    };
+    m.clipExtent = function(_) {
+      var v = clipExtent.apply(m, arguments);
+      if (v === m) {
+        if (clipAuto = _ == null) {
+          var k = π * scale(), t = translate();
+          clipExtent([ [ t[0] - k, t[1] - k ], [ t[0] + k, t[1] + k ] ]);
+        }
+      } else if (clipAuto) {
+        v = null;
+      }
+      return v;
+    };
+    return m.clipExtent(null);
+  }
+  (d3.geo.mercator = function() {
+    return d3_geo_mercatorProjection(d3_geo_mercator);
+  }).raw = d3_geo_mercator;
+  var d3_geo_orthographic = d3_geo_azimuthal(function() {
+    return 1;
+  }, Math.asin);
+  (d3.geo.orthographic = function() {
+    return d3_geo_projection(d3_geo_orthographic);
+  }).raw = d3_geo_orthographic;
+  var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) {
+    return 1 / (1 + cosλcosφ);
+  }, function(ρ) {
+    return 2 * Math.atan(ρ);
+  });
+  (d3.geo.stereographic = function() {
+    return d3_geo_projection(d3_geo_stereographic);
+  }).raw = d3_geo_stereographic;
+  function d3_geo_transverseMercator(λ, φ) {
+    var B = Math.cos(φ) * Math.sin(λ);
+    return [ Math.log((1 + B) / (1 - B)) / 2, Math.atan2(Math.tan(φ), Math.cos(λ)) ];
+  }
+  d3_geo_transverseMercator.invert = function(x, y) {
+    return [ Math.atan2(d3_sinh(x), Math.cos(y)), d3_asin(Math.sin(y) / d3_cosh(x)) ];
+  };
+  (d3.geo.transverseMercator = function() {
+    return d3_geo_mercatorProjection(d3_geo_transverseMercator);
+  }).raw = d3_geo_transverseMercator;
+  d3.geom = {};
+  d3.svg = {};
+  function d3_svg_line(projection) {
+    var x = d3_svg_lineX, y = d3_svg_lineY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;
+    function line(data) {
+      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);
+      function segment() {
+        segments.push("M", interpolate(projection(points), tension));
+      }
+      while (++i < n) {
+        if (defined.call(this, d = data[i], i)) {
+          points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);
+        } else if (points.length) {
+          segment();
+          points = [];
+        }
+      }
+      if (points.length) segment();
+      return segments.length ? segments.join("") : null;
+    }
+    line.x = function(_) {
+      if (!arguments.length) return x;
+      x = _;
+      return line;
+    };
+    line.y = function(_) {
+      if (!arguments.length) return y;
+      y = _;
+      return line;
+    };
+    line.defined = function(_) {
+      if (!arguments.length) return defined;
+      defined = _;
+      return line;
+    };
+    line.interpolate = function(_) {
+      if (!arguments.length) return interpolateKey;
+      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
+      return line;
+    };
+    line.tension = function(_) {
+      if (!arguments.length) return tension;
+      tension = _;
+      return line;
+    };
+    return line;
+  }
   d3.svg.line = function() {
     return d3_svg_line(d3_identity);
   };
+  function d3_svg_lineX(d) {
+    return d[0];
+  }
+  function d3_svg_lineY(d) {
+    return d[1];
+  }
   var d3_svg_lineInterpolators = d3.map({
     linear: d3_svg_lineLinear,
     "linear-closed": d3_svg_lineLinearClosed,
@@ -4219,704 +3750,1257 @@
     value.key = key;
     value.closed = /-closed$/.test(key);
   });
-  var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];
-  d3.svg.line.radial = function() {
-    var line = d3_svg_line(d3_svg_lineRadial);
-    line.radius = line.x, delete line.x;
-    line.angle = line.y, delete line.y;
-    return line;
-  };
-  d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
-  d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
-  d3.svg.area = function() {
-    return d3_svg_area(d3_identity);
-  };
-  d3.svg.area.radial = function() {
-    var area = d3_svg_area(d3_svg_lineRadial);
-    area.radius = area.x, delete area.x;
-    area.innerRadius = area.x0, delete area.x0;
-    area.outerRadius = area.x1, delete area.x1;
-    area.angle = area.y, delete area.y;
-    area.startAngle = area.y0, delete area.y0;
-    area.endAngle = area.y1, delete area.y1;
-    return area;
-  };
-  d3.svg.chord = function() {
-    function chord(d, i) {
-      var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);
-      return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z";
+  function d3_svg_lineLinear(points) {
+    return points.join("L");
+  }
+  function d3_svg_lineLinearClosed(points) {
+    return d3_svg_lineLinear(points) + "Z";
+  }
+  function d3_svg_lineStepBefore(points) {
+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
+    while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
+    return path.join("");
+  }
+  function d3_svg_lineStepAfter(points) {
+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
+    while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
+    return path.join("");
+  }
+  function d3_svg_lineCardinalOpen(points, tension) {
+    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1), d3_svg_lineCardinalTangents(points, tension));
+  }
+  function d3_svg_lineCardinalClosed(points, tension) {
+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite((points.push(points[0]),
+    points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));
+  }
+  function d3_svg_lineCardinal(points, tension) {
+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));
+  }
+  function d3_svg_lineHermite(points, tangents) {
+    if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {
+      return d3_svg_lineLinear(points);
     }
-    function subgroup(self, f, d, i) {
-      var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset, a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
-      return {
-        r: r,
-        a0: a0,
-        a1: a1,
-        p0: [ r * Math.cos(a0), r * Math.sin(a0) ],
-        p1: [ r * Math.cos(a1), r * Math.sin(a1) ]
+    var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;
+    if (quad) {
+      path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1];
+      p0 = points[1];
+      pi = 2;
+    }
+    if (tangents.length > 1) {
+      t = tangents[1];
+      p = points[pi];
+      pi++;
+      path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
+      for (var i = 2; i < tangents.length; i++, pi++) {
+        p = points[pi];
+        t = tangents[i];
+        path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
+      }
+    }
+    if (quad) {
+      var lp = points[pi];
+      path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1];
+    }
+    return path;
+  }
+  function d3_svg_lineCardinalTangents(points, tension) {
+    var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;
+    while (++i < n) {
+      p0 = p1;
+      p1 = p2;
+      p2 = points[i];
+      tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);
+    }
+    return tangents;
+  }
+  function d3_svg_lineBasis(points) {
+    if (points.length < 3) return d3_svg_lineLinear(points);
+    var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0 ];
+    d3_svg_lineBasisBezier(path, px, py);
+    while (++i < n) {
+      pi = points[i];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    i = -1;
+    while (++i < 2) {
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    return path.join("");
+  }
+  function d3_svg_lineBasisOpen(points) {
+    if (points.length < 4) return d3_svg_lineLinear(points);
+    var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];
+    while (++i < 3) {
+      pi = points[i];
+      px.push(pi[0]);
+      py.push(pi[1]);
+    }
+    path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
+    --i;
+    while (++i < n) {
+      pi = points[i];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    return path.join("");
+  }
+  function d3_svg_lineBasisClosed(points) {
+    var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];
+    while (++i < 4) {
+      pi = points[i % n];
+      px.push(pi[0]);
+      py.push(pi[1]);
+    }
+    path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
+    --i;
+    while (++i < m) {
+      pi = points[i % n];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    return path.join("");
+  }
+  function d3_svg_lineBundle(points, tension) {
+    var n = points.length - 1;
+    if (n) {
+      var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;
+      while (++i <= n) {
+        p = points[i];
+        t = i / n;
+        p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
+        p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
+      }
+    }
+    return d3_svg_lineBasis(points);
+  }
+  function d3_svg_lineDot4(a, b) {
+    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
+  }
+  var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];
+  function d3_svg_lineBasisBezier(path, x, y) {
+    path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
+  }
+  function d3_svg_lineSlope(p0, p1) {
+    return (p1[1] - p0[1]) / (p1[0] - p0[0]);
+  }
+  function d3_svg_lineFiniteDifferences(points) {
+    var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);
+    while (++i < j) {
+      m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;
+    }
+    m[i] = d;
+    return m;
+  }
+  function d3_svg_lineMonotoneTangents(points) {
+    var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;
+    while (++i < j) {
+      d = d3_svg_lineSlope(points[i], points[i + 1]);
+      if (Math.abs(d) < 1e-6) {
+        m[i] = m[i + 1] = 0;
+      } else {
+        a = m[i] / d;
+        b = m[i + 1] / d;
+        s = a * a + b * b;
+        if (s > 9) {
+          s = d * 3 / Math.sqrt(s);
+          m[i] = s * a;
+          m[i + 1] = s * b;
+        }
+      }
+    }
+    i = -1;
+    while (++i <= j) {
+      s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));
+      tangents.push([ s || 0, m[i] * s || 0 ]);
+    }
+    return tangents;
+  }
+  function d3_svg_lineMonotone(points) {
+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
+  }
+  d3.geom.hull = function(vertices) {
+    var x = d3_svg_lineX, y = d3_svg_lineY;
+    if (arguments.length) return hull(vertices);
+    function hull(data) {
+      if (data.length < 3) return [];
+      var fx = d3_functor(x), fy = d3_functor(y), n = data.length, vertices, plen = n - 1, points = [], stack = [], d, i, j, h = 0, x1, y1, x2, y2, u, v, a, sp;
+      if (fx === d3_svg_lineX && y === d3_svg_lineY) vertices = data; else for (i = 0,
+      vertices = []; i < n; ++i) {
+        vertices.push([ +fx.call(this, d = data[i], i), +fy.call(this, d, i) ]);
+      }
+      for (i = 1; i < n; ++i) {
+        if (vertices[i][1] < vertices[h][1]) {
+          h = i;
+        } else if (vertices[i][1] == vertices[h][1]) {
+          h = vertices[i][0] < vertices[h][0] ? i : h;
+        }
+      }
+      for (i = 0; i < n; ++i) {
+        if (i === h) continue;
+        y1 = vertices[i][1] - vertices[h][1];
+        x1 = vertices[i][0] - vertices[h][0];
+        points.push({
+          angle: Math.atan2(y1, x1),
+          index: i
+        });
+      }
+      points.sort(function(a, b) {
+        return a.angle - b.angle;
+      });
+      a = points[0].angle;
+      v = points[0].index;
+      u = 0;
+      for (i = 1; i < plen; ++i) {
+        j = points[i].index;
+        if (a == points[i].angle) {
+          x1 = vertices[v][0] - vertices[h][0];
+          y1 = vertices[v][1] - vertices[h][1];
+          x2 = vertices[j][0] - vertices[h][0];
+          y2 = vertices[j][1] - vertices[h][1];
+          if (x1 * x1 + y1 * y1 >= x2 * x2 + y2 * y2) {
+            points[i].index = -1;
+          } else {
+            points[u].index = -1;
+            a = points[i].angle;
+            u = i;
+            v = j;
+          }
+        } else {
+          a = points[i].angle;
+          u = i;
+          v = j;
+        }
+      }
+      stack.push(h);
+      for (i = 0, j = 0; i < 2; ++j) {
+        if (points[j].index !== -1) {
+          stack.push(points[j].index);
+          i++;
+        }
+      }
+      sp = stack.length;
+      for (;j < plen; ++j) {
+        if (points[j].index === -1) continue;
+        while (!d3_geom_hullCCW(stack[sp - 2], stack[sp - 1], points[j].index, vertices)) {
+          --sp;
+        }
+        stack[sp++] = points[j].index;
+      }
+      var poly = [];
+      for (i = 0; i < sp; ++i) {
+        poly.push(data[stack[i]]);
+      }
+      return poly;
+    }
+    hull.x = function(_) {
+      return arguments.length ? (x = _, hull) : x;
+    };
+    hull.y = function(_) {
+      return arguments.length ? (y = _, hull) : y;
+    };
+    return hull;
+  };
+  function d3_geom_hullCCW(i1, i2, i3, v) {
+    var t, a, b, c, d, e, f;
+    t = v[i1];
+    a = t[0];
+    b = t[1];
+    t = v[i2];
+    c = t[0];
+    d = t[1];
+    t = v[i3];
+    e = t[0];
+    f = t[1];
+    return (f - b) * (c - a) - (d - b) * (e - a) > 0;
+  }
+  d3.geom.polygon = function(coordinates) {
+    coordinates.area = function() {
+      var i = 0, n = coordinates.length, area = coordinates[n - 1][1] * coordinates[0][0] - coordinates[n - 1][0] * coordinates[0][1];
+      while (++i < n) {
+        area += coordinates[i - 1][1] * coordinates[i][0] - coordinates[i - 1][0] * coordinates[i][1];
+      }
+      return area * .5;
+    };
+    coordinates.centroid = function(k) {
+      var i = -1, n = coordinates.length, x = 0, y = 0, a, b = coordinates[n - 1], c;
+      if (!arguments.length) k = -1 / (6 * coordinates.area());
+      while (++i < n) {
+        a = b;
+        b = coordinates[i];
+        c = a[0] * b[1] - b[0] * a[1];
+        x += (a[0] + b[0]) * c;
+        y += (a[1] + b[1]) * c;
+      }
+      return [ x * k, y * k ];
+    };
+    coordinates.clip = function(subject) {
+      var input, i = -1, n = coordinates.length, j, m, a = coordinates[n - 1], b, c, d;
+      while (++i < n) {
+        input = subject.slice();
+        subject.length = 0;
+        b = coordinates[i];
+        c = input[(m = input.length) - 1];
+        j = -1;
+        while (++j < m) {
+          d = input[j];
+          if (d3_geom_polygonInside(d, a, b)) {
+            if (!d3_geom_polygonInside(c, a, b)) {
+              subject.push(d3_geom_polygonIntersect(c, d, a, b));
+            }
+            subject.push(d);
+          } else if (d3_geom_polygonInside(c, a, b)) {
+            subject.push(d3_geom_polygonIntersect(c, d, a, b));
+          }
+          c = d;
+        }
+        a = b;
+      }
+      return subject;
+    };
+    return coordinates;
+  };
+  function d3_geom_polygonInside(p, a, b) {
+    return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
+  }
+  function d3_geom_polygonIntersect(c, d, a, b) {
+    var x1 = c[0], x3 = a[0], x21 = d[0] - x1, x43 = b[0] - x3, y1 = c[1], y3 = a[1], y21 = d[1] - y1, y43 = b[1] - y3, ua = (x43 * (y1 - y3) - y43 * (x1 - x3)) / (y43 * x21 - x43 * y21);
+    return [ x1 + ua * x21, y1 + ua * y21 ];
+  }
+  d3.geom.delaunay = function(vertices) {
+    var edges = vertices.map(function() {
+      return [];
+    }), triangles = [];
+    d3_geom_voronoiTessellate(vertices, function(e) {
+      edges[e.region.l.index].push(vertices[e.region.r.index]);
+    });
+    edges.forEach(function(edge, i) {
+      var v = vertices[i], cx = v[0], cy = v[1];
+      edge.forEach(function(v) {
+        v.angle = Math.atan2(v[0] - cx, v[1] - cy);
+      });
+      edge.sort(function(a, b) {
+        return a.angle - b.angle;
+      });
+      for (var j = 0, m = edge.length - 1; j < m; j++) {
+        triangles.push([ v, edge[j], edge[j + 1] ]);
+      }
+    });
+    return triangles;
+  };
+  d3.geom.voronoi = function(points) {
+    var size = null, x = d3_svg_lineX, y = d3_svg_lineY, clip;
+    if (arguments.length) return voronoi(points);
+    function voronoi(data) {
+      var points, polygons = data.map(function() {
+        return [];
+      }), fx = d3_functor(x), fy = d3_functor(y), d, i, n = data.length, Z = 1e6;
+      if (fx === d3_svg_lineX && fy === d3_svg_lineY) points = data; else for (points = [],
+      i = 0; i < n; ++i) {
+        points.push([ +fx.call(this, d = data[i], i), +fy.call(this, d, i) ]);
+      }
+      d3_geom_voronoiTessellate(points, function(e) {
+        var s1, s2, x1, x2, y1, y2;
+        if (e.a === 1 && e.b >= 0) {
+          s1 = e.ep.r;
+          s2 = e.ep.l;
+        } else {
+          s1 = e.ep.l;
+          s2 = e.ep.r;
+        }
+        if (e.a === 1) {
+          y1 = s1 ? s1.y : -Z;
+          x1 = e.c - e.b * y1;
+          y2 = s2 ? s2.y : Z;
+          x2 = e.c - e.b * y2;
+        } else {
+          x1 = s1 ? s1.x : -Z;
+          y1 = e.c - e.a * x1;
+          x2 = s2 ? s2.x : Z;
+          y2 = e.c - e.a * x2;
+        }
+        var v1 = [ x1, y1 ], v2 = [ x2, y2 ];
+        polygons[e.region.l.index].push(v1, v2);
+        polygons[e.region.r.index].push(v1, v2);
+      });
+      polygons = polygons.map(function(polygon, i) {
+        var cx = points[i][0], cy = points[i][1], angle = polygon.map(function(v) {
+          return Math.atan2(v[0] - cx, v[1] - cy);
+        }), order = d3.range(polygon.length).sort(function(a, b) {
+          return angle[a] - angle[b];
+        });
+        return order.filter(function(d, i) {
+          return !i || angle[d] - angle[order[i - 1]] > ε;
+        }).map(function(d) {
+          return polygon[d];
+        });
+      });
+      polygons.forEach(function(polygon, i) {
+        var n = polygon.length;
+        if (!n) return polygon.push([ -Z, -Z ], [ -Z, Z ], [ Z, Z ], [ Z, -Z ]);
+        if (n > 2) return;
+        var p0 = points[i], p1 = polygon[0], p2 = polygon[1], x0 = p0[0], y0 = p0[1], x1 = p1[0], y1 = p1[1], x2 = p2[0], y2 = p2[1], dx = Math.abs(x2 - x1), dy = y2 - y1;
+        if (Math.abs(dy) < ε) {
+          var y = y0 < y1 ? -Z : Z;
+          polygon.push([ -Z, y ], [ Z, y ]);
+        } else if (dx < ε) {
+          var x = x0 < x1 ? -Z : Z;
+          polygon.push([ x, -Z ], [ x, Z ]);
+        } else {
+          var y = (x2 - x1) * (y1 - y0) < (x1 - x0) * (y2 - y1) ? Z : -Z, z = Math.abs(dy) - dx;
+          if (Math.abs(z) < ε) {
+            polygon.push([ dy < 0 ? y : -y, y ]);
+          } else {
+            if (z > 0) y *= -1;
+            polygon.push([ -Z, y ], [ Z, y ]);
+          }
+        }
+      });
+      if (clip) for (i = 0; i < n; ++i) clip(polygons[i]);
+      for (i = 0; i < n; ++i) polygons[i].point = data[i];
+      return polygons;
+    }
+    voronoi.x = function(_) {
+      return arguments.length ? (x = _, voronoi) : x;
+    };
+    voronoi.y = function(_) {
+      return arguments.length ? (y = _, voronoi) : y;
+    };
+    voronoi.size = function(_) {
+      if (!arguments.length) return size;
+      if (_ == null) {
+        clip = null;
+      } else {
+        size = [ +_[0], +_[1] ];
+        clip = d3.geom.polygon([ [ 0, 0 ], [ 0, size[1] ], size, [ size[0], 0 ] ]).clip;
+      }
+      return voronoi;
+    };
+    voronoi.links = function(data) {
+      var points, graph = data.map(function() {
+        return [];
+      }), links = [], fx = d3_functor(x), fy = d3_functor(y), d, i, n = data.length;
+      if (fx === d3_svg_lineX && fy === d3_svg_lineY) points = data; else for (i = 0; i < n; ++i) {
+        points.push([ +fx.call(this, d = data[i], i), +fy.call(this, d, i) ]);
+      }
+      d3_geom_voronoiTessellate(points, function(e) {
+        var l = e.region.l.index, r = e.region.r.index;
+        if (graph[l][r]) return;
+        graph[l][r] = graph[r][l] = true;
+        links.push({
+          source: data[l],
+          target: data[r]
+        });
+      });
+      return links;
+    };
+    voronoi.triangles = function(data) {
+      if (x === d3_svg_lineX && y === d3_svg_lineY) return d3.geom.delaunay(data);
+      var points, point, fx = d3_functor(x), fy = d3_functor(y), d, i, n;
+      for (i = 0, points = [], n = data.length; i < n; ++i) {
+        point = [ +fx.call(this, d = data[i], i), +fy.call(this, d, i) ];
+        point.data = d;
+        points.push(point);
+      }
+      return d3.geom.delaunay(points).map(function(triangle) {
+        return triangle.map(function(point) {
+          return point.data;
+        });
+      });
+    };
+    return voronoi;
+  };
+  var d3_geom_voronoiOpposite = {
+    l: "r",
+    r: "l"
+  };
+  function d3_geom_voronoiTessellate(points, callback) {
+    var Sites = {
+      list: points.map(function(v, i) {
+        return {
+          index: i,
+          x: v[0],
+          y: v[1]
+        };
+      }).sort(function(a, b) {
+        return a.y < b.y ? -1 : a.y > b.y ? 1 : a.x < b.x ? -1 : a.x > b.x ? 1 : 0;
+      }),
+      bottomSite: null
+    };
+    var EdgeList = {
+      list: [],
+      leftEnd: null,
+      rightEnd: null,
+      init: function() {
+        EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l");
+        EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l");
+        EdgeList.leftEnd.r = EdgeList.rightEnd;
+        EdgeList.rightEnd.l = EdgeList.leftEnd;
+        EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd);
+      },
+      createHalfEdge: function(edge, side) {
+        return {
+          edge: edge,
+          side: side,
+          vertex: null,
+          l: null,
+          r: null
+        };
+      },
+      insert: function(lb, he) {
+        he.l = lb;
+        he.r = lb.r;
+        lb.r.l = he;
+        lb.r = he;
+      },
+      leftBound: function(p) {
+        var he = EdgeList.leftEnd;
+        do {
+          he = he.r;
+        } while (he != EdgeList.rightEnd && Geom.rightOf(he, p));
+        he = he.l;
+        return he;
+      },
+      del: function(he) {
+        he.l.r = he.r;
+        he.r.l = he.l;
+        he.edge = null;
+      },
+      right: function(he) {
+        return he.r;
+      },
+      left: function(he) {
+        return he.l;
+      },
+      leftRegion: function(he) {
+        return he.edge == null ? Sites.bottomSite : he.edge.region[he.side];
+      },
+      rightRegion: function(he) {
+        return he.edge == null ? Sites.bottomSite : he.edge.region[d3_geom_voronoiOpposite[he.side]];
+      }
+    };
+    var Geom = {
+      bisect: function(s1, s2) {
+        var newEdge = {
+          region: {
+            l: s1,
+            r: s2
+          },
+          ep: {
+            l: null,
+            r: null
+          }
+        };
+        var dx = s2.x - s1.x, dy = s2.y - s1.y, adx = dx > 0 ? dx : -dx, ady = dy > 0 ? dy : -dy;
+        newEdge.c = s1.x * dx + s1.y * dy + (dx * dx + dy * dy) * .5;
+        if (adx > ady) {
+          newEdge.a = 1;
+          newEdge.b = dy / dx;
+          newEdge.c /= dx;
+        } else {
+          newEdge.b = 1;
+          newEdge.a = dx / dy;
+          newEdge.c /= dy;
+        }
+        return newEdge;
+      },
+      intersect: function(el1, el2) {
+        var e1 = el1.edge, e2 = el2.edge;
+        if (!e1 || !e2 || e1.region.r == e2.region.r) {
+          return null;
+        }
+        var d = e1.a * e2.b - e1.b * e2.a;
+        if (Math.abs(d) < 1e-10) {
+          return null;
+        }
+        var xint = (e1.c * e2.b - e2.c * e1.b) / d, yint = (e2.c * e1.a - e1.c * e2.a) / d, e1r = e1.region.r, e2r = e2.region.r, el, e;
+        if (e1r.y < e2r.y || e1r.y == e2r.y && e1r.x < e2r.x) {
+          el = el1;
+          e = e1;
+        } else {
+          el = el2;
+          e = e2;
+        }
+        var rightOfSite = xint >= e.region.r.x;
+        if (rightOfSite && el.side === "l" || !rightOfSite && el.side === "r") {
+          return null;
+        }
+        return {
+          x: xint,
+          y: yint
+        };
+      },
+      rightOf: function(he, p) {
+        var e = he.edge, topsite = e.region.r, rightOfSite = p.x > topsite.x;
+        if (rightOfSite && he.side === "l") {
+          return 1;
+        }
+        if (!rightOfSite && he.side === "r") {
+          return 0;
+        }
+        if (e.a === 1) {
+          var dyp = p.y - topsite.y, dxp = p.x - topsite.x, fast = 0, above = 0;
+          if (!rightOfSite && e.b < 0 || rightOfSite && e.b >= 0) {
+            above = fast = dyp >= e.b * dxp;
+          } else {
+            above = p.x + p.y * e.b > e.c;
+            if (e.b < 0) {
+              above = !above;
+            }
+            if (!above) {
+              fast = 1;
+            }
+          }
+          if (!fast) {
+            var dxs = topsite.x - e.region.l.x;
+            above = e.b * (dxp * dxp - dyp * dyp) < dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b);
+            if (e.b < 0) {
+              above = !above;
+            }
+          }
+        } else {
+          var yl = e.c - e.a * p.x, t1 = p.y - yl, t2 = p.x - topsite.x, t3 = yl - topsite.y;
+          above = t1 * t1 > t2 * t2 + t3 * t3;
+        }
+        return he.side === "l" ? above : !above;
+      },
+      endPoint: function(edge, side, site) {
+        edge.ep[side] = site;
+        if (!edge.ep[d3_geom_voronoiOpposite[side]]) return;
+        callback(edge);
+      },
+      distance: function(s, t) {
+        var dx = s.x - t.x, dy = s.y - t.y;
+        return Math.sqrt(dx * dx + dy * dy);
+      }
+    };
+    var EventQueue = {
+      list: [],
+      insert: function(he, site, offset) {
+        he.vertex = site;
+        he.ystar = site.y + offset;
+        for (var i = 0, list = EventQueue.list, l = list.length; i < l; i++) {
+          var next = list[i];
+          if (he.ystar > next.ystar || he.ystar == next.ystar && site.x > next.vertex.x) {
+            continue;
+          } else {
+            break;
+          }
+        }
+        list.splice(i, 0, he);
+      },
+      del: function(he) {
+        for (var i = 0, ls = EventQueue.list, l = ls.length; i < l && ls[i] != he; ++i) {}
+        ls.splice(i, 1);
+      },
+      empty: function() {
+        return EventQueue.list.length === 0;
+      },
+      nextEvent: function(he) {
+        for (var i = 0, ls = EventQueue.list, l = ls.length; i < l; ++i) {
+          if (ls[i] == he) return ls[i + 1];
+        }
+        return null;
+      },
+      min: function() {
+        var elem = EventQueue.list[0];
+        return {
+          x: elem.vertex.x,
+          y: elem.ystar
+        };
+      },
+      extractMin: function() {
+        return EventQueue.list.shift();
+      }
+    };
+    EdgeList.init();
+    Sites.bottomSite = Sites.list.shift();
+    var newSite = Sites.list.shift(), newIntStar;
+    var lbnd, rbnd, llbnd, rrbnd, bisector;
+    var bot, top, temp, p, v;
+    var e, pm;
+    while (true) {
+      if (!EventQueue.empty()) {
+        newIntStar = EventQueue.min();
+      }
+      if (newSite && (EventQueue.empty() || newSite.y < newIntStar.y || newSite.y == newIntStar.y && newSite.x < newIntStar.x)) {
+        lbnd = EdgeList.leftBound(newSite);
+        rbnd = EdgeList.right(lbnd);
+        bot = EdgeList.rightRegion(lbnd);
+        e = Geom.bisect(bot, newSite);
+        bisector = EdgeList.createHalfEdge(e, "l");
+        EdgeList.insert(lbnd, bisector);
+        p = Geom.intersect(lbnd, bisector);
+        if (p) {
+          EventQueue.del(lbnd);
+          EventQueue.insert(lbnd, p, Geom.distance(p, newSite));
+        }
+        lbnd = bisector;
+        bisector = EdgeList.createHalfEdge(e, "r");
+        EdgeList.insert(lbnd, bisector);
+        p = Geom.intersect(bisector, rbnd);
+        if (p) {
+          EventQueue.insert(bisector, p, Geom.distance(p, newSite));
+        }
+        newSite = Sites.list.shift();
+      } else if (!EventQueue.empty()) {
+        lbnd = EventQueue.extractMin();
+        llbnd = EdgeList.left(lbnd);
+        rbnd = EdgeList.right(lbnd);
+        rrbnd = EdgeList.right(rbnd);
+        bot = EdgeList.leftRegion(lbnd);
+        top = EdgeList.rightRegion(rbnd);
+        v = lbnd.vertex;
+        Geom.endPoint(lbnd.edge, lbnd.side, v);
+        Geom.endPoint(rbnd.edge, rbnd.side, v);
+        EdgeList.del(lbnd);
+        EventQueue.del(rbnd);
+        EdgeList.del(rbnd);
+        pm = "l";
+        if (bot.y > top.y) {
+          temp = bot;
+          bot = top;
+          top = temp;
+          pm = "r";
+        }
+        e = Geom.bisect(bot, top);
+        bisector = EdgeList.createHalfEdge(e, pm);
+        EdgeList.insert(llbnd, bisector);
+        Geom.endPoint(e, d3_geom_voronoiOpposite[pm], v);
+        p = Geom.intersect(llbnd, bisector);
+        if (p) {
+          EventQueue.del(llbnd);
+          EventQueue.insert(llbnd, p, Geom.distance(p, bot));
+        }
+        p = Geom.intersect(bisector, rrbnd);
+        if (p) {
+          EventQueue.insert(bisector, p, Geom.distance(p, bot));
+        }
+      } else {
+        break;
+      }
+    }
+    for (lbnd = EdgeList.right(EdgeList.leftEnd); lbnd != EdgeList.rightEnd; lbnd = EdgeList.right(lbnd)) {
+      callback(lbnd.edge);
+    }
+  }
+  d3.geom.quadtree = function(points, x1, y1, x2, y2) {
+    var x = d3_svg_lineX, y = d3_svg_lineY, compat;
+    if (compat = arguments.length) {
+      x = d3_geom_quadtreeCompatX;
+      y = d3_geom_quadtreeCompatY;
+      if (compat === 3) {
+        y2 = y1;
+        x2 = x1;
+        y1 = x1 = 0;
+      }
+      return quadtree(points);
+    }
+    function quadtree(data) {
+      var d, fx = d3_functor(x), fy = d3_functor(y), xs, ys, i, n, x1_, y1_, x2_, y2_;
+      if (x1 != null) {
+        x1_ = x1, y1_ = y1, x2_ = x2, y2_ = y2;
+      } else {
+        x2_ = y2_ = -(x1_ = y1_ = Infinity);
+        xs = [], ys = [];
+        n = data.length;
+        if (compat) for (i = 0; i < n; ++i) {
+          d = data[i];
+          if (d.x < x1_) x1_ = d.x;
+          if (d.y < y1_) y1_ = d.y;
+          if (d.x > x2_) x2_ = d.x;
+          if (d.y > y2_) y2_ = d.y;
+          xs.push(d.x);
+          ys.push(d.y);
+        } else for (i = 0; i < n; ++i) {
+          var x_ = +fx(d = data[i], i), y_ = +fy(d, i);
+          if (x_ < x1_) x1_ = x_;
+          if (y_ < y1_) y1_ = y_;
+          if (x_ > x2_) x2_ = x_;
+          if (y_ > y2_) y2_ = y_;
+          xs.push(x_);
+          ys.push(y_);
+        }
+      }
+      var dx = x2_ - x1_, dy = y2_ - y1_;
+      if (dx > dy) y2_ = y1_ + dx; else x2_ = x1_ + dy;
+      function insert(n, d, x, y, x1, y1, x2, y2) {
+        if (isNaN(x) || isNaN(y)) return;
+        if (n.leaf) {
+          var nx = n.x, ny = n.y;
+          if (nx != null) {
+            if (Math.abs(nx - x) + Math.abs(ny - y) < .01) {
+              insertChild(n, d, x, y, x1, y1, x2, y2);
+            } else {
+              var nPoint = n.point;
+              n.x = n.y = n.point = null;
+              insertChild(n, nPoint, nx, ny, x1, y1, x2, y2);
+              insertChild(n, d, x, y, x1, y1, x2, y2);
+            }
+          } else {
+            n.x = x, n.y = y, n.point = d;
+          }
+        } else {
+          insertChild(n, d, x, y, x1, y1, x2, y2);
+        }
+      }
+      function insertChild(n, d, x, y, x1, y1, x2, y2) {
+        var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, right = x >= sx, bottom = y >= sy, i = (bottom << 1) + right;
+        n.leaf = false;
+        n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
+        if (right) x1 = sx; else x2 = sx;
+        if (bottom) y1 = sy; else y2 = sy;
+        insert(n, d, x, y, x1, y1, x2, y2);
+      }
+      var root = d3_geom_quadtreeNode();
+      root.add = function(d) {
+        insert(root, d, +fx(d, ++i), +fy(d, i), x1_, y1_, x2_, y2_);
+      };
+      root.visit = function(f) {
+        d3_geom_quadtreeVisit(f, root, x1_, y1_, x2_, y2_);
+      };
+      i = -1;
+      if (x1 == null) {
+        while (++i < n) {
+          insert(root, data[i], xs[i], ys[i], x1_, y1_, x2_, y2_);
+        }
+        --i;
+      } else data.forEach(root.add);
+      xs = ys = data = d = null;
+      return root;
+    }
+    quadtree.x = function(_) {
+      return arguments.length ? (x = _, quadtree) : x;
+    };
+    quadtree.y = function(_) {
+      return arguments.length ? (y = _, quadtree) : y;
+    };
+    quadtree.size = function(_) {
+      if (!arguments.length) return x1 == null ? null : [ x2, y2 ];
+      if (_ == null) {
+        x1 = y1 = x2 = y2 = null;
+      } else {
+        x1 = y1 = 0;
+        x2 = +_[0], y2 = +_[1];
+      }
+      return quadtree;
+    };
+    return quadtree;
+  };
+  function d3_geom_quadtreeCompatX(d) {
+    return d.x;
+  }
+  function d3_geom_quadtreeCompatY(d) {
+    return d.y;
+  }
+  function d3_geom_quadtreeNode() {
+    return {
+      leaf: true,
+      nodes: [],
+      point: null,
+      x: null,
+      y: null
+    };
+  }
+  function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
+    if (!f(node, x1, y1, x2, y2)) {
+      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;
+      if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
+      if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
+      if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
+      if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
+    }
+  }
+  d3.interpolateRgb = d3_interpolateRgb;
+  function d3_interpolateRgb(a, b) {
+    a = d3.rgb(a);
+    b = d3.rgb(b);
+    var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;
+    return function(t) {
+      return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));
+    };
+  }
+  d3.transform = function(string) {
+    var g = d3_document.createElementNS(d3.ns.prefix.svg, "g");
+    return (d3.transform = function(string) {
+      g.setAttribute("transform", string);
+      var t = g.transform.baseVal.consolidate();
+      return new d3_transform(t ? t.matrix : d3_transformIdentity);
+    })(string);
+  };
+  function d3_transform(m) {
+    var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
+    if (r0[0] * r1[1] < r1[0] * r0[1]) {
+      r0[0] *= -1;
+      r0[1] *= -1;
+      kx *= -1;
+      kz *= -1;
+    }
+    this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_degrees;
+    this.translate = [ m.e, m.f ];
+    this.scale = [ kx, ky ];
+    this.skew = ky ? Math.atan2(kz, ky) * d3_degrees : 0;
+  }
+  d3_transform.prototype.toString = function() {
+    return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";
+  };
+  function d3_transformDot(a, b) {
+    return a[0] * b[0] + a[1] * b[1];
+  }
+  function d3_transformNormalize(a) {
+    var k = Math.sqrt(d3_transformDot(a, a));
+    if (k) {
+      a[0] /= k;
+      a[1] /= k;
+    }
+    return k;
+  }
+  function d3_transformCombine(a, b, k) {
+    a[0] += k * b[0];
+    a[1] += k * b[1];
+    return a;
+  }
+  var d3_transformIdentity = {
+    a: 1,
+    b: 0,
+    c: 0,
+    d: 1,
+    e: 0,
+    f: 0
+  };
+  d3.interpolateNumber = d3_interpolateNumber;
+  function d3_interpolateNumber(a, b) {
+    b -= a;
+    return function(t) {
+      return a + b * t;
+    };
+  }
+  d3.interpolateTransform = d3_interpolateTransform;
+  function d3_interpolateTransform(a, b) {
+    var s = [], q = [], n, A = d3.transform(a), B = d3.transform(b), ta = A.translate, tb = B.translate, ra = A.rotate, rb = B.rotate, wa = A.skew, wb = B.skew, ka = A.scale, kb = B.scale;
+    if (ta[0] != tb[0] || ta[1] != tb[1]) {
+      s.push("translate(", null, ",", null, ")");
+      q.push({
+        i: 1,
+        x: d3_interpolateNumber(ta[0], tb[0])
+      }, {
+        i: 3,
+        x: d3_interpolateNumber(ta[1], tb[1])
+      });
+    } else if (tb[0] || tb[1]) {
+      s.push("translate(" + tb + ")");
+    } else {
+      s.push("");
+    }
+    if (ra != rb) {
+      if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;
+      q.push({
+        i: s.push(s.pop() + "rotate(", null, ")") - 2,
+        x: d3_interpolateNumber(ra, rb)
+      });
+    } else if (rb) {
+      s.push(s.pop() + "rotate(" + rb + ")");
+    }
+    if (wa != wb) {
+      q.push({
+        i: s.push(s.pop() + "skewX(", null, ")") - 2,
+        x: d3_interpolateNumber(wa, wb)
+      });
+    } else if (wb) {
+      s.push(s.pop() + "skewX(" + wb + ")");
+    }
+    if (ka[0] != kb[0] || ka[1] != kb[1]) {
+      n = s.push(s.pop() + "scale(", null, ",", null, ")");
+      q.push({
+        i: n - 4,
+        x: d3_interpolateNumber(ka[0], kb[0])
+      }, {
+        i: n - 2,
+        x: d3_interpolateNumber(ka[1], kb[1])
+      });
+    } else if (kb[0] != 1 || kb[1] != 1) {
+      s.push(s.pop() + "scale(" + kb + ")");
+    }
+    n = q.length;
+    return function(t) {
+      var i = -1, o;
+      while (++i < n) s[(o = q[i]).i] = o.x(t);
+      return s.join("");
+    };
+  }
+  d3.interpolateObject = d3_interpolateObject;
+  function d3_interpolateObject(a, b) {
+    var i = {}, c = {}, k;
+    for (k in a) {
+      if (k in b) {
+        i[k] = d3_interpolateByName(k)(a[k], b[k]);
+      } else {
+        c[k] = a[k];
+      }
+    }
+    for (k in b) {
+      if (!(k in a)) {
+        c[k] = b[k];
+      }
+    }
+    return function(t) {
+      for (k in i) c[k] = i[k](t);
+      return c;
+    };
+  }
+  d3.interpolateString = d3_interpolateString;
+  function d3_interpolateString(a, b) {
+    var m, i, j, s0 = 0, s1 = 0, s = [], q = [], n, o;
+    d3_interpolate_number.lastIndex = 0;
+    for (i = 0; m = d3_interpolate_number.exec(b); ++i) {
+      if (m.index) s.push(b.substring(s0, s1 = m.index));
+      q.push({
+        i: s.length,
+        x: m[0]
+      });
+      s.push(null);
+      s0 = d3_interpolate_number.lastIndex;
+    }
+    if (s0 < b.length) s.push(b.substring(s0));
+    for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) {
+      o = q[i];
+      if (o.x == m[0]) {
+        if (o.i) {
+          if (s[o.i + 1] == null) {
+            s[o.i - 1] += o.x;
+            s.splice(o.i, 1);
+            for (j = i + 1; j < n; ++j) q[j].i--;
+          } else {
+            s[o.i - 1] += o.x + s[o.i + 1];
+            s.splice(o.i, 2);
+            for (j = i + 1; j < n; ++j) q[j].i -= 2;
+          }
+        } else {
+          if (s[o.i + 1] == null) {
+            s[o.i] = o.x;
+          } else {
+            s[o.i] = o.x + s[o.i + 1];
+            s.splice(o.i + 1, 1);
+            for (j = i + 1; j < n; ++j) q[j].i--;
+          }
+        }
+        q.splice(i, 1);
+        n--;
+        i--;
+      } else {
+        o.x = d3_interpolateNumber(parseFloat(m[0]), parseFloat(o.x));
+      }
+    }
+    while (i < n) {
+      o = q.pop();
+      if (s[o.i + 1] == null) {
+        s[o.i] = o.x;
+      } else {
+        s[o.i] = o.x + s[o.i + 1];
+        s.splice(o.i + 1, 1);
+      }
+      n--;
+    }
+    if (s.length === 1) {
+      return s[0] == null ? q[0].x : function() {
+        return b;
       };
     }
-    function equals(a, b) {
-      return a.a0 == b.a0 && a.a1 == b.a1;
-    }
-    function arc(r, p, a) {
-      return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p;
-    }
-    function curve(r0, p0, r1, p1) {
-      return "Q 0,0 " + p1;
-    }
-    var source = d3_svg_chordSource, target = d3_svg_chordTarget, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
-    chord.radius = function(v) {
-      if (!arguments.length) return radius;
-      radius = d3_functor(v);
-      return chord;
+    return function(t) {
+      for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t);
+      return s.join("");
     };
-    chord.source = function(v) {
-      if (!arguments.length) return source;
-      source = d3_functor(v);
-      return chord;
+  }
+  var d3_interpolate_number = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g;
+  d3.interpolate = d3_interpolate;
+  function d3_interpolate(a, b) {
+    var i = d3.interpolators.length, f;
+    while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;
+    return f;
+  }
+  function d3_interpolateByName(name) {
+    return name == "transform" ? d3_interpolateTransform : d3_interpolate;
+  }
+  d3.interpolators = [ d3_interpolateObject, function(a, b) {
+    return Array.isArray(b) && d3_interpolateArray(a, b);
+  }, function(a, b) {
+    return (typeof a === "string" || typeof b === "string") && d3_interpolateString(a + "", b + "");
+  }, function(a, b) {
+    return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Color) && d3_interpolateRgb(a, b);
+  }, function(a, b) {
+    return !isNaN(a = +a) && !isNaN(b = +b) && d3_interpolateNumber(a, b);
+  } ];
+  d3.interpolateArray = d3_interpolateArray;
+  function d3_interpolateArray(a, b) {
+    var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;
+    for (i = 0; i < n0; ++i) x.push(d3_interpolate(a[i], b[i]));
+    for (;i < na; ++i) c[i] = a[i];
+    for (;i < nb; ++i) c[i] = b[i];
+    return function(t) {
+      for (i = 0; i < n0; ++i) c[i] = x[i](t);
+      return c;
     };
-    chord.target = function(v) {
-      if (!arguments.length) return target;
-      target = d3_functor(v);
-      return chord;
-    };
-    chord.startAngle = function(v) {
-      if (!arguments.length) return startAngle;
-      startAngle = d3_functor(v);
-      return chord;
-    };
-    chord.endAngle = function(v) {
-      if (!arguments.length) return endAngle;
-      endAngle = d3_functor(v);
-      return chord;
-    };
-    return chord;
+  }
+  var d3_ease_default = function() {
+    return d3_identity;
   };
-  d3.svg.diagonal = function() {
-    function diagonal(d, i) {
-      var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {
-        x: p0.x,
-        y: m
-      }, {
-        x: p3.x,
-        y: m
-      }, p3 ];
-      p = p.map(projection);
-      return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
-    }
-    var source = d3_svg_chordSource, target = d3_svg_chordTarget, projection = d3_svg_diagonalProjection;
-    diagonal.source = function(x) {
-      if (!arguments.length) return source;
-      source = d3_functor(x);
-      return diagonal;
-    };
-    diagonal.target = function(x) {
-      if (!arguments.length) return target;
-      target = d3_functor(x);
-      return diagonal;
-    };
-    diagonal.projection = function(x) {
-      if (!arguments.length) return projection;
-      projection = x;
-      return diagonal;
-    };
-    return diagonal;
-  };
-  d3.svg.diagonal.radial = function() {
-    var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;
-    diagonal.projection = function(x) {
-      return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;
-    };
-    return diagonal;
-  };
-  d3.svg.mouse = d3.mouse;
-  d3.svg.touches = d3.touches;
-  d3.svg.symbol = function() {
-    function symbol(d, i) {
-      return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));
-    }
-    var type = d3_svg_symbolType, size = d3_svg_symbolSize;
-    symbol.type = function(x) {
-      if (!arguments.length) return type;
-      type = d3_functor(x);
-      return symbol;
-    };
-    symbol.size = function(x) {
-      if (!arguments.length) return size;
-      size = d3_functor(x);
-      return symbol;
-    };
-    return symbol;
-  };
-  var d3_svg_symbols = d3.map({
-    circle: d3_svg_symbolCircle,
-    cross: function(size) {
-      var r = Math.sqrt(size / 5) / 2;
-      return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z";
+  var d3_ease = d3.map({
+    linear: d3_ease_default,
+    poly: d3_ease_poly,
+    quad: function() {
+      return d3_ease_quad;
     },
-    diamond: function(size) {
-      var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;
-      return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z";
+    cubic: function() {
+      return d3_ease_cubic;
     },
-    square: function(size) {
-      var r = Math.sqrt(size) / 2;
-      return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z";
+    sin: function() {
+      return d3_ease_sin;
     },
-    "triangle-down": function(size) {
-      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
-      return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z";
+    exp: function() {
+      return d3_ease_exp;
     },
-    "triangle-up": function(size) {
-      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
-      return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z";
+    circle: function() {
+      return d3_ease_circle;
+    },
+    elastic: d3_ease_elastic,
+    back: d3_ease_back,
+    bounce: function() {
+      return d3_ease_bounce;
     }
   });
-  d3.svg.symbolTypes = d3_svg_symbols.keys();
-  var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);
-  d3.svg.axis = function() {
-    function axis(g) {
-      g.each(function() {
-        var g = d3.select(this);
-        var ticks = tickValues == null ? scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain() : tickValues, tickFormat = tickFormat_ == null ? scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String : tickFormat_;
-        var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide), subtick = g.selectAll(".minor").data(subticks, String), subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6), subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(), subtickUpdate = d3.transition(subtick).style("opacity", 1);
-        var tick = g.selectAll("g").data(ticks, String), tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6), tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(), tickUpdate = d3.transition(tick).style("opacity", 1), tickTransform;
-        var range = d3_scaleRange(scale), path = g.selectAll(".domain").data([ 0 ]), pathEnter = path.enter().append("path").attr("class", "domain"), pathUpdate = d3.transition(path);
-        var scale1 = scale.copy(), scale0 = this.__chart__ || scale1;
-        this.__chart__ = scale1;
-        tickEnter.append("line").attr("class", "tick");
-        tickEnter.append("text");
-        var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text");
-        switch (orient) {
-         case "bottom":
-          {
-            tickTransform = d3_svg_axisX;
-            subtickEnter.attr("y2", tickMinorSize);
-            subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize);
-            lineEnter.attr("y2", tickMajorSize);
-            textEnter.attr("y", Math.max(tickMajorSize, 0) + tickPadding);
-            lineUpdate.attr("x2", 0).attr("y2", tickMajorSize);
-            textUpdate.attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding);
-            text.attr("dy", ".71em").attr("text-anchor", "middle");
-            pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
-            break;
-          }
-         case "top":
-          {
-            tickTransform = d3_svg_axisX;
-            subtickEnter.attr("y2", -tickMinorSize);
-            subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize);
-            lineEnter.attr("y2", -tickMajorSize);
-            textEnter.attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
-            lineUpdate.attr("x2", 0).attr("y2", -tickMajorSize);
-            textUpdate.attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
-            text.attr("dy", "0em").attr("text-anchor", "middle");
-            pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);
-            break;
-          }
-         case "left":
-          {
-            tickTransform = d3_svg_axisY;
-            subtickEnter.attr("x2", -tickMinorSize);
-            subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0);
-            lineEnter.attr("x2", -tickMajorSize);
-            textEnter.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));
-            lineUpdate.attr("x2", -tickMajorSize).attr("y2", 0);
-            textUpdate.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0);
-            text.attr("dy", ".32em").attr("text-anchor", "end");
-            pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
-            break;
-          }
-         case "right":
-          {
-            tickTransform = d3_svg_axisY;
-            subtickEnter.attr("x2", tickMinorSize);
-            subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0);
-            lineEnter.attr("x2", tickMajorSize);
-            textEnter.attr("x", Math.max(tickMajorSize, 0) + tickPadding);
-            lineUpdate.attr("x2", tickMajorSize).attr("y2", 0);
-            textUpdate.attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0);
-            text.attr("dy", ".32em").attr("text-anchor", "start");
-            pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);
-            break;
-          }
-        }
-        if (scale.ticks) {
-          tickEnter.call(tickTransform, scale0);
-          tickUpdate.call(tickTransform, scale1);
-          tickExit.call(tickTransform, scale1);
-          subtickEnter.call(tickTransform, scale0);
-          subtickUpdate.call(tickTransform, scale1);
-          subtickExit.call(tickTransform, scale1);
-        } else {
-          var dx = scale1.rangeBand() / 2, x = function(d) {
-            return scale1(d) + dx;
-          };
-          tickEnter.call(tickTransform, x);
-          tickUpdate.call(tickTransform, x);
-        }
-      });
+  var d3_ease_mode = d3.map({
+    "in": d3_identity,
+    out: d3_ease_reverse,
+    "in-out": d3_ease_reflect,
+    "out-in": function(f) {
+      return d3_ease_reflect(d3_ease_reverse(f));
     }
-    var scale = d3.scale.linear(), orient = "bottom", tickMajorSize = 6, tickMinorSize = 6, tickEndSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_, tickSubdivide = 0;
-    axis.scale = function(x) {
-      if (!arguments.length) return scale;
-      scale = x;
-      return axis;
-    };
-    axis.orient = function(x) {
-      if (!arguments.length) return orient;
-      orient = x;
-      return axis;
-    };
-    axis.ticks = function() {
-      if (!arguments.length) return tickArguments_;
-      tickArguments_ = arguments;
-      return axis;
-    };
-    axis.tickValues = function(x) {
-      if (!arguments.length) return tickValues;
-      tickValues = x;
-      return axis;
-    };
-    axis.tickFormat = function(x) {
-      if (!arguments.length) return tickFormat_;
-      tickFormat_ = x;
-      return axis;
-    };
-    axis.tickSize = function(x, y, z) {
-      if (!arguments.length) return tickMajorSize;
-      var n = arguments.length - 1;
-      tickMajorSize = +x;
-      tickMinorSize = n > 1 ? +y : tickMajorSize;
-      tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;
-      return axis;
-    };
-    axis.tickPadding = function(x) {
-      if (!arguments.length) return tickPadding;
-      tickPadding = +x;
-      return axis;
-    };
-    axis.tickSubdivide = function(x) {
-      if (!arguments.length) return tickSubdivide;
-      tickSubdivide = +x;
-      return axis;
-    };
-    return axis;
+  });
+  d3.ease = function(name) {
+    var i = name.indexOf("-"), t = i >= 0 ? name.substring(0, i) : name, m = i >= 0 ? name.substring(i + 1) : "in";
+    t = d3_ease.get(t) || d3_ease_default;
+    m = d3_ease_mode.get(m) || d3_identity;
+    return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1))));
   };
-  d3.svg.brush = function() {
-    function brush(g) {
-      g.each(function() {
-        var g = d3.select(this), bg = g.selectAll(".background").data([ 0 ]), fg = g.selectAll(".extent").data([ 0 ]), tz = g.selectAll(".resize").data(resizes, String), e;
-        g.style("pointer-events", "all").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);
-        bg.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");
-        fg.enter().append("rect").attr("class", "extent").style("cursor", "move");
-        tz.enter().append("g").attr("class", function(d) {
-          return "resize " + d;
-        }).style("cursor", function(d) {
-          return d3_svg_brushCursor[d];
-        }).append("rect").attr("x", function(d) {
-          return /[ew]$/.test(d) ? -3 : null;
-        }).attr("y", function(d) {
-          return /^[ns]/.test(d) ? -3 : null;
-        }).attr("width", 6).attr("height", 6).style("visibility", "hidden");
-        tz.style("display", brush.empty() ? "none" : null);
-        tz.exit().remove();
-        if (x) {
-          e = d3_scaleRange(x);
-          bg.attr("x", e[0]).attr("width", e[1] - e[0]);
-          redrawX(g);
-        }
-        if (y) {
-          e = d3_scaleRange(y);
-          bg.attr("y", e[0]).attr("height", e[1] - e[0]);
-          redrawY(g);
-        }
-        redraw(g);
-      });
-    }
-    function redraw(g) {
-      g.selectAll(".resize").attr("transform", function(d) {
-        return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")";
-      });
-    }
-    function redrawX(g) {
-      g.select(".extent").attr("x", extent[0][0]);
-      g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]);
-    }
-    function redrawY(g) {
-      g.select(".extent").attr("y", extent[0][1]);
-      g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]);
-    }
-    function brushstart() {
-      function mouse() {
-        var touches = d3.event.changedTouches;
-        return touches ? d3.touches(target, touches)[0] : d3.mouse(target);
-      }
-      function keydown() {
-        if (d3.event.keyCode == 32) {
-          if (!dragging) {
-            center = null;
-            origin[0] -= extent[1][0];
-            origin[1] -= extent[1][1];
-            dragging = 2;
-          }
-          d3_eventCancel();
-        }
-      }
-      function keyup() {
-        if (d3.event.keyCode == 32 && dragging == 2) {
-          origin[0] += extent[1][0];
-          origin[1] += extent[1][1];
-          dragging = 0;
-          d3_eventCancel();
-        }
-      }
-      function brushmove() {
-        var point = mouse(), moved = false;
-        if (offset) {
-          point[0] += offset[0];
-          point[1] += offset[1];
-        }
-        if (!dragging) {
-          if (d3.event.altKey) {
-            if (!center) center = [ (extent[0][0] + extent[1][0]) / 2, (extent[0][1] + extent[1][1]) / 2 ];
-            origin[0] = extent[+(point[0] < center[0])][0];
-            origin[1] = extent[+(point[1] < center[1])][1];
-          } else center = null;
-        }
-        if (resizingX && move1(point, x, 0)) {
-          redrawX(g);
-          moved = true;
-        }
-        if (resizingY && move1(point, y, 1)) {
-          redrawY(g);
-          moved = true;
-        }
-        if (moved) {
-          redraw(g);
-          event_({
-            type: "brush",
-            mode: dragging ? "move" : "resize"
-          });
-        }
-      }
-      function move1(point, scale, i) {
-        var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], size = extent[1][i] - extent[0][i], min, max;
-        if (dragging) {
-          r0 -= position;
-          r1 -= size + position;
-        }
-        min = Math.max(r0, Math.min(r1, point[i]));
-        if (dragging) {
-          max = (min += position) + size;
-        } else {
-          if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
-          if (position < min) {
-            max = min;
-            min = position;
-          } else {
-            max = position;
-          }
-        }
-        if (extent[0][i] !== min || extent[1][i] !== max) {
-          extentDomain = null;
-          extent[0][i] = min;
-          extent[1][i] = max;
-          return true;
-        }
-      }
-      function brushend() {
-        brushmove();
-        g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
-        d3.select("body").style("cursor", null);
-        w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null);
-        event_({
-          type: "brushend"
-        });
-        d3_eventCancel();
-      }
-      var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), center, origin = mouse(), offset;
-      var w = d3.select(window).on("mousemove.brush", brushmove).on("mouseup.brush", brushend).on("touchmove.brush", brushmove).on("touchend.brush", brushend).on("keydown.brush", keydown).on("keyup.brush", keyup);
-      if (dragging) {
-        origin[0] = extent[0][0] - origin[0];
-        origin[1] = extent[0][1] - origin[1];
-      } else if (resizing) {
-        var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);
-        offset = [ extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1] ];
-        origin[0] = extent[ex][0];
-        origin[1] = extent[ey][1];
-      } else if (d3.event.altKey) center = origin.slice();
-      g.style("pointer-events", "none").selectAll(".resize").style("display", null);
-      d3.select("body").style("cursor", eventTarget.style("cursor"));
-      event_({
-        type: "brushstart"
-      });
-      brushmove();
-      d3_eventCancel();
-    }
-    var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, resizes = d3_svg_brushResizes[0], extent = [ [ 0, 0 ], [ 0, 0 ] ], extentDomain;
-    brush.x = function(z) {
-      if (!arguments.length) return x;
-      x = z;
-      resizes = d3_svg_brushResizes[!x << 1 | !y];
-      return brush;
+  function d3_ease_clamp(f) {
+    return function(t) {
+      return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
     };
-    brush.y = function(z) {
-      if (!arguments.length) return y;
-      y = z;
-      resizes = d3_svg_brushResizes[!x << 1 | !y];
-      return brush;
+  }
+  function d3_ease_reverse(f) {
+    return function(t) {
+      return 1 - f(1 - t);
     };
-    brush.extent = function(z) {
-      var x0, x1, y0, y1, t;
-      if (!arguments.length) {
-        z = extentDomain || extent;
-        if (x) {
-          x0 = z[0][0], x1 = z[1][0];
-          if (!extentDomain) {
-            x0 = extent[0][0], x1 = extent[1][0];
-            if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
-            if (x1 < x0) t = x0, x0 = x1, x1 = t;
-          }
-        }
-        if (y) {
-          y0 = z[0][1], y1 = z[1][1];
-          if (!extentDomain) {
-            y0 = extent[0][1], y1 = extent[1][1];
-            if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
-            if (y1 < y0) t = y0, y0 = y1, y1 = t;
-          }
-        }
-        return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];
-      }
-      extentDomain = [ [ 0, 0 ], [ 0, 0 ] ];
-      if (x) {
-        x0 = z[0], x1 = z[1];
-        if (y) x0 = x0[0], x1 = x1[0];
-        extentDomain[0][0] = x0, extentDomain[1][0] = x1;
-        if (x.invert) x0 = x(x0), x1 = x(x1);
-        if (x1 < x0) t = x0, x0 = x1, x1 = t;
-        extent[0][0] = x0 | 0, extent[1][0] = x1 | 0;
-      }
-      if (y) {
-        y0 = z[0], y1 = z[1];
-        if (x) y0 = y0[1], y1 = y1[1];
-        extentDomain[0][1] = y0, extentDomain[1][1] = y1;
-        if (y.invert) y0 = y(y0), y1 = y(y1);
-        if (y1 < y0) t = y0, y0 = y1, y1 = t;
-        extent[0][1] = y0 | 0, extent[1][1] = y1 | 0;
-      }
-      return brush;
+  }
+  function d3_ease_reflect(f) {
+    return function(t) {
+      return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));
     };
-    brush.clear = function() {
-      extentDomain = null;
-      extent[0][0] = extent[0][1] = extent[1][0] = extent[1][1] = 0;
-      return brush;
+  }
+  function d3_ease_quad(t) {
+    return t * t;
+  }
+  function d3_ease_cubic(t) {
+    return t * t * t;
+  }
+  function d3_ease_cubicInOut(t) {
+    if (t <= 0) return 0;
+    if (t >= 1) return 1;
+    var t2 = t * t, t3 = t2 * t;
+    return 4 * (t < .5 ? t3 : 3 * (t - t2) + t3 - .75);
+  }
+  function d3_ease_poly(e) {
+    return function(t) {
+      return Math.pow(t, e);
     };
-    brush.empty = function() {
-      return x && extent[0][0] === extent[1][0] || y && extent[0][1] === extent[1][1];
+  }
+  function d3_ease_sin(t) {
+    return 1 - Math.cos(t * π / 2);
+  }
+  function d3_ease_exp(t) {
+    return Math.pow(2, 10 * (t - 1));
+  }
+  function d3_ease_circle(t) {
+    return 1 - Math.sqrt(1 - t * t);
+  }
+  function d3_ease_elastic(a, p) {
+    var s;
+    if (arguments.length < 2) p = .45;
+    if (arguments.length) s = p / (2 * π) * Math.asin(1 / a); else a = 1, s = p / 4;
+    return function(t) {
+      return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * π / p);
     };
-    return d3.rebind(brush, event, "on");
-  };
-  var d3_svg_brushCursor = {
-    n: "ns-resize",
-    e: "ew-resize",
-    s: "ns-resize",
-    w: "ew-resize",
-    nw: "nwse-resize",
-    ne: "nesw-resize",
-    se: "nwse-resize",
-    sw: "nesw-resize"
-  };
-  var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ];
-  d3.behavior = {};
-  d3.behavior.drag = function() {
-    function drag() {
-      this.on("mousedown.drag", mousedown).on("touchstart.drag", mousedown);
-    }
-    function mousedown() {
-      function point() {
-        var p = target.parentNode;
-        return touchId ? d3.touches(p).filter(function(p) {
-          return p.identifier === touchId;
-        })[0] : d3.mouse(p);
-      }
-      function dragmove() {
-        if (!target.parentNode) return dragend();
-        var p = point(), dx = p[0] - origin_[0], dy = p[1] - origin_[1];
-        moved |= dx | dy;
-        origin_ = p;
-        d3_eventCancel();
-        event_({
-          type: "drag",
-          x: p[0] + offset[0],
-          y: p[1] + offset[1],
-          dx: dx,
-          dy: dy
-        });
-      }
-      function dragend() {
-        event_({
-          type: "dragend"
-        });
-        if (moved) {
-          d3_eventCancel();
-          if (d3.event.target === eventTarget) w.on("click.drag", click, true);
-        }
-        w.on(touchId ? "touchmove.drag-" + touchId : "mousemove.drag", null).on(touchId ? "touchend.drag-" + touchId : "mouseup.drag", null);
-      }
-      function click() {
-        d3_eventCancel();
-        w.on("click.drag", null);
-      }
-      var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, touchId = d3.event.touches && d3.event.changedTouches[0].identifier, offset, origin_ = point(), moved = 0;
-      var w = d3.select(window).on(touchId ? "touchmove.drag-" + touchId : "mousemove.drag", dragmove).on(touchId ? "touchend.drag-" + touchId : "mouseup.drag", dragend, true);
-      if (origin) {
-        offset = origin.apply(target, arguments);
-        offset = [ offset.x - origin_[0], offset.y - origin_[1] ];
-      } else {
-        offset = [ 0, 0 ];
-      }
-      if (!touchId) d3_eventCancel();
-      event_({
-        type: "dragstart"
-      });
-    }
-    var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null;
-    drag.origin = function(x) {
-      if (!arguments.length) return origin;
-      origin = x;
-      return drag;
+  }
+  function d3_ease_back(s) {
+    if (!s) s = 1.70158;
+    return function(t) {
+      return t * t * ((s + 1) * t - s);
     };
-    return d3.rebind(drag, event, "on");
-  };
-  d3.behavior.zoom = function() {
-    function zoom() {
-      this.on("mousedown.zoom", mousedown).on("mousewheel.zoom", mousewheel).on("mousemove.zoom", mousemove).on("DOMMouseScroll.zoom", mousewheel).on("dblclick.zoom", dblclick).on("touchstart.zoom", touchstart).on("touchmove.zoom", touchmove).on("touchend.zoom", touchstart);
-    }
-    function location(p) {
-      return [ (p[0] - translate[0]) / scale, (p[1] - translate[1]) / scale ];
-    }
-    function point(l) {
-      return [ l[0] * scale + translate[0], l[1] * scale + translate[1] ];
-    }
-    function scaleTo(s) {
-      scale = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
-    }
-    function translateTo(p, l) {
-      l = point(l);
-      translate[0] += p[0] - l[0];
-      translate[1] += p[1] - l[1];
-    }
-    function dispatch(event) {
-      if (x1) x1.domain(x0.range().map(function(x) {
-        return (x - translate[0]) / scale;
-      }).map(x0.invert));
-      if (y1) y1.domain(y0.range().map(function(y) {
-        return (y - translate[1]) / scale;
-      }).map(y0.invert));
-      d3.event.preventDefault();
-      event({
-        type: "zoom",
-        scale: scale,
-        translate: translate
-      });
-    }
-    function mousedown() {
-      function mousemove() {
-        moved = 1;
-        translateTo(d3.mouse(target), l);
-        dispatch(event_);
-      }
-      function mouseup() {
-        if (moved) d3_eventCancel();
-        w.on("mousemove.zoom", null).on("mouseup.zoom", null);
-        if (moved && d3.event.target === eventTarget) w.on("click.zoom", click, true);
-      }
-      function click() {
-        d3_eventCancel();
-        w.on("click.zoom", null);
-      }
-      var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, moved = 0, w = d3.select(window).on("mousemove.zoom", mousemove).on("mouseup.zoom", mouseup), l = location(d3.mouse(target));
-      window.focus();
-      d3_eventCancel();
-    }
-    function mousewheel() {
-      if (!translate0) translate0 = location(d3.mouse(this));
-      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * scale);
-      translateTo(d3.mouse(this), translate0);
-      dispatch(event.of(this, arguments));
-    }
-    function mousemove() {
-      translate0 = null;
-    }
-    function dblclick() {
-      var p = d3.mouse(this), l = location(p);
-      scaleTo(d3.event.shiftKey ? scale / 2 : scale * 2);
-      translateTo(p, l);
-      dispatch(event.of(this, arguments));
-    }
-    function touchstart() {
-      var touches = d3.touches(this), now = Date.now();
-      scale0 = scale;
-      translate0 = {};
-      touches.forEach(function(t) {
-        translate0[t.identifier] = location(t);
-      });
-      d3_eventCancel();
-      if (touches.length === 1) {
-        if (now - touchtime < 500) {
-          var p = touches[0], l = location(touches[0]);
-          scaleTo(scale * 2);
-          translateTo(p, l);
-          dispatch(event.of(this, arguments));
-        }
-        touchtime = now;
-      }
-    }
-    function touchmove() {
-      var touches = d3.touches(this), p0 = touches[0], l0 = translate0[p0.identifier];
-      if (p1 = touches[1]) {
-        var p1, l1 = translate0[p1.identifier];
-        p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];
-        l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];
-        scaleTo(d3.event.scale * scale0);
-      }
-      translateTo(p0, l0);
-      touchtime = null;
-      dispatch(event.of(this, arguments));
-    }
-    var translate = [ 0, 0 ], translate0, scale = 1, scale0, scaleExtent = d3_behavior_zoomInfinity, event = d3_eventDispatch(zoom, "zoom"), x0, x1, y0, y1, touchtime;
-    zoom.translate = function(x) {
-      if (!arguments.length) return translate;
-      translate = x.map(Number);
-      return zoom;
+  }
+  function d3_ease_bounce(t) {
+    return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
+  }
+  d3.interpolateHcl = d3_interpolateHcl;
+  function d3_interpolateHcl(a, b) {
+    a = d3.hcl(a);
+    b = d3.hcl(b);
+    var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;
+    if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
+    return function(t) {
+      return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + "";
     };
-    zoom.scale = function(x) {
-      if (!arguments.length) return scale;
-      scale = +x;
-      return zoom;
+  }
+  d3.interpolateHsl = d3_interpolateHsl;
+  function d3_interpolateHsl(a, b) {
+    a = d3.hsl(a);
+    b = d3.hsl(b);
+    var h0 = a.h, s0 = a.s, l0 = a.l, h1 = b.h - h0, s1 = b.s - s0, l1 = b.l - l0;
+    if (h1 > 180) h1 -= 360; else if (h1 < -180) h1 += 360;
+    return function(t) {
+      return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t) + "";
     };
-    zoom.scaleExtent = function(x) {
-      if (!arguments.length) return scaleExtent;
-      scaleExtent = x == null ? d3_behavior_zoomInfinity : x.map(Number);
-      return zoom;
+  }
+  d3.interpolateLab = d3_interpolateLab;
+  function d3_interpolateLab(a, b) {
+    a = d3.lab(a);
+    b = d3.lab(b);
+    var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;
+    return function(t) {
+      return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + "";
     };
-    zoom.x = function(z) {
-      if (!arguments.length) return x1;
-      x1 = z;
-      x0 = z.copy();
-      return zoom;
+  }
+  d3.interpolateRound = d3_interpolateRound;
+  function d3_interpolateRound(a, b) {
+    b -= a;
+    return function(t) {
+      return Math.round(a + b * t);
     };
-    zoom.y = function(z) {
-      if (!arguments.length) return y1;
-      y1 = z;
-      y0 = z.copy();
-      return zoom;
+  }
+  function d3_uninterpolateNumber(a, b) {
+    b = b - (a = +a) ? 1 / (b - a) : 0;
+    return function(x) {
+      return (x - a) * b;
     };
-    return d3.rebind(zoom, event, "on");
-  };
-  var d3_behavior_zoomDiv, d3_behavior_zoomInfinity = [ 0, Infinity ];
+  }
+  function d3_uninterpolateClamp(a, b) {
+    b = b - (a = +a) ? 1 / (b - a) : 0;
+    return function(x) {
+      return Math.max(0, Math.min(1, (x - a) * b));
+    };
+  }
   d3.layout = {};
   d3.layout.bundle = function() {
     return function(links) {
@@ -4925,7 +5009,41 @@
       return paths;
     };
   };
+  function d3_layout_bundlePath(link) {
+    var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];
+    while (start !== lca) {
+      start = start.parent;
+      points.push(start);
+    }
+    var k = points.length;
+    while (end !== lca) {
+      points.splice(k, 0, end);
+      end = end.parent;
+    }
+    return points;
+  }
+  function d3_layout_bundleAncestors(node) {
+    var ancestors = [], parent = node.parent;
+    while (parent != null) {
+      ancestors.push(node);
+      node = parent;
+      parent = parent.parent;
+    }
+    ancestors.push(node);
+    return ancestors;
+  }
+  function d3_layout_bundleLeastCommonAncestor(a, b) {
+    if (a === b) return a;
+    var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;
+    while (aNode === bNode) {
+      sharedNode = aNode;
+      aNode = aNodes.pop();
+      bNode = bNodes.pop();
+    }
+    return sharedNode;
+  }
   d3.layout.chord = function() {
+    var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;
     function relayout() {
       var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j;
       chords = [];
@@ -4952,7 +5070,7 @@
           });
         });
       }
-      k = (2 * Math.PI - padding * n) / k;
+      k = (2 * π - padding * n) / k;
       x = 0, i = -1;
       while (++i < n) {
         x0 = x, j = -1;
@@ -4997,7 +5115,6 @@
         return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2);
       });
     }
-    var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;
     chord.matrix = function(x) {
       if (!arguments.length) return matrix;
       n = (matrix = x) && matrix.length;
@@ -5039,8 +5156,9 @@
     return chord;
   };
   d3.layout.force = function() {
+    var force = {}, event = d3.dispatch("start", "tick", "end"), size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, gravity = .1, theta = .8, nodes = [], links = [], distances, strengths, charges;
     function repulse(node) {
-      return function(quad, x1, y1, x2, y2) {
+      return function(quad, x1, _, x2) {
         if (quad.point !== node) {
           var dx = quad.cx - node.x, dy = quad.cy - node.y, dn = 1 / Math.sqrt(dx * dx + dy * dy);
           if ((x2 - x1) * dn < theta) {
@@ -5058,12 +5176,6 @@
         return !quad.charge;
       };
     }
-    function dragmove(d) {
-      d.px = d3.event.x;
-      d.py = d3.event.y;
-      force.resume();
-    }
-    var force = {}, event = d3.dispatch("start", "tick", "end"), size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, gravity = .1, theta = .8, interval, nodes = [], links = [], distances, strengths, charges;
     force.tick = function() {
       if ((alpha *= .99) < .005) {
         event.end({
@@ -5141,18 +5253,18 @@
     };
     force.linkDistance = function(x) {
       if (!arguments.length) return linkDistance;
-      linkDistance = d3_functor(x);
+      linkDistance = typeof x === "function" ? x : +x;
       return force;
     };
     force.distance = force.linkDistance;
     force.linkStrength = function(x) {
       if (!arguments.length) return linkStrength;
-      linkStrength = d3_functor(x);
+      linkStrength = typeof x === "function" ? x : +x;
       return force;
     };
     force.friction = function(x) {
       if (!arguments.length) return friction;
-      friction = x;
+      friction = +x;
       return force;
     };
     force.charge = function(x) {
@@ -5162,16 +5274,17 @@
     };
     force.gravity = function(x) {
       if (!arguments.length) return gravity;
-      gravity = x;
+      gravity = +x;
       return force;
     };
     force.theta = function(x) {
       if (!arguments.length) return theta;
-      theta = x;
+      theta = +x;
       return force;
     };
     force.alpha = function(x) {
       if (!arguments.length) return alpha;
+      x = +x;
       if (alpha) {
         if (x > 0) alpha = x; else alpha = 0;
       } else if (x > 0) {
@@ -5184,6 +5297,31 @@
       return force;
     };
     force.start = function() {
+      var i, j, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;
+      for (i = 0; i < n; ++i) {
+        (o = nodes[i]).index = i;
+        o.weight = 0;
+      }
+      for (i = 0; i < m; ++i) {
+        o = links[i];
+        if (typeof o.source == "number") o.source = nodes[o.source];
+        if (typeof o.target == "number") o.target = nodes[o.target];
+        ++o.source.weight;
+        ++o.target.weight;
+      }
+      for (i = 0; i < n; ++i) {
+        o = nodes[i];
+        if (isNaN(o.x)) o.x = position("x", w);
+        if (isNaN(o.y)) o.y = position("y", h);
+        if (isNaN(o.px)) o.px = o.x;
+        if (isNaN(o.py)) o.py = o.y;
+      }
+      distances = [];
+      if (typeof linkDistance === "function") for (i = 0; i < m; ++i) distances[i] = +linkDistance.call(this, links[i], i); else for (i = 0; i < m; ++i) distances[i] = linkDistance;
+      strengths = [];
+      if (typeof linkStrength === "function") for (i = 0; i < m; ++i) strengths[i] = +linkStrength.call(this, links[i], i); else for (i = 0; i < m; ++i) strengths[i] = linkStrength;
+      charges = [];
+      if (typeof charge === "function") for (i = 0; i < n; ++i) charges[i] = +charge.call(this, nodes[i], i); else for (i = 0; i < n; ++i) charges[i] = charge;
       function position(dimension, size) {
         var neighbors = neighbor(i), j = -1, m = neighbors.length, x;
         while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x;
@@ -5203,39 +5341,6 @@
         }
         return neighbors[i];
       }
-      var i, j, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;
-      for (i = 0; i < n; ++i) {
-        (o = nodes[i]).index = i;
-        o.weight = 0;
-      }
-      distances = [];
-      strengths = [];
-      for (i = 0; i < m; ++i) {
-        o = links[i];
-        if (typeof o.source == "number") o.source = nodes[o.source];
-        if (typeof o.target == "number") o.target = nodes[o.target];
-        distances[i] = linkDistance.call(this, o, i);
-        strengths[i] = linkStrength.call(this, o, i);
-        ++o.source.weight;
-        ++o.target.weight;
-      }
-      for (i = 0; i < n; ++i) {
-        o = nodes[i];
-        if (isNaN(o.x)) o.x = position("x", w);
-        if (isNaN(o.y)) o.y = position("y", h);
-        if (isNaN(o.px)) o.px = o.x;
-        if (isNaN(o.py)) o.py = o.y;
-      }
-      charges = [];
-      if (typeof charge === "function") {
-        for (i = 0; i < n; ++i) {
-          charges[i] = +charge.call(this, nodes[i], i);
-        }
-      } else {
-        for (i = 0; i < n; ++i) {
-          charges[i] = charge;
-        }
-      }
       return force.resume();
     };
     force.resume = function() {
@@ -5245,12 +5350,142 @@
       return force.alpha(0);
     };
     force.drag = function() {
-      if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart", d3_layout_forceDragstart).on("drag", dragmove).on("dragend", d3_layout_forceDragend);
+      if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart.force", d3_layout_forceDragstart).on("drag.force", dragmove).on("dragend.force", d3_layout_forceDragend);
+      if (!arguments.length) return drag;
       this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag);
     };
+    function dragmove(d) {
+      d.px = d3.event.x, d.py = d3.event.y;
+      force.resume();
+    }
     return d3.rebind(force, event, "on");
   };
+  function d3_layout_forceDragstart(d) {
+    d.fixed |= 2;
+  }
+  function d3_layout_forceDragend(d) {
+    d.fixed &= ~6;
+  }
+  function d3_layout_forceMouseover(d) {
+    d.fixed |= 4;
+    d.px = d.x, d.py = d.y;
+  }
+  function d3_layout_forceMouseout(d) {
+    d.fixed &= ~4;
+  }
+  function d3_layout_forceAccumulate(quad, alpha, charges) {
+    var cx = 0, cy = 0;
+    quad.charge = 0;
+    if (!quad.leaf) {
+      var nodes = quad.nodes, n = nodes.length, i = -1, c;
+      while (++i < n) {
+        c = nodes[i];
+        if (c == null) continue;
+        d3_layout_forceAccumulate(c, alpha, charges);
+        quad.charge += c.charge;
+        cx += c.charge * c.cx;
+        cy += c.charge * c.cy;
+      }
+    }
+    if (quad.point) {
+      if (!quad.leaf) {
+        quad.point.x += Math.random() - .5;
+        quad.point.y += Math.random() - .5;
+      }
+      var k = alpha * charges[quad.point.index];
+      quad.charge += quad.pointCharge = k;
+      cx += k * quad.point.x;
+      cy += k * quad.point.y;
+    }
+    quad.cx = cx / quad.charge;
+    quad.cy = cy / quad.charge;
+  }
+  var d3_layout_forceLinkDistance = 20, d3_layout_forceLinkStrength = 1;
+  d3.layout.hierarchy = function() {
+    var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;
+    function recurse(node, depth, nodes) {
+      var childs = children.call(hierarchy, node, depth);
+      node.depth = depth;
+      nodes.push(node);
+      if (childs && (n = childs.length)) {
+        var i = -1, n, c = node.children = [], v = 0, j = depth + 1, d;
+        while (++i < n) {
+          d = recurse(childs[i], j, nodes);
+          d.parent = node;
+          c.push(d);
+          v += d.value;
+        }
+        if (sort) c.sort(sort);
+        if (value) node.value = v;
+      } else if (value) {
+        node.value = +value.call(hierarchy, node, depth) || 0;
+      }
+      return node;
+    }
+    function revalue(node, depth) {
+      var children = node.children, v = 0;
+      if (children && (n = children.length)) {
+        var i = -1, n, j = depth + 1;
+        while (++i < n) v += revalue(children[i], j);
+      } else if (value) {
+        v = +value.call(hierarchy, node, depth) || 0;
+      }
+      if (value) node.value = v;
+      return v;
+    }
+    function hierarchy(d) {
+      var nodes = [];
+      recurse(d, 0, nodes);
+      return nodes;
+    }
+    hierarchy.sort = function(x) {
+      if (!arguments.length) return sort;
+      sort = x;
+      return hierarchy;
+    };
+    hierarchy.children = function(x) {
+      if (!arguments.length) return children;
+      children = x;
+      return hierarchy;
+    };
+    hierarchy.value = function(x) {
+      if (!arguments.length) return value;
+      value = x;
+      return hierarchy;
+    };
+    hierarchy.revalue = function(root) {
+      revalue(root, 0);
+      return root;
+    };
+    return hierarchy;
+  };
+  function d3_layout_hierarchyRebind(object, hierarchy) {
+    d3.rebind(object, hierarchy, "sort", "children", "value");
+    object.nodes = object;
+    object.links = d3_layout_hierarchyLinks;
+    return object;
+  }
+  function d3_layout_hierarchyChildren(d) {
+    return d.children;
+  }
+  function d3_layout_hierarchyValue(d) {
+    return d.value;
+  }
+  function d3_layout_hierarchySort(a, b) {
+    return b.value - a.value;
+  }
+  function d3_layout_hierarchyLinks(nodes) {
+    return d3.merge(nodes.map(function(parent) {
+      return (parent.children || []).map(function(child) {
+        return {
+          source: parent,
+          target: child
+        };
+      });
+    }));
+  }
   d3.layout.partition = function() {
+    var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];
     function position(node, x, dx, dy) {
       var children = node.children;
       node.x = x;
@@ -5279,7 +5514,6 @@
       position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
       return nodes;
     }
-    var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];
     partition.size = function(x) {
       if (!arguments.length) return size;
       size = x;
@@ -5288,12 +5522,13 @@
     return d3_layout_hierarchyRebind(partition, hierarchy);
   };
   d3.layout.pie = function() {
-    function pie(data, i) {
+    var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = 2 * π;
+    function pie(data) {
       var values = data.map(function(d, i) {
         return +value.call(pie, d, i);
       });
       var a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle);
-      var k = ((typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - startAngle) / d3.sum(values);
+      var k = ((typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - a) / d3.sum(values);
       var index = d3.range(data.length);
       if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) {
         return values[j] - values[i];
@@ -5312,7 +5547,6 @@
       });
       return arcs;
     }
-    var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = 2 * Math.PI;
     pie.value = function(x) {
       if (!arguments.length) return value;
       value = x;
@@ -5337,11 +5571,12 @@
   };
   var d3_layout_pieSortByValue = {};
   d3.layout.stack = function() {
+    var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;
     function stack(data, index) {
       var series = data.map(function(d, i) {
         return values.call(stack, d, i);
       });
-      var points = series.map(function(d, i) {
+      var points = series.map(function(d) {
         return d.map(function(v, i) {
           return [ x.call(stack, v, i), y.call(stack, v, i) ];
         });
@@ -5359,7 +5594,6 @@
       }
       return data;
     }
-    var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;
     stack.values = function(x) {
       if (!arguments.length) return values;
       values = x;
@@ -5392,6 +5626,16 @@
     };
     return stack;
   };
+  function d3_layout_stackX(d) {
+    return d.x;
+  }
+  function d3_layout_stackY(d) {
+    return d.y;
+  }
+  function d3_layout_stackOut(d, y0, y) {
+    d.y0 = y0;
+    d.y = y;
+  }
   var d3_layout_stackOrders = d3.map({
     "inside-out": function(data) {
       var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) {
@@ -5428,7 +5672,7 @@
       return y0;
     },
     wiggle: function(data) {
-      var n = data.length, x = data[0], m = x.length, max = 0, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];
+      var n = data.length, x = data[0], m = x.length, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];
       y0[0] = o = o0 = 0;
       for (j = 1; j < m; ++j) {
         for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
@@ -5455,7 +5699,32 @@
     },
     zero: d3_layout_stackOffsetZero
   });
+  function d3_layout_stackOrderDefault(data) {
+    return d3.range(data.length);
+  }
+  function d3_layout_stackOffsetZero(data) {
+    var j = -1, m = data[0].length, y0 = [];
+    while (++j < m) y0[j] = 0;
+    return y0;
+  }
+  function d3_layout_stackMaxIndex(array) {
+    var i = 1, j = 0, v = array[0][1], k, n = array.length;
+    for (;i < n; ++i) {
+      if ((k = array[i][1]) > v) {
+        j = i;
+        v = k;
+      }
+    }
+    return j;
+  }
+  function d3_layout_stackReduceSum(d) {
+    return d.reduce(d3_layout_stackSum, 0);
+  }
+  function d3_layout_stackSum(p, d) {
+    return p + d[1];
+  }
   d3.layout.histogram = function() {
+    var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;
     function histogram(data, i) {
       var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x;
       while (++i < m) {
@@ -5476,7 +5745,6 @@
       }
       return bins;
     }
-    var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;
     histogram.value = function(x) {
       if (!arguments.length) return valuer;
       valuer = x;
@@ -5501,140 +5769,21 @@
     };
     return histogram;
   };
-  d3.layout.hierarchy = function() {
-    function recurse(data, depth, nodes) {
-      var childs = children.call(hierarchy, data, depth), node = d3_layout_hierarchyInline ? data : {
-        data: data
-      };
-      node.depth = depth;
-      nodes.push(node);
-      if (childs && (n = childs.length)) {
-        var i = -1, n, c = node.children = [], v = 0, j = depth + 1, d;
-        while (++i < n) {
-          d = recurse(childs[i], j, nodes);
-          d.parent = node;
-          c.push(d);
-          v += d.value;
-        }
-        if (sort) c.sort(sort);
-        if (value) node.value = v;
-      } else if (value) {
-        node.value = +value.call(hierarchy, data, depth) || 0;
-      }
-      return node;
-    }
-    function revalue(node, depth) {
-      var children = node.children, v = 0;
-      if (children && (n = children.length)) {
-        var i = -1, n, j = depth + 1;
-        while (++i < n) v += revalue(children[i], j);
-      } else if (value) {
-        v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0;
-      }
-      if (value) node.value = v;
-      return v;
-    }
-    function hierarchy(d) {
-      var nodes = [];
-      recurse(d, 0, nodes);
-      return nodes;
-    }
-    var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;
-    hierarchy.sort = function(x) {
-      if (!arguments.length) return sort;
-      sort = x;
-      return hierarchy;
-    };
-    hierarchy.children = function(x) {
-      if (!arguments.length) return children;
-      children = x;
-      return hierarchy;
-    };
-    hierarchy.value = function(x) {
-      if (!arguments.length) return value;
-      value = x;
-      return hierarchy;
-    };
-    hierarchy.revalue = function(root) {
-      revalue(root, 0);
-      return root;
-    };
-    return hierarchy;
-  };
-  var d3_layout_hierarchyInline = false;
-  d3.layout.pack = function() {
-    function pack(d, i) {
-      var nodes = hierarchy.call(this, d, i), root = nodes[0];
-      root.x = 0;
-      root.y = 0;
-      d3_layout_treeVisitAfter(root, function(d) {
-        d.r = Math.sqrt(d.value);
-      });
-      d3_layout_treeVisitAfter(root, d3_layout_packSiblings);
-      var w = size[0], h = size[1], k = Math.max(2 * root.r / w, 2 * root.r / h);
-      if (padding > 0) {
-        var dr = padding * k / 2;
-        d3_layout_treeVisitAfter(root, function(d) {
-          d.r += dr;
-        });
-        d3_layout_treeVisitAfter(root, d3_layout_packSiblings);
-        d3_layout_treeVisitAfter(root, function(d) {
-          d.r -= dr;
-        });
-        k = Math.max(2 * root.r / w, 2 * root.r / h);
-      }
-      d3_layout_packTransform(root, w / 2, h / 2, 1 / k);
-      return nodes;
-    }
-    var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ];
-    pack.size = function(x) {
-      if (!arguments.length) return size;
-      size = x;
-      return pack;
-    };
-    pack.padding = function(_) {
-      if (!arguments.length) return padding;
-      padding = +_;
-      return pack;
-    };
-    return d3_layout_hierarchyRebind(pack, hierarchy);
-  };
-  d3.layout.cluster = function() {
-    function cluster(d, i) {
-      var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0, kx, ky;
-      d3_layout_treeVisitAfter(root, function(node) {
-        var children = node.children;
-        if (children && children.length) {
-          node.x = d3_layout_clusterX(children);
-          node.y = d3_layout_clusterY(children);
-        } else {
-          node.x = previousNode ? x += separation(node, previousNode) : 0;
-          node.y = 0;
-          previousNode = node;
-        }
-      });
-      var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;
-      d3_layout_treeVisitAfter(root, function(node) {
-        node.x = (node.x - x0) / (x1 - x0) * size[0];
-        node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
-      });
-      return nodes;
-    }
-    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ];
-    cluster.separation = function(x) {
-      if (!arguments.length) return separation;
-      separation = x;
-      return cluster;
-    };
-    cluster.size = function(x) {
-      if (!arguments.length) return size;
-      size = x;
-      return cluster;
-    };
-    return d3_layout_hierarchyRebind(cluster, hierarchy);
-  };
+  function d3_layout_histogramBinSturges(range, values) {
+    return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
+  }
+  function d3_layout_histogramBinFixed(range, n) {
+    var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];
+    while (++x <= n) f[x] = m * x + b;
+    return f;
+  }
+  function d3_layout_histogramRange(values) {
+    return [ d3.min(values), d3.max(values) ];
+  }
   d3.layout.tree = function() {
+    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ];
     function tree(d, i) {
+      var nodes = hierarchy.call(this, d, i), root = nodes[0];
       function firstWalk(node, previousSibling) {
         var children = node.children, layout = node._tree;
         if (children && (n = children.length)) {
@@ -5700,7 +5849,6 @@
         }
         return ancestor;
       }
-      var nodes = hierarchy.call(this, d, i), root = nodes[0];
       d3_layout_treeVisitAfter(root, function(node, previousSibling) {
         node._tree = {
           ancestor: node,
@@ -5721,7 +5869,6 @@
       });
       return nodes;
     }
-    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ];
     tree.separation = function(x) {
       if (!arguments.length) return separation;
       separation = x;
@@ -5734,7 +5881,279 @@
     };
     return d3_layout_hierarchyRebind(tree, hierarchy);
   };
+  function d3_layout_treeSeparation(a, b) {
+    return a.parent == b.parent ? 1 : 2;
+  }
+  function d3_layout_treeLeft(node) {
+    var children = node.children;
+    return children && children.length ? children[0] : node._tree.thread;
+  }
+  function d3_layout_treeRight(node) {
+    var children = node.children, n;
+    return children && (n = children.length) ? children[n - 1] : node._tree.thread;
+  }
+  function d3_layout_treeSearch(node, compare) {
+    var children = node.children;
+    if (children && (n = children.length)) {
+      var child, n, i = -1;
+      while (++i < n) {
+        if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {
+          node = child;
+        }
+      }
+    }
+    return node;
+  }
+  function d3_layout_treeRightmost(a, b) {
+    return a.x - b.x;
+  }
+  function d3_layout_treeLeftmost(a, b) {
+    return b.x - a.x;
+  }
+  function d3_layout_treeDeepest(a, b) {
+    return a.depth - b.depth;
+  }
+  function d3_layout_treeVisitAfter(node, callback) {
+    function visit(node, previousSibling) {
+      var children = node.children;
+      if (children && (n = children.length)) {
+        var child, previousChild = null, i = -1, n;
+        while (++i < n) {
+          child = children[i];
+          visit(child, previousChild);
+          previousChild = child;
+        }
+      }
+      callback(node, previousSibling);
+    }
+    visit(node, null);
+  }
+  function d3_layout_treeShift(node) {
+    var shift = 0, change = 0, children = node.children, i = children.length, child;
+    while (--i >= 0) {
+      child = children[i]._tree;
+      child.prelim += shift;
+      child.mod += shift;
+      shift += child.shift + (change += child.change);
+    }
+  }
+  function d3_layout_treeMove(ancestor, node, shift) {
+    ancestor = ancestor._tree;
+    node = node._tree;
+    var change = shift / (node.number - ancestor.number);
+    ancestor.change += change;
+    node.change -= change;
+    node.shift += shift;
+    node.prelim += shift;
+    node.mod += shift;
+  }
+  function d3_layout_treeAncestor(vim, node, ancestor) {
+    return vim._tree.ancestor.parent == node.parent ? vim._tree.ancestor : ancestor;
+  }
+  d3.layout.pack = function() {
+    var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ];
+    function pack(d, i) {
+      var nodes = hierarchy.call(this, d, i), root = nodes[0];
+      root.x = 0;
+      root.y = 0;
+      d3_layout_treeVisitAfter(root, function(d) {
+        d.r = Math.sqrt(d.value);
+      });
+      d3_layout_treeVisitAfter(root, d3_layout_packSiblings);
+      var w = size[0], h = size[1], k = Math.max(2 * root.r / w, 2 * root.r / h);
+      if (padding > 0) {
+        var dr = padding * k / 2;
+        d3_layout_treeVisitAfter(root, function(d) {
+          d.r += dr;
+        });
+        d3_layout_treeVisitAfter(root, d3_layout_packSiblings);
+        d3_layout_treeVisitAfter(root, function(d) {
+          d.r -= dr;
+        });
+        k = Math.max(2 * root.r / w, 2 * root.r / h);
+      }
+      d3_layout_packTransform(root, w / 2, h / 2, 1 / k);
+      return nodes;
+    }
+    pack.size = function(x) {
+      if (!arguments.length) return size;
+      size = x;
+      return pack;
+    };
+    pack.padding = function(_) {
+      if (!arguments.length) return padding;
+      padding = +_;
+      return pack;
+    };
+    return d3_layout_hierarchyRebind(pack, hierarchy);
+  };
+  function d3_layout_packSort(a, b) {
+    return a.value - b.value;
+  }
+  function d3_layout_packInsert(a, b) {
+    var c = a._pack_next;
+    a._pack_next = b;
+    b._pack_prev = a;
+    b._pack_next = c;
+    c._pack_prev = b;
+  }
+  function d3_layout_packSplice(a, b) {
+    a._pack_next = b;
+    b._pack_prev = a;
+  }
+  function d3_layout_packIntersects(a, b) {
+    var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;
+    return dr * dr - dx * dx - dy * dy > .001;
+  }
+  function d3_layout_packSiblings(node) {
+    if (!(nodes = node.children) || !(n = nodes.length)) return;
+    var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;
+    function bound(node) {
+      xMin = Math.min(node.x - node.r, xMin);
+      xMax = Math.max(node.x + node.r, xMax);
+      yMin = Math.min(node.y - node.r, yMin);
+      yMax = Math.max(node.y + node.r, yMax);
+    }
+    nodes.forEach(d3_layout_packLink);
+    a = nodes[0];
+    a.x = -a.r;
+    a.y = 0;
+    bound(a);
+    if (n > 1) {
+      b = nodes[1];
+      b.x = b.r;
+      b.y = 0;
+      bound(b);
+      if (n > 2) {
+        c = nodes[2];
+        d3_layout_packPlace(a, b, c);
+        bound(c);
+        d3_layout_packInsert(a, c);
+        a._pack_prev = c;
+        d3_layout_packInsert(c, b);
+        b = a._pack_next;
+        for (i = 3; i < n; i++) {
+          d3_layout_packPlace(a, b, c = nodes[i]);
+          var isect = 0, s1 = 1, s2 = 1;
+          for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
+            if (d3_layout_packIntersects(j, c)) {
+              isect = 1;
+              break;
+            }
+          }
+          if (isect == 1) {
+            for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
+              if (d3_layout_packIntersects(k, c)) {
+                break;
+              }
+            }
+          }
+          if (isect) {
+            if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);
+            i--;
+          } else {
+            d3_layout_packInsert(a, c);
+            b = c;
+            bound(c);
+          }
+        }
+      }
+    }
+    var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;
+    for (i = 0; i < n; i++) {
+      c = nodes[i];
+      c.x -= cx;
+      c.y -= cy;
+      cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));
+    }
+    node.r = cr;
+    nodes.forEach(d3_layout_packUnlink);
+  }
+  function d3_layout_packLink(node) {
+    node._pack_next = node._pack_prev = node;
+  }
+  function d3_layout_packUnlink(node) {
+    delete node._pack_next;
+    delete node._pack_prev;
+  }
+  function d3_layout_packTransform(node, x, y, k) {
+    var children = node.children;
+    node.x = x += k * node.x;
+    node.y = y += k * node.y;
+    node.r *= k;
+    if (children) {
+      var i = -1, n = children.length;
+      while (++i < n) d3_layout_packTransform(children[i], x, y, k);
+    }
+  }
+  function d3_layout_packPlace(a, b, c) {
+    var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;
+    if (db && (dx || dy)) {
+      var da = b.r + c.r, dc = dx * dx + dy * dy;
+      da *= da;
+      db *= db;
+      var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
+      c.x = a.x + x * dx + y * dy;
+      c.y = a.y + x * dy - y * dx;
+    } else {
+      c.x = a.x + db;
+      c.y = a.y;
+    }
+  }
+  d3.layout.cluster = function() {
+    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ];
+    function cluster(d, i) {
+      var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0;
+      d3_layout_treeVisitAfter(root, function(node) {
+        var children = node.children;
+        if (children && children.length) {
+          node.x = d3_layout_clusterX(children);
+          node.y = d3_layout_clusterY(children);
+        } else {
+          node.x = previousNode ? x += separation(node, previousNode) : 0;
+          node.y = 0;
+          previousNode = node;
+        }
+      });
+      var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;
+      d3_layout_treeVisitAfter(root, function(node) {
+        node.x = (node.x - x0) / (x1 - x0) * size[0];
+        node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
+      });
+      return nodes;
+    }
+    cluster.separation = function(x) {
+      if (!arguments.length) return separation;
+      separation = x;
+      return cluster;
+    };
+    cluster.size = function(x) {
+      if (!arguments.length) return size;
+      size = x;
+      return cluster;
+    };
+    return d3_layout_hierarchyRebind(cluster, hierarchy);
+  };
+  function d3_layout_clusterY(children) {
+    return 1 + d3.max(children, function(child) {
+      return child.y;
+    });
+  }
+  function d3_layout_clusterX(children) {
+    return children.reduce(function(x, child) {
+      return x + child.x;
+    }, 0) / children.length;
+  }
+  function d3_layout_clusterLeft(node) {
+    var children = node.children;
+    return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
+  }
+  function d3_layout_clusterRight(node) {
+    var children = node.children, n;
+    return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
+  }
   d3.layout.treemap = function() {
+    var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, mode = "squarify", ratio = .5 * (1 + Math.sqrt(5));
     function scale(children, k) {
       var i = -1, n = children.length, child, area;
       while (++i < n) {
@@ -5745,13 +6164,13 @@
     function squarify(node) {
       var children = node.children;
       if (children && children.length) {
-        var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = Math.min(rect.dx, rect.dy), n;
+        var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = mode === "slice" ? rect.dx : mode === "dice" ? rect.dy : mode === "slice-dice" ? node.depth & 1 ? rect.dy : rect.dx : Math.min(rect.dx, rect.dy), n;
         scale(remaining, rect.dx * rect.dy / node.value);
         row.area = 0;
         while ((n = remaining.length) > 0) {
           row.push(child = remaining[n - 1]);
           row.area += child.area;
-          if ((score = worst(row, u)) <= best) {
+          if (mode !== "squarify" || (score = worst(row, u)) <= best) {
             remaining.pop();
             best = score;
           } else {
@@ -5839,13 +6258,13 @@
       if (sticky) stickies = nodes;
       return nodes;
     }
-    var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, ratio = .5 * (1 + Math.sqrt(5));
     treemap.size = function(x) {
       if (!arguments.length) return size;
       size = x;
       return treemap;
     };
     treemap.padding = function(x) {
+      if (!arguments.length) return padding;
       function padFunction(node) {
         var p = x.call(treemap, node, node.depth);
         return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === "number" ? [ p, p, p, p ] : p);
@@ -5853,9 +6272,9 @@
       function padConstant(node) {
         return d3_layout_treemapPad(node, x);
       }
-      if (!arguments.length) return padding;
       var type;
-      pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ], padConstant) : padConstant;
+      pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ],
+      padConstant) : padConstant;
       return treemap;
     };
     treemap.round = function(x) {
@@ -5874,790 +6293,1513 @@
       ratio = x;
       return treemap;
     };
-    return d3_layout_hierarchyRebind(treemap, hierarchy);
-  };
-  d3.csv = d3_dsv(",", "text/csv");
-  d3.tsv = d3_dsv("	", "text/tab-separated-values");
-  d3.geo = {};
-  var d3_geo_radians = Math.PI / 180;
-  d3.geo.azimuthal = function() {
-    function azimuthal(coordinates) {
-      var x1 = coordinates[0] * d3_geo_radians - x0, y1 = coordinates[1] * d3_geo_radians, cx1 = Math.cos(x1), sx1 = Math.sin(x1), cy1 = Math.cos(y1), sy1 = Math.sin(y1), cc = mode !== "orthographic" ? sy0 * sy1 + cy0 * cy1 * cx1 : null, c, k = mode === "stereographic" ? 1 / (1 + cc) : mode === "gnomonic" ? 1 / cc : mode === "equidistant" ? (c = Math.acos(cc), c ? c / Math.sin(c) : 0) : mode === "equalarea" ? Math.sqrt(2 / (1 + cc)) : 1, x = k * cy1 * sx1, y = k * (sy0 * cy1 * cx1 - cy0 * sy1);
-      return [ scale * x + translate[0], scale * y + translate[1] ];
-    }
-    var mode = "orthographic", origin, scale = 200, translate = [ 480, 250 ], x0, y0, cy0, sy0;
-    azimuthal.invert = function(coordinates) {
-      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale, p = Math.sqrt(x * x + y * y), c = mode === "stereographic" ? 2 * Math.atan(p) : mode === "gnomonic" ? Math.atan(p) : mode === "equidistant" ? p : mode === "equalarea" ? 2 * Math.asin(.5 * p) : Math.asin(p), sc = Math.sin(c), cc = Math.cos(c);
-      return [ (x0 + Math.atan2(x * sc, p * cy0 * cc + y * sy0 * sc)) / d3_geo_radians, Math.asin(cc * sy0 - (p ? y * sc * cy0 / p : 0)) / d3_geo_radians ];
-    };
-    azimuthal.mode = function(x) {
+    treemap.mode = function(x) {
       if (!arguments.length) return mode;
       mode = x + "";
-      return azimuthal;
+      return treemap;
     };
-    azimuthal.origin = function(x) {
-      if (!arguments.length) return origin;
-      origin = x;
-      x0 = origin[0] * d3_geo_radians;
-      y0 = origin[1] * d3_geo_radians;
-      cy0 = Math.cos(y0);
-      sy0 = Math.sin(y0);
-      return azimuthal;
-    };
-    azimuthal.scale = function(x) {
-      if (!arguments.length) return scale;
-      scale = +x;
-      return azimuthal;
-    };
-    azimuthal.translate = function(x) {
-      if (!arguments.length) return translate;
-      translate = [ +x[0], +x[1] ];
-      return azimuthal;
-    };
-    return azimuthal.origin([ 0, 0 ]);
+    return d3_layout_hierarchyRebind(treemap, hierarchy);
   };
-  d3.geo.albers = function() {
-    function albers(coordinates) {
-      var t = n * (d3_geo_radians * coordinates[0] - lng0), p = Math.sqrt(C - 2 * n * Math.sin(d3_geo_radians * coordinates[1])) / n;
-      return [ scale * p * Math.sin(t) + translate[0], scale * (p * Math.cos(t) - p0) + translate[1] ];
+  function d3_layout_treemapPadNull(node) {
+    return {
+      x: node.x,
+      y: node.y,
+      dx: node.dx,
+      dy: node.dy
+    };
+  }
+  function d3_layout_treemapPad(node, padding) {
+    var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];
+    if (dx < 0) {
+      x += dx / 2;
+      dx = 0;
     }
-    function reload() {
-      var phi1 = d3_geo_radians * parallels[0], phi2 = d3_geo_radians * parallels[1], lat0 = d3_geo_radians * origin[1], s = Math.sin(phi1), c = Math.cos(phi1);
-      lng0 = d3_geo_radians * origin[0];
-      n = .5 * (s + Math.sin(phi2));
-      C = c * c + 2 * n * s;
-      p0 = Math.sqrt(C - 2 * n * Math.sin(lat0)) / n;
-      return albers;
+    if (dy < 0) {
+      y += dy / 2;
+      dy = 0;
     }
-    var origin = [ -98, 38 ], parallels = [ 29.5, 45.5 ], scale = 1e3, translate = [ 480, 250 ], lng0, n, C, p0;
-    albers.invert = function(coordinates) {
-      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale, p0y = p0 + y, t = Math.atan2(x, p0y), p = Math.sqrt(x * x + p0y * p0y);
-      return [ (lng0 + t / n) / d3_geo_radians, Math.asin((C - p * p * n * n) / (2 * n)) / d3_geo_radians ];
+    return {
+      x: x,
+      y: y,
+      dx: dx,
+      dy: dy
     };
-    albers.origin = function(x) {
-      if (!arguments.length) return origin;
-      origin = [ +x[0], +x[1] ];
-      return reload();
-    };
-    albers.parallels = function(x) {
-      if (!arguments.length) return parallels;
-      parallels = [ +x[0], +x[1] ];
-      return reload();
-    };
-    albers.scale = function(x) {
-      if (!arguments.length) return scale;
-      scale = +x;
-      return albers;
-    };
-    albers.translate = function(x) {
-      if (!arguments.length) return translate;
-      translate = [ +x[0], +x[1] ];
-      return albers;
-    };
-    return reload();
-  };
-  d3.geo.albersUsa = function() {
-    function albersUsa(coordinates) {
-      var lon = coordinates[0], lat = coordinates[1];
-      return (lat > 50 ? alaska : lon < -140 ? hawaii : lat < 21 ? puertoRico : lower48)(coordinates);
-    }
-    var lower48 = d3.geo.albers();
-    var alaska = d3.geo.albers().origin([ -160, 60 ]).parallels([ 55, 65 ]);
-    var hawaii = d3.geo.albers().origin([ -160, 20 ]).parallels([ 8, 18 ]);
-    var puertoRico = d3.geo.albers().origin([ -60, 10 ]).parallels([ 8, 18 ]);
-    albersUsa.scale = function(x) {
-      if (!arguments.length) return lower48.scale();
-      lower48.scale(x);
-      alaska.scale(x * .6);
-      hawaii.scale(x);
-      puertoRico.scale(x * 1.5);
-      return albersUsa.translate(lower48.translate());
-    };
-    albersUsa.translate = function(x) {
-      if (!arguments.length) return lower48.translate();
-      var dz = lower48.scale() / 1e3, dx = x[0], dy = x[1];
-      lower48.translate(x);
-      alaska.translate([ dx - 400 * dz, dy + 170 * dz ]);
-      hawaii.translate([ dx - 190 * dz, dy + 200 * dz ]);
-      puertoRico.translate([ dx + 580 * dz, dy + 430 * dz ]);
-      return albersUsa;
-    };
-    return albersUsa.scale(lower48.scale());
-  };
-  d3.geo.bonne = function() {
-    function bonne(coordinates) {
-      var x = coordinates[0] * d3_geo_radians - x0, y = coordinates[1] * d3_geo_radians - y0;
-      if (y1) {
-        var p = c1 + y1 - y, E = x * Math.cos(y) / p;
-        x = p * Math.sin(E);
-        y = p * Math.cos(E) - c1;
-      } else {
-        x *= Math.cos(y);
-        y *= -1;
-      }
-      return [ scale * x + translate[0], scale * y + translate[1] ];
-    }
-    var scale = 200, translate = [ 480, 250 ], x0, y0, y1, c1;
-    bonne.invert = function(coordinates) {
-      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;
-      if (y1) {
-        var c = c1 + y, p = Math.sqrt(x * x + c * c);
-        y = c1 + y1 - p;
-        x = x0 + p * Math.atan2(x, c) / Math.cos(y);
-      } else {
-        y *= -1;
-        x /= Math.cos(y);
-      }
-      return [ x / d3_geo_radians, y / d3_geo_radians ];
-    };
-    bonne.parallel = function(x) {
-      if (!arguments.length) return y1 / d3_geo_radians;
-      c1 = 1 / Math.tan(y1 = x * d3_geo_radians);
-      return bonne;
-    };
-    bonne.origin = function(x) {
-      if (!arguments.length) return [ x0 / d3_geo_radians, y0 / d3_geo_radians ];
-      x0 = x[0] * d3_geo_radians;
-      y0 = x[1] * d3_geo_radians;
-      return bonne;
-    };
-    bonne.scale = function(x) {
-      if (!arguments.length) return scale;
-      scale = +x;
-      return bonne;
-    };
-    bonne.translate = function(x) {
-      if (!arguments.length) return translate;
-      translate = [ +x[0], +x[1] ];
-      return bonne;
-    };
-    return bonne.origin([ 0, 0 ]).parallel(45);
-  };
-  d3.geo.equirectangular = function() {
-    function equirectangular(coordinates) {
-      var x = coordinates[0] / 360, y = -coordinates[1] / 360;
-      return [ scale * x + translate[0], scale * y + translate[1] ];
-    }
-    var scale = 500, translate = [ 480, 250 ];
-    equirectangular.invert = function(coordinates) {
-      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;
-      return [ 360 * x, -360 * y ];
-    };
-    equirectangular.scale = function(x) {
-      if (!arguments.length) return scale;
-      scale = +x;
-      return equirectangular;
-    };
-    equirectangular.translate = function(x) {
-      if (!arguments.length) return translate;
-      translate = [ +x[0], +x[1] ];
-      return equirectangular;
-    };
-    return equirectangular;
-  };
-  d3.geo.mercator = function() {
-    function mercator(coordinates) {
-      var x = coordinates[0] / 360, y = -(Math.log(Math.tan(Math.PI / 4 + coordinates[1] * d3_geo_radians / 2)) / d3_geo_radians) / 360;
-      return [ scale * x + translate[0], scale * Math.max(-.5, Math.min(.5, y)) + translate[1] ];
-    }
-    var scale = 500, translate = [ 480, 250 ];
-    mercator.invert = function(coordinates) {
-      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;
-      return [ 360 * x, 2 * Math.atan(Math.exp(-360 * y * d3_geo_radians)) / d3_geo_radians - 90 ];
-    };
-    mercator.scale = function(x) {
-      if (!arguments.length) return scale;
-      scale = +x;
-      return mercator;
-    };
-    mercator.translate = function(x) {
-      if (!arguments.length) return translate;
-      translate = [ +x[0], +x[1] ];
-      return mercator;
-    };
-    return mercator;
-  };
-  d3.geo.path = function() {
-    function path(d, i) {
-      if (typeof pointRadius === "function") pointCircle = d3_path_circle(pointRadius.apply(this, arguments));
-      pathType(d);
-      var result = buffer.length ? buffer.join("") : null;
-      buffer = [];
-      return result;
-    }
-    function project(coordinates) {
-      return projection(coordinates).join(",");
-    }
-    function polygonArea(coordinates) {
-      var sum = area(coordinates[0]), i = 0, n = coordinates.length;
-      while (++i < n) sum -= area(coordinates[i]);
-      return sum;
-    }
-    function polygonCentroid(coordinates) {
-      var polygon = d3.geom.polygon(coordinates[0].map(projection)), area = polygon.area(), centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1), x = centroid[0], y = centroid[1], z = area, i = 0, n = coordinates.length;
-      while (++i < n) {
-        polygon = d3.geom.polygon(coordinates[i].map(projection));
-        area = polygon.area();
-        centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1);
-        x -= centroid[0];
-        y -= centroid[1];
-        z -= area;
-      }
-      return [ x, y, 6 * z ];
-    }
-    function area(coordinates) {
-      return Math.abs(d3.geom.polygon(coordinates.map(projection)).area());
-    }
-    var pointRadius = 4.5, pointCircle = d3_path_circle(pointRadius), projection = d3.geo.albersUsa(), buffer = [];
-    var pathType = d3_geo_type({
-      FeatureCollection: function(o) {
-        var features = o.features, i = -1, n = features.length;
-        while (++i < n) buffer.push(pathType(features[i].geometry));
-      },
-      Feature: function(o) {
-        pathType(o.geometry);
-      },
-      Point: function(o) {
-        buffer.push("M", project(o.coordinates), pointCircle);
-      },
-      MultiPoint: function(o) {
-        var coordinates = o.coordinates, i = -1, n = coordinates.length;
-        while (++i < n) buffer.push("M", project(coordinates[i]), pointCircle);
-      },
-      LineString: function(o) {
-        var coordinates = o.coordinates, i = -1, n = coordinates.length;
-        buffer.push("M");
-        while (++i < n) buffer.push(project(coordinates[i]), "L");
-        buffer.pop();
-      },
-      MultiLineString: function(o) {
-        var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m;
-        while (++i < n) {
-          subcoordinates = coordinates[i];
-          j = -1;
-          m = subcoordinates.length;
-          buffer.push("M");
-          while (++j < m) buffer.push(project(subcoordinates[j]), "L");
-          buffer.pop();
-        }
-      },
-      Polygon: function(o) {
-        var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m;
-        while (++i < n) {
-          subcoordinates = coordinates[i];
-          j = -1;
-          if ((m = subcoordinates.length - 1) > 0) {
-            buffer.push("M");
-            while (++j < m) buffer.push(project(subcoordinates[j]), "L");
-            buffer[buffer.length - 1] = "Z";
-          }
-        }
-      },
-      MultiPolygon: function(o) {
-        var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m, subsubcoordinates, k, p;
-        while (++i < n) {
-          subcoordinates = coordinates[i];
-          j = -1;
-          m = subcoordinates.length;
-          while (++j < m) {
-            subsubcoordinates = subcoordinates[j];
-            k = -1;
-            if ((p = subsubcoordinates.length - 1) > 0) {
-              buffer.push("M");
-              while (++k < p) buffer.push(project(subsubcoordinates[k]), "L");
-              buffer[buffer.length - 1] = "Z";
-            }
-          }
-        }
-      },
-      GeometryCollection: function(o) {
-        var geometries = o.geometries, i = -1, n = geometries.length;
-        while (++i < n) buffer.push(pathType(geometries[i]));
-      }
-    });
-    var areaType = path.area = d3_geo_type({
-      FeatureCollection: function(o) {
-        var area = 0, features = o.features, i = -1, n = features.length;
-        while (++i < n) area += areaType(features[i]);
-        return area;
-      },
-      Feature: function(o) {
-        return areaType(o.geometry);
-      },
-      Polygon: function(o) {
-        return polygonArea(o.coordinates);
-      },
-      MultiPolygon: function(o) {
-        var sum = 0, coordinates = o.coordinates, i = -1, n = coordinates.length;
-        while (++i < n) sum += polygonArea(coordinates[i]);
-        return sum;
-      },
-      GeometryCollection: function(o) {
-        var sum = 0, geometries = o.geometries, i = -1, n = geometries.length;
-        while (++i < n) sum += areaType(geometries[i]);
-        return sum;
-      }
-    }, 0);
-    var centroidType = path.centroid = d3_geo_type({
-      Feature: function(o) {
-        return centroidType(o.geometry);
-      },
-      Polygon: function(o) {
-        var centroid = polygonCentroid(o.coordinates);
-        return [ centroid[0] / centroid[2], centroid[1] / centroid[2] ];
-      },
-      MultiPolygon: function(o) {
-        var area = 0, coordinates = o.coordinates, centroid, x = 0, y = 0, z = 0, i = -1, n = coordinates.length;
-        while (++i < n) {
-          centroid = polygonCentroid(coordinates[i]);
-          x += centroid[0];
-          y += centroid[1];
-          z += centroid[2];
-        }
-        return [ x / z, y / z ];
-      }
-    });
-    path.projection = function(x) {
-      projection = x;
-      return path;
-    };
-    path.pointRadius = function(x) {
-      if (typeof x === "function") pointRadius = x; else {
-        pointRadius = +x;
-        pointCircle = d3_path_circle(pointRadius);
-      }
-      return path;
-    };
-    return path;
-  };
-  d3.geo.bounds = function(feature) {
-    var left = Infinity, bottom = Infinity, right = -Infinity, top = -Infinity;
-    d3_geo_bounds(feature, function(x, y) {
-      if (x < left) left = x;
-      if (x > right) right = x;
-      if (y < bottom) bottom = y;
-      if (y > top) top = y;
-    });
-    return [ [ left, bottom ], [ right, top ] ];
-  };
-  var d3_geo_boundsTypes = {
-    Feature: d3_geo_boundsFeature,
-    FeatureCollection: d3_geo_boundsFeatureCollection,
-    GeometryCollection: d3_geo_boundsGeometryCollection,
-    LineString: d3_geo_boundsLineString,
-    MultiLineString: d3_geo_boundsMultiLineString,
-    MultiPoint: d3_geo_boundsLineString,
-    MultiPolygon: d3_geo_boundsMultiPolygon,
-    Point: d3_geo_boundsPoint,
-    Polygon: d3_geo_boundsPolygon
-  };
-  d3.geo.circle = function() {
-    function circle() {}
-    function visible(point) {
-      return arc.distance(point) < radians;
-    }
-    function clip(coordinates) {
-      var i = -1, n = coordinates.length, clipped = [], p0, p1, p2, d0, d1;
-      while (++i < n) {
-        d1 = arc.distance(p2 = coordinates[i]);
-        if (d1 < radians) {
-          if (p1) clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));
-          clipped.push(p2);
-          p0 = p1 = null;
-        } else {
-          p1 = p2;
-          if (!p0 && clipped.length) {
-            clipped.push(d3_geo_greatArcInterpolate(clipped[clipped.length - 1], p1)((radians - d0) / (d1 - d0)));
-            p0 = p1;
-          }
-        }
-        d0 = d1;
-      }
-      p0 = coordinates[0];
-      p1 = clipped[0];
-      if (p1 && p2[0] === p0[0] && p2[1] === p0[1] && !(p2[0] === p1[0] && p2[1] === p1[1])) {
-        clipped.push(p1);
-      }
-      return resample(clipped);
-    }
-    function resample(coordinates) {
-      var i = 0, n = coordinates.length, j, m, resampled = n ? [ coordinates[0] ] : coordinates, resamples, origin = arc.source();
-      while (++i < n) {
-        resamples = arc.source(coordinates[i - 1])(coordinates[i]).coordinates;
-        for (j = 0, m = resamples.length; ++j < m; ) resampled.push(resamples[j]);
-      }
-      arc.source(origin);
-      return resampled;
-    }
-    var origin = [ 0, 0 ], degrees = 90 - .01, radians = degrees * d3_geo_radians, arc = d3.geo.greatArc().source(origin).target(d3_identity);
-    circle.clip = function(d) {
-      if (typeof origin === "function") arc.source(origin.apply(this, arguments));
-      return clipType(d) || null;
-    };
-    var clipType = d3_geo_type({
-      FeatureCollection: function(o) {
-        var features = o.features.map(clipType).filter(d3_identity);
-        return features && (o = Object.create(o), o.features = features, o);
-      },
-      Feature: function(o) {
-        var geometry = clipType(o.geometry);
-        return geometry && (o = Object.create(o), o.geometry = geometry, o);
-      },
-      Point: function(o) {
-        return visible(o.coordinates) && o;
-      },
-      MultiPoint: function(o) {
-        var coordinates = o.coordinates.filter(visible);
-        return coordinates.length && {
-          type: o.type,
-          coordinates: coordinates
-        };
-      },
-      LineString: function(o) {
-        var coordinates = clip(o.coordinates);
-        return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
-      },
-      MultiLineString: function(o) {
-        var coordinates = o.coordinates.map(clip).filter(function(d) {
-          return d.length;
-        });
-        return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
-      },
-      Polygon: function(o) {
-        var coordinates = o.coordinates.map(clip);
-        return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o);
-      },
-      MultiPolygon: function(o) {
-        var coordinates = o.coordinates.map(function(d) {
-          return d.map(clip);
-        }).filter(function(d) {
-          return d[0].length;
-        });
-        return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
-      },
-      GeometryCollection: function(o) {
-        var geometries = o.geometries.map(clipType).filter(d3_identity);
-        return geometries.length && (o = Object.create(o), o.geometries = geometries, o);
-      }
-    });
-    circle.origin = function(x) {
-      if (!arguments.length) return origin;
-      origin = x;
-      if (typeof origin !== "function") arc.source(origin);
-      return circle;
-    };
-    circle.angle = function(x) {
-      if (!arguments.length) return degrees;
-      radians = (degrees = +x) * d3_geo_radians;
-      return circle;
-    };
-    return d3.rebind(circle, arc, "precision");
-  };
-  d3.geo.greatArc = function() {
-    function greatArc() {
-      var d = greatArc.distance.apply(this, arguments), t = 0, dt = precision / d, coordinates = [ p0 ];
-      while ((t += dt) < 1) coordinates.push(interpolate(t));
-      coordinates.push(p1);
-      return {
-        type: "LineString",
-        coordinates: coordinates
+  }
+  d3.random = {
+    normal: function(µ, σ) {
+      var n = arguments.length;
+      if (n < 2) σ = 1;
+      if (n < 1) µ = 0;
+      return function() {
+        var x, y, r;
+        do {
+          x = Math.random() * 2 - 1;
+          y = Math.random() * 2 - 1;
+          r = x * x + y * y;
+        } while (!r || r > 1);
+        return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);
+      };
+    },
+    logNormal: function() {
+      var random = d3.random.normal.apply(d3, arguments);
+      return function() {
+        return Math.exp(random());
+      };
+    },
+    irwinHall: function(m) {
+      return function() {
+        for (var s = 0, j = 0; j < m; j++) s += Math.random();
+        return s / m;
       };
     }
-    var source = d3_geo_greatArcSource, p0, target = d3_geo_greatArcTarget, p1, precision = 6 * d3_geo_radians, interpolate = d3_geo_greatArcInterpolator();
-    greatArc.distance = function() {
-      if (typeof source === "function") interpolate.source(p0 = source.apply(this, arguments));
-      if (typeof target === "function") interpolate.target(p1 = target.apply(this, arguments));
-      return interpolate.distance();
+  };
+  d3.scale = {};
+  function d3_scaleExtent(domain) {
+    var start = domain[0], stop = domain[domain.length - 1];
+    return start < stop ? [ start, stop ] : [ stop, start ];
+  }
+  function d3_scaleRange(scale) {
+    return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
+  }
+  function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
+    var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);
+    return function(x) {
+      return i(u(x));
     };
-    greatArc.source = function(_) {
+  }
+  function d3_scale_nice(domain, nice) {
+    var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;
+    if (x1 < x0) {
+      dx = i0, i0 = i1, i1 = dx;
+      dx = x0, x0 = x1, x1 = dx;
+    }
+    if (nice = nice(x1 - x0)) {
+      domain[i0] = nice.floor(x0);
+      domain[i1] = nice.ceil(x1);
+    }
+    return domain;
+  }
+  function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
+    var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;
+    if (domain[k] < domain[0]) {
+      domain = domain.slice().reverse();
+      range = range.slice().reverse();
+    }
+    while (++j <= k) {
+      u.push(uninterpolate(domain[j - 1], domain[j]));
+      i.push(interpolate(range[j - 1], range[j]));
+    }
+    return function(x) {
+      var j = d3.bisect(domain, x, 1, k) - 1;
+      return i[j](u[j](x));
+    };
+  }
+  d3.scale.linear = function() {
+    return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3_interpolate, false);
+  };
+  function d3_scale_linear(domain, range, interpolate, clamp) {
+    var output, input;
+    function rescale() {
+      var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
+      output = linear(domain, range, uninterpolate, interpolate);
+      input = linear(range, domain, uninterpolate, d3_interpolate);
+      return scale;
+    }
+    function scale(x) {
+      return output(x);
+    }
+    scale.invert = function(y) {
+      return input(y);
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.map(Number);
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.rangeRound = function(x) {
+      return scale.range(x).interpolate(d3_interpolateRound);
+    };
+    scale.clamp = function(x) {
+      if (!arguments.length) return clamp;
+      clamp = x;
+      return rescale();
+    };
+    scale.interpolate = function(x) {
+      if (!arguments.length) return interpolate;
+      interpolate = x;
+      return rescale();
+    };
+    scale.ticks = function(m) {
+      return d3_scale_linearTicks(domain, m);
+    };
+    scale.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(domain, m, format);
+    };
+    scale.nice = function() {
+      d3_scale_nice(domain, d3_scale_linearNice);
+      return rescale();
+    };
+    scale.copy = function() {
+      return d3_scale_linear(domain, range, interpolate, clamp);
+    };
+    return rescale();
+  }
+  function d3_scale_linearRebind(scale, linear) {
+    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
+  }
+  function d3_scale_linearNice(dx) {
+    dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);
+    return dx && {
+      floor: function(x) {
+        return Math.floor(x / dx) * dx;
+      },
+      ceil: function(x) {
+        return Math.ceil(x / dx) * dx;
+      }
+    };
+  }
+  function d3_scale_linearTickRange(domain, m) {
+    var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;
+    if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;
+    extent[0] = Math.ceil(extent[0] / step) * step;
+    extent[1] = Math.floor(extent[1] / step) * step + step * .5;
+    extent[2] = step;
+    return extent;
+  }
+  function d3_scale_linearTicks(domain, m) {
+    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
+  }
+  function d3_scale_linearTickFormat(domain, m, format) {
+    var precision = -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01);
+    return d3.format(format ? format.replace(d3_format_re, function(a, b, c, d, e, f, g, h, i, j) {
+      return [ b, c, d, e, f, g, h, i || "." + (precision - (j === "%") * 2), j ].join("");
+    }) : ",." + precision + "f");
+  }
+  d3.scale.log = function() {
+    return d3_scale_log(d3.scale.linear().domain([ 0, Math.LN10 ]), 10, d3_scale_logp, d3_scale_powp);
+  };
+  function d3_scale_log(linear, base, log, pow) {
+    function scale(x) {
+      return linear(log(x));
+    }
+    scale.invert = function(x) {
+      return pow(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return linear.domain().map(pow);
+      if (x[0] < 0) log = d3_scale_logn, pow = d3_scale_pown; else log = d3_scale_logp,
+      pow = d3_scale_powp;
+      linear.domain(x.map(log));
+      return scale;
+    };
+    scale.base = function(_) {
+      if (!arguments.length) return base;
+      base = +_;
+      return scale;
+    };
+    scale.nice = function() {
+      linear.domain(d3_scale_nice(linear.domain(), d3_scale_logNice(base)));
+      return scale;
+    };
+    scale.ticks = function() {
+      var extent = d3_scaleExtent(linear.domain()), ticks = [];
+      if (extent.every(isFinite)) {
+        var b = Math.log(base), i = Math.floor(extent[0] / b), j = Math.ceil(extent[1] / b), u = pow(extent[0]), v = pow(extent[1]), n = base % 1 ? 2 : base;
+        if (log === d3_scale_logn) {
+          ticks.push(-Math.pow(base, -i));
+          for (;i++ < j; ) for (var k = n - 1; k > 0; k--) ticks.push(-Math.pow(base, -i) * k);
+        } else {
+          for (;i < j; i++) for (var k = 1; k < n; k++) ticks.push(Math.pow(base, i) * k);
+          ticks.push(Math.pow(base, i));
+        }
+        for (i = 0; ticks[i] < u; i++) {}
+        for (j = ticks.length; ticks[j - 1] > v; j--) {}
+        ticks = ticks.slice(i, j);
+      }
+      return ticks;
+    };
+    scale.tickFormat = function(n, format) {
+      if (arguments.length < 2) format = d3_scale_logFormat;
+      if (!arguments.length) return format;
+      var b = Math.log(base), k = Math.max(.1, n / scale.ticks().length), f = log === d3_scale_logn ? (e = -1e-12,
+      Math.floor) : (e = 1e-12, Math.ceil), e;
+      return function(d) {
+        return d / pow(b * f(log(d) / b + e)) <= k ? format(d) : "";
+      };
+    };
+    scale.copy = function() {
+      return d3_scale_log(linear.copy(), base, log, pow);
+    };
+    return d3_scale_linearRebind(scale, linear);
+  }
+  var d3_scale_logFormat = d3.format(".0e");
+  function d3_scale_logp(x) {
+    return Math.log(x < 0 ? 0 : x);
+  }
+  function d3_scale_powp(x) {
+    return Math.exp(x);
+  }
+  function d3_scale_logn(x) {
+    return -Math.log(x > 0 ? 0 : -x);
+  }
+  function d3_scale_pown(x) {
+    return -Math.exp(-x);
+  }
+  function d3_scale_logNice(base) {
+    base = Math.log(base);
+    var nice = {
+      floor: function(x) {
+        return Math.floor(x / base) * base;
+      },
+      ceil: function(x) {
+        return Math.ceil(x / base) * base;
+      }
+    };
+    return function() {
+      return nice;
+    };
+  }
+  d3.scale.pow = function() {
+    return d3_scale_pow(d3.scale.linear(), 1);
+  };
+  function d3_scale_pow(linear, exponent) {
+    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);
+    function scale(x) {
+      return linear(powp(x));
+    }
+    scale.invert = function(x) {
+      return powb(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return linear.domain().map(powb);
+      linear.domain(x.map(powp));
+      return scale;
+    };
+    scale.ticks = function(m) {
+      return d3_scale_linearTicks(scale.domain(), m);
+    };
+    scale.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(scale.domain(), m, format);
+    };
+    scale.nice = function() {
+      return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));
+    };
+    scale.exponent = function(x) {
+      if (!arguments.length) return exponent;
+      var domain = scale.domain();
+      powp = d3_scale_powPow(exponent = x);
+      powb = d3_scale_powPow(1 / exponent);
+      return scale.domain(domain);
+    };
+    scale.copy = function() {
+      return d3_scale_pow(linear.copy(), exponent);
+    };
+    return d3_scale_linearRebind(scale, linear);
+  }
+  function d3_scale_powPow(e) {
+    return function(x) {
+      return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
+    };
+  }
+  d3.scale.sqrt = function() {
+    return d3.scale.pow().exponent(.5);
+  };
+  d3.scale.ordinal = function() {
+    return d3_scale_ordinal([], {
+      t: "range",
+      a: [ [] ]
+    });
+  };
+  function d3_scale_ordinal(domain, ranger) {
+    var index, range, rangeBand;
+    function scale(x) {
+      return range[((index.get(x) || index.set(x, domain.push(x))) - 1) % range.length];
+    }
+    function steps(start, step) {
+      return d3.range(domain.length).map(function(i) {
+        return start + step * i;
+      });
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = [];
+      index = new d3_Map();
+      var i = -1, n = x.length, xi;
+      while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
+      return scale[ranger.t].apply(scale, ranger.a);
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      rangeBand = 0;
+      ranger = {
+        t: "range",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangePoints = function(x, padding) {
+      if (arguments.length < 2) padding = 0;
+      var start = x[0], stop = x[1], step = (stop - start) / (Math.max(1, domain.length - 1) + padding);
+      range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step);
+      rangeBand = 0;
+      ranger = {
+        t: "rangePoints",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeBands = function(x, padding, outerPadding) {
+      if (arguments.length < 2) padding = 0;
+      if (arguments.length < 3) outerPadding = padding;
+      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);
+      range = steps(start + step * outerPadding, step);
+      if (reverse) range.reverse();
+      rangeBand = step * (1 - padding);
+      ranger = {
+        t: "rangeBands",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeRoundBands = function(x, padding, outerPadding) {
+      if (arguments.length < 2) padding = 0;
+      if (arguments.length < 3) outerPadding = padding;
+      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding)), error = stop - start - (domain.length - padding) * step;
+      range = steps(start + Math.round(error / 2), step);
+      if (reverse) range.reverse();
+      rangeBand = Math.round(step * (1 - padding));
+      ranger = {
+        t: "rangeRoundBands",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeBand = function() {
+      return rangeBand;
+    };
+    scale.rangeExtent = function() {
+      return d3_scaleExtent(ranger.a[0]);
+    };
+    scale.copy = function() {
+      return d3_scale_ordinal(domain, ranger);
+    };
+    return scale.domain(domain);
+  }
+  d3.scale.category10 = function() {
+    return d3.scale.ordinal().range(d3_category10);
+  };
+  d3.scale.category20 = function() {
+    return d3.scale.ordinal().range(d3_category20);
+  };
+  d3.scale.category20b = function() {
+    return d3.scale.ordinal().range(d3_category20b);
+  };
+  d3.scale.category20c = function() {
+    return d3.scale.ordinal().range(d3_category20c);
+  };
+  var d3_category10 = [ "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf" ];
+  var d3_category20 = [ "#1f77b4", "#aec7e8", "#ff7f0e", "#ffbb78", "#2ca02c", "#98df8a", "#d62728", "#ff9896", "#9467bd", "#c5b0d5", "#8c564b", "#c49c94", "#e377c2", "#f7b6d2", "#7f7f7f", "#c7c7c7", "#bcbd22", "#dbdb8d", "#17becf", "#9edae5" ];
+  var d3_category20b = [ "#393b79", "#5254a3", "#6b6ecf", "#9c9ede", "#637939", "#8ca252", "#b5cf6b", "#cedb9c", "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94", "#843c39", "#ad494a", "#d6616b", "#e7969c", "#7b4173", "#a55194", "#ce6dbd", "#de9ed6" ];
+  var d3_category20c = [ "#3182bd", "#6baed6", "#9ecae1", "#c6dbef", "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2", "#31a354", "#74c476", "#a1d99b", "#c7e9c0", "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb", "#636363", "#969696", "#bdbdbd", "#d9d9d9" ];
+  d3.scale.quantile = function() {
+    return d3_scale_quantile([], []);
+  };
+  function d3_scale_quantile(domain, range) {
+    var thresholds;
+    function rescale() {
+      var k = 0, q = range.length;
+      thresholds = [];
+      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
+      return scale;
+    }
+    function scale(x) {
+      if (isNaN(x = +x)) return NaN;
+      return range[d3.bisect(thresholds, x)];
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.filter(function(d) {
+        return !isNaN(d);
+      }).sort(d3.ascending);
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.quantiles = function() {
+      return thresholds;
+    };
+    scale.copy = function() {
+      return d3_scale_quantile(domain, range);
+    };
+    return rescale();
+  }
+  d3.scale.quantize = function() {
+    return d3_scale_quantize(0, 1, [ 0, 1 ]);
+  };
+  function d3_scale_quantize(x0, x1, range) {
+    var kx, i;
+    function scale(x) {
+      return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
+    }
+    function rescale() {
+      kx = range.length / (x1 - x0);
+      i = range.length - 1;
+      return scale;
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return [ x0, x1 ];
+      x0 = +x[0];
+      x1 = +x[x.length - 1];
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.copy = function() {
+      return d3_scale_quantize(x0, x1, range);
+    };
+    return rescale();
+  }
+  d3.scale.threshold = function() {
+    return d3_scale_threshold([ .5 ], [ 0, 1 ]);
+  };
+  function d3_scale_threshold(domain, range) {
+    function scale(x) {
+      return range[d3.bisect(domain, x)];
+    }
+    scale.domain = function(_) {
+      if (!arguments.length) return domain;
+      domain = _;
+      return scale;
+    };
+    scale.range = function(_) {
+      if (!arguments.length) return range;
+      range = _;
+      return scale;
+    };
+    scale.copy = function() {
+      return d3_scale_threshold(domain, range);
+    };
+    return scale;
+  }
+  d3.scale.identity = function() {
+    return d3_scale_identity([ 0, 1 ]);
+  };
+  function d3_scale_identity(domain) {
+    function identity(x) {
+      return +x;
+    }
+    identity.invert = identity;
+    identity.domain = identity.range = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.map(identity);
+      return identity;
+    };
+    identity.ticks = function(m) {
+      return d3_scale_linearTicks(domain, m);
+    };
+    identity.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(domain, m, format);
+    };
+    identity.copy = function() {
+      return d3_scale_identity(domain);
+    };
+    return identity;
+  }
+  d3.svg.arc = function() {
+    var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
+    function arc() {
+      var r0 = innerRadius.apply(this, arguments), r1 = outerRadius.apply(this, arguments), a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset, a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset, da = (a1 < a0 && (da = a0,
+      a0 = a1, a1 = da), a1 - a0), df = da < π ? "0" : "1", c0 = Math.cos(a0), s0 = Math.sin(a0), c1 = Math.cos(a1), s1 = Math.sin(a1);
+      return da >= d3_svg_arcMax ? r0 ? "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "M0," + r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + -r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + r0 + "Z" : "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "Z" : r0 ? "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L" + r0 * c1 + "," + r0 * s1 + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0 + "Z" : "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L0,0" + "Z";
+    }
+    arc.innerRadius = function(v) {
+      if (!arguments.length) return innerRadius;
+      innerRadius = d3_functor(v);
+      return arc;
+    };
+    arc.outerRadius = function(v) {
+      if (!arguments.length) return outerRadius;
+      outerRadius = d3_functor(v);
+      return arc;
+    };
+    arc.startAngle = function(v) {
+      if (!arguments.length) return startAngle;
+      startAngle = d3_functor(v);
+      return arc;
+    };
+    arc.endAngle = function(v) {
+      if (!arguments.length) return endAngle;
+      endAngle = d3_functor(v);
+      return arc;
+    };
+    arc.centroid = function() {
+      var r = (innerRadius.apply(this, arguments) + outerRadius.apply(this, arguments)) / 2, a = (startAngle.apply(this, arguments) + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;
+      return [ Math.cos(a) * r, Math.sin(a) * r ];
+    };
+    return arc;
+  };
+  var d3_svg_arcOffset = -π / 2, d3_svg_arcMax = 2 * π - 1e-6;
+  function d3_svg_arcInnerRadius(d) {
+    return d.innerRadius;
+  }
+  function d3_svg_arcOuterRadius(d) {
+    return d.outerRadius;
+  }
+  function d3_svg_arcStartAngle(d) {
+    return d.startAngle;
+  }
+  function d3_svg_arcEndAngle(d) {
+    return d.endAngle;
+  }
+  d3.svg.line.radial = function() {
+    var line = d3_svg_line(d3_svg_lineRadial);
+    line.radius = line.x, delete line.x;
+    line.angle = line.y, delete line.y;
+    return line;
+  };
+  function d3_svg_lineRadial(points) {
+    var point, i = -1, n = points.length, r, a;
+    while (++i < n) {
+      point = points[i];
+      r = point[0];
+      a = point[1] + d3_svg_arcOffset;
+      point[0] = r * Math.cos(a);
+      point[1] = r * Math.sin(a);
+    }
+    return points;
+  }
+  function d3_svg_area(projection) {
+    var x0 = d3_svg_lineX, x1 = d3_svg_lineX, y0 = 0, y1 = d3_svg_lineY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;
+    function area(data) {
+      var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {
+        return x;
+      } : d3_functor(x1), fy1 = y0 === y1 ? function() {
+        return y;
+      } : d3_functor(y1), x, y;
+      function segment() {
+        segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");
+      }
+      while (++i < n) {
+        if (defined.call(this, d = data[i], i)) {
+          points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);
+          points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);
+        } else if (points0.length) {
+          segment();
+          points0 = [];
+          points1 = [];
+        }
+      }
+      if (points0.length) segment();
+      return segments.length ? segments.join("") : null;
+    }
+    area.x = function(_) {
+      if (!arguments.length) return x1;
+      x0 = x1 = _;
+      return area;
+    };
+    area.x0 = function(_) {
+      if (!arguments.length) return x0;
+      x0 = _;
+      return area;
+    };
+    area.x1 = function(_) {
+      if (!arguments.length) return x1;
+      x1 = _;
+      return area;
+    };
+    area.y = function(_) {
+      if (!arguments.length) return y1;
+      y0 = y1 = _;
+      return area;
+    };
+    area.y0 = function(_) {
+      if (!arguments.length) return y0;
+      y0 = _;
+      return area;
+    };
+    area.y1 = function(_) {
+      if (!arguments.length) return y1;
+      y1 = _;
+      return area;
+    };
+    area.defined = function(_) {
+      if (!arguments.length) return defined;
+      defined = _;
+      return area;
+    };
+    area.interpolate = function(_) {
+      if (!arguments.length) return interpolateKey;
+      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
+      interpolateReverse = interpolate.reverse || interpolate;
+      L = interpolate.closed ? "M" : "L";
+      return area;
+    };
+    area.tension = function(_) {
+      if (!arguments.length) return tension;
+      tension = _;
+      return area;
+    };
+    return area;
+  }
+  d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
+  d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
+  d3.svg.area = function() {
+    return d3_svg_area(d3_identity);
+  };
+  d3.svg.area.radial = function() {
+    var area = d3_svg_area(d3_svg_lineRadial);
+    area.radius = area.x, delete area.x;
+    area.innerRadius = area.x0, delete area.x0;
+    area.outerRadius = area.x1, delete area.x1;
+    area.angle = area.y, delete area.y;
+    area.startAngle = area.y0, delete area.y0;
+    area.endAngle = area.y1, delete area.y1;
+    return area;
+  };
+  d3.svg.chord = function() {
+    var source = d3_source, target = d3_target, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
+    function chord(d, i) {
+      var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);
+      return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z";
+    }
+    function subgroup(self, f, d, i) {
+      var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset, a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
+      return {
+        r: r,
+        a0: a0,
+        a1: a1,
+        p0: [ r * Math.cos(a0), r * Math.sin(a0) ],
+        p1: [ r * Math.cos(a1), r * Math.sin(a1) ]
+      };
+    }
+    function equals(a, b) {
+      return a.a0 == b.a0 && a.a1 == b.a1;
+    }
+    function arc(r, p, a) {
+      return "A" + r + "," + r + " 0 " + +(a > π) + ",1 " + p;
+    }
+    function curve(r0, p0, r1, p1) {
+      return "Q 0,0 " + p1;
+    }
+    chord.radius = function(v) {
+      if (!arguments.length) return radius;
+      radius = d3_functor(v);
+      return chord;
+    };
+    chord.source = function(v) {
       if (!arguments.length) return source;
-      source = _;
-      if (typeof source !== "function") interpolate.source(p0 = source);
-      return greatArc;
+      source = d3_functor(v);
+      return chord;
     };
-    greatArc.target = function(_) {
+    chord.target = function(v) {
       if (!arguments.length) return target;
-      target = _;
-      if (typeof target !== "function") interpolate.target(p1 = target);
-      return greatArc;
+      target = d3_functor(v);
+      return chord;
     };
-    greatArc.precision = function(_) {
-      if (!arguments.length) return precision / d3_geo_radians;
-      precision = _ * d3_geo_radians;
-      return greatArc;
+    chord.startAngle = function(v) {
+      if (!arguments.length) return startAngle;
+      startAngle = d3_functor(v);
+      return chord;
     };
-    return greatArc;
+    chord.endAngle = function(v) {
+      if (!arguments.length) return endAngle;
+      endAngle = d3_functor(v);
+      return chord;
+    };
+    return chord;
   };
-  d3.geo.greatCircle = d3.geo.circle;
-  d3.geom = {};
-  d3.geom.contour = function(grid, start) {
-    var s = start || d3_geom_contourStart(grid), c = [], x = s[0], y = s[1], dx = 0, dy = 0, pdx = NaN, pdy = NaN, i = 0;
-    do {
-      i = 0;
-      if (grid(x - 1, y - 1)) i += 1;
-      if (grid(x, y - 1)) i += 2;
-      if (grid(x - 1, y)) i += 4;
-      if (grid(x, y)) i += 8;
-      if (i === 6) {
-        dx = pdy === -1 ? -1 : 1;
-        dy = 0;
-      } else if (i === 9) {
-        dx = 0;
-        dy = pdx === 1 ? -1 : 1;
-      } else {
-        dx = d3_geom_contourDx[i];
-        dy = d3_geom_contourDy[i];
-      }
-      if (dx != pdx && dy != pdy) {
-        c.push([ x, y ]);
-        pdx = dx;
-        pdy = dy;
-      }
-      x += dx;
-      y += dy;
-    } while (s[0] != x || s[1] != y);
-    return c;
+  function d3_svg_chordRadius(d) {
+    return d.radius;
+  }
+  d3.svg.diagonal = function() {
+    var source = d3_source, target = d3_target, projection = d3_svg_diagonalProjection;
+    function diagonal(d, i) {
+      var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {
+        x: p0.x,
+        y: m
+      }, {
+        x: p3.x,
+        y: m
+      }, p3 ];
+      p = p.map(projection);
+      return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
+    }
+    diagonal.source = function(x) {
+      if (!arguments.length) return source;
+      source = d3_functor(x);
+      return diagonal;
+    };
+    diagonal.target = function(x) {
+      if (!arguments.length) return target;
+      target = d3_functor(x);
+      return diagonal;
+    };
+    diagonal.projection = function(x) {
+      if (!arguments.length) return projection;
+      projection = x;
+      return diagonal;
+    };
+    return diagonal;
   };
-  var d3_geom_contourDx = [ 1, 0, 1, 1, -1, 0, -1, 1, 0, 0, 0, 0, -1, 0, -1, NaN ], d3_geom_contourDy = [ 0, -1, 0, 0, 0, -1, 0, 0, 1, -1, 1, 1, 0, -1, 0, NaN ];
-  d3.geom.hull = function(vertices) {
-    if (vertices.length < 3) return [];
-    var len = vertices.length, plen = len - 1, points = [], stack = [], i, j, h = 0, x1, y1, x2, y2, u, v, a, sp;
-    for (i = 1; i < len; ++i) {
-      if (vertices[i][1] < vertices[h][1]) {
-        h = i;
-      } else if (vertices[i][1] == vertices[h][1]) {
-        h = vertices[i][0] < vertices[h][0] ? i : h;
+  function d3_svg_diagonalProjection(d) {
+    return [ d.x, d.y ];
+  }
+  d3.svg.diagonal.radial = function() {
+    var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;
+    diagonal.projection = function(x) {
+      return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;
+    };
+    return diagonal;
+  };
+  function d3_svg_diagonalRadialProjection(projection) {
+    return function() {
+      var d = projection.apply(this, arguments), r = d[0], a = d[1] + d3_svg_arcOffset;
+      return [ r * Math.cos(a), r * Math.sin(a) ];
+    };
+  }
+  d3.svg.symbol = function() {
+    var type = d3_svg_symbolType, size = d3_svg_symbolSize;
+    function symbol(d, i) {
+      return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));
+    }
+    symbol.type = function(x) {
+      if (!arguments.length) return type;
+      type = d3_functor(x);
+      return symbol;
+    };
+    symbol.size = function(x) {
+      if (!arguments.length) return size;
+      size = d3_functor(x);
+      return symbol;
+    };
+    return symbol;
+  };
+  function d3_svg_symbolSize() {
+    return 64;
+  }
+  function d3_svg_symbolType() {
+    return "circle";
+  }
+  function d3_svg_symbolCircle(size) {
+    var r = Math.sqrt(size / π);
+    return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";
+  }
+  var d3_svg_symbols = d3.map({
+    circle: d3_svg_symbolCircle,
+    cross: function(size) {
+      var r = Math.sqrt(size / 5) / 2;
+      return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z";
+    },
+    diamond: function(size) {
+      var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;
+      return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z";
+    },
+    square: function(size) {
+      var r = Math.sqrt(size) / 2;
+      return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z";
+    },
+    "triangle-down": function(size) {
+      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
+      return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z";
+    },
+    "triangle-up": function(size) {
+      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
+      return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z";
+    }
+  });
+  d3.svg.symbolTypes = d3_svg_symbols.keys();
+  var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * d3_radians);
+  function d3_transition(groups, id) {
+    d3_arraySubclass(groups, d3_transitionPrototype);
+    groups.id = id;
+    return groups;
+  }
+  var d3_transitionPrototype = [], d3_transitionId = 0, d3_transitionInheritId, d3_transitionInherit = {
+    ease: d3_ease_cubicInOut,
+    delay: 0,
+    duration: 250
+  };
+  d3_transitionPrototype.call = d3_selectionPrototype.call;
+  d3_transitionPrototype.empty = d3_selectionPrototype.empty;
+  d3_transitionPrototype.node = d3_selectionPrototype.node;
+  d3.transition = function(selection) {
+    return arguments.length ? d3_transitionInheritId ? selection.transition() : selection : d3_selectionRoot.transition();
+  };
+  d3.transition.prototype = d3_transitionPrototype;
+  d3_transitionPrototype.select = function(selector) {
+    var id = this.id, subgroups = [], subgroup, subnode, node;
+    if (typeof selector !== "function") selector = d3_selection_selector(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if ((node = group[i]) && (subnode = selector.call(node, node.__data__, i))) {
+          if ("__data__" in node) subnode.__data__ = node.__data__;
+          d3_transitionNode(subnode, i, id, node.__transition__[id]);
+          subgroup.push(subnode);
+        } else {
+          subgroup.push(null);
+        }
       }
     }
-    for (i = 0; i < len; ++i) {
-      if (i === h) continue;
-      y1 = vertices[i][1] - vertices[h][1];
-      x1 = vertices[i][0] - vertices[h][0];
-      points.push({
-        angle: Math.atan2(y1, x1),
-        index: i
+    return d3_transition(subgroups, id);
+  };
+  d3_transitionPrototype.selectAll = function(selector) {
+    var id = this.id, subgroups = [], subgroup, subnodes, node, subnode, transition;
+    if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          transition = node.__transition__[id];
+          subnodes = selector.call(node, node.__data__, i);
+          subgroups.push(subgroup = []);
+          for (var k = -1, o = subnodes.length; ++k < o; ) {
+            d3_transitionNode(subnode = subnodes[k], k, id, transition);
+            subgroup.push(subnode);
+          }
+        }
+      }
+    }
+    return d3_transition(subgroups, id);
+  };
+  d3_transitionPrototype.filter = function(filter) {
+    var subgroups = [], subgroup, group, node;
+    if (typeof filter !== "function") filter = d3_selection_filter(filter);
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        if ((node = group[i]) && filter.call(node, node.__data__, i)) {
+          subgroup.push(node);
+        }
+      }
+    }
+    return d3_transition(subgroups, this.id, this.time).ease(this.ease());
+  };
+  d3_transitionPrototype.tween = function(name, tween) {
+    var id = this.id;
+    if (arguments.length < 2) return this.node().__transition__[id].tween.get(name);
+    return d3_selection_each(this, tween == null ? function(node) {
+      node.__transition__[id].tween.remove(name);
+    } : function(node) {
+      node.__transition__[id].tween.set(name, tween);
+    });
+  };
+  function d3_transition_tween(groups, name, value, tween) {
+    var id = groups.id;
+    return d3_selection_each(groups, typeof value === "function" ? function(node, i, j) {
+      node.__transition__[id].tween.set(name, tween(value.call(node, node.__data__, i, j)));
+    } : (value = tween(value), function(node) {
+      node.__transition__[id].tween.set(name, value);
+    }));
+  }
+  d3_transitionPrototype.attr = function(nameNS, value) {
+    if (arguments.length < 2) {
+      for (value in nameNS) this.attr(value, nameNS[value]);
+      return this;
+    }
+    var interpolate = d3_interpolateByName(nameNS), name = d3.ns.qualify(nameNS);
+    function attrNull() {
+      this.removeAttribute(name);
+    }
+    function attrNullNS() {
+      this.removeAttributeNS(name.space, name.local);
+    }
+    return d3_transition_tween(this, "attr." + nameNS, value, function(b) {
+      function attrString() {
+        var a = this.getAttribute(name), i;
+        return a !== b && (i = interpolate(a, b), function(t) {
+          this.setAttribute(name, i(t));
+        });
+      }
+      function attrStringNS() {
+        var a = this.getAttributeNS(name.space, name.local), i;
+        return a !== b && (i = interpolate(a, b), function(t) {
+          this.setAttributeNS(name.space, name.local, i(t));
+        });
+      }
+      return b == null ? name.local ? attrNullNS : attrNull : (b += "", name.local ? attrStringNS : attrString);
+    });
+  };
+  d3_transitionPrototype.attrTween = function(nameNS, tween) {
+    var name = d3.ns.qualify(nameNS);
+    function attrTween(d, i) {
+      var f = tween.call(this, d, i, this.getAttribute(name));
+      return f && function(t) {
+        this.setAttribute(name, f(t));
+      };
+    }
+    function attrTweenNS(d, i) {
+      var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
+      return f && function(t) {
+        this.setAttributeNS(name.space, name.local, f(t));
+      };
+    }
+    return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
+  };
+  d3_transitionPrototype.style = function(name, value, priority) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof name !== "string") {
+        if (n < 2) value = "";
+        for (priority in name) this.style(priority, name[priority], value);
+        return this;
+      }
+      priority = "";
+    }
+    var interpolate = d3_interpolateByName(name);
+    function styleNull() {
+      this.style.removeProperty(name);
+    }
+    return d3_transition_tween(this, "style." + name, value, function(b) {
+      function styleString() {
+        var a = d3_window.getComputedStyle(this, null).getPropertyValue(name), i;
+        return a !== b && (i = interpolate(a, b), function(t) {
+          this.style.setProperty(name, i(t), priority);
+        });
+      }
+      return b == null ? styleNull : (b += "", styleString);
+    });
+  };
+  d3_transitionPrototype.styleTween = function(name, tween, priority) {
+    if (arguments.length < 3) priority = "";
+    return this.tween("style." + name, function(d, i) {
+      var f = tween.call(this, d, i, d3_window.getComputedStyle(this, null).getPropertyValue(name));
+      return f && function(t) {
+        this.style.setProperty(name, f(t), priority);
+      };
+    });
+  };
+  d3_transitionPrototype.text = function(value) {
+    return d3_transition_tween(this, "text", value, d3_transition_text);
+  };
+  function d3_transition_text(b) {
+    if (b == null) b = "";
+    return function() {
+      this.textContent = b;
+    };
+  }
+  d3_transitionPrototype.remove = function() {
+    return this.each("end.transition", function() {
+      var p;
+      if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);
+    });
+  };
+  d3_transitionPrototype.ease = function(value) {
+    var id = this.id;
+    if (arguments.length < 1) return this.node().__transition__[id].ease;
+    if (typeof value !== "function") value = d3.ease.apply(d3, arguments);
+    return d3_selection_each(this, function(node) {
+      node.__transition__[id].ease = value;
+    });
+  };
+  d3_transitionPrototype.delay = function(value) {
+    var id = this.id;
+    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
+      node.__transition__[id].delay = value.call(node, node.__data__, i, j) | 0;
+    } : (value |= 0, function(node) {
+      node.__transition__[id].delay = value;
+    }));
+  };
+  d3_transitionPrototype.duration = function(value) {
+    var id = this.id;
+    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
+      node.__transition__[id].duration = Math.max(1, value.call(node, node.__data__, i, j) | 0);
+    } : (value = Math.max(1, value | 0), function(node) {
+      node.__transition__[id].duration = value;
+    }));
+  };
+  d3_transitionPrototype.each = function(type, listener) {
+    var id = this.id;
+    if (arguments.length < 2) {
+      var inherit = d3_transitionInherit, inheritId = d3_transitionInheritId;
+      d3_transitionInheritId = id;
+      d3_selection_each(this, function(node, i, j) {
+        d3_transitionInherit = node.__transition__[id];
+        type.call(node, node.__data__, i, j);
+      });
+      d3_transitionInherit = inherit;
+      d3_transitionInheritId = inheritId;
+    } else {
+      d3_selection_each(this, function(node) {
+        node.__transition__[id].event.on(type, listener);
       });
     }
-    points.sort(function(a, b) {
-      return a.angle - b.angle;
-    });
-    a = points[0].angle;
-    v = points[0].index;
-    u = 0;
-    for (i = 1; i < plen; ++i) {
-      j = points[i].index;
-      if (a == points[i].angle) {
-        x1 = vertices[v][0] - vertices[h][0];
-        y1 = vertices[v][1] - vertices[h][1];
-        x2 = vertices[j][0] - vertices[h][0];
-        y2 = vertices[j][1] - vertices[h][1];
-        if (x1 * x1 + y1 * y1 >= x2 * x2 + y2 * y2) {
-          points[i].index = -1;
-        } else {
-          points[u].index = -1;
-          a = points[i].angle;
-          u = i;
-          v = j;
-        }
-      } else {
-        a = points[i].angle;
-        u = i;
-        v = j;
-      }
-    }
-    stack.push(h);
-    for (i = 0, j = 0; i < 2; ++j) {
-      if (points[j].index !== -1) {
-        stack.push(points[j].index);
-        i++;
-      }
-    }
-    sp = stack.length;
-    for (; j < plen; ++j) {
-      if (points[j].index === -1) continue;
-      while (!d3_geom_hullCCW(stack[sp - 2], stack[sp - 1], points[j].index, vertices)) {
-        --sp;
-      }
-      stack[sp++] = points[j].index;
-    }
-    var poly = [];
-    for (i = 0; i < sp; ++i) {
-      poly.push(vertices[stack[i]]);
-    }
-    return poly;
+    return this;
   };
-  d3.geom.polygon = function(coordinates) {
-    coordinates.area = function() {
-      var i = 0, n = coordinates.length, a = coordinates[n - 1][0] * coordinates[0][1], b = coordinates[n - 1][1] * coordinates[0][0];
-      while (++i < n) {
-        a += coordinates[i - 1][0] * coordinates[i][1];
-        b += coordinates[i - 1][1] * coordinates[i][0];
+  d3_transitionPrototype.transition = function() {
+    var id0 = this.id, id1 = ++d3_transitionId, subgroups = [], subgroup, group, node, transition;
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        if (node = group[i]) {
+          transition = Object.create(node.__transition__[id0]);
+          transition.delay += transition.duration;
+          d3_transitionNode(node, i, id1, transition);
+        }
+        subgroup.push(node);
       }
-      return (b - a) * .5;
-    };
-    coordinates.centroid = function(k) {
-      var i = -1, n = coordinates.length, x = 0, y = 0, a, b = coordinates[n - 1], c;
-      if (!arguments.length) k = -1 / (6 * coordinates.area());
-      while (++i < n) {
-        a = b;
-        b = coordinates[i];
-        c = a[0] * b[1] - b[0] * a[1];
-        x += (a[0] + b[0]) * c;
-        y += (a[1] + b[1]) * c;
-      }
-      return [ x * k, y * k ];
-    };
-    coordinates.clip = function(subject) {
-      var input, i = -1, n = coordinates.length, j, m, a = coordinates[n - 1], b, c, d;
-      while (++i < n) {
-        input = subject.slice();
-        subject.length = 0;
-        b = coordinates[i];
-        c = input[(m = input.length) - 1];
-        j = -1;
-        while (++j < m) {
-          d = input[j];
-          if (d3_geom_polygonInside(d, a, b)) {
-            if (!d3_geom_polygonInside(c, a, b)) {
-              subject.push(d3_geom_polygonIntersect(c, d, a, b));
+    }
+    return d3_transition(subgroups, id1);
+  };
+  function d3_transitionNode(node, i, id, inherit) {
+    var lock = node.__transition__ || (node.__transition__ = {
+      active: 0,
+      count: 0
+    }), transition = lock[id];
+    if (!transition) {
+      var time = inherit.time;
+      transition = lock[id] = {
+        tween: new d3_Map(),
+        event: d3.dispatch("start", "end"),
+        time: time,
+        ease: inherit.ease,
+        delay: inherit.delay,
+        duration: inherit.duration
+      };
+      ++lock.count;
+      d3.timer(function(elapsed) {
+        var d = node.__data__, ease = transition.ease, event = transition.event, delay = transition.delay, duration = transition.duration, tweened = [];
+        return delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time), 1;
+        function start(elapsed) {
+          if (lock.active > id) return stop();
+          lock.active = id;
+          event.start.call(node, d, i);
+          transition.tween.forEach(function(key, value) {
+            if (value = value.call(node, d, i)) {
+              tweened.push(value);
             }
-            subject.push(d);
-          } else if (d3_geom_polygonInside(c, a, b)) {
-            subject.push(d3_geom_polygonIntersect(c, d, a, b));
-          }
-          c = d;
+          });
+          if (!tick(elapsed)) d3.timer(tick, 0, time);
+          return 1;
         }
-        a = b;
-      }
-      return subject;
-    };
-    return coordinates;
-  };
-  d3.geom.voronoi = function(vertices) {
-    var polygons = vertices.map(function() {
-      return [];
-    });
-    d3_voronoi_tessellate(vertices, function(e) {
-      var s1, s2, x1, x2, y1, y2;
-      if (e.a === 1 && e.b >= 0) {
-        s1 = e.ep.r;
-        s2 = e.ep.l;
-      } else {
-        s1 = e.ep.l;
-        s2 = e.ep.r;
-      }
-      if (e.a === 1) {
-        y1 = s1 ? s1.y : -1e6;
-        x1 = e.c - e.b * y1;
-        y2 = s2 ? s2.y : 1e6;
-        x2 = e.c - e.b * y2;
-      } else {
-        x1 = s1 ? s1.x : -1e6;
-        y1 = e.c - e.a * x1;
-        x2 = s2 ? s2.x : 1e6;
-        y2 = e.c - e.a * x2;
-      }
-      var v1 = [ x1, y1 ], v2 = [ x2, y2 ];
-      polygons[e.region.l.index].push(v1, v2);
-      polygons[e.region.r.index].push(v1, v2);
-    });
-    return polygons.map(function(polygon, i) {
-      var cx = vertices[i][0], cy = vertices[i][1];
-      polygon.forEach(function(v) {
-        v.angle = Math.atan2(v[0] - cx, v[1] - cy);
-      });
-      return polygon.sort(function(a, b) {
-        return a.angle - b.angle;
-      }).filter(function(d, i) {
-        return !i || d.angle - polygon[i - 1].angle > 1e-10;
-      });
-    });
-  };
-  var d3_voronoi_opposite = {
-    l: "r",
-    r: "l"
-  };
-  d3.geom.delaunay = function(vertices) {
-    var edges = vertices.map(function() {
-      return [];
-    }), triangles = [];
-    d3_voronoi_tessellate(vertices, function(e) {
-      edges[e.region.l.index].push(vertices[e.region.r.index]);
-    });
-    edges.forEach(function(edge, i) {
-      var v = vertices[i], cx = v[0], cy = v[1];
-      edge.forEach(function(v) {
-        v.angle = Math.atan2(v[0] - cx, v[1] - cy);
-      });
-      edge.sort(function(a, b) {
-        return a.angle - b.angle;
-      });
-      for (var j = 0, m = edge.length - 1; j < m; j++) {
-        triangles.push([ v, edge[j], edge[j + 1] ]);
-      }
-    });
-    return triangles;
-  };
-  d3.geom.quadtree = function(points, x1, y1, x2, y2) {
-    function insert(n, p, x1, y1, x2, y2) {
-      if (isNaN(p.x) || isNaN(p.y)) return;
-      if (n.leaf) {
-        var v = n.point;
-        if (v) {
-          if (Math.abs(v.x - p.x) + Math.abs(v.y - p.y) < .01) {
-            insertChild(n, p, x1, y1, x2, y2);
-          } else {
-            n.point = null;
-            insertChild(n, v, x1, y1, x2, y2);
-            insertChild(n, p, x1, y1, x2, y2);
+        function tick(elapsed) {
+          if (lock.active !== id) return stop();
+          var t = (elapsed - delay) / duration, e = ease(t), n = tweened.length;
+          while (n > 0) {
+            tweened[--n].call(node, e);
           }
+          if (t >= 1) {
+            stop();
+            event.end.call(node, d, i);
+            return 1;
+          }
+        }
+        function stop() {
+          if (--lock.count) delete lock[id]; else delete node.__transition__;
+          return 1;
+        }
+      }, 0, time);
+      return transition;
+    }
+  }
+  d3.svg.axis = function() {
+    var scale = d3.scale.linear(), orient = d3_svg_axisDefaultOrient, tickMajorSize = 6, tickMinorSize = 6, tickEndSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_, tickSubdivide = 0;
+    function axis(g) {
+      g.each(function() {
+        var g = d3.select(this);
+        var ticks = tickValues == null ? scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain() : tickValues, tickFormat = tickFormat_ == null ? scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String : tickFormat_;
+        var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide), subtick = g.selectAll(".tick.minor").data(subticks, String), subtickEnter = subtick.enter().insert("line", ".tick").attr("class", "tick minor").style("opacity", 1e-6), subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(), subtickUpdate = d3.transition(subtick).style("opacity", 1);
+        var tick = g.selectAll(".tick.major").data(ticks, String), tickEnter = tick.enter().insert("g", "path").attr("class", "tick major").style("opacity", 1e-6), tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(), tickUpdate = d3.transition(tick).style("opacity", 1), tickTransform;
+        var range = d3_scaleRange(scale), path = g.selectAll(".domain").data([ 0 ]), pathUpdate = (path.enter().append("path").attr("class", "domain"),
+        d3.transition(path));
+        var scale1 = scale.copy(), scale0 = this.__chart__ || scale1;
+        this.__chart__ = scale1;
+        tickEnter.append("line");
+        tickEnter.append("text");
+        var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text");
+        switch (orient) {
+         case "bottom":
+          {
+            tickTransform = d3_svg_axisX;
+            subtickEnter.attr("y2", tickMinorSize);
+            subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize);
+            lineEnter.attr("y2", tickMajorSize);
+            textEnter.attr("y", Math.max(tickMajorSize, 0) + tickPadding);
+            lineUpdate.attr("x2", 0).attr("y2", tickMajorSize);
+            textUpdate.attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding);
+            text.attr("dy", ".71em").style("text-anchor", "middle");
+            pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
+            break;
+          }
+
+         case "top":
+          {
+            tickTransform = d3_svg_axisX;
+            subtickEnter.attr("y2", -tickMinorSize);
+            subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize);
+            lineEnter.attr("y2", -tickMajorSize);
+            textEnter.attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
+            lineUpdate.attr("x2", 0).attr("y2", -tickMajorSize);
+            textUpdate.attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
+            text.attr("dy", "0em").style("text-anchor", "middle");
+            pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);
+            break;
+          }
+
+         case "left":
+          {
+            tickTransform = d3_svg_axisY;
+            subtickEnter.attr("x2", -tickMinorSize);
+            subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0);
+            lineEnter.attr("x2", -tickMajorSize);
+            textEnter.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));
+            lineUpdate.attr("x2", -tickMajorSize).attr("y2", 0);
+            textUpdate.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0);
+            text.attr("dy", ".32em").style("text-anchor", "end");
+            pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
+            break;
+          }
+
+         case "right":
+          {
+            tickTransform = d3_svg_axisY;
+            subtickEnter.attr("x2", tickMinorSize);
+            subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0);
+            lineEnter.attr("x2", tickMajorSize);
+            textEnter.attr("x", Math.max(tickMajorSize, 0) + tickPadding);
+            lineUpdate.attr("x2", tickMajorSize).attr("y2", 0);
+            textUpdate.attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0);
+            text.attr("dy", ".32em").style("text-anchor", "start");
+            pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);
+            break;
+          }
+        }
+        if (scale.ticks) {
+          tickEnter.call(tickTransform, scale0);
+          tickUpdate.call(tickTransform, scale1);
+          tickExit.call(tickTransform, scale1);
+          subtickEnter.call(tickTransform, scale0);
+          subtickUpdate.call(tickTransform, scale1);
+          subtickExit.call(tickTransform, scale1);
         } else {
-          n.point = p;
+          var dx = scale1.rangeBand() / 2, x = function(d) {
+            return scale1(d) + dx;
+          };
+          tickEnter.call(tickTransform, x);
+          tickUpdate.call(tickTransform, x);
         }
-      } else {
-        insertChild(n, p, x1, y1, x2, y2);
-      }
+      });
     }
-    function insertChild(n, p, x1, y1, x2, y2) {
-      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, right = p.x >= sx, bottom = p.y >= sy, i = (bottom << 1) + right;
-      n.leaf = false;
-      n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
-      if (right) x1 = sx; else x2 = sx;
-      if (bottom) y1 = sy; else y2 = sy;
-      insert(n, p, x1, y1, x2, y2);
-    }
-    var p, i = -1, n = points.length;
-    if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint);
-    if (arguments.length < 5) {
-      if (arguments.length === 3) {
-        y2 = x2 = y1;
-        y1 = x1;
-      } else {
-        x1 = y1 = Infinity;
-        x2 = y2 = -Infinity;
-        while (++i < n) {
-          p = points[i];
-          if (p.x < x1) x1 = p.x;
-          if (p.y < y1) y1 = p.y;
-          if (p.x > x2) x2 = p.x;
-          if (p.y > y2) y2 = p.y;
-        }
-        var dx = x2 - x1, dy = y2 - y1;
-        if (dx > dy) y2 = y1 + dx; else x2 = x1 + dy;
-      }
-    }
-    var root = d3_geom_quadtreeNode();
-    root.add = function(p) {
-      insert(root, p, x1, y1, x2, y2);
+    axis.scale = function(x) {
+      if (!arguments.length) return scale;
+      scale = x;
+      return axis;
     };
-    root.visit = function(f) {
-      d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2);
+    axis.orient = function(x) {
+      if (!arguments.length) return orient;
+      orient = x in d3_svg_axisOrients ? x + "" : d3_svg_axisDefaultOrient;
+      return axis;
     };
-    points.forEach(root.add);
-    return root;
+    axis.ticks = function() {
+      if (!arguments.length) return tickArguments_;
+      tickArguments_ = arguments;
+      return axis;
+    };
+    axis.tickValues = function(x) {
+      if (!arguments.length) return tickValues;
+      tickValues = x;
+      return axis;
+    };
+    axis.tickFormat = function(x) {
+      if (!arguments.length) return tickFormat_;
+      tickFormat_ = x;
+      return axis;
+    };
+    axis.tickSize = function(x, y) {
+      if (!arguments.length) return tickMajorSize;
+      var n = arguments.length - 1;
+      tickMajorSize = +x;
+      tickMinorSize = n > 1 ? +y : tickMajorSize;
+      tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;
+      return axis;
+    };
+    axis.tickPadding = function(x) {
+      if (!arguments.length) return tickPadding;
+      tickPadding = +x;
+      return axis;
+    };
+    axis.tickSubdivide = function(x) {
+      if (!arguments.length) return tickSubdivide;
+      tickSubdivide = +x;
+      return axis;
+    };
+    return axis;
   };
+  var d3_svg_axisDefaultOrient = "bottom", d3_svg_axisOrients = {
+    top: 1,
+    right: 1,
+    bottom: 1,
+    left: 1
+  };
+  function d3_svg_axisX(selection, x) {
+    selection.attr("transform", function(d) {
+      return "translate(" + x(d) + ",0)";
+    });
+  }
+  function d3_svg_axisY(selection, y) {
+    selection.attr("transform", function(d) {
+      return "translate(0," + y(d) + ")";
+    });
+  }
+  function d3_svg_axisSubdivide(scale, ticks, m) {
+    subticks = [];
+    if (m && ticks.length > 1) {
+      var extent = d3_scaleExtent(scale.domain()), subticks, i = -1, n = ticks.length, d = (ticks[1] - ticks[0]) / ++m, j, v;
+      while (++i < n) {
+        for (j = m; --j > 0; ) {
+          if ((v = +ticks[i] - j * d) >= extent[0]) {
+            subticks.push(v);
+          }
+        }
+      }
+      for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1]; ) {
+        subticks.push(v);
+      }
+    }
+    return subticks;
+  }
+  d3.svg.brush = function() {
+    var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, resizes = d3_svg_brushResizes[0], extent = [ [ 0, 0 ], [ 0, 0 ] ], extentDomain;
+    function brush(g) {
+      g.each(function() {
+        var g = d3.select(this), bg = g.selectAll(".background").data([ 0 ]), fg = g.selectAll(".extent").data([ 0 ]), tz = g.selectAll(".resize").data(resizes, String), e;
+        g.style("pointer-events", "all").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);
+        bg.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");
+        fg.enter().append("rect").attr("class", "extent").style("cursor", "move");
+        tz.enter().append("g").attr("class", function(d) {
+          return "resize " + d;
+        }).style("cursor", function(d) {
+          return d3_svg_brushCursor[d];
+        }).append("rect").attr("x", function(d) {
+          return /[ew]$/.test(d) ? -3 : null;
+        }).attr("y", function(d) {
+          return /^[ns]/.test(d) ? -3 : null;
+        }).attr("width", 6).attr("height", 6).style("visibility", "hidden");
+        tz.style("display", brush.empty() ? "none" : null);
+        tz.exit().remove();
+        if (x) {
+          e = d3_scaleRange(x);
+          bg.attr("x", e[0]).attr("width", e[1] - e[0]);
+          redrawX(g);
+        }
+        if (y) {
+          e = d3_scaleRange(y);
+          bg.attr("y", e[0]).attr("height", e[1] - e[0]);
+          redrawY(g);
+        }
+        redraw(g);
+      });
+    }
+    function redraw(g) {
+      g.selectAll(".resize").attr("transform", function(d) {
+        return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")";
+      });
+    }
+    function redrawX(g) {
+      g.select(".extent").attr("x", extent[0][0]);
+      g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]);
+    }
+    function redrawY(g) {
+      g.select(".extent").attr("y", extent[0][1]);
+      g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]);
+    }
+    function brushstart() {
+      var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), center, origin = mouse(), offset;
+      var w = d3.select(d3_window).on("mousemove.brush", brushmove).on("mouseup.brush", brushend).on("touchmove.brush", brushmove).on("touchend.brush", brushend).on("keydown.brush", keydown).on("keyup.brush", keyup);
+      if (dragging) {
+        origin[0] = extent[0][0] - origin[0];
+        origin[1] = extent[0][1] - origin[1];
+      } else if (resizing) {
+        var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);
+        offset = [ extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1] ];
+        origin[0] = extent[ex][0];
+        origin[1] = extent[ey][1];
+      } else if (d3.event.altKey) center = origin.slice();
+      g.style("pointer-events", "none").selectAll(".resize").style("display", null);
+      d3.select("body").style("cursor", eventTarget.style("cursor"));
+      event_({
+        type: "brushstart"
+      });
+      brushmove();
+      d3_eventCancel();
+      function mouse() {
+        var touches = d3.event.changedTouches;
+        return touches ? d3.touches(target, touches)[0] : d3.mouse(target);
+      }
+      function keydown() {
+        if (d3.event.keyCode == 32) {
+          if (!dragging) {
+            center = null;
+            origin[0] -= extent[1][0];
+            origin[1] -= extent[1][1];
+            dragging = 2;
+          }
+          d3_eventCancel();
+        }
+      }
+      function keyup() {
+        if (d3.event.keyCode == 32 && dragging == 2) {
+          origin[0] += extent[1][0];
+          origin[1] += extent[1][1];
+          dragging = 0;
+          d3_eventCancel();
+        }
+      }
+      function brushmove() {
+        var point = mouse(), moved = false;
+        if (offset) {
+          point[0] += offset[0];
+          point[1] += offset[1];
+        }
+        if (!dragging) {
+          if (d3.event.altKey) {
+            if (!center) center = [ (extent[0][0] + extent[1][0]) / 2, (extent[0][1] + extent[1][1]) / 2 ];
+            origin[0] = extent[+(point[0] < center[0])][0];
+            origin[1] = extent[+(point[1] < center[1])][1];
+          } else center = null;
+        }
+        if (resizingX && move1(point, x, 0)) {
+          redrawX(g);
+          moved = true;
+        }
+        if (resizingY && move1(point, y, 1)) {
+          redrawY(g);
+          moved = true;
+        }
+        if (moved) {
+          redraw(g);
+          event_({
+            type: "brush",
+            mode: dragging ? "move" : "resize"
+          });
+        }
+      }
+      function move1(point, scale, i) {
+        var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], size = extent[1][i] - extent[0][i], min, max;
+        if (dragging) {
+          r0 -= position;
+          r1 -= size + position;
+        }
+        min = Math.max(r0, Math.min(r1, point[i]));
+        if (dragging) {
+          max = (min += position) + size;
+        } else {
+          if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
+          if (position < min) {
+            max = min;
+            min = position;
+          } else {
+            max = position;
+          }
+        }
+        if (extent[0][i] !== min || extent[1][i] !== max) {
+          extentDomain = null;
+          extent[0][i] = min;
+          extent[1][i] = max;
+          return true;
+        }
+      }
+      function brushend() {
+        brushmove();
+        g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
+        d3.select("body").style("cursor", null);
+        w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null);
+        event_({
+          type: "brushend"
+        });
+        d3_eventCancel();
+      }
+    }
+    brush.x = function(z) {
+      if (!arguments.length) return x;
+      x = z;
+      resizes = d3_svg_brushResizes[!x << 1 | !y];
+      return brush;
+    };
+    brush.y = function(z) {
+      if (!arguments.length) return y;
+      y = z;
+      resizes = d3_svg_brushResizes[!x << 1 | !y];
+      return brush;
+    };
+    brush.extent = function(z) {
+      var x0, x1, y0, y1, t;
+      if (!arguments.length) {
+        z = extentDomain || extent;
+        if (x) {
+          x0 = z[0][0], x1 = z[1][0];
+          if (!extentDomain) {
+            x0 = extent[0][0], x1 = extent[1][0];
+            if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
+            if (x1 < x0) t = x0, x0 = x1, x1 = t;
+          }
+        }
+        if (y) {
+          y0 = z[0][1], y1 = z[1][1];
+          if (!extentDomain) {
+            y0 = extent[0][1], y1 = extent[1][1];
+            if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
+            if (y1 < y0) t = y0, y0 = y1, y1 = t;
+          }
+        }
+        return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];
+      }
+      extentDomain = [ [ 0, 0 ], [ 0, 0 ] ];
+      if (x) {
+        x0 = z[0], x1 = z[1];
+        if (y) x0 = x0[0], x1 = x1[0];
+        extentDomain[0][0] = x0, extentDomain[1][0] = x1;
+        if (x.invert) x0 = x(x0), x1 = x(x1);
+        if (x1 < x0) t = x0, x0 = x1, x1 = t;
+        extent[0][0] = x0 | 0, extent[1][0] = x1 | 0;
+      }
+      if (y) {
+        y0 = z[0], y1 = z[1];
+        if (x) y0 = y0[1], y1 = y1[1];
+        extentDomain[0][1] = y0, extentDomain[1][1] = y1;
+        if (y.invert) y0 = y(y0), y1 = y(y1);
+        if (y1 < y0) t = y0, y0 = y1, y1 = t;
+        extent[0][1] = y0 | 0, extent[1][1] = y1 | 0;
+      }
+      return brush;
+    };
+    brush.clear = function() {
+      extentDomain = null;
+      extent[0][0] = extent[0][1] = extent[1][0] = extent[1][1] = 0;
+      return brush;
+    };
+    brush.empty = function() {
+      return x && extent[0][0] === extent[1][0] || y && extent[0][1] === extent[1][1];
+    };
+    return d3.rebind(brush, event, "on");
+  };
+  var d3_svg_brushCursor = {
+    n: "ns-resize",
+    e: "ew-resize",
+    s: "ns-resize",
+    w: "ew-resize",
+    nw: "nwse-resize",
+    ne: "nesw-resize",
+    se: "nwse-resize",
+    sw: "nesw-resize"
+  };
+  var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ];
   d3.time = {};
   var d3_time = Date, d3_time_daySymbols = [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ];
+  function d3_time_utc() {
+    this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);
+  }
   d3_time_utc.prototype = {
     getDate: function() {
       return this._.getUTCDate();
@@ -6721,195 +7863,79 @@
     }
   };
   var d3_time_prototype = Date.prototype;
-  var d3_time_formatDateTime = "%a %b %e %H:%M:%S %Y", d3_time_formatDate = "%m/%d/%y", d3_time_formatTime = "%H:%M:%S";
-  var d3_time_days = d3_time_daySymbols, d3_time_dayAbbreviations = d3_time_days.map(d3_time_formatAbbreviate), d3_time_months = [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ], d3_time_monthAbbreviations = d3_time_months.map(d3_time_formatAbbreviate);
-  d3.time.format = function(template) {
-    function format(date) {
-      var string = [], i = -1, j = 0, c, f;
-      while (++i < n) {
-        if (template.charCodeAt(i) == 37) {
-          string.push(template.substring(j, i), (f = d3_time_formats[c = template.charAt(++i)]) ? f(date) : c);
-          j = i + 1;
-        }
-      }
-      string.push(template.substring(j, i));
-      return string.join("");
+  var d3_time_formatDateTime = "%a %b %e %X %Y", d3_time_formatDate = "%m/%d/%Y", d3_time_formatTime = "%H:%M:%S";
+  var d3_time_days = [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ], d3_time_dayAbbreviations = [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ], d3_time_months = [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ], d3_time_monthAbbreviations = [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ];
+  function d3_time_interval(local, step, number) {
+    function round(date) {
+      var d0 = local(date), d1 = offset(d0, 1);
+      return date - d0 < d1 - date ? d0 : d1;
     }
-    var n = template.length;
-    format.parse = function(string) {
-      var d = {
-        y: 1900,
-        m: 0,
-        d: 1,
-        H: 0,
-        M: 0,
-        S: 0,
-        L: 0
-      }, i = d3_time_parse(d, template, string, 0);
-      if (i != string.length) return null;
-      if ("p" in d) d.H = d.H % 12 + d.p * 12;
-      var date = new d3_time;
-      date.setFullYear(d.y, d.m, d.d);
-      date.setHours(d.H, d.M, d.S, d.L);
+    function ceil(date) {
+      step(date = local(new d3_time(date - 1)), 1);
       return date;
-    };
-    format.toString = function() {
-      return template;
-    };
-    return format;
-  };
-  var d3_time_zfill2 = d3.format("02d"), d3_time_zfill3 = d3.format("03d"), d3_time_zfill4 = d3.format("04d"), d3_time_sfill2 = d3.format("2d");
-  var d3_time_dayRe = d3_time_formatRe(d3_time_days), d3_time_dayAbbrevRe = d3_time_formatRe(d3_time_dayAbbreviations), d3_time_monthRe = d3_time_formatRe(d3_time_months), d3_time_monthLookup = d3_time_formatLookup(d3_time_months), d3_time_monthAbbrevRe = d3_time_formatRe(d3_time_monthAbbreviations), d3_time_monthAbbrevLookup = d3_time_formatLookup(d3_time_monthAbbreviations);
-  var d3_time_formats = {
-    a: function(d) {
-      return d3_time_dayAbbreviations[d.getDay()];
-    },
-    A: function(d) {
-      return d3_time_days[d.getDay()];
-    },
-    b: function(d) {
-      return d3_time_monthAbbreviations[d.getMonth()];
-    },
-    B: function(d) {
-      return d3_time_months[d.getMonth()];
-    },
-    c: d3.time.format(d3_time_formatDateTime),
-    d: function(d) {
-      return d3_time_zfill2(d.getDate());
-    },
-    e: function(d) {
-      return d3_time_sfill2(d.getDate());
-    },
-    H: function(d) {
-      return d3_time_zfill2(d.getHours());
-    },
-    I: function(d) {
-      return d3_time_zfill2(d.getHours() % 12 || 12);
-    },
-    j: function(d) {
-      return d3_time_zfill3(1 + d3.time.dayOfYear(d));
-    },
-    L: function(d) {
-      return d3_time_zfill3(d.getMilliseconds());
-    },
-    m: function(d) {
-      return d3_time_zfill2(d.getMonth() + 1);
-    },
-    M: function(d) {
-      return d3_time_zfill2(d.getMinutes());
-    },
-    p: function(d) {
-      return d.getHours() >= 12 ? "PM" : "AM";
-    },
-    S: function(d) {
-      return d3_time_zfill2(d.getSeconds());
-    },
-    U: function(d) {
-      return d3_time_zfill2(d3.time.sundayOfYear(d));
-    },
-    w: function(d) {
-      return d.getDay();
-    },
-    W: function(d) {
-      return d3_time_zfill2(d3.time.mondayOfYear(d));
-    },
-    x: d3.time.format(d3_time_formatDate),
-    X: d3.time.format(d3_time_formatTime),
-    y: function(d) {
-      return d3_time_zfill2(d.getFullYear() % 100);
-    },
-    Y: function(d) {
-      return d3_time_zfill4(d.getFullYear() % 1e4);
-    },
-    Z: d3_time_zone,
-    "%": function(d) {
-      return "%";
     }
-  };
-  var d3_time_parsers = {
-    a: d3_time_parseWeekdayAbbrev,
-    A: d3_time_parseWeekday,
-    b: d3_time_parseMonthAbbrev,
-    B: d3_time_parseMonth,
-    c: d3_time_parseLocaleFull,
-    d: d3_time_parseDay,
-    e: d3_time_parseDay,
-    H: d3_time_parseHour24,
-    I: d3_time_parseHour24,
-    L: d3_time_parseMilliseconds,
-    m: d3_time_parseMonthNumber,
-    M: d3_time_parseMinutes,
-    p: d3_time_parseAmPm,
-    S: d3_time_parseSeconds,
-    x: d3_time_parseLocaleDate,
-    X: d3_time_parseLocaleTime,
-    y: d3_time_parseYear,
-    Y: d3_time_parseFullYear
-  };
-  var d3_time_numberRe = /^\s*\d+/;
-  var d3_time_amPmLookup = d3.map({
-    am: 0,
-    pm: 1
-  });
-  d3.time.format.utc = function(template) {
-    function format(date) {
+    function offset(date, k) {
+      step(date = new d3_time(+date), k);
+      return date;
+    }
+    function range(t0, t1, dt) {
+      var time = ceil(t0), times = [];
+      if (dt > 1) {
+        while (time < t1) {
+          if (!(number(time) % dt)) times.push(new Date(+time));
+          step(time, 1);
+        }
+      } else {
+        while (time < t1) times.push(new Date(+time)), step(time, 1);
+      }
+      return times;
+    }
+    function range_utc(t0, t1, dt) {
       try {
         d3_time = d3_time_utc;
-        var utc = new d3_time;
+        var utc = new d3_time_utc();
+        utc._ = t0;
+        return range(utc, t1, dt);
+      } finally {
+        d3_time = Date;
+      }
+    }
+    local.floor = local;
+    local.round = round;
+    local.ceil = ceil;
+    local.offset = offset;
+    local.range = range;
+    var utc = local.utc = d3_time_interval_utc(local);
+    utc.floor = utc;
+    utc.round = d3_time_interval_utc(round);
+    utc.ceil = d3_time_interval_utc(ceil);
+    utc.offset = d3_time_interval_utc(offset);
+    utc.range = range_utc;
+    return local;
+  }
+  function d3_time_interval_utc(method) {
+    return function(date, k) {
+      try {
+        d3_time = d3_time_utc;
+        var utc = new d3_time_utc();
         utc._ = date;
-        return local(utc);
-      } finally {
-        d3_time = Date;
-      }
-    }
-    var local = d3.time.format(template);
-    format.parse = function(string) {
-      try {
-        d3_time = d3_time_utc;
-        var date = local.parse(string);
-        return date && date._;
+        return method(utc, k)._;
       } finally {
         d3_time = Date;
       }
     };
-    format.toString = local.toString;
-    return format;
-  };
-  var d3_time_formatIso = d3.time.format.utc("%Y-%m-%dT%H:%M:%S.%LZ");
-  d3.time.format.iso = Date.prototype.toISOString ? d3_time_formatIsoNative : d3_time_formatIso;
-  d3_time_formatIsoNative.parse = function(string) {
-    var date = new Date(string);
-    return isNaN(date) ? null : date;
-  };
-  d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
-  d3.time.second = d3_time_interval(function(date) {
-    return new d3_time(Math.floor(date / 1e3) * 1e3);
+  }
+  d3.time.year = d3_time_interval(function(date) {
+    date = d3.time.day(date);
+    date.setMonth(0, 1);
+    return date;
   }, function(date, offset) {
-    date.setTime(date.getTime() + Math.floor(offset) * 1e3);
+    date.setFullYear(date.getFullYear() + offset);
   }, function(date) {
-    return date.getSeconds();
+    return date.getFullYear();
   });
-  d3.time.seconds = d3.time.second.range;
-  d3.time.seconds.utc = d3.time.second.utc.range;
-  d3.time.minute = d3_time_interval(function(date) {
-    return new d3_time(Math.floor(date / 6e4) * 6e4);
-  }, function(date, offset) {
-    date.setTime(date.getTime() + Math.floor(offset) * 6e4);
-  }, function(date) {
-    return date.getMinutes();
-  });
-  d3.time.minutes = d3.time.minute.range;
-  d3.time.minutes.utc = d3.time.minute.utc.range;
-  d3.time.hour = d3_time_interval(function(date) {
-    var timezone = date.getTimezoneOffset() / 60;
-    return new d3_time((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
-  }, function(date, offset) {
-    date.setTime(date.getTime() + Math.floor(offset) * 36e5);
-  }, function(date) {
-    return date.getHours();
-  });
-  d3.time.hours = d3.time.hour.range;
-  d3.time.hours.utc = d3.time.hour.utc.range;
+  d3.time.years = d3.time.year.range;
+  d3.time.years.utc = d3.time.year.utc.range;
   d3.time.day = d3_time_interval(function(date) {
     var day = new d3_time(1970, 0);
     day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());
@@ -6948,6 +7974,310 @@
   d3.time.weeks = d3.time.sunday.range;
   d3.time.weeks.utc = d3.time.sunday.utc.range;
   d3.time.weekOfYear = d3.time.sundayOfYear;
+  d3.time.format = function(template) {
+    var n = template.length;
+    function format(date) {
+      var string = [], i = -1, j = 0, c, p, f;
+      while (++i < n) {
+        if (template.charCodeAt(i) === 37) {
+          string.push(template.substring(j, i));
+          if ((p = d3_time_formatPads[c = template.charAt(++i)]) != null) c = template.charAt(++i);
+          if (f = d3_time_formats[c]) c = f(date, p == null ? c === "e" ? " " : "0" : p);
+          string.push(c);
+          j = i + 1;
+        }
+      }
+      string.push(template.substring(j, i));
+      return string.join("");
+    }
+    format.parse = function(string) {
+      var d = {
+        y: 1900,
+        m: 0,
+        d: 1,
+        H: 0,
+        M: 0,
+        S: 0,
+        L: 0
+      }, i = d3_time_parse(d, template, string, 0);
+      if (i != string.length) return null;
+      if ("p" in d) d.H = d.H % 12 + d.p * 12;
+      var date = new d3_time();
+      date.setFullYear(d.y, d.m, d.d);
+      date.setHours(d.H, d.M, d.S, d.L);
+      return date;
+    };
+    format.toString = function() {
+      return template;
+    };
+    return format;
+  };
+  function d3_time_parse(date, template, string, j) {
+    var c, p, i = 0, n = template.length, m = string.length;
+    while (i < n) {
+      if (j >= m) return -1;
+      c = template.charCodeAt(i++);
+      if (c === 37) {
+        p = d3_time_parsers[template.charAt(i++)];
+        if (!p || (j = p(date, string, j)) < 0) return -1;
+      } else if (c != string.charCodeAt(j++)) {
+        return -1;
+      }
+    }
+    return j;
+  }
+  function d3_time_formatRe(names) {
+    return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i");
+  }
+  function d3_time_formatLookup(names) {
+    var map = new d3_Map(), i = -1, n = names.length;
+    while (++i < n) map.set(names[i].toLowerCase(), i);
+    return map;
+  }
+  function d3_time_formatPad(value, fill, width) {
+    value += "";
+    var length = value.length;
+    return length < width ? new Array(width - length + 1).join(fill) + value : value;
+  }
+  var d3_time_dayRe = d3_time_formatRe(d3_time_days), d3_time_dayAbbrevRe = d3_time_formatRe(d3_time_dayAbbreviations), d3_time_monthRe = d3_time_formatRe(d3_time_months), d3_time_monthLookup = d3_time_formatLookup(d3_time_months), d3_time_monthAbbrevRe = d3_time_formatRe(d3_time_monthAbbreviations), d3_time_monthAbbrevLookup = d3_time_formatLookup(d3_time_monthAbbreviations);
+  var d3_time_formatPads = {
+    "-": "",
+    _: " ",
+    "0": "0"
+  };
+  var d3_time_formats = {
+    a: function(d) {
+      return d3_time_dayAbbreviations[d.getDay()];
+    },
+    A: function(d) {
+      return d3_time_days[d.getDay()];
+    },
+    b: function(d) {
+      return d3_time_monthAbbreviations[d.getMonth()];
+    },
+    B: function(d) {
+      return d3_time_months[d.getMonth()];
+    },
+    c: d3.time.format(d3_time_formatDateTime),
+    d: function(d, p) {
+      return d3_time_formatPad(d.getDate(), p, 2);
+    },
+    e: function(d, p) {
+      return d3_time_formatPad(d.getDate(), p, 2);
+    },
+    H: function(d, p) {
+      return d3_time_formatPad(d.getHours(), p, 2);
+    },
+    I: function(d, p) {
+      return d3_time_formatPad(d.getHours() % 12 || 12, p, 2);
+    },
+    j: function(d, p) {
+      return d3_time_formatPad(1 + d3.time.dayOfYear(d), p, 3);
+    },
+    L: function(d, p) {
+      return d3_time_formatPad(d.getMilliseconds(), p, 3);
+    },
+    m: function(d, p) {
+      return d3_time_formatPad(d.getMonth() + 1, p, 2);
+    },
+    M: function(d, p) {
+      return d3_time_formatPad(d.getMinutes(), p, 2);
+    },
+    p: function(d) {
+      return d.getHours() >= 12 ? "PM" : "AM";
+    },
+    S: function(d, p) {
+      return d3_time_formatPad(d.getSeconds(), p, 2);
+    },
+    U: function(d, p) {
+      return d3_time_formatPad(d3.time.sundayOfYear(d), p, 2);
+    },
+    w: function(d) {
+      return d.getDay();
+    },
+    W: function(d, p) {
+      return d3_time_formatPad(d3.time.mondayOfYear(d), p, 2);
+    },
+    x: d3.time.format(d3_time_formatDate),
+    X: d3.time.format(d3_time_formatTime),
+    y: function(d, p) {
+      return d3_time_formatPad(d.getFullYear() % 100, p, 2);
+    },
+    Y: function(d, p) {
+      return d3_time_formatPad(d.getFullYear() % 1e4, p, 4);
+    },
+    Z: d3_time_zone,
+    "%": function() {
+      return "%";
+    }
+  };
+  var d3_time_parsers = {
+    a: d3_time_parseWeekdayAbbrev,
+    A: d3_time_parseWeekday,
+    b: d3_time_parseMonthAbbrev,
+    B: d3_time_parseMonth,
+    c: d3_time_parseLocaleFull,
+    d: d3_time_parseDay,
+    e: d3_time_parseDay,
+    H: d3_time_parseHour24,
+    I: d3_time_parseHour24,
+    L: d3_time_parseMilliseconds,
+    m: d3_time_parseMonthNumber,
+    M: d3_time_parseMinutes,
+    p: d3_time_parseAmPm,
+    S: d3_time_parseSeconds,
+    x: d3_time_parseLocaleDate,
+    X: d3_time_parseLocaleTime,
+    y: d3_time_parseYear,
+    Y: d3_time_parseFullYear
+  };
+  function d3_time_parseWeekdayAbbrev(date, string, i) {
+    d3_time_dayAbbrevRe.lastIndex = 0;
+    var n = d3_time_dayAbbrevRe.exec(string.substring(i));
+    return n ? i += n[0].length : -1;
+  }
+  function d3_time_parseWeekday(date, string, i) {
+    d3_time_dayRe.lastIndex = 0;
+    var n = d3_time_dayRe.exec(string.substring(i));
+    return n ? i += n[0].length : -1;
+  }
+  function d3_time_parseMonthAbbrev(date, string, i) {
+    d3_time_monthAbbrevRe.lastIndex = 0;
+    var n = d3_time_monthAbbrevRe.exec(string.substring(i));
+    return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i += n[0].length) : -1;
+  }
+  function d3_time_parseMonth(date, string, i) {
+    d3_time_monthRe.lastIndex = 0;
+    var n = d3_time_monthRe.exec(string.substring(i));
+    return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i += n[0].length) : -1;
+  }
+  function d3_time_parseLocaleFull(date, string, i) {
+    return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
+  }
+  function d3_time_parseLocaleDate(date, string, i) {
+    return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
+  }
+  function d3_time_parseLocaleTime(date, string, i) {
+    return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
+  }
+  function d3_time_parseFullYear(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.substring(i, i + 4));
+    return n ? (date.y = +n[0], i += n[0].length) : -1;
+  }
+  function d3_time_parseYear(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+    return n ? (date.y = d3_time_expandYear(+n[0]), i += n[0].length) : -1;
+  }
+  function d3_time_expandYear(d) {
+    return d + (d > 68 ? 1900 : 2e3);
+  }
+  function d3_time_parseMonthNumber(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+    return n ? (date.m = n[0] - 1, i += n[0].length) : -1;
+  }
+  function d3_time_parseDay(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+    return n ? (date.d = +n[0], i += n[0].length) : -1;
+  }
+  function d3_time_parseHour24(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+    return n ? (date.H = +n[0], i += n[0].length) : -1;
+  }
+  function d3_time_parseMinutes(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+    return n ? (date.M = +n[0], i += n[0].length) : -1;
+  }
+  function d3_time_parseSeconds(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));
+    return n ? (date.S = +n[0], i += n[0].length) : -1;
+  }
+  function d3_time_parseMilliseconds(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.substring(i, i + 3));
+    return n ? (date.L = +n[0], i += n[0].length) : -1;
+  }
+  var d3_time_numberRe = /^\s*\d+/;
+  function d3_time_parseAmPm(date, string, i) {
+    var n = d3_time_amPmLookup.get(string.substring(i, i += 2).toLowerCase());
+    return n == null ? -1 : (date.p = n, i);
+  }
+  var d3_time_amPmLookup = d3.map({
+    am: 0,
+    pm: 1
+  });
+  function d3_time_zone(d) {
+    var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = ~~(Math.abs(z) / 60), zm = Math.abs(z) % 60;
+    return zs + d3_time_formatPad(zh, "0", 2) + d3_time_formatPad(zm, "0", 2);
+  }
+  d3.time.format.utc = function(template) {
+    var local = d3.time.format(template);
+    function format(date) {
+      try {
+        d3_time = d3_time_utc;
+        var utc = new d3_time();
+        utc._ = date;
+        return local(utc);
+      } finally {
+        d3_time = Date;
+      }
+    }
+    format.parse = function(string) {
+      try {
+        d3_time = d3_time_utc;
+        var date = local.parse(string);
+        return date && date._;
+      } finally {
+        d3_time = Date;
+      }
+    };
+    format.toString = local.toString;
+    return format;
+  };
+  var d3_time_formatIso = d3.time.format.utc("%Y-%m-%dT%H:%M:%S.%LZ");
+  d3.time.format.iso = Date.prototype.toISOString && +new Date("2000-01-01T00:00:00.000Z") ? d3_time_formatIsoNative : d3_time_formatIso;
+  function d3_time_formatIsoNative(date) {
+    return date.toISOString();
+  }
+  d3_time_formatIsoNative.parse = function(string) {
+    var date = new Date(string);
+    return isNaN(date) ? null : date;
+  };
+  d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
+  d3.time.second = d3_time_interval(function(date) {
+    return new d3_time(Math.floor(date / 1e3) * 1e3);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 1e3);
+  }, function(date) {
+    return date.getSeconds();
+  });
+  d3.time.seconds = d3.time.second.range;
+  d3.time.seconds.utc = d3.time.second.utc.range;
+  d3.time.minute = d3_time_interval(function(date) {
+    return new d3_time(Math.floor(date / 6e4) * 6e4);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 6e4);
+  }, function(date) {
+    return date.getMinutes();
+  });
+  d3.time.minutes = d3.time.minute.range;
+  d3.time.minutes.utc = d3.time.minute.utc.range;
+  d3.time.hour = d3_time_interval(function(date) {
+    var timezone = date.getTimezoneOffset() / 60;
+    return new d3_time((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 36e5);
+  }, function(date) {
+    return date.getHours();
+  });
+  d3.time.hours = d3.time.hour.range;
+  d3.time.hours.utc = d3.time.hour.utc.range;
   d3.time.month = d3_time_interval(function(date) {
     date = d3.time.day(date);
     date.setDate(1);
@@ -6959,22 +8289,70 @@
   });
   d3.time.months = d3.time.month.range;
   d3.time.months.utc = d3.time.month.utc.range;
-  d3.time.year = d3_time_interval(function(date) {
-    date = d3.time.day(date);
-    date.setMonth(0, 1);
-    return date;
-  }, function(date, offset) {
-    date.setFullYear(date.getFullYear() + offset);
-  }, function(date) {
-    return date.getFullYear();
-  });
-  d3.time.years = d3.time.year.range;
-  d3.time.years.utc = d3.time.year.utc.range;
+  function d3_time_scale(linear, methods, format) {
+    function scale(x) {
+      return linear(x);
+    }
+    scale.invert = function(x) {
+      return d3_time_scaleDate(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
+      linear.domain(x);
+      return scale;
+    };
+    scale.nice = function(m) {
+      return scale.domain(d3_scale_nice(scale.domain(), function() {
+        return m;
+      }));
+    };
+    scale.ticks = function(m, k) {
+      var extent = d3_time_scaleExtent(scale.domain());
+      if (typeof m !== "function") {
+        var span = extent[1] - extent[0], target = span / m, i = d3.bisect(d3_time_scaleSteps, target);
+        if (i == d3_time_scaleSteps.length) return methods.year(extent, m);
+        if (!i) return linear.ticks(m).map(d3_time_scaleDate);
+        if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i;
+        m = methods[i];
+        k = m[1];
+        m = m[0].range;
+      }
+      return m(extent[0], new Date(+extent[1] + 1), k);
+    };
+    scale.tickFormat = function() {
+      return format;
+    };
+    scale.copy = function() {
+      return d3_time_scale(linear.copy(), methods, format);
+    };
+    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
+  }
+  function d3_time_scaleExtent(domain) {
+    var start = domain[0], stop = domain[domain.length - 1];
+    return start < stop ? [ start, stop ] : [ stop, start ];
+  }
+  function d3_time_scaleDate(t) {
+    return new Date(t);
+  }
+  function d3_time_scaleFormat(formats) {
+    return function(date) {
+      var i = formats.length - 1, f = formats[i];
+      while (!f[1](date)) f = formats[--i];
+      return f[0](date);
+    };
+  }
+  function d3_time_scaleSetYear(y) {
+    var d = new Date(y, 0, 1);
+    d.setFullYear(y);
+    return d;
+  }
+  function d3_time_scaleGetYear(d) {
+    var y = d.getFullYear(), d0 = d3_time_scaleSetYear(y), d1 = d3_time_scaleSetYear(y + 1);
+    return y + (d - d0) / (d1 - d0);
+  }
   var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ];
   var d3_time_scaleLocalMethods = [ [ d3.time.second, 1 ], [ d3.time.second, 5 ], [ d3.time.second, 15 ], [ d3.time.second, 30 ], [ d3.time.minute, 1 ], [ d3.time.minute, 5 ], [ d3.time.minute, 15 ], [ d3.time.minute, 30 ], [ d3.time.hour, 1 ], [ d3.time.hour, 3 ], [ d3.time.hour, 6 ], [ d3.time.hour, 12 ], [ d3.time.day, 1 ], [ d3.time.day, 2 ], [ d3.time.week, 1 ], [ d3.time.month, 1 ], [ d3.time.month, 3 ], [ d3.time.year, 1 ] ];
-  var d3_time_scaleLocalFormats = [ [ d3.time.format("%Y"), function(d) {
-    return true;
-  } ], [ d3.time.format("%B"), function(d) {
+  var d3_time_scaleLocalFormats = [ [ d3.time.format("%Y"), d3_true ], [ d3.time.format("%B"), function(d) {
     return d.getMonth();
   } ], [ d3.time.format("%b %d"), function(d) {
     return d.getDate() != 1;
@@ -6999,9 +8377,7 @@
   var d3_time_scaleUTCMethods = d3_time_scaleLocalMethods.map(function(m) {
     return [ m[0].utc, m[1] ];
   });
-  var d3_time_scaleUTCFormats = [ [ d3.time.format.utc("%Y"), function(d) {
-    return true;
-  } ], [ d3.time.format.utc("%B"), function(d) {
+  var d3_time_scaleUTCFormats = [ [ d3.time.format.utc("%Y"), d3_true ], [ d3.time.format.utc("%B"), function(d) {
     return d.getUTCMonth();
   } ], [ d3.time.format.utc("%b %d"), function(d) {
     return d.getUTCDate() != 1;
@@ -7017,10 +8393,46 @@
     return d.getUTCMilliseconds();
   } ] ];
   var d3_time_scaleUTCFormat = d3_time_scaleFormat(d3_time_scaleUTCFormats);
+  function d3_time_scaleUTCSetYear(y) {
+    var d = new Date(Date.UTC(y, 0, 1));
+    d.setUTCFullYear(y);
+    return d;
+  }
+  function d3_time_scaleUTCGetYear(d) {
+    var y = d.getUTCFullYear(), d0 = d3_time_scaleUTCSetYear(y), d1 = d3_time_scaleUTCSetYear(y + 1);
+    return y + (d - d0) / (d1 - d0);
+  }
   d3_time_scaleUTCMethods.year = function(extent, m) {
     return d3_time_scaleLinear.domain(extent.map(d3_time_scaleUTCGetYear)).ticks(m).map(d3_time_scaleUTCSetYear);
   };
   d3.time.scale.utc = function() {
     return d3_time_scale(d3.scale.linear(), d3_time_scaleUTCMethods, d3_time_scaleUTCFormat);
   };
-})();
\ No newline at end of file
+  d3.text = function() {
+    return d3.xhr.apply(d3, arguments).response(d3_text);
+  };
+  function d3_text(request) {
+    return request.responseText;
+  }
+  d3.json = function(url, callback) {
+    return d3.xhr(url, "application/json", callback).response(d3_json);
+  };
+  function d3_json(request) {
+    return JSON.parse(request.responseText);
+  }
+  d3.html = function(url, callback) {
+    return d3.xhr(url, "text/html", callback).response(d3_html);
+  };
+  function d3_html(request) {
+    var range = d3_document.createRange();
+    range.selectNode(d3_document.body);
+    return range.createContextualFragment(request.responseText);
+  }
+  d3.xml = function() {
+    return d3.xhr.apply(d3, arguments).response(d3_xml);
+  };
+  function d3_xml(request) {
+    return request.responseXML;
+  }
+  return d3;
+}();
diff --git a/packages/d3/package.js b/packages/d3/package.js
index a4868a8ea2..265bd0424f 100644
--- a/packages/d3/package.js
+++ b/packages/d3/package.js
@@ -3,5 +3,5 @@ Package.describe({
 });
 
 Package.on_use(function (api) {
-  api.add_files('d3.v2.js', 'client');
+  api.add_files('d3.v3.js', 'client');
 });