# Default Graph Display

> The visualization display will show the graph in a new window or in a new tab of a previously created graph window.

## Manipulating the Graph

- Dragging in the graph or on any unselected vertices will pan the graph (translate the display in the x and y axis)
- Dragging a selected vertex will reposition all selected vertices
- Using the `Mouse Wheel` will zoom the graph in and out
- `Control+Mouse Wheel` will zoom the graph in and out on the X-Axis only
- `ALT+Mouse Wheel` will zoom the graph in and out in the Y-Axis only
- `Ctrl+Click` will select a vertex
  - `Ctrl+Click` over an unselected vertex will add that vertex to the selection
  - `Ctrl+Click` over a previously selected vertex will remove that vertex from the selection
- `Ctrl+drag` on an empty area will create a rectangular area and select enclosed vertices

## Toolbar Buttons

The toggle button, when 'set' will cause a focused vertex (the vertex with the red arrow) to be moved to the center of the view

The toggle button, when 'set' will allow the user to draw a free-form shape that encloses the vertices they wish to select.

The toggle button, when 'set' will open a satellite mini view of the graph in the lower right corner. The mini-view can be manipulated with the mouse to affect the main view

The button will reset any visual transformations on the graph and center it at a best-effort size

The toggle button, when 'set' will open a rectangular magnification lens in the graph view

> > - MouseButton1 click-drag on the lens center circle to move the magnifier lens
> > - MouseButton1 click-draw on a lens edge diamond to resize the magnifier lens
> > - MouseButton1 click on the upper-right circle-cross to dispose of the magnifier lens
> > - MouseWheel will change the magnification of the lens

The button will open a Filter dialog. Select buttons in the dialog to hide specific vertices or edges in the display. The Filter dialog buttons are created by examining the graph vertex/edge properties to discover candidates for filtering.

The Arrangement menu is used to select one of several graph layout algorithms.

> > - Compact Hierarchical is the TidierTree Layout Algorithm. It builds a tree structure and attempts to reduce horizontal space.
> > - Hierarchical is a basic Tree algorithm with the root(s) at the top.
> > - Compact Radial is the TidierTree Layout Algorithm with the root(s) at the center and child vertices radiating outwards.
> > - Hierarchical MinCross is the Sugiyama Layout Algorithm with optimizations. It attempts to route edges around vertices in order to reduce crossing. There are four layering algorithms (below)
> > - Vertical Hierarchical MinCross is the Sugiyama Layout Algorithm with optimizations. It attempts to route edges around vertices in order to reduce crossing. If there is a favored EdgeType, an attempt is made to line up those favored edges so they are vertical in the presentation. There are four layering algorithms:
> > - Top Down - Biases the vertices to the top. Sources on the top row.
> > - Longest Path - Biases the vertices to the bottom. Sinks are on the bottom row.
> > - Network Simplex - Layers after finding an 'optimal tree' by not considering longer edges.
> > - Coffman Graham - Biases the vertices using a scheduling algorithm to minimize length. Tends to balance the graph around the middle.
> > - Circle will arrange vertices in a Circle.
> > - Force Balanced is a Force Directed Layout Algorithm using the the Kamada Kawai algorithm. It attempts to balance the graph by considering vertices and edge connections.
> > - Force Directed is a Force Directed Layout Algorithm using the Fructermann Reingold approach. It pushes unconnected vertices apart and draws connected vertices together.
> > - Radial is a Tree structure with the root(s) at the center and child vertices radiating outwards.
> > - Balloon is a Tree structure with the root(s) at the centers of circles in a radial pattern
> > - GEM (Graph Embedder) is a Force Directed layout with locally separated components

## Popup Actions

> ### Standard Popup Actions

> - Hide Selected - Causes the display to not show selected vertices.
> - Hide Unselected - Causes the display to not show unselected vertices.
> - Invert Selection - Unselects all selected nodes and selects all unselected nodes.
> - Grow Selection From Sources - Adds to the selection all vertices that have outgoing edges to the current selection.
> - Grow Selection To Targets - Adds to the selection all vertices that have incoming edges from the current selection.
> - Clear Selection - Clears all edge and vertex selection.
> - Display Selected As New Graph - Creates a new graph and display from the currently selected vertices.
> - Display Popup Windows - When toggled off no tooltip popups will be displayed.
> - Collapse Selected Vertices - The selected vertices are grouped into a single vertex.
> - Expand Selected Vertices - Any group vertices are reverted back to the vertices that it contains.
> - Grow Selection To Entire Component - Adds to the selection all vertices that are reachable from the currently selected vertices.

> ### Vertex Popup Actions

> - Select Vertex - Selects the vertex that this action was invoked on.
> - Deselect Vertex - Deselects the vertex that this action was invoked on.

> ### Edge Popup Actions

> - Go To Edge Source - Makes this edge's source vertex be the focused vertex.
> - Go To Edge Target - Makes this edge's destination vertex be the focused vertex.
> - Select Edge - Add this edge and its associated vertices to the selection
> - Deselect Edge - Removes this edge and its associated vertices from the selection

## Graph Type Display Options

> Graphs have a graph type which defines vertex types and edge types. Users can configure the display properties for each vertex and edge type. These options have the following subsections:

> ### Edge Colors

> > Allows setting the color for each edge type. Each Edge type will be listed with its current color.

> ### Miscellaneous

> - Default Vertex Color - color for vertices with no defined vertex type
> - Default Vertex Shape - shape for vertices with no defined vertex type
> - Default Edge Color - color for edges with no defined edge type
> - Favored Edge - edge type to be favored by graph layout algorithms

> ### Vertex Colors

> > Allows setting the color for each vertex type. Each vertex type will be listed with its current color.

> ### Vertex Shapes

> > Allows setting the shape for each vertex type. Each vertex type will be listed with a combo box for picking a supported shape. Supported shapes include Ellipse, Rectangle Diamond, TriangleUp, TriangleDown, Star, Pentagon, Hexagon, and Octagon.

Provided By: GraphDisplayBrokerPlugin

Related Topics:

- Graph Export