remove notch from zero roughness ellipses (#189)

This commit is contained in:
Preet
2021-11-02 15:35:41 -07:00
committed by GitHub
parent 3e3d02d63e
commit 2e78a0005c
4 changed files with 274 additions and 234 deletions

425
package-lock.json generated
View File

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"dev": true
},
"uri-js": {

View File

@@ -30,15 +30,15 @@
},
"homepage": "https://roughjs.com",
"devDependencies": {
"@rollup/plugin-node-resolve": "^13.0.0",
"@rollup/plugin-typescript": "^8.2.1",
"@typescript-eslint/eslint-plugin": "^4.24.0",
"@typescript-eslint/parser": "^4.24.0",
"eslint": "^7.26.0",
"rollup": "^2.47.0",
"@rollup/plugin-node-resolve": "^13.0.6",
"@rollup/plugin-typescript": "^8.3.0",
"@typescript-eslint/eslint-plugin": "^4.33.0",
"@typescript-eslint/parser": "^4.33.0",
"eslint": "^7.32.0",
"rollup": "^2.59.0",
"rollup-plugin-terser": "^7.0.2",
"tslib": "^2.2.0",
"typescript": "^4.2.4"
"tslib": "^2.3.1",
"typescript": "^4.4.4"
},
"dependencies": {
"path-data-parser": "^0.1.0",

View File

@@ -87,7 +87,7 @@ export function generateEllipseParams(width: number, height: number, o: Resolved
export function ellipseWithParams(x: number, y: number, o: ResolvedOptions, ellipseParams: EllipseParams): EllipseResult {
const [ap1, cp1] = _computeEllipsePoints(ellipseParams.increment, x, y, ellipseParams.rx, ellipseParams.ry, 1, ellipseParams.increment * _offset(0.1, _offset(0.4, 1, o), o), o);
let o1 = _curve(ap1, null, o);
if (!o.disableMultiStroke) {
if ((!o.disableMultiStroke) && (o.roughness !== 0)) {
const [ap2] = _computeEllipsePoints(ellipseParams.increment, x, y, ellipseParams.rx, ellipseParams.ry, 1.5, 0, o);
const o2 = _curve(ap2, null, o);
o1 = o1.concat(o2);
@@ -403,12 +403,16 @@ function _computeEllipsePoints(increment: number, cx: number, cy: number, rx: nu
const corePoints: Point[] = [];
const allPoints: Point[] = [];
const radOffset = _offsetOpt(0.5, o) - (Math.PI / 2);
const coreOnly = o.roughness === 0;
allPoints.push([
_offsetOpt(offset, o) + cx + 0.9 * rx * Math.cos(radOffset - increment),
_offsetOpt(offset, o) + cy + 0.9 * ry * Math.sin(radOffset - increment),
]);
for (let angle = radOffset; angle < (Math.PI * 2 + radOffset - 0.01); angle = angle + increment) {
if (!coreOnly) {
allPoints.push([
_offsetOpt(offset, o) + cx + 0.9 * rx * Math.cos(radOffset - increment),
_offsetOpt(offset, o) + cy + 0.9 * ry * Math.sin(radOffset - increment),
]);
}
const endAngle = Math.PI * 2 + (coreOnly ? 0 : (radOffset - 0.01));
for (let angle = radOffset; angle < endAngle; angle = angle + increment) {
const p: Point = [
_offsetOpt(offset, o) + cx + rx * Math.cos(angle),
_offsetOpt(offset, o) + cy + ry * Math.sin(angle),
@@ -416,18 +420,20 @@ function _computeEllipsePoints(increment: number, cx: number, cy: number, rx: nu
corePoints.push(p);
allPoints.push(p);
}
allPoints.push([
_offsetOpt(offset, o) + cx + rx * Math.cos(radOffset + Math.PI * 2 + overlap * 0.5),
_offsetOpt(offset, o) + cy + ry * Math.sin(radOffset + Math.PI * 2 + overlap * 0.5),
]);
allPoints.push([
_offsetOpt(offset, o) + cx + 0.98 * rx * Math.cos(radOffset + overlap),
_offsetOpt(offset, o) + cy + 0.98 * ry * Math.sin(radOffset + overlap),
]);
allPoints.push([
_offsetOpt(offset, o) + cx + 0.9 * rx * Math.cos(radOffset + overlap * 0.5),
_offsetOpt(offset, o) + cy + 0.9 * ry * Math.sin(radOffset + overlap * 0.5),
]);
if (!coreOnly) {
allPoints.push([
_offsetOpt(offset, o) + cx + rx * Math.cos(radOffset + Math.PI * 2 + overlap * 0.5),
_offsetOpt(offset, o) + cy + ry * Math.sin(radOffset + Math.PI * 2 + overlap * 0.5),
]);
allPoints.push([
_offsetOpt(offset, o) + cx + 0.98 * rx * Math.cos(radOffset + overlap),
_offsetOpt(offset, o) + cy + 0.98 * ry * Math.sin(radOffset + overlap),
]);
allPoints.push([
_offsetOpt(offset, o) + cx + 0.9 * rx * Math.cos(radOffset + overlap * 0.5),
_offsetOpt(offset, o) + cy + 0.9 * ry * Math.sin(radOffset + overlap * 0.5),
]);
}
return [allPoints, corePoints];
}

View File

@@ -0,0 +1,25 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, minimum-scale=1, initial-scale=1, user-scalable=yes">
<title>RoughJS Ellipse</title>
</head>
<body>
<canvas width="800" height="800"></canvas>
<script type="module">
import rough from '../../bin/rough.js';
const canvas = document.querySelector('canvas');
const rc = rough.canvas(canvas);
rc.ellipse(300, 350, 380, 280, { roughness: 2 });
rc.ellipse(200, 150, 380, 280, { roughness: 1 });
rc.ellipse(400, 150, 380, 280, { roughness: 0 });
</script>
</body>
</html>