Package Exports
- roughjs
- roughjs/bin/canvas
- roughjs/bin/generator.js
- roughjs/bin/math
- roughjs/bin/renderer
- roughjs/bin/rough
- roughjs/bin/svg
- roughjs/bundled/rough.esm
- roughjs/bundled/rough.esm.js
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (roughjs) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
Rough.js
Rough.js is a small (~8.5kB gzipped) graphics library that lets you draw in a sketchy, hand-drawn-like, style. The library defines primitives to draw lines, curves, arcs, polygons, circles, and ellipses. It also supports drawing SVG paths.
Rough.js works with both Canvas and SVG.
@RoughLib on Twitter.
Install
The latest Rough.js can be downloaded from the dist folder.
or from npm:
npm install --save roughjs
Usage
const rc = rough.canvas(document.getElementById('canvas'));
rc.rectangle(10, 10, 200, 200); // x, y, width, height
or SVG
const rc = rough.svg(svg);
let node = rc.rectangle(10, 10, 200, 200); // x, y, width, height
svg.appendChild(node);
Lines and Ellipses
rc.circle(80, 120, 50); // centerX, centerY, diameter
rc.ellipse(300, 100, 150, 80); // centerX, centerY, width, height
rc.line(80, 120, 300, 100); // x1, y1, x2, y2
Filling
rc.circle(50, 50, 80, { fill: 'red' }); // fill with red hachure
rc.rectangle(120, 15, 80, 80, { fill: 'red' });
rc.circle(50, 150, 80, {
fill: "rgb(10,150,10)",
fillWeight: 3 // thicker lines for hachure
});
rc.rectangle(220, 15, 80, 80, {
fill: 'red',
hachureAngle: 60, // angle of hachure,
hachureGap: 8
});
rc.rectangle(120, 105, 80, 80, {
fill: 'rgba(255,0,200,0.2)',
fillStyle: 'solid' // solid fill
});
Fill styles can be: hachure(default), solid, zigzag, cross-hatch, dots, dashed, or zigzag-line
Sketching style
rc.rectangle(15, 15, 80, 80, { roughness: 0.5, fill: 'red' });
rc.rectangle(120, 15, 80, 80, { roughness: 2.8, fill: 'blue' });
rc.rectangle(220, 15, 80, 80, { bowing: 6, stroke: 'green', strokeWidth: 3 });
SVG Paths
rc.path('M80 80 A 45 45, 0, 0, 0, 125 125 L 125 80 Z', { fill: 'green' });
rc.path('M230 80 A 45 45, 0, 1, 0, 275 125 L 275 80 Z', { fill: 'purple' });
rc.path('M80 230 A 45 45, 0, 0, 1, 125 275 L 125 230 Z', { fill: 'red' });
rc.path('M230 230 A 45 45, 0, 1, 1, 275 275 L 275 230 Z', { fill: 'blue' });
SVG Path with simplification:
Examples
API & Documentation
Credits
Some of the core algorithms were adapted from handy processing lib.
Algorithm to convert SVG arcs to Canvas described here was adapted from Mozilla codebase