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home-layout.njk |
Rough.js is a small (<9kB 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.
Install from npm:
npm install --save roughjsAnd use it in your code:
import rough from 'roughjs';View Full Rough.js API is available on Github.
const rc = rough.canvas(document.getElementById('canvas'));
rc.rectangle(10, 10, 200, 200); // x, y, width, heightor SVG
const rc = rough.svg(svg);
let node = rc.rectangle(10, 10, 200, 200); // x, y, width, height
svg.appendChild(node);
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
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, sunburst, dashed, or zigzag-line
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 });
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:
Core algorithms for drawing lines and ellipse outlines were adapted from handy processing lib.
Algorithm to convert SVG arcs to Canvas described here was adapted from Mozilla codebase
Support development of this project by sponsoring on Github Sponsors.
Alternatively, you can also sponsor or Open Collective.
This project is supported by:
