This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The Path2D()
constructor returns a newly instantiated Path2D
object, optionally with another path as an argument (creates a copy), or optionally with a string consisting of SVG path data.
new Path2D(); new Path2D(path); new Path2D(d);
path
Optional
Path2D
object, a copy of the path
argument is created.d
Optional
This is just a simple code snippet which creates and copies Path2D
paths.
var canvas = document.getElementById('canvas'); var ctx = canvas.getContext('2d'); var path1 = new Path2D(); path1.rect(10, 10, 100,100); var path2 = new Path2D(path1); path2.moveTo(220, 60); path2.arc(170, 60, 50, 0, 2 * Math.PI); ctx.stroke(path2);
Edit the code below and see your changes update live in the canvas:
<canvas id="canvas" width="400" height="200" class="playable-canvas"></canvas> <div class="playable-buttons"> <input id="edit" type="button" value="Edit" /> <input id="reset" type="button" value="Reset" /> </div> <textarea id="code" class="playable-code" style="height: 150px"> var path1 = new Path2D(); path1.rect(10, 10, 100,100); var path2 = new Path2D(path1); path2.moveTo(220, 60); path2.arc(170, 60, 50, 0, 2 * Math.PI); ctx.stroke(path2);</textarea>
var canvas = document.getElementById("canvas"); var ctx = canvas.getContext("2d"); var textarea = document.getElementById("code"); var reset = document.getElementById("reset"); var edit = document.getElementById("edit"); var code = textarea.value; function drawCanvas() { ctx.clearRect(0, 0, canvas.width, canvas.height); eval(textarea.value); } reset.addEventListener("click", function() { textarea.value = code; drawCanvas(); }); edit.addEventListener("click", function() { textarea.focus(); }) textarea.addEventListener("input", drawCanvas); window.addEventListener("load", drawCanvas);
This is just a simple code snippet which creates a Path2D
path using SVG path data. The path will move to point (M10 10
) and then move horizontally 80 points to the right (h 80
), then 80 points down (v 80
), then 80 points to the left (h -80
), and then back to the start (z
).
var canvas = document.getElementById('canvas'); var ctx = canvas.getContext('2d'); var p = new Path2D('M10 10 h 80 v 80 h -80 Z'); ctx.fill(p);
Edit the code below and see your changes update live in the canvas:
<canvas id="canvas" width="400" height="200" class="playable-canvas"></canvas> <div class="playable-buttons"> <input id="edit" type="button" value="Edit" /> <input id="reset" type="button" value="Reset" /> </div> <textarea id="code" class="playable-code"> var p = new Path2D("M10 10 h 80 v 80 h -80 Z"); ctx.fill(p);</textarea>
var canvas = document.getElementById("canvas"); var ctx = canvas.getContext("2d"); var textarea = document.getElementById("code"); var reset = document.getElementById("reset"); var edit = document.getElementById("edit"); var code = textarea.value; function drawCanvas() { ctx.clearRect(0, 0, canvas.width, canvas.height); eval(textarea.value); } reset.addEventListener("click", function() { textarea.value = code; drawCanvas(); }); edit.addEventListener("click", function() { textarea.focus(); }) textarea.addEventListener("input", drawCanvas); window.addEventListener("load", drawCanvas);
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'Path2D()' in that specification. | Living Standard | Initial definition. |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | Yes | Yes | 31 | ? | Yes | 10 |
Path2D() constructor
|
Yes | Yes
|
31 | ? | Yes | 10 |
addPath
|
Yes | ? | 34 | No | Yes | Yes |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | Yes | Yes | ? | 31 | Yes | No | Yes |
Path2D() constructor
|
No | 42 | ? | 31 | Yes | No | 4.0 |
addPath
|
Yes | Yes | ? | 34 | Yes | Yes | Yes |
Path2D
, the interface this constructor belongs to.
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Path2D/Path2D