CanvasPattern.setTransform()

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The CanvasPattern.setTransform() method uses an SVGMatrix object as the pattern's transformation matrix and invokes it on the pattern.

Syntax

void pattern.setTransform(matrix);

Parameters

matrix
An SVGMatrix to use as the pattern's transformation matrix.

Examples

Using the setTransform method

This is just a simple code snippet which uses the setTransform method to create a CanvasPattern with the specified pattern transformation from an SVGMatrix. The pattern gets applied if you set it as the current fillStyle and gets drawn onto the canvas when using the fillRect() method, for example.

HTML

<canvas id="canvas"></canvas>
<svg id="svg1"></svg>

JavaScript

var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');

var svg1 = document.getElementById('svg1');
var matrix = svg1.createSVGMatrix();

var img = new Image();
img.src = 'https://mdn.mozillademos.org/files/222/Canvas_createpattern.png';

img.onload = function() {
  var pattern = ctx.createPattern(img, 'repeat');
  pattern.setTransform(matrix.rotate(-45).scale(1.5));
  ctx.fillStyle = pattern;
  ctx.fillRect(0, 0, 400, 400);
};

Edit the code below and see your changes update live in the canvas:

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'CanvasPattern.setTransform' in that specification.
Living Standard  

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No ?33 ?93.1
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support ? ? ?33 ? ? ?

See also

Document Tags and Contributors

 Contributors to this page: fscholz, nmve
 Last updated by: fscholz,