CanvasRenderingContext2D.currentTransform
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The
CanvasRenderingContext2D.currentTransform
property of the Canvas 2D API returns or sets a DOMMatrix
(current
specification) or SVGMatrix
(old specification)
object for the current transformation matrix.
Value
Examples
Manually changing the matrix
This example uses the currentTransform
property to set a transformation
matrix. A rectangle is then drawn using that transformation.
HTML
<canvas id="canvas"></canvas>
JavaScript
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
let matrix = ctx.currentTransform;
matrix.a = 1;
matrix.b = 1;
matrix.c = 0;
matrix.d = 1;
matrix.e = 0;
matrix.f = 0;
ctx.currentTransform = matrix;
ctx.fillRect(0, 0, 100, 100);
Result
Browser compatibility
BCD tables only load in the browser
See also
- The interface defining this property:
CanvasPattern
SVGMatrix
DOMMatrix