CanvasRenderingContext2D.currentTransform

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.

Syntax

ctx.currentTransform [= value];

value

A DOMMatrix or SVGMatrix object to use as the current transformation matrix.

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

See also

• The interface defining this property: CanvasPattern
• SVGMatrix
• DOMMatrix