The CanvasGradient
.addColorStop()
method adds a new color stop, defined by an offset
and a color
, to a given canvas gradient.
Syntax
void gradient.addColorStop(offset, color);
Parameters
offset
- A number between
0
and1
, inclusive, representing the position of the color stop.0
represents the start of the gradient and1
represents the end; anINDEX_SIZE_ERR
is raised if the number is outside that range. color
- A CSS
<color>
value representing the color of the stop. ASYNTAX_ERR
is raised if the value cannot be parsed as a CSS<color>
value.
Examples
Adding stops to a gradient
This example uses the addColorStop
method to add stops to a linear CanvasGradient
object. The gradient is then used to fill a rectangle.
HTML
<canvas id="canvas"></canvas>
JavaScript
const canvas = document.getElementById('canvas'); const ctx = canvas.getContext('2d'); let gradient = ctx.createLinearGradient(0, 0, 200, 0); gradient.addColorStop(0, 'green'); gradient.addColorStop(.7, 'white'); gradient.addColorStop(1, 'pink'); ctx.fillStyle = gradient; ctx.fillRect(10, 10, 200, 100);
Result
Specifications
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'CanvasGradient.addColorStop' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
addColorStop | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 3.6 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
See also
- The interface defining this method:
CanvasGradient
CanvasRenderingContext2D.createLinearGradient()
CanvasRenderingContext2D.createRadialGradient()