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The CanvasRenderingContext2D
.isPointInStroke()
method of the Canvas 2D API reports whether or not the specified point is inside the area contained by the stroking of a path.
Syntax
boolean ctx.isPointInStroke(x, y); boolean ctx.isPointInStroke(path, x, y);
Parameters
- x
- The X coordinate of the point to check.
- y
- The Y coordinate of the point to check.
-
path
-
A
Path2D
path to use.
Return value
-
Boolean
-
A Boolean, which is
true
if the point is inside the area contained by the stroking of a path, otherwisefalse
.
Examples
Using the isPointInStroke
method
This is just a simple code snippet which uses the isPointInStroke
method to check if a point is inside the area contained by the stroking of a path.
HTML
<canvas id="canvas"></canvas>
JavaScript
var canvas = document.getElementById("canvas"); var ctx = canvas.getContext("2d"); ctx.rect(10, 10, 100, 100); ctx.stroke(); console.log(ctx.isPointInStroke(10, 10)); // true
Edit the code below, see your changes update live in the canvas and watch for loggings in your console:
Specifications
Specification | Status | Comment |
---|---|---|
WHATWG HTML Living Standard The definition of 'CanvasRenderingContext2D.isPointInStroke' in that specification. |
Living Standard |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Path parameter | (Yes) | 31 (31) | Not supported | (Yes) | Not supported |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Path parameter | ? | ? | 31.0 (31) | ? | ? | ? |
See also
- The interface defining it,
CanvasRenderingContext2D
.