Canvas isPointInPath() methode
Definitie en gebruik
isPointInPath() De methode retourneert true； anders retourneert het false。
Voorbeeld
Teken van een rechthoek, als de punt 20,50 zich op de huidige pad bevindt:
JavaScript:
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.rect(20,20,150,100);
if (ctx.isPointInPath(20,50))
{
ctx.stroke();
};
语法
context.isPointInPath(x,y);
Parameter value
| Parameter | Description |
|---|---|
| x | Tested x coordinate |
| y | Tested y coordinate |
Browser support
The numbers in the table indicate the first browser version that fully supports this property.
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome | Edge | Firefox | Safari | Opera |
| 4.0 | 9.0 | 3.6 | 4.0 | 10.1 |
Note:Internet Explorer 8 and earlier versions do not support the <canvas> element.
