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Canvas isPointInPath() 方法

❮ Canvas 参考

示例

如果点 20, 50 在当前路径中,则绘制一个矩形

YourbrowserdoesnotsupporttheHTML5canvastag.

JavaScript

const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
ctx.rect(20, 20, 150, 100);
if (ctx.isPointInPath(20, 50)) {
 ctx.stroke();
};
自己尝试 »

描述

isPointInPath() 方法如果指定的点在当前路径中则返回 true,否则返回 false。

JavaScript 语法 context.isPointInPath(x, y);

参数值

参数 描述
x 要测试的 x 坐标
y 要测试的 y 坐标

浏览器支持

The <canvas> 元素是 HTML5 标准 (2014)。

isPointInPath() 在所有现代浏览器中都受支持

Chrome Edge Firefox Safari Opera IE
9-11

❮ Canvas 参考
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