# Path2D

> 基础库 2.11.0 开始支持，低版本需做[兼容处理](1003706)。

> 相关文档: [画布指南](/miniprogram/dev/framework/ability/canvas.md)、[canvas 组件介绍](/miniprogram/dev/component/canvas.md)

Canvas 2D API 的接口 Path2D 用来声明路径，此路径稍后会被CanvasRenderingContext2D 对象使用。CanvasRenderingContext2D 接口的 路径方法 也存在于 Path2D 这个接口中，允许你在 canvas 中根据需要创建可以保留并重用的路径。

## 方法

### [Path2D.addPath(Path2D path)](/miniprogram/dev/api/canvas/Path2D.addPath)

添加路径到当前路径。

### [Path2D.arc(number x, number y, number radius, number startAngle, number endAngle, boolean counterclockwise)](/miniprogram/dev/api/canvas/Path2D.arc)

添加一段圆弧路径。

### [Path2D.arcTo(number x1, number y1, number x2, number y2, number radius)](/miniprogram/dev/api/canvas/Path2D.arcTo)

通过给定控制点添加一段圆弧路径。

### [Path2D.bezierCurveTo(number cp1x, number cp1y, number cp2x, number cp2y, number x, number y)](/miniprogram/dev/api/canvas/Path2D.bezierCurveTo)

添加三次贝塞尔曲线路径。

### [Path2D.closePath()](/miniprogram/dev/api/canvas/Path2D.closePath)

闭合路径到起点。

### [Path2D.ellipse(number x, number y, number radiusX, number radiusY, number rotation, number startAngle, number endAngle, boolean counterclockwise)](/miniprogram/dev/api/canvas/Path2D.ellipse)

添加椭圆弧路径

### [Path2D.lineTo(number x, number y)](/miniprogram/dev/api/canvas/Path2D.lineTo)

添加直线路径

### [Path2D.moveTo(number x, number y)](/miniprogram/dev/api/canvas/Path2D.moveTo)

移动路径开始点

### [Path2D.quadraticCurveTo(number cpx, number cpy, number x, number y)](/miniprogram/dev/api/canvas/Path2D.quadraticCurveTo)

添加二次贝塞尔曲线路径。

### [Path2D.rect(number x, number y, number width, number height)](/miniprogram/dev/api/canvas/Path2D.rect)

添加方形路径。