CanvasContext.setMiterLimit

解释：设置最大斜接长度，斜接长度指的是在两条线交汇处内角和外角之间的距离。当 setLineJoin() 为 miter 时，该设置才有效。超过最大倾斜长度的，连接处将以 lineJoin 为 bevel 来显示。

方法参数

Number miterLimitmiterLimit 参数说明：最大斜接长度。

示例 

在开发者工具中打开

图片示例

代码示例

<canvas canvas-id="myCanvas" class="myCanvas" />

Page({
    onLoad() {
        const canvasContext = swan.createCanvasContext('myCanvas');
        canvasContext.beginPath();
        canvasContext.setLineWidth(10);
        canvasContext.setLineJoin('miter');
        canvasContext.setMiterLimit(1);
        canvasContext.moveTo(10, 10);
        canvasContext.lineTo(100, 50);
        canvasContext.lineTo(10, 90);
        canvasContext.stroke();

        canvasContext.beginPath();
        canvasContext.setLineWidth(10);
        canvasContext.setLineJoin('miter');
        canvasContext.setMiterLimit(2);
        canvasContext.moveTo(50, 10);
        canvasContext.lineTo(140, 50);
        canvasContext.lineTo(50, 90);
        canvasContext.stroke();

        canvasContext.beginPath();
        canvasContext.setLineWidth(10);
        canvasContext.setLineJoin('miter');
        canvasContext.setMiterLimit(3);
        canvasContext.moveTo(90, 10);
        canvasContext.lineTo(180, 50);
        canvasContext.lineTo(90, 90);
        canvasContext.stroke();

        canvasContext.beginPath();
        canvasContext.setLineWidth(10);
        canvasContext.setLineJoin('miter');
        canvasContext.setMiterLimit(4);
        canvasContext.moveTo(130, 10);
        canvasContext.lineTo(220, 50);
        canvasContext.lineTo(130, 90);
        canvasContext.stroke();

        canvasContext.draw();
    }
});