如何使用Paper.js判断圆是否在圆内？

Question

如何判断一个圆是否在另一个圆内？我以为我已经使用 isInside 方法弄清楚了。

注意：此代码将在 http://sketch.paperjs.org

上运行

期望 Circle2 在 Circle1 内

var circle1 = new Path.Circle(new Point(100, 100), 100);
var circle2 = new Path.Circle(new Point(100, 100), 50);

circle1.strokeWidth = 2;
circle1.strokeColor = "black";
circle1.fillColor = "blue";
circle2.strokeWidth = 2;
circle2.strokeColor = "black";
circle2.fillColor = "green";

console.log(circle1.isInside(circle2));
console.log(circle2.isInside(circle1));

输出：

假假

Answer 1

从文档中isInside需要将矩形对象作为参数传入，而不是路径。

工作代码

var circle1 = new Path.Circle(new Point(100, 100), 100);
var circle2 = new Path.Circle(new Point(100, 100), 50);

circle1.strokeWidth = 2;
circle1.strokeColor = "black";
circle1.fillColor = "blue";
circle2.strokeWidth = 2;
circle2.strokeColor = "black";
circle2.fillColor = "green";

console.log(circle1.isInside(circle2.bounds));
console.log(circle2.isInside(circle1.bounds));

输出：

假真