android - 如何判断两条线段是否相交

Question

RT，两条曲线都是由触发的点连接的贝塞尔曲线。求，如何判断两个贝塞尔曲线是否是相交的，求指教。

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提了好久都没有人来答，那现在问题改简单一下，看看有什么好答案。那么要如何判断两条直线段是否相交呢？

Answer 1

Using the available classes from the 2D Graphics API.

Rectangle r1 = new Rectangle(100, 100, 100, 100); Line2D l1 = new
Line2D.Float(0, 200, 200, 0); 
System.out.println("l1.intsects(r1) = " + l1.intersects(r1));

传送门:
1. How to check intersection between a line and a rectangle?
2. How do you detect where two line segments intersect?