... <看更多>

I found a great solution by Paul Bourke. Here it is, implemented in JavaScript: function line_intersect(x1, y1, x2, y2, x3, y3, x4, ... ... <看更多>

The graphs of two lines intersect at a point (s,t) when the point (s,t) is on both lines. The point (s,t) lies on the line ax+by=c when as+bt=c. ... <看更多>