middleInside function
dynamic
middleInside(
- dynamic a,
- dynamic b
Implementation
middleInside(a, b) {
var p = a;
bool inside = false;
var px = (a.x + b.x) / 2, py = (a.y + b.y) / 2;
do {
if (((p.y > py) != (p.next.y > py)) &&
p.next.y != p.y &&
(px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x)) {
inside = !inside;
}
p = p.next;
} while (p != a);
return inside;
}