public Arc(Point2 head, Point2 body, Point2 tail)
{
Head = head;
Body = body;
Tail = tail;
}
public static bool IsSegmentsProperIntersection(Point2 a1, Point2 a2, Point2 b1, Point2 b2)
{
double c1 = Vector2.Cross(a2 - a1, b1 - a1),
c2 = Vector2.Cross(a2 - a1, b2 - a1),
c3 = Vector2.Cross(b2 - b1, a1 - b1),
c4 = Vector2.Cross(b2 - b1, a2 - b1);
return(c1.DCompareTo(0) * c2.DCompareTo(0) < 0 && c3.CompareTo(0) * c4.DCompareTo(0) < 0);
}
private DirectedSegment2(DirectedSegment2 ds)
{
P1 = ds.P1;
P2 = ds.P2;
}
public bool Contains(Point2 p, double eps = Constants.DEFAULT_EPS)
{
var d = p.DistanceTo(this);
return(p.DistanceTo(this).Near(0, eps));
}
public DirectedSegment2(Point2 p1, Point2 p2)
{
P1 = p1;
P2 = p2;
}