public Segment2f(Vector2F p0, Vector2F p1)
{
//update_from_endpoints(p0, p1);
Center = 0.5f * (p0 + p1);
Direction = p1 - p0;
Extent = 0.5f * Direction.Normalize();
}
public static float PlaneAngleSignedD(Vector2F vFrom, Vector2F vTo)
{
vFrom.Normalize();
vTo.Normalize();
float fSign = Math.Sign(vFrom.Cross(vTo));
float fAngle = fSign * Vector2F.AngleD(vFrom, vTo);
return(fAngle);
}
void update_from_endpoints(Vector2F p0, Vector2F p1)
{
Center = 0.5f * (p0 + p1);
Direction = p1 - p0;
Extent = 0.5f * Direction.Normalize();
}