public clsPoint PointFromLambda(double l)
{
clsLine l1 = default(clsLine);
l1 = Copy();
l1.Scale(l);
return(l1.P2);
}
public static clsPoint ProjectPoint(clsPoint p1, clsLine l1)
{
double d = 0;
clsPoint pt1 = new clsPoint();
clsLine l2 = new clsLine();
d = Dist(p1, l1);
pt1 = p1.Copy();
l2 = (clsLine)l1.Normal();
l2.Normalise();
l2.Scale(-d);
pt1.Move(l2.P2.X, l2.P2.Y);
return(pt1);
}