//finds if line is horizontal or vertical
public static bool CheckLineOrthogonal(Line2d line, double eps = 0)
{
bool check = false;
Point2d p1 = line.StartPoint;
Point2d p2 = line.EndPoint;
double xDiff = p1.X - p2.X;
double yDiff = p1.Y - p2.Y;
if (eps == 0)
{
if (xDiff == 0 || yDiff == 0)
{
check = true;
}
}
else
{
if (BasicUtility.CheckWithinRange(0, xDiff, eps) == -1 || BasicUtility.CheckWithinRange(0, yDiff, eps) == -1)
{
check = true;
}
else
{
check = false;
}
}
return(check);
}
