/// <summary>
/// Return a single intersection point of a line and a contour
/// </summary>
/// <param name="line"></param>
/// <param name="contour"></param>
/// <returns></returns>
private Point LineContourIntersection(Line line, HObject contour)
{
HTuple x, y, _, contourLength;
HalconScripts.LongestXLD(contour, out contour, out contourLength);
HOperatorSet.IntersectionLineContourXld(contour, line.YStart, line.XStart, line.YEnd, line.XEnd, out y,
out x, out _);
return(new Point(x.D, y.D));
}