private static LineGeometry ExtendLineGeometry(LineGeometry geometry, double exLength)
{
LineGeometry geometry2 = (LineGeometry)geometry.Clone();
PointDouble startPoint = geometry.StartPoint;
PointDouble endPoint = geometry.EndPoint;
if (startPoint != endPoint)
{
VectorDouble vec = (VectorDouble)(endPoint - startPoint);
VectorDouble num4 = VectorDouble.Normalize(vec);
PointDouble num5 = startPoint - ((PointDouble)(num4 * exLength));
PointDouble num6 = endPoint + ((PointDouble)(num4 * exLength));
geometry2.StartPoint = num5;
geometry2.EndPoint = num6;
}
return(geometry2);
}
