/// <summary>
/// Gets the closest point on a surface to the input point
/// </summary>
/// <param name="surface"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <returns></returns>
private static PointUv ClosestPointOnTs(this ISurface surface, double x, double y, double z)
{
var r = (double[])surface.GetClosestPointOn(x, y, z);
return(new PointUv(r[0], r[1], r[2], r[3], r[4]));
}
