/// <summary>
/// Create geometry representation of wobj.
/// </summary>
/// <param name="frame">Wobj frame at cube centroid</param>
/// <returns></returns>
private static Solid vis_wobj(Plane frame)
{
List <Solid> model = new List <Solid>();
CoordinateSystem cs = CoordinateSystem.ByPlane(frame);
Vector z = frame.Normal.Reverse();
double h = frame.Origin.Z;
//Solid cube = Cuboid.ByLengths(cs, 40, 40, 40);
Solid chu0 = Cylinder.ByCoordinateSystemHeightRadii(cs.Translate(cs.ZAxis.Reverse(), 2 + 20), 2, 10, 10);
Solid bod0 = Cylinder.ByCoordinateSystemHeightRadii(cs.Translate(cs.ZAxis.Reverse(), 18 + 2 + 20), 18, 22, 22);
Solid bod1 = Cuboid.ByLengths(cs.Translate(z, h - 18 - (h - 18 - 18 - 2 - 20) / 2), 46, 46, h - 18 - 18 - 2 - 20);
Solid bod2 = Cylinder.ByCoordinateSystemHeightRadii(cs.Translate(z, h), 18, 22, 22);
//model.Add(cube);
model.Add(chu0);
model.Add(bod0);
model.Add(bod1);
model.Add(bod2);
Solid solid = Solid.ByUnion(model);
return(solid);
}