1ellipse ellipse 0 0 0 30 10
2extsurf es_ellipse ellipse 0 0 1
3trim es_ellipse_tr es_ellipse 0 3 0 50
4trim es_ellipse_tr_tr es_ellipse_tr 0 2 0 30
5mkface result es_ellipse_tr_tr 0 1 0 20
6set MaxFTol 9.9999999999999995e-08
7set MaxETol 9.9999999999999995e-08
8set MaxVTol 9.9999999999999995e-08
9