bsplinecurve bspline_3d_np_nc_nr 2 3 0 3 1 1 2 3  0 0 0 1  1 1 1 1  1 0 0 1  0 0 1 1
extsurf es_bspline_3d_np_nc_nr  bspline_3d_np_nc_nr 0 0 1
offset es_bspline_3d_np_nc_nr_of es_bspline_3d_np_nc_nr 1
mkface result es_bspline_3d_np_nc_nr_of 0 1 0 3
set MaxFTol 1e-6
set MaxETol 1e-6
set MaxVTol 1e-6
