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 9.9999999999999995e-08
set MaxETol 6.3464882302094797e-07
set MaxVTol 6.3464882302094818e-07