bsplinecurve bspline_3d_np_nc_r 2 3 0 3 1 1 2 3 0 0 0 2 1 1 1 1 1 0 0 1 0 0 1 2 extsurf es_bspline_3d_np_nc_r bspline_3d_np_nc_r 0 0 1 offset es_bspline_3d_np_nc_r_of es_bspline_3d_np_nc_r 1 mkface result es_bspline_3d_np_nc_r_of 0 1 0 3 set MaxFTol 9.9999999999999995e-08 set MaxETol 7.6154144723597664e-07 set MaxVTol 7.6154144723597685e-07