--- /dev/null
+bsplinecurve bspline_3d_np_c_nr 2 3 0 3 1 1 2 3 0 0 0 1 1 1 1 1 1 0 0 1 0 0 0 1
+extsurf es_bspline_3d_np_c_nr bspline_3d_np_c_nr 0 0 1
+trim es_bspline_3d_np_c_nr_tr es_bspline_3d_np_c_nr 0 1 0 1
+mkface result es_bspline_3d_np_c_nr_tr 0 .5 0 .5
+set MaxFTol 9.9999999999999995e-08
+set MaxETol 9.9999999999999995e-08
+set MaxVTol 9.9999999999999995e-08