First of all you should load the grid-status-file to see the computed piece of the surface. This piece contains a planar geodesic line and a straight line as boundaries. You can carry out one reflection on the planar geodesic line and then two 180-degree rotations around straight lines or you can carry out one 180-degree rotation and then two reflections on planar geodesic lines. Finally you should load the patch-status-file to see the surface.