FEM: writer base, add method to retieve all known sets

src/Mod/Fem/femsolver/writerbase.py

@@ -133,7 +133,39 @@ class FemInputWriter():
     # use sorted to be sure the order is the same on different runs
     # be aware a sorted set returns a list, because set are not sorted by default
     #     - done in return value of meshtools.get_femnodes_by_femobj_with_references
-    # TODO FIXME might be appropriate for element sets too
+    # TODO FIXME might be appropriate for element sets and surfaceface sets too
+
+    # ********************************************************************************************
+    # ********************************************************************************************
+    # get all known sets
+    def get_mesh_sets(self):
+        FreeCAD.Console.PrintMessage(
+            "Get mesh data for "
+            "node sets (groups), surface sets (groups) and element sets (groups)\n"
+        )
+
+        # materials and element geometry element sets getter
+        self.get_element_sets_material_and_femelement_geometry()
+
+        # constraints element sets getter
+        self.get_constraints_centrif_elements()
+
+        # constraints node sets getter
+        self.get_constraints_fixed_nodes()
+        self.get_constraints_displacement_nodes()
+        self.get_constraints_planerotation_nodes()
+
+        # constraints suface sets getter
+        self.get_constraints_contact_faces()
+        self.get_constraints_tie_faces()
+        self.get_constraints_sectionprint_faces()
+        self.get_constraints_transform_nodes()
+        self.get_constraints_temperature_nodes()
+
+        # constraints sets with constraint data
+        self.get_constraints_force_nodeloads()
+        self.get_constraints_pressure_faces()
+        self.get_constraints_heatflux_faces()
 
     # ********************************************************************************************
     # ********************************************************************************************