FEM: calculix prechecks, beamsections and mesh without geometry link is not allowed

src/Mod/Fem/femexamples/ccx_cantilever_ele_seg2.py

@@ -72,6 +72,7 @@ def setup(doc=None, solvertype="ccxtools"):
     # setup CalculiX cantilever
     doc = setup_cantilever_base_edge(doc, solvertype)
     femmesh_obj = doc.getObject(get_meshname())
+    geom_obj = doc.getObject("CantileverLine")
 
     # load the seg2 mesh
     from .meshes.mesh_canticcx_seg2 import create_nodes, create_elements
@@ -87,6 +88,7 @@ def setup(doc=None, solvertype="ccxtools"):
     femmesh_obj.FemMesh = new_fem_mesh
 
     # set mesh obj parameter
+    femmesh_obj.Part = geom_obj
     femmesh_obj.SecondOrderLinear = False
     femmesh_obj.ElementDimension = "1D"
     femmesh_obj.ElementOrder = "1st"

src/Mod/Fem/femtools/checksanalysis.py

@@ -338,6 +338,14 @@ def check_member_for_solver_calculix(analysis, solver, mesh, member):
                 message += (
                     "Beam sections defined but FEM mesh has no edge elements.\n"
                 )
+            if not (
+                hasattr(mesh, "Shape")
+                or hasattr(mesh, "Part")
+            ):
+                message += (
+                    "Mesh without geometry link. "
+                    "The mesh needs to know his geometry for the beam rotations.\n"
+                )
         if len(member.geos_beamrotation) > 1:
             message += (
                 "Multiple beam rotations in one analysis are not supported at the moment.\n"