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FEM: input writer ccx, most constraints, use nodes from group data if available

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This commit is contained in:
Bernd Hahnebach 2016-10-17 10:22:57 +01:00
parent 1329857359
commit 6ab0937ea0
2 changed files with 31 additions and 6 deletions
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10
src/Mod/Fem/FemInputWriter.py
View File

@ -87,7 +87,7 @@ class FemInputWriter():
def get_constraints_fixed_nodes(self):
# get nodes
for femobj in self.fixed_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
femobj['Nodes'] = FemMeshTools.get_femnodes_by_references(self.femmesh, femobj['Object'].References)
femobj['Nodes'] = FemMeshTools.get_femnodes_by_femobj_with_references(self.femmesh, femobj)
# add nodes to constraint_conflict_nodes, needed by constraint plane rotation
for node in femobj['Nodes']:
self.constraint_conflict_nodes.append(node)
@ -95,7 +95,7 @@ class FemInputWriter():
def get_constraints_displacement_nodes(self):
# get nodes
for femobj in self.displacement_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
femobj['Nodes'] = FemMeshTools.get_femnodes_by_references(self.femmesh, femobj['Object'].References)
femobj['Nodes'] = FemMeshTools.get_femnodes_by_femobj_with_references(self.femmesh, femobj)
# add nodes to constraint_conflict_nodes, needed by constraint plane rotation
for node in femobj['Nodes']:
self.constraint_conflict_nodes.append(node)
@ -103,17 +103,17 @@ class FemInputWriter():
def get_constraints_planerotation_nodes(self):
# get nodes
for femobj in self.planerotation_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
femobj['Nodes'] = FemMeshTools.get_femnodes_by_references(self.femmesh, femobj['Object'].References)
femobj['Nodes'] = FemMeshTools.get_femnodes_by_femobj_with_references(self.femmesh, femobj)
def get_constraints_transform_nodes(self):
# get nodes
for femobj in self.transform_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
femobj['Nodes'] = FemMeshTools.get_femnodes_by_references(self.femmesh, femobj['Object'].References)
femobj['Nodes'] = FemMeshTools.get_femnodes_by_femobj_with_references(self.femmesh, femobj)
def get_constraints_temperature_nodes(self):
# get nodes
for femobj in self.temperature_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
femobj['Nodes'] = FemMeshTools.get_femnodes_by_references(self.femmesh, femobj['Object'].References)
femobj['Nodes'] = FemMeshTools.get_femnodes_by_femobj_with_references(self.femmesh, femobj)
def get_constraints_force_nodeloads(self):
# check shape type of reference shape

27
src/Mod/Fem/FemMeshTools.py
View File

@ -29,6 +29,17 @@ __url__ = "http://www.freecadweb.org"
import FreeCAD
def get_femnodes_by_femobj_with_references(femmesh, femobj):
node_set = []
if femmesh.GroupCount:
node_set = get_femnode_set_from_group_data(femmesh, femobj)
# print 'node_set_group: ', node_set
if not node_set:
node_set = get_femnodes_by_references(femmesh, femobj['Object'].References)
# print 'node_set_nogroup: ', node_set
return node_set
def get_femelements_by_references(femmesh, femelement_table, references):
'''get the femelements for a list of references
'''
@ -195,9 +206,23 @@ def get_femelement_sets(femmesh, femelement_table, fem_objects): # fem_objects
FreeCAD.Console.PrintError('Error in get_femelement_sets -- > femelements_count_ok() failed!\n')
def get_femnode_set_from_group_data(femmesh, fem_object):
# get femnodes from femmesh groupdata for reference shapes of each obj.References
# we assume the mesh group data fits with the reference shapes, no check is done in this regard !!!
# what happens if a reference shape was changed, but the mesh and the mesh groups were not created new !?!
obj = fem_object['Object']
if femmesh.GroupCount:
for g in femmesh.Groups:
grp_name = femmesh.getGroupName(g)
if grp_name.startswith(obj.Name + '_'):
if femmesh.getGroupElementType(g) == "Node":
print("Constraint: " + obj.Name + " --> " + "mesh group: " + grp_name)
group_nodes = femmesh.getGroupElements(g) # == ref_shape_femelements
return group_nodes
def get_femelement_sets_from_group_data(femmesh, fem_objects):
# get femelements from femmesh groupdata for reference shapes of each obj.References
print("")
count_femelements = 0
sum_group_elements = []
# we assume the mesh group data fits with the reference shapes, no check is done in this regard !!!