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FEM: mesh region, initialize new obj with length 0.0, do not use the obj for mesh creation if references are empty or lenght is 0.0

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Bernd Hahnebach 2016-12-20 18:12:13 +01:00 committed by Yorik van Havre
parent a245bf2abc
commit 3842f9c80b
2 changed files with 30 additions and 24 deletions
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52
src/Mod/Fem/FemGmshTools.py
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@ -236,29 +236,35 @@ class FemGmshTools():
# print(mr_obj.Name)
# print(mr_obj.CharacteristicLength)
# print(Units.Quantity(mr_obj.CharacteristicLength).Value)
for sub in mr_obj.References:
# print(sub[0]) # Part the elements belongs to
# check if the shape of the mesh region is an element of the Part to mesh, if not try to find the element in the shape to mesh
search_ele_in_shape_to_mesh = False
if not self.part_obj.Shape.isSame(sub[0].Shape):
# print(" One element of the meshregion " + mr_obj.Name + " is not an element of the Part to mesh.")
# print(" But we gone try to find it in the Shape to mesh :-)")
search_ele_in_shape_to_mesh = True
for eles in sub[1]:
# print(eles) # element
if search_ele_in_shape_to_mesh:
# we gone try to find the element it in the Shape to mesh and use the found element as eles
ele_shape = FemMeshTools.get_element(sub[0], eles) # the method getElement(element) does not return Solid elements
found_element = FemMeshTools.find_element_in_shape(self.part_obj.Shape, ele_shape)
if found_element:
eles = found_element
else:
FreeCAD.Console.PrintError("One element of the meshregion " + mr_obj.Name + " could not be found in the Part to mesh. It will be ignored.\n")
# print(eles) # element
if eles not in self.ele_length_map:
self.ele_length_map[eles] = Units.Quantity(mr_obj.CharacteristicLength).Value
else:
FreeCAD.Console.PrintError("The element " + eles + " of the meshregion " + mr_obj.Name + " has been added to another mesh region.\n")
if mr_obj.CharacteristicLength:
if mr_obj.References:
for sub in mr_obj.References:
# print(sub[0]) # Part the elements belongs to
# check if the shape of the mesh region is an element of the Part to mesh, if not try to find the element in the shape to mesh
search_ele_in_shape_to_mesh = False
if not self.part_obj.Shape.isSame(sub[0].Shape):
# print(" One element of the meshregion " + mr_obj.Name + " is not an element of the Part to mesh.")
# print(" But we gone try to find it in the Shape to mesh :-)")
search_ele_in_shape_to_mesh = True
for eles in sub[1]:
# print(eles) # element
if search_ele_in_shape_to_mesh:
# we gone try to find the element it in the Shape to mesh and use the found element as eles
ele_shape = FemMeshTools.get_element(sub[0], eles) # the method getElement(element) does not return Solid elements
found_element = FemMeshTools.find_element_in_shape(self.part_obj.Shape, ele_shape)
if found_element:
eles = found_element
else:
FreeCAD.Console.PrintError("One element of the meshregion " + mr_obj.Name + " could not be found in the Part to mesh. It will be ignored.\n")
# print(eles) # element
if eles not in self.ele_length_map:
self.ele_length_map[eles] = Units.Quantity(mr_obj.CharacteristicLength).Value
else:
FreeCAD.Console.PrintError("The element " + eles + " of the meshregion " + mr_obj.Name + " has been added to another mesh region.\n")
else:
FreeCAD.Console.PrintError("The meshregion: " + mr_obj.Name + " is not used to create the mesh because the reference list is empty.\n")
else:
FreeCAD.Console.PrintError("The meshregion: " + mr_obj.Name + " is not used to create the mesh because the CharacteristicLength is 0.0 mm.\n")
for elel in self.ele_length_map:
ele_shape = FemMeshTools.get_element(self.part_obj, elel) # the method getElement(element) does not return Solid elements
ele_vertexes = FemMeshTools.get_vertexes_by_element(self.part_obj.Shape, ele_shape)

2
src/Mod/Fem/FemMeshRegion.py
View File

@ -31,7 +31,7 @@ import FreeCAD
import _FemMeshRegion
def makeFemMeshRegion(base_mesh, element_length=2.0, name="FEMMeshRegion"):
def makeFemMeshRegion(base_mesh, element_length=0.0, name="FEMMeshRegion"):
'''makeFemMeshRegion([length], [name]): creates a FEM mesh region object to define properties for a regon of a FEM mesh'''
obj = FreeCAD.ActiveDocument.addObject("Fem::FeaturePython", name)
_FemMeshRegion._FemMeshRegion(obj)