# diagonal is better, 0 if error occurs.
def BestSplit (self, IDOfQuad, theCriterion):
return self.editor.BestSplit(IDOfQuad, GetFunctor(theCriterion))
+
+ ## Split quafrangle faces near triangular facets of volumes
+ #
+ def SplitQuadsNearTriangularFacets(self):
+ faces_array = self.GetElementsByType(SMESH.FACE)
+ for face_id in faces_array:
+ if self.GetElemNbNodes(face_id) == 4: # quadrangle
+ quad_nodes = self.mesh.GetElemNodes(face_id)
+ node1_elems = self.GetNodeInverseElements(quad_nodes[1 -1])
+ isPrismFound = False
+ for node1_elem in node1_elems:
+ if not isPrismFound:
+ if self.GetElementType(node1_elem, True) == SMESH.VOLUME:
+ nb_nodes = self.GetElemNbNodes(node1_elem)
+ if 3 < nb_nodes and nb_nodes < 7: # tetra or penta, or prism
+ volume_elem = node1_elem
+ volume_nodes = self.mesh.GetElemNodes(volume_elem)
+ if volume_nodes.count(quad_nodes[2 -1]) > 0: # 1,2
+ if volume_nodes.count(quad_nodes[4 -1]) > 0: # 1,2,4
+ isVolumeFound = True
+ if volume_nodes.count(quad_nodes[3 -1]) == 0: # 1,2,4 & !3
+ self.SplitQuad([face_id], False) # diagonal 2-4
+ elif volume_nodes.count(quad_nodes[3 -1]) > 0: # 1,2,3 & !4
+ isVolumeFound = True
+ self.SplitQuad([face_id], True) # diagonal 1-3
+ elif volume_nodes.count(quad_nodes[4 -1]) > 0: # 1,4 & !2
+ if volume_nodes.count(quad_nodes[3 -1]) > 0: # 1,4,3 & !2
+ isVolumeFound = True
+ self.SplitQuad([face_id], True) # diagonal 1-3
+
+ ## @brief Split hexahedrons into tetrahedrons.
+ #
+ # Use pattern mapping functionality for splitting.
+ # @param theObject object to take list of hexahedrons from; is mesh, submesh or group.
+ # @param theNode000,theNode001 is in range [0,7]; give an orientation of the
+ # pattern relatively each hexahedron: the (0,0,0) key-point of pattern
+ # will be mapped into <theNode000>-th node of each volume, the (0,0,1)
+ # key-point will be mapped into <theNode001>-th node of each volume.
+ # The (0,0,0) key-point of used pattern corresponds to not split corner.
+ # @param @return TRUE in case of success, FALSE otherwise.
+ def SplitHexaToTetras (self, theObject, theNode000, theNode001):
+ # Pattern: 5.---------.6
+ # /|#* /|
+ # / | #* / |
+ # / | # * / |
+ # / | # /* |
+ # (0,0,1) 4.---------.7 * |
+ # |#* |1 | # *|
+ # | # *.----|---#.2
+ # | #/ * | /
+ # | /# * | /
+ # | / # * | /
+ # |/ #*|/
+ # (0,0,0) 0.---------.3
+ pattern_tetra = "!!! Nb of points: \n 8 \n\
+ !!! Points: \n\
+ 0 0 0 !- 0 \n\
+ 0 1 0 !- 1 \n\
+ 1 1 0 !- 2 \n\
+ 1 0 0 !- 3 \n\
+ 0 0 1 !- 4 \n\
+ 0 1 1 !- 5 \n\
+ 1 1 1 !- 6 \n\
+ 1 0 1 !- 7 \n\
+ !!! Indices of points of 6 tetras: \n\
+ 0 3 4 1 \n\
+ 7 4 3 1 \n\
+ 4 7 5 1 \n\
+ 6 2 5 7 \n\
+ 1 5 2 7 \n\
+ 2 3 1 7 \n"
+
+ pattern = GetPattern()
+ isDone = pattern.LoadFromFile(pattern_tetra)
+ if not isDone:
+ print 'Pattern.LoadFromFile :', pattern.GetErrorCode()
+ return isDone
+
+ pattern.ApplyToHexahedrons(self.mesh, theObject.GetIDs(), theNode000, theNode001)
+ isDone = pattern.MakeMesh(self.mesh, False, False)
+ if not isDone: print 'Pattern.MakeMesh :', pattern.GetErrorCode()
+
+ # split quafrangle faces near triangular facets of volumes
+ self.SplitQuadsNearTriangularFacets()
+
+ return isDone
+
+ ## @brief Split hexahedrons into prisms.
+ #
+ # Use pattern mapping functionality for splitting.
+ # @param theObject object to take list of hexahedrons from; is mesh, submesh or group.
+ # @param theNode000,theNode001 is in range [0,7]; give an orientation of the
+ # pattern relatively each hexahedron: the (0,0,0) key-point of pattern
+ # will be mapped into <theNode000>-th node of each volume, the (0,0,1)
+ # key-point will be mapped into <theNode001>-th node of each volume.
+ # The edge (0,0,0)-(0,0,1) of used pattern connects two not split corners.
+ # @param @return TRUE in case of success, FALSE otherwise.
+ def SplitHexaToPrisms (self, theObject, theNode000, theNode001):
+ # Pattern: 5.---------.6
+ # /|# /|
+ # / | # / |
+ # / | # / |
+ # / | # / |
+ # (0,0,1) 4.---------.7 |
+ # | | | |
+ # | 1.----|----.2
+ # | / * | /
+ # | / * | /
+ # | / * | /
+ # |/ *|/
+ # (0,0,0) 0.---------.3
+ pattern_prism = "!!! Nb of points: \n 8 \n\
+ !!! Points: \n\
+ 0 0 0 !- 0 \n\
+ 0 1 0 !- 1 \n\
+ 1 1 0 !- 2 \n\
+ 1 0 0 !- 3 \n\
+ 0 0 1 !- 4 \n\
+ 0 1 1 !- 5 \n\
+ 1 1 1 !- 6 \n\
+ 1 0 1 !- 7 \n\
+ !!! Indices of points of 2 prisms: \n\
+ 0 1 3 4 5 7 \n\
+ 2 3 1 6 7 5 \n"
+
+ pattern = GetPattern()
+ isDone = pattern.LoadFromFile(pattern_prism)
+ if not isDone:
+ print 'Pattern.LoadFromFile :', pattern.GetErrorCode()
+ return isDone
+
+ pattern.ApplyToHexahedrons(self.mesh, theObject.GetIDs(), theNode000, theNode001)
+ isDone = pattern.MakeMesh(self.mesh, False, False)
+ if not isDone: print 'Pattern.MakeMesh :', pattern.GetErrorCode()
+
+ # split quafrangle faces near triangular facets of volumes
+ self.SplitQuadsNearTriangularFacets()
+
+ return isDone
## Smooth elements
# @param IDsOfElements list if ids of elements to smooth
