-# Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
+# Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
-# version 2.1 of the License.
+# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
import salome
from salome.geom import geomBuilder
-import SMESH
+import SMESH, StdMeshers
## The base class to define meshing algorithms
#
# @code
# meshMethod = "MyAlgorithm"
# @endcode
-# then an instance of @c MyPlugin_Algorithm can be created by the direct invokation of the function
+# then an instance of @c MyPlugin_Algorithm can be created by the direct invocation of the function
# of smesh.Mesh class:
# @code
# my_algo = mesh.MyAlgorithm()
attr = hypo_so_i.FindAttribute("AttributeIOR")[1]
if attr is not None:
anIOR = attr.Value()
+ if not anIOR: continue # prevent exception in orb.string_to_object()
hypo_o_i = salome.orb.string_to_object(anIOR)
if hypo_o_i is not None:
# Check if this is a hypothesis
attr = algo_so_i.FindAttribute("AttributeIOR")[1]
if attr is not None:
anIOR = attr.Value()
+ if not anIOR: continue # prevent exception in orb.string_to_object()
algo_o_i = salome.orb.string_to_object(anIOR)
if algo_o_i is not None:
# Check if this is an algorithm
## Private method.
def Create(self, mesh, geom, hypo, so="libStdMeshersEngine.so"):
if geom is None and mesh.mesh.HasShapeToMesh():
- raise RuntimeError, "Attemp to create " + hypo + " algoritm on None shape"
+ raise RuntimeError("Attempt to create " + hypo + " algorithm on None shape")
algo = self.FindAlgorithm(hypo, mesh.smeshpyD)
if algo is None:
algo = mesh.smeshpyD.CreateHypothesis(hypo, so)
def Assign(self, algo, mesh, geom):
from salome.smesh.smeshBuilder import AssureGeomPublished, TreatHypoStatus, GetName
if geom is None and mesh.mesh.HasShapeToMesh():
- raise RuntimeError, "Attemp to create " + algo + " algoritm on None shape"
+ raise RuntimeError("Attempt to create " + algo + " algorithm on None shape")
self.mesh = mesh
- name = ""
if not geom or geom.IsSame( mesh.geom ):
self.geom = mesh.geom
else:
self.geom = geom
AssureGeomPublished( mesh, geom )
- try:
- name = GetName(geom)
- pass
- except:
- pass
self.subm = mesh.mesh.GetSubMesh(geom, algo.GetName())
self.algo = algo
- status = mesh.mesh.AddHypothesis(self.geom, self.algo)
- TreatHypoStatus( status, algo.GetName(), name, True )
+ status = mesh.AddHypothesis(self.algo, self.geom)
return
def CompareHyp (self, hyp, args):
- print "CompareHyp is not implemented for ", self.__class__.__name__, ":", hyp.GetName()
+ print("CompareHyp is not implemented for ", self.__class__.__name__, ":", hyp.GetName())
return False
def CompareEqualHyp (self, hyp, args):
## Private method
def Hypothesis (self, hyp, args=[], so="libStdMeshersEngine.so",
- UseExisting=0, CompareMethod=""):
+ UseExisting=0, CompareMethod="", toAdd=True):
from salome.smesh.smeshBuilder import TreatHypoStatus, GetName
hypo = None
if UseExisting:
geomName=""
if self.geom:
geomName = GetName(self.geom)
- status = self.mesh.mesh.AddHypothesis(self.geom, hypo)
- TreatHypoStatus( status, GetName(hypo), geomName, 0 )
+ if toAdd:
+ status = self.mesh.mesh.AddHypothesis(self.geom, hypo)
+ TreatHypoStatus( status, GetName(hypo), geomName, 0, self.mesh )
return hypo
## Returns entry of the shape to mesh in the study
## Defines "ViscousLayers" hypothesis to give parameters of layers of prisms to build
# near mesh boundary. This hypothesis can be used by several 3D algorithms:
- # NETGEN 3D, GHS3D, Hexahedron(i,j,k)
+ # NETGEN 3D, MG-Tetra, Hexahedron(i,j,k)
# @param thickness total thickness of layers of prisms
# @param numberOfLayers number of layers of prisms
# @param stretchFactor factor (>1.0) of growth of layer thickness towards inside of mesh
- # @param ignoreFaces list of geometrical faces (or their ids) not to generate layers on
+ # @param faces list of geometrical faces (or their ids).
+ # Viscous layers are either generated on these faces or not, depending on
+ # the value of \a isFacesToIgnore parameter.
+ # @param isFacesToIgnore if \c True, the Viscous layers are not generated on the
+ # faces specified by the previous parameter (\a faces).
+ # @param extrMethod extrusion method defines how position of new nodes are found during
+ # prism construction and how creation of distorted and intersecting prisms is
+ # prevented. Possible values are:
+ # - StdMeshers.SURF_OFFSET_SMOOTH (default) method extrudes nodes along normal
+ # to underlying geometrical surface. Smoothing of internal surface of
+ # element layers can be used to avoid creation of invalid prisms.
+ # - StdMeshers.FACE_OFFSET method extrudes nodes along average normal of
+ # surrounding mesh faces till intersection with a neighbor mesh face
+ # translated along its own normal by the layers thickness. Thickness
+ # of layers can be limited to avoid creation of invalid prisms.
+ # - StdMeshers.NODE_OFFSET method extrudes nodes along average normal of
+ # surrounding mesh faces by the layers thickness. Thickness of
+ # layers can be limited to avoid creation of invalid prisms.
# @ingroup l3_hypos_additi
- def ViscousLayers(self, thickness, numberOfLayers, stretchFactor, ignoreFaces=[]):
+ def ViscousLayers(self, thickness, numberOfLayers, stretchFactor,
+ faces=[], isFacesToIgnore=True, extrMethod=StdMeshers.SURF_OFFSET_SMOOTH ):
if not isinstance(self.algo, SMESH._objref_SMESH_3D_Algo):
- raise TypeError, "ViscousLayers are supported by 3D algorithms only"
+ raise TypeError("ViscousLayers are supported by 3D algorithms only")
if not "ViscousLayers" in self.GetCompatibleHypothesis():
- raise TypeError, "ViscousLayers are not supported by %s"%self.algo.GetName()
- if ignoreFaces and isinstance( ignoreFaces[0], geomBuilder.GEOM._objref_GEOM_Object ):
- ignoreFaces = [ self.mesh.geompyD.GetSubShapeID(self.mesh.geom, f) for f in ignoreFaces ]
+ raise TypeError("ViscousLayers are not supported by %s"%self.algo.GetName())
+ if faces and isinstance( faces, geomBuilder.GEOM._objref_GEOM_Object ):
+ faces = [ faces ]
+ if faces and isinstance( faces[0], geomBuilder.GEOM._objref_GEOM_Object ):
+ faceIDs = []
+ for shape in faces:
+ ff = self.mesh.geompyD.SubShapeAll( shape, self.mesh.geompyD.ShapeType["FACE"] )
+ for f in ff:
+ faceIDs.append( self.mesh.geompyD.GetSubShapeID(self.mesh.geom, f))
+ faces = faceIDs
hyp = self.Hypothesis("ViscousLayers",
- [thickness, numberOfLayers, stretchFactor, ignoreFaces])
- hyp.SetTotalThickness(thickness)
- hyp.SetNumberLayers(numberOfLayers)
- hyp.SetStretchFactor(stretchFactor)
- hyp.SetIgnoreFaces(ignoreFaces)
+ [thickness, numberOfLayers, stretchFactor, faces, isFacesToIgnore],
+ toAdd=False)
+ hyp.SetTotalThickness( thickness )
+ hyp.SetNumberLayers( numberOfLayers )
+ hyp.SetStretchFactor( stretchFactor )
+ hyp.SetFaces( faces, isFacesToIgnore )
+ hyp.SetMethod( extrMethod )
+ self.mesh.AddHypothesis( hyp, self.geom )
return hyp
## Defines "ViscousLayers2D" hypothesis to give parameters of layers of quadrilateral
# elements to build near mesh boundary. This hypothesis can be used by several 2D algorithms:
- # NETGEN 2D, NETGEN 1D-2D, Quadrangle (mapping), MEFISTO, BLSURF
+ # NETGEN 2D, NETGEN 1D-2D, Quadrangle (mapping), MEFISTO, MG-CADSurf
# @param thickness total thickness of layers of quadrilaterals
# @param numberOfLayers number of layers
# @param stretchFactor factor (>1.0) of growth of layer thickness towards inside of mesh
- # @param edges list of geometrical edge (or their ids).
+ # @param edges list of geometrical edges (or their ids).
# Viscous layers are either generated on these edges or not, depending on
- # the values of \a isEdgesToIgnore parameter.
+ # the value of \a isEdgesToIgnore parameter.
# @param isEdgesToIgnore if \c True, the Viscous layers are not generated on the
# edges specified by the previous parameter (\a edges).
# @ingroup l3_hypos_additi
def ViscousLayers2D(self, thickness, numberOfLayers, stretchFactor,
edges=[], isEdgesToIgnore=True ):
if not isinstance(self.algo, SMESH._objref_SMESH_2D_Algo):
- raise TypeError, "ViscousLayers2D are supported by 2D algorithms only"
+ raise TypeError("ViscousLayers2D are supported by 2D algorithms only")
if not "ViscousLayers2D" in self.GetCompatibleHypothesis():
- raise TypeError, "ViscousLayers2D are not supported by %s"%self.algo.GetName()
+ raise TypeError("ViscousLayers2D are not supported by %s"%self.algo.GetName())
+ if edges and not isinstance( edges, list ) and not isinstance( edges, tuple ):
+ edges = [edges]
if edges and isinstance( edges[0], geomBuilder.GEOM._objref_GEOM_Object ):
- edges = [ self.mesh.geompyD.GetSubShapeID(self.mesh.geom, f) for f in edges ]
+ edgeIDs = []
+ for shape in edges:
+ ee = self.mesh.geompyD.SubShapeAll( shape, self.mesh.geompyD.ShapeType["EDGE"])
+ for e in ee:
+ edgeIDs.append( self.mesh.geompyD.GetSubShapeID( self.mesh.geom, e ))
+ edges = edgeIDs
hyp = self.Hypothesis("ViscousLayers2D",
- [thickness, numberOfLayers, stretchFactor,
- edges, isEdgesToIgnore])
+ [thickness, numberOfLayers, stretchFactor, edges, isEdgesToIgnore],
+ toAdd=False)
hyp.SetTotalThickness(thickness)
hyp.SetNumberLayers(numberOfLayers)
hyp.SetStretchFactor(stretchFactor)
hyp.SetEdges(edges, isEdgesToIgnore)
+ self.mesh.AddHypothesis( hyp, self.geom )
return hyp
- ## Transform a list of ether edges or tuples (edge, 1st_vertex_of_edge)
+ ## Transform a list of either edges or tuples (edge, 1st_vertex_of_edge)
# into a list acceptable to SetReversedEdges() of some 1D hypotheses
# @ingroup l3_hypos_1dhyps
def ReversedEdgeIndices(self, reverseList):
if isinstance( i, int ):
s = geompy.SubShapes(self.mesh.geom, [i])[0]
if s.GetShapeType() != geomBuilder.GEOM.EDGE:
- raise TypeError, "Not EDGE index given"
+ raise TypeError("Not EDGE index given")
resList.append( i )
elif isinstance( i, geomBuilder.GEOM._objref_GEOM_Object ):
if i.GetShapeType() != geomBuilder.GEOM.EDGE:
- raise TypeError, "Not an EDGE given"
+ raise TypeError("Not an EDGE given")
resList.append( geompy.GetSubShapeID(self.mesh.geom, i ))
elif len( i ) > 1:
e = i[0]
v = i[1]
if not isinstance( e, geomBuilder.GEOM._objref_GEOM_Object ) or \
not isinstance( v, geomBuilder.GEOM._objref_GEOM_Object ):
- raise TypeError, "A list item must be a tuple (edge, 1st_vertex_of_edge)"
+ raise TypeError("A list item must be a tuple (edge, 1st_vertex_of_edge)")
if v.GetShapeType() == geomBuilder.GEOM.EDGE and \
e.GetShapeType() == geomBuilder.GEOM.VERTEX:
v,e = e,v
if e.GetShapeType() != geomBuilder.GEOM.EDGE or \
v.GetShapeType() != geomBuilder.GEOM.VERTEX:
- raise TypeError, "A list item must be a tuple (edge, 1st_vertex_of_edge)"
+ raise TypeError("A list item must be a tuple (edge, 1st_vertex_of_edge)")
vFirst = FirstVertexOnCurve( self.mesh, e )
tol = geompy.Tolerance( vFirst )[-1]
if geompy.MinDistance( v, vFirst ) > 1.5*tol:
resList.append( geompy.GetSubShapeID(self.mesh.geom, e ))
else:
- raise TypeError, "Item must be either an edge or tuple (edge, 1st_vertex_of_edge)"
+ raise TypeError("Item must be either an edge or tuple (edge, 1st_vertex_of_edge)")
return resList
