-# Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
+# Copyright (C) 2007-2021 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
Algorithm type: Polygon Per Face 2D algorithm, see :class:`~StdMeshersBuilder.StdMeshersBuilder_PolygonPerFace`
"""
+POLYHEDRON = "PolyhedronPerSolid_3D"
+"""
+Algorithm type: Polyhedron Per Solid 3D algorithm, see :class:`~StdMeshersBuilder.StdMeshersBuilder_PolyhedronPerSolid`
+"""
+
# import items of enums
for e in StdMeshers.QuadType._items: exec('%s = StdMeshers.%s'%(e,e))
for e in StdMeshers.VLExtrusionMethod._items: exec('%s = StdMeshers.%s'%(e,e))
hyp.SetLength(length)
if not UseExisting:
# set preestimated length
+ import SMESH
gen = self.mesh.smeshpyD
initHyp = gen.GetHypothesisParameterValues("MaxLength", "libStdMeshersEngine.so",
self.mesh.GetMesh(), self.mesh.GetShape(),
- False) # <- byMesh
+ SMESH.HypInitParams( 1, 1.0, False ))
preHyp = initHyp._narrow(StdMeshers.StdMeshers_MaxLength)
if preHyp:
hyp.SetPreestimatedLength( preHyp.GetPreestimatedLength() )
hyp.SetFineness( fineness )
return hyp
- def LengthNearVertex(self, length, vertex=0, UseExisting=0):
+ def LengthNearVertex(self, length, vertex=-1, UseExisting=0):
"""
Defines "SegmentLengthAroundVertex" hypothesis
pass
def QuadrangleParameters(self, quadType=StdMeshers.QUAD_STANDARD, triangleVertex=0,
- enfVertices=[],enfPoints=[],UseExisting=0):
+ enfVertices=[],enfPoints=[],corners=[],UseExisting=0):
"""
Defines "QuadrangleParameters" hypothesis
quadType defines the algorithm of transition between differently descretized
or triples of values ([[x1,y1,z1], [x2,y2,z2], ...]).
In the case if the defined QuadrangleParameters() refer to a sole face,
all given points must lie on this face, else the mesher fails.
+ corners: list of vertices that should be used as quadrangle corners.
+ The parameter can be useful for faces with more than four vertices,
+ since in some cases Quadrangle Mapping algorithm chooses corner vertices
+ differently than it is desired.
+ A hypothesis can be global and define corners for all CAD faces that
+ require it, but be sure that each specified vertex is a corner in all
+ faces the hypothesis will be applied to.
UseExisting: if *True* - searches for the existing hypothesis created with
the same parameters, else (default) - Create a new one
"""
if isinstance( enfVertices, int ) and not enfPoints and not UseExisting:
# a call of old syntax, before inserting enfVertices and enfPoints before UseExisting
UseExisting, enfVertices = enfVertices, []
+
pStructs, xyz = [], []
for p in enfPoints:
if isinstance( p, SMESH.PointStruct ):
self.params = self.Hypothesis("QuadrangleParams", [quadType,vertexID,entries,xyz],
UseExisting = UseExisting, CompareMethod=compFun)
pass
+
+ if corners and isinstance( corners[0], GEOM._objref_GEOM_Object ):
+ corners = [ self.mesh.geompyD.GetSubShapeID( self.mesh.geom, v ) for v in corners ]
+
if self.params.GetQuadType() != quadType:
self.params.SetQuadType(quadType)
if vertexID > 0:
for v in enfVertices:
AssureGeomPublished( self.mesh, v )
self.params.SetEnforcedNodes( enfVertices, pStructs )
+ self.params.SetCorners( corners )
return self.params
def QuadranglePreference(self, reversed=False, UseExisting=0):
"""
Mesh_Algorithm.__init__(self)
self.Create(mesh, geom, Hexa)
+ self.renumHypothesis = 0
pass
+ def Renumber(self, blockCSList=[] ):
+ if isinstance( blockCSList, StdMeshers.BlockCS ):
+ blockCSList = [blockCSList]
+ if not self.renumHypothesis:
+ self.renumHypothesis = self.Hypothesis("BlockRenumber", blockCSList, UseExisting=0)
+ self.renumHypothesis.SetBlocksOrientation( blockCSList )
+ return self.renumHypothesis
+
pass # end of StdMeshersBuilder_Hexahedron class
class StdMeshersBuilder_Projection1D(Mesh_Algorithm):
pass
+class StdMeshersBuilder_PolyhedronPerSolid(Mesh_Algorithm):
+ """ Defines a Polyhedron Per Solid 3D algorithm.
+ It is created by calling smeshBuilder.Mesh.Polyhedron(geom=0)
+ """
+
+ meshMethod = "Polyhedron"
+ """
+ name of the dynamic method in smeshBuilder.Mesh class
+ """
+ algoType = POLYHEDRON
+ """
+ type of algorithm used with helper function in smeshBuilder.Mesh class
+ """
+ isDefault = True
+ """
+ flag pointing whether this algorithm should be used by default in dynamic method
+ of smeshBuilder.Mesh class
+ """
+ docHelper = "Create polyhedron 3D algorithm for solids"
+ """
+ doc string of the method
+ """
+
+ def __init__(self, mesh, geom=0):
+ """
+ Private constructor.
+
+ Parameters:
+ mesh: parent mesh object algorithm is assigned to
+ geom: geometry (shape/sub-shape) algorithm is assigned to;
+ if it is :code:`0` (default), the algorithm is assigned to the main shape
+ """
+ Mesh_Algorithm.__init__(self)
+ self.Create(mesh, geom, self.algoType)
+ pass
+
+ pass
+
class StdMeshersBuilder_UseExistingElements_1D(Mesh_Algorithm):
""" Defines a Use Existing Elements 1D algorithm.
points dividing the whole shape into ranges where the functions apply; points
coordinates should vary within (0.0, 1.0) range. Parameter *t* of the spacing
function f(t) varies from 0.0 to 1.0 within a shape range.
+ Note:
+ The actual grid spacing can slightly differ from the defined one. This is done for the
+ best fitting of polyhedrons and for a better mesh quality on the interval boundaries.
+ For example, if a constant **Spacing** is defined along an axis, the actual grid will
+ fill the shape's dimension L along this axis with round number of equal cells:
+ Spacing_actual = L / round( L / Spacing_defined ).
Examples:
"10.5" - defines a grid with a constant spacing
