313 lines
11 KiB
Python
313 lines
11 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2016 Bernd Hahnebach <bernd@bimstatik.org> *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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__title__ = "FreeCAD FEM mesh gmsh document object"
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__author__ = "Bernd Hahnebach"
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__url__ = "https://www.freecad.org"
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## @package mesh_gmsh
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# \ingroup FEM
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# \brief mesh gmsh object
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from FreeCAD import Base
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from . import base_fempythonobject
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_PropHelper = base_fempythonobject._PropHelper
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class MeshGmsh(base_fempythonobject.BaseFemPythonObject):
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"""
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A Fem::FemMeshObject python type, add Gmsh specific properties
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"""
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Type = "Fem::FemMeshGmsh"
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def __init__(self, obj):
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super().__init__(obj)
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for prop in self._get_properties():
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prop.add_to_object(obj)
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def _get_properties(self):
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prop = []
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prop.append(
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_PropHelper(
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type="App::PropertyLinkList",
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name="MeshBoundaryLayerList",
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group="Base",
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doc="Mesh boundaries need inflation layers",
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value=[],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyLinkList",
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name="MeshRegionList",
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group="Base",
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doc="Mesh refinments of the mesh",
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value=[],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyLinkList",
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name="MeshGroupList",
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group="Base",
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doc="Mesh groups of the mesh",
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value=[],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyLength",
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name="CharacteristicLengthMax",
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group="Mesh Parameters",
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doc="Max mesh element size (0.0 means infinity)",
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value=0.0, # will be 1e+22
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyLength",
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name="CharacteristicLengthMin",
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group="Mesh Parameters",
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doc="Min mesh element size",
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value=0.0,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyEnumeration",
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name="ElementDimension",
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group="Mesh Parameters",
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doc="Dimension of mesh elements ('From Shape': according ShapeType of part to mesh)",
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value=["From Shape", "1D", "2D", "3D"],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyEnumeration",
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name="ElementOrder",
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group="Mesh Parameters",
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doc="Order of mesh elements",
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value=["1st", "2nd"],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyBool",
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name="OptimizeStd",
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group="Mesh Parameters",
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doc="Optimize tetrahedral elements",
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value=True,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyBool",
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name="OptimizeNetgen",
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group="Mesh Parameters",
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doc="Optimize tetra elements by use of Netgen",
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value=False,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyEnumeration",
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name="HighOrderOptimize",
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group="Mesh Parameters",
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doc="Optimization of high order meshes",
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value=[
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"None",
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"Optimization",
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"Elastic+Optimization",
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"Elastic",
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"Fast curving",
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],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyBool",
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name="RecombineAll",
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group="Mesh Parameters",
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doc="Apply recombination algorithm to all surfaces",
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value=False,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyBool",
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name="Recombine3DAll",
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group="Mesh Parameters",
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doc="Apply recombination algorithm to all volumes",
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value=False,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyEnumeration",
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name="RecombinationAlgorithm",
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group="Mesh Parameters",
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doc="Recombination algorithm",
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value=[
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"Simple",
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"Blossom",
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"Simple full-quad",
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"Blossom full-quad",
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],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyBool",
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name="CoherenceMesh",
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group="Mesh Parameters",
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doc="Removes all duplicate mesh vertices",
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value=True,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyFloat",
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name="GeometryTolerance",
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group="Mesh Parameters",
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doc="Geometrical Tolerance (0.0 means GMSH std = 1e-08)",
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value=1e-06,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyBool",
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name="SecondOrderLinear",
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group="Mesh Parameters",
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doc="Second order nodes are created by linear interpolation",
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value=False,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyIntegerConstraint",
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name="MeshSizeFromCurvature",
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group="Mesh Parameters",
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doc="Number of elements per 2*pi radians, 0 to deactivate",
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value=(12, 0, 10000, 1),
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyEnumeration",
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name="Algorithm2D",
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group="Mesh Parameters",
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doc="Mesh algorithm 2D",
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value=[
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"Automatic",
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"MeshAdapt",
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"Delaunay",
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"Frontal",
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"BAMG",
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"DelQuad",
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"Packing Parallelograms",
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"Quasi-structured Quad",
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],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyEnumeration",
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name="Algorithm3D",
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group="Mesh Parameters",
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doc="Mesh algorithm 3D",
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value=[
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"Automatic",
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"Delaunay",
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"New Delaunay",
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"Frontal",
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"MMG3D",
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"R-tree",
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"HXT",
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],
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyBool",
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name="GroupsOfNodes",
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group="Mesh Parameters",
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doc="For each group create not only the elements but the nodes too",
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value=False,
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)
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)
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prop.append(
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_PropHelper(
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type="App::PropertyEnumeration",
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name="SubdivisionAlgorithm",
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group="Mesh Parameters",
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doc="Mesh subdivision algorithm",
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value=["None", "All Quadrangles", "All Hexahedra", "Barycentric"],
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)
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)
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return prop
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def onDocumentRestored(self, obj):
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# update old project with new properties
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for prop in self._get_properties():
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try:
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obj.getPropertyByName(prop.name)
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except Base.PropertyError:
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prop.add_to_object(obj)
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if prop.name == "Algorithm2D":
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# refresh the list of known 2D algorithms for old projects
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obj.Algorithm2D = prop.value
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elif prop.name == "Algorithm3D":
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# refresh the list of known 3D algorithms for old projects
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obj.Algorithm3D = prop.value
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elif prop.name == "HighOrderOptimize":
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# HighOrderOptimize was once App::PropertyBool, so check this
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prop.handle_change_type(
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obj, "App::PropertyBool", lambda x: "Optimization" if x else "None"
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)
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# Migrate group of properties for old projects
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if obj.getGroupOfProperty(prop.name) == "FEM Gmsh Mesh Params":
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obj.setGroupOfProperty(prop.name, "Mesh Parameters")
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# migrate old Part property to Shape property
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try:
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value_part = obj.getPropertyByName("Part")
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obj.setPropertyStatus("Part", "-LockDynamic")
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obj.removeProperty("Part")
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# old object is Fem::FemMeshObjectPython (does not have Shape property with global scope)
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prop = _PropHelper(
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type="App::PropertyLinkGlobal",
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name="Shape",
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group="FEM Mesh",
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doc="Geometry object, the mesh is made from. The geometry object has to have a Shape.",
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value=value_part,
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)
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prop.add_to_object(obj)
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except Base.PropertyError:
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pass
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