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New classes BRepMesh_ConstrainedBaseMeshAlgo, BRepMesh_CustomBaseMeshAlgo and BRepMesh_CustomDelaunayBaseMeshAlgo are added. These classes allow to add any custom triangulation algorithm to BRepMesh and perform post-processing and optimization of base mesh generated by those algorithms. BRepMesh_Delaun: added possibility to process constraints when base mesh is generated by different algorithm. BRepMesh_DelaunayNodeInsertionMeshAlgo: added PreProcessSurfaceNodes flag controlling addition of surface nodes (either before creation of base mesh or after) to gain maximum performance from triangulation algorithms. Minor changes: Use simple algorithm for cylinders when internal vertices mode is switched off to speed up computations. BRepMesh_IncrementalMesh: added Perform method allowing to execute algorithm using manually created Context.
106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
// Created on: 2016-04-19
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// Copyright (c) 2016 OPEN CASCADE SAS
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// Created by: Oleg AGASHIN
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <BRepMesh_MeshAlgoFactory.hxx>
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#include <BRepMesh_DefaultRangeSplitter.hxx>
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#include <BRepMesh_NURBSRangeSplitter.hxx>
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#include <BRepMesh_SphereRangeSplitter.hxx>
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#include <BRepMesh_CylinderRangeSplitter.hxx>
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#include <BRepMesh_ConeRangeSplitter.hxx>
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#include <BRepMesh_TorusRangeSplitter.hxx>
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#include <BRepMesh_DelaunayBaseMeshAlgo.hxx>
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#include <BRepMesh_DelaunayNodeInsertionMeshAlgo.hxx>
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#include <BRepMesh_DelaunayDeflectionControlMeshAlgo.hxx>
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#include <BRepMesh_BoundaryParamsRangeSplitter.hxx>
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namespace
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{
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struct BaseMeshAlgo
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{
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typedef BRepMesh_DelaunayBaseMeshAlgo Type;
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};
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template<class RangeSplitter>
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struct NodeInsertionMeshAlgo
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{
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typedef BRepMesh_DelaunayNodeInsertionMeshAlgo<RangeSplitter, BRepMesh_DelaunayBaseMeshAlgo> Type;
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};
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template<class RangeSplitter>
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struct DeflectionControlMeshAlgo
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{
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typedef BRepMesh_DelaunayDeflectionControlMeshAlgo<RangeSplitter, BRepMesh_DelaunayBaseMeshAlgo> Type;
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};
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}
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//=======================================================================
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// Function: Constructor
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// Purpose :
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//=======================================================================
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BRepMesh_MeshAlgoFactory::BRepMesh_MeshAlgoFactory()
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{
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}
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//=======================================================================
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// Function: Destructor
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// Purpose :
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//=======================================================================
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BRepMesh_MeshAlgoFactory::~BRepMesh_MeshAlgoFactory()
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{
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}
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//=======================================================================
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// Function: GetAlgo
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// Purpose :
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//=======================================================================
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Handle(IMeshTools_MeshAlgo) BRepMesh_MeshAlgoFactory::GetAlgo(
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const GeomAbs_SurfaceType theSurfaceType,
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const IMeshTools_Parameters& theParameters) const
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{
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switch (theSurfaceType)
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{
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case GeomAbs_Plane:
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return theParameters.InternalVerticesMode ?
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new NodeInsertionMeshAlgo<BRepMesh_DefaultRangeSplitter>::Type :
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new BaseMeshAlgo::Type;
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break;
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case GeomAbs_Sphere:
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return new NodeInsertionMeshAlgo<BRepMesh_SphereRangeSplitter>::Type;
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break;
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case GeomAbs_Cylinder:
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return theParameters.InternalVerticesMode ?
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new NodeInsertionMeshAlgo<BRepMesh_CylinderRangeSplitter>::Type :
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new BaseMeshAlgo::Type;
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break;
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case GeomAbs_Cone:
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return new NodeInsertionMeshAlgo<BRepMesh_ConeRangeSplitter>::Type;
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break;
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case GeomAbs_Torus:
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return new NodeInsertionMeshAlgo<BRepMesh_TorusRangeSplitter>::Type;
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break;
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case GeomAbs_SurfaceOfRevolution:
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return new DeflectionControlMeshAlgo<BRepMesh_BoundaryParamsRangeSplitter>::Type;
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break;
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default:
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return new DeflectionControlMeshAlgo<BRepMesh_NURBSRangeSplitter>::Type;
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}
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}
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