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c4ea4ca3d1
0032422: Mesh - Weird rendering 0029641: Mesher produce 'bad' result for extruded spline with given deviation coefficient Added method BRepMesh_NURBSRangeSplitter::getUndefinedInterval() intended to compute checkpoint parameters for those NURBS surfaces which have no intervals at all. In this case number of poles is used to produce artificial regular grid which can be refined further. Add at least one midpoint for surfaces with one interval and only two poles. Added BRepMesh_ExtrusionRangeSplitter and BRepMesh_UndefinedRangeSplitter derivatives from BRepMesh_NURBSRangeSplitter intended to handle special cases of extrusion surfaces and general surfaces with undefined parameters.
118 lines
3.7 KiB
C++
118 lines
3.7 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_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_DelaunayDeflectionControlMeshAlgo.hxx>
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#include <BRepMesh_BoundaryParamsRangeSplitter.hxx>
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#include <BRepMesh_ExtrusionRangeSplitter.hxx>
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#include <BRepMesh_UndefinedRangeSplitter.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(BRepMesh_MeshAlgoFactory, IMeshTools_MeshAlgoFactory)
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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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case GeomAbs_SurfaceOfExtrusion:
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return new DeflectionControlMeshAlgo<BRepMesh_ExtrusionRangeSplitter>::Type;
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break;
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case GeomAbs_BezierSurface:
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case GeomAbs_BSplineSurface:
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return new DeflectionControlMeshAlgo<BRepMesh_NURBSRangeSplitter>::Type;
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break;
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case GeomAbs_OffsetSurface:
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case GeomAbs_OtherSurface:
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default:
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return new DeflectionControlMeshAlgo<BRepMesh_UndefinedRangeSplitter>::Type;
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}
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}
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