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dc57476a0e
Split seam edge of a cone according to the specified parameters. Seam edge functor is called before check of triangulation consistency in order to keep face status consistent. The cause is that split seam edge can set Outdated flag when Reused is set by another functor without reset which can lead to refusement of such face by triangulation procedure. Fix compilation error on VS2008
81 lines
3.4 KiB
C++
81 lines
3.4 KiB
C++
// Created on: 2016-07-07
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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_ConeRangeSplitter.hxx>
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#include <GCPnts_TangentialDeflection.hxx>
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//=======================================================================
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// Function: GetSplitSteps
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// Purpose :
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//=======================================================================
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std::pair<Standard_Real, Standard_Real> BRepMesh_ConeRangeSplitter::GetSplitSteps(
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const IMeshTools_Parameters& theParameters,
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std::pair<Standard_Integer, Standard_Integer>& theStepsNb) const
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{
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const std::pair<Standard_Real, Standard_Real>& aRangeU = GetRangeU();
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const std::pair<Standard_Real, Standard_Real>& aRangeV = GetRangeV();
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gp_Cone aCone = GetDFace()->GetSurface()->Cone();
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Standard_Real aRefR = aCone.RefRadius();
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Standard_Real aSAng = aCone.SemiAngle();
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Standard_Real aRadius = Max(Abs(aRefR + aRangeV.first * Sin(aSAng)),
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Abs(aRefR + aRangeV.second * Sin(aSAng)));
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Standard_Real Dv, Du = GCPnts_TangentialDeflection::ArcAngularStep(
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aRadius, GetDFace()->GetDeflection(),
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theParameters.Angle, theParameters.MinSize);
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const Standard_Real aDiffU = aRangeU.second - aRangeU.first;
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const Standard_Real aDiffV = aRangeV.second - aRangeV.first;
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Standard_Integer nbU = (Standard_Integer) (aDiffU / Du);
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Standard_Integer nbV = (Standard_Integer) (nbU * (aDiffV) / (aDiffU * aRadius));
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Du = aDiffU / (nbU + 1);
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Dv = aDiffV / (nbV + 1);
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theStepsNb.first = nbU;
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theStepsNb.second = nbV;
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return std::make_pair (Du, Dv);
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}
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//=======================================================================
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// Function: GenerateSurfaceNodes
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// Purpose :
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//=======================================================================
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Handle(IMeshData::ListOfPnt2d) BRepMesh_ConeRangeSplitter::GenerateSurfaceNodes(
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const IMeshTools_Parameters& theParameters) const
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{
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const std::pair<Standard_Real, Standard_Real>& aRangeU = GetRangeU();
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const std::pair<Standard_Real, Standard_Real>& aRangeV = GetRangeV();
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std::pair<Standard_Integer, Standard_Integer> aStepsNb;
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std::pair<Standard_Real, Standard_Real> aSteps = GetSplitSteps (theParameters, aStepsNb);
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const Handle(NCollection_IncAllocator) aTmpAlloc =
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new NCollection_IncAllocator(IMeshData::MEMORY_BLOCK_SIZE_HUGE);
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Handle(IMeshData::ListOfPnt2d) aNodes = new IMeshData::ListOfPnt2d(aTmpAlloc);
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const Standard_Real aPasMaxV = aRangeV.second - aSteps.second*0.5;
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const Standard_Real aPasMaxU = aRangeU.second - aSteps.first *0.5;
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for (Standard_Real aPasV = aRangeV.first + aSteps.second; aPasV < aPasMaxV; aPasV += aSteps.second)
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{
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for (Standard_Real aPasU = aRangeU.first + aSteps.first; aPasU < aPasMaxU; aPasU += aSteps.first)
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{
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aNodes->Append(gp_Pnt2d(aPasU, aPasV));
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}
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}
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return aNodes;
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}
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