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74 lines
2.7 KiB
C++
74 lines
2.7 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_EdgeTessellationExtractor.hxx>
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#include <BRepMesh_ShapeTool.hxx>
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#include <gp_Pnt.hxx>
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#include <BRep_Tool.hxx>
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#include <IMeshData_Face.hxx>
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#include <IMeshData_Edge.hxx>
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//=======================================================================
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//function : Constructor
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//purpose :
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//=======================================================================
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BRepMesh_EdgeTessellationExtractor::BRepMesh_EdgeTessellationExtractor (
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const IMeshData::IEdgeHandle& theEdge,
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const IMeshData::IFaceHandle& theFace)
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{
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Handle (Poly_Triangulation) aTriangulation =
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BRep_Tool::Triangulation (theFace->GetFace(), myLoc);
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Handle (Poly_PolygonOnTriangulation) aPolygon =
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BRep_Tool::PolygonOnTriangulation (theEdge->GetEdge(), aTriangulation, myLoc);
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myNodes = &aTriangulation->Nodes ();
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myIndices = &aPolygon->Nodes ();
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myProvider.Init (theEdge, TopAbs_FORWARD, theFace, aPolygon->Parameters ());
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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_EdgeTessellationExtractor::~BRepMesh_EdgeTessellationExtractor ()
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{
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}
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//=======================================================================
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//function : NbPoints
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//purpose :
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//=======================================================================
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Standard_Integer BRepMesh_EdgeTessellationExtractor::PointsNb () const
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{
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return myIndices->Size ();
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}
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//=======================================================================
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//function : Value
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//purpose :
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//=======================================================================
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Standard_Boolean BRepMesh_EdgeTessellationExtractor::Value (
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const Standard_Integer theIndex,
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gp_Pnt& thePoint,
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Standard_Real& theParameter) const
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{
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const gp_Pnt& theRefPnt = (*myNodes) ((*myIndices) (theIndex));
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thePoint = BRepMesh_ShapeTool::UseLocation (theRefPnt, myLoc);
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theParameter = myProvider.Parameter (theIndex, thePoint);
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return Standard_True;
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}
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