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51aed73084
Made the BRepAdaptor_Curve a member of BRepMesh_EdgeParameterProvider to ensure that it is created before and destroyed after the Extrema_LocateExtPC that uses it.
90 lines
3.0 KiB
C++
90 lines
3.0 KiB
C++
// Created on: 2014-08-13
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// Created by: Oleg AGASHIN
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// Copyright (c) 2011-2014 OPEN CASCADE SAS
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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_EdgeParameterProvider.hxx>
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#include <gp_Pnt.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Face.hxx>
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#include <TColStd_HArray1OfReal.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepAdaptor_Curve.hxx>
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#include <Precision.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_EdgeParameterProvider::BRepMesh_EdgeParameterProvider(
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const TopoDS_Edge& theEdge,
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const TopoDS_Face& theFace,
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const Handle(TColStd_HArray1OfReal)& theParameters)
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: myParameters(theParameters),
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myIsSameParam(BRep_Tool::SameParameter(theEdge)),
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myScale(1.),
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myCurveAdaptor(theEdge, theFace)
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{
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if (myIsSameParam)
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return;
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// Extract actual parametric values
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Standard_Real aLastParam;
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BRep_Tool::Range(theEdge, theFace, myFirstParam, aLastParam);
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myFoundParam = myCurParam = myFirstParam;
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// Extract parameters stored in polygon
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myOldFirstParam =
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myParameters->Value(myParameters->Lower());
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const Standard_Real aOldLastParam =
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myParameters->Value(myParameters->Upper());
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// Calculate scale factor between actual and stored parameters
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if ((myOldFirstParam != myFirstParam || aOldLastParam != aLastParam) &&
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myOldFirstParam != aOldLastParam)
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{
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myScale = (aLastParam - myFirstParam) /
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(aOldLastParam - myOldFirstParam);
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}
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myProjector.Initialize(myCurveAdaptor, myCurveAdaptor.FirstParameter(),
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myCurveAdaptor.LastParameter(), Precision::PConfusion());
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}
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//=======================================================================
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//function : Parameter
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//purpose :
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//=======================================================================
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Standard_Real BRepMesh_EdgeParameterProvider::Parameter(
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const Standard_Integer theIndex,
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const gp_Pnt& thePoint3d)
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{
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if (myIsSameParam)
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return myParameters->Value(theIndex);
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// Use scaled
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Standard_Real aPrevParam = myCurParam;
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myCurParam = myFirstParam + myScale *
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(myParameters->Value(theIndex) - myOldFirstParam);
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myFoundParam += (myCurParam - aPrevParam);
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myProjector.Perform(thePoint3d, myFoundParam);
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if (myProjector.IsDone())
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myFoundParam = myProjector.Point().Parameter();
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return myFoundParam;
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}
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