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c894a5fdfc
The algorithm BRepExtrema_DistShapeShape has been protected against exceptions when non-geometric shape data is given on input, like a face containing triangulation only or an edge containing polygon only. Such faces/edges are ignored by the algorithm. BRepGProps::VolumeProperties() now ignores faces without geometric surface to avoid access violation.
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
// Created on: 1993-12-15
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// Created by: Christophe MARION
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// Copyright (c) 1993-1999 Matra Datavision
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// Copyright (c) 1999-2014 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 <BRepExtrema_ExtPC.hxx>
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#include <BRep_Tool.hxx>
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//#include <StdFail_NotDone.hxx>
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//#include <Standard_Failure.hxx>
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#include <BRepAdaptor_Curve.hxx>
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#include <BRepAdaptor_HCurve.hxx>
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//=======================================================================
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//function : BRepExtrema_ExtPC
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//purpose :
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//=======================================================================
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BRepExtrema_ExtPC::BRepExtrema_ExtPC(const TopoDS_Vertex& V, const TopoDS_Edge& E)
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{
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Initialize(E);
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Perform(V);
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}
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//=======================================================================
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//function : Initialize
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//purpose :
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//=======================================================================
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void BRepExtrema_ExtPC::Initialize(const TopoDS_Edge& E)
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{
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if (!BRep_Tool::IsGeometric(E))
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return; // protect against non-geometric type (e.g. polygon)
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Standard_Real U1, U2;
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BRepAdaptor_Curve Curv(E);
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myHC = new BRepAdaptor_HCurve(Curv);
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Standard_Real Tol = Min(BRep_Tool::Tolerance(E), Precision::Confusion());
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Tol = Max(Curv.Resolution(Tol), Precision::PConfusion());
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BRep_Tool::Range(E,U1,U2);
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myExtPC.Initialize(myHC->Curve(),U1,U2,Tol);
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}
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//=======================================================================
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//function : Perform
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//purpose :
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//=======================================================================
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void BRepExtrema_ExtPC::Perform(const TopoDS_Vertex& V)
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{
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if (!myHC.IsNull())
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{
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gp_Pnt P = BRep_Tool::Pnt(V);
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myExtPC.Perform(P);
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}
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}
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