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License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
178 lines
5.4 KiB
C++
178 lines
5.4 KiB
C++
// Copyright (c) 1995-1999 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 <BRepBndLib.ixx>
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#include <TopExp_Explorer.hxx>
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#include <BRepAdaptor_Surface.hxx>
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#include <BRepAdaptor_Curve.hxx>
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#include <BRep_Tool.hxx>
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#include <TopoDS.hxx>
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#include <BndLib_Add3dCurve.hxx>
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#include <BndLib_AddSurface.hxx>
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#include <Geom_Surface.hxx>
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#include <TopLoc_Location.hxx>
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#include <Poly_Triangulation.hxx>
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#include <Poly_PolygonOnTriangulation.hxx>
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#include <Poly_Polygon3D.hxx>
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#include <BRep_Polygon3D.hxx>
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#include <TColStd_HArray1OfInteger.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include <TColgp_Array1OfPnt.hxx>
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#include <Geom_Curve.hxx>
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#include <GeomAdaptor_Curve.hxx>
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#include <BndLib_Add3dCurve.hxx>
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//=======================================================================
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//function : Add
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//purpose : Add a shape bounding to a box
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//=======================================================================
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void BRepBndLib::Add(const TopoDS_Shape& S, Bnd_Box& B, Standard_Boolean useTriangulation)
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{
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TopExp_Explorer ex;
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// Add the faces
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BRepAdaptor_Surface BS;
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Handle(Geom_Surface) GS;
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Handle(Poly_Triangulation) T;
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TopLoc_Location l;
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Standard_Integer i, nbNodes;
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BRepAdaptor_Curve BC;
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for (ex.Init(S,TopAbs_FACE); ex.More(); ex.Next()) {
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const TopoDS_Face& F = TopoDS::Face(ex.Current());
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T = BRep_Tool::Triangulation(F, l);
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if (useTriangulation && !T.IsNull())
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{
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nbNodes = T->NbNodes();
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const TColgp_Array1OfPnt& Nodes = T->Nodes();
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for (i = 1; i <= nbNodes; i++) {
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if (l.IsIdentity()) B.Add(Nodes(i));
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else B.Add(Nodes(i).Transformed(l));
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}
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// B.Enlarge(T->Deflection());
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B.Enlarge(T->Deflection() + BRep_Tool::Tolerance(F));
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} else
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{
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GS = BRep_Tool::Surface(F, l);
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if (!GS.IsNull()) {
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BS.Initialize(F, Standard_False);
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if (BS.GetType() != GeomAbs_Plane) {
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BS.Initialize(F);
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BndLib_AddSurface::Add(BS, BRep_Tool::Tolerance(F), B);
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}
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else {
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// on travaille directement sur les courbes 3d.
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TopExp_Explorer ex2(F, TopAbs_EDGE);
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if (!ex2.More()) {
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BS.Initialize(F);
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BndLib_AddSurface::Add(BS, BRep_Tool::Tolerance(F), B);
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}
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else {
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for (;ex2.More();ex2.Next()) {
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BC.Initialize(TopoDS::Edge(ex2.Current()));
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BndLib_Add3dCurve::Add(BC, BRep_Tool::Tolerance(F), B);
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}
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B.Enlarge(BRep_Tool::Tolerance(F));
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}
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}
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}
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}
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}
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// Add the edges not in faces
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Handle(TColStd_HArray1OfInteger) HIndices;
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Handle(Poly_PolygonOnTriangulation) Poly;
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for (ex.Init(S,TopAbs_EDGE,TopAbs_FACE); ex.More(); ex.Next())
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{
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const TopoDS_Edge& E = TopoDS::Edge(ex.Current());
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Handle(Poly_Polygon3D) P3d = BRep_Tool::Polygon3D(E, l);
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if (!P3d.IsNull())
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{
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const TColgp_Array1OfPnt& Nodes = P3d->Nodes();
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nbNodes = P3d->NbNodes();
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for (i = 1; i <= nbNodes; i++)
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{
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if (l.IsIdentity()) B.Add(Nodes(i));
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else B.Add(Nodes(i).Transformed(l));
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}
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// B.Enlarge(P3d->Deflection());
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B.Enlarge(P3d->Deflection() + BRep_Tool::Tolerance(E));
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}
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else
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{
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BRep_Tool::PolygonOnTriangulation(E, Poly, T, l);
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if (useTriangulation && !Poly.IsNull())
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{
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const TColStd_Array1OfInteger& Indices = Poly->Nodes();
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const TColgp_Array1OfPnt& Nodes = T->Nodes();
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nbNodes = Indices.Length();
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for (i = 1; i <= nbNodes; i++)
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{
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if (l.IsIdentity()) B.Add(Nodes(Indices(i)));
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else B.Add(Nodes(Indices(i)).Transformed(l));
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}
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// B.Enlarge(T->Deflection());
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B.Enlarge(Poly->Deflection() + BRep_Tool::Tolerance(E));
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}
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else {
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if (BRep_Tool::IsGeometric(E))
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{
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BC.Initialize(E);
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BndLib_Add3dCurve::Add(BC, BRep_Tool::Tolerance(E), B);
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}
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}
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}
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}
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// Add the vertices not in edges
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for (ex.Init(S,TopAbs_VERTEX,TopAbs_EDGE); ex.More(); ex.Next()) {
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B.Add(BRep_Tool::Pnt(TopoDS::Vertex(ex.Current())));
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B.Enlarge(BRep_Tool::Tolerance(TopoDS::Vertex(ex.Current())));
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}
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}
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//=======================================================================
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//function : AddClose
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//purpose : Add a precise shape bounding to a box
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//=======================================================================
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void BRepBndLib::AddClose(const TopoDS_Shape& S, Bnd_Box& B)
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{
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TopExp_Explorer ex;
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// No faces
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// Add the edges
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BRepAdaptor_Curve BC;
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for (ex.Init(S,TopAbs_EDGE); ex.More(); ex.Next()) {
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BC.Initialize(TopoDS::Edge(ex.Current()));
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BndLib_Add3dCurve::Add(BC,0.,B);
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}
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// Add the vertices not in edges
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for (ex.Init(S,TopAbs_VERTEX,TopAbs_EDGE); ex.More(); ex.Next()) {
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B.Add(BRep_Tool::Pnt(TopoDS::Vertex(ex.Current())));
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}
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}
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