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d5f74e42d6
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.
259 lines
7.8 KiB
C++
259 lines
7.8 KiB
C++
// 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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//szv#4 S4163
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#include <ShapeAnalysis_Shell.ixx>
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#include <BRep_Builder.hxx>
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#include <BRep_Tool.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Iterator.hxx>
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#include <TopExp_Explorer.hxx>
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//=======================================================================
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//function : Clear
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//purpose :
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//=======================================================================
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void ShapeAnalysis_Shell::Clear()
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{
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myShells.Clear();
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myBad.Clear();
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myFree.Clear();
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myConex = Standard_False;
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}
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//=======================================================================
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//function : LoadShells
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//purpose :
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//=======================================================================
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void ShapeAnalysis_Shell::LoadShells(const TopoDS_Shape& shape)
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{
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if (shape.IsNull()) return;
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if (shape.ShapeType() == TopAbs_SHELL) myShells.Add (shape); //szv#4:S4163:12Mar99 i =
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else {
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for (TopExp_Explorer exs (shape,TopAbs_SHELL); exs.More(); exs.Next()) {
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TopoDS_Shape sh = exs.Current();
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myShells.Add (sh); //szv#4:S4163:12Mar99 i =
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}
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}
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}
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// CheckOrientedShells : alimente BadEdges et FreeEdges
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// BadEdges : edges presentes plus d une fois dans une meme orientation
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// FreeEdges : edges presentes une seule fois
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// On utilise pour cela une fonction auxiliaire : CheckEdges
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// Qui alimente 2 maps auxiliaires : les edges directes et les inverses
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static Standard_Boolean CheckEdges(const TopoDS_Shape& shape,
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TopTools_IndexedMapOfShape& bads,
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TopTools_IndexedMapOfShape& dirs,
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TopTools_IndexedMapOfShape& revs,
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TopTools_IndexedMapOfShape& ints)
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{
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Standard_Boolean res = Standard_False;
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if (shape.ShapeType() != TopAbs_EDGE) {
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for (TopoDS_Iterator it(shape); it.More(); it.Next()) {
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if (CheckEdges (it.Value(),bads,dirs,revs,ints)) res = Standard_True;
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}
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}
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else {
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TopoDS_Edge E = TopoDS::Edge(shape);
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if (BRep_Tool::Degenerated(E)) return Standard_False;
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if (shape.Orientation() == TopAbs_FORWARD) {
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//szv#4:S4163:12Mar99 optimized
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if (dirs.FindIndex (shape) == 0) dirs.Add (shape);
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else { bads.Add (shape); res = Standard_True; }
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}
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if (shape.Orientation() == TopAbs_REVERSED) {
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//szv#4:S4163:12Mar99 optimized
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if (revs.FindIndex (shape) == 0) revs.Add (shape);
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else { bads.Add (shape); res = Standard_True; }
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}
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if (shape.Orientation() == TopAbs_INTERNAL) {
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if (ints.FindIndex (shape) == 0) ints.Add (shape);
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//else { bads.Add (shape); res = Standard_True; }
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}
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}
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return res;
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}
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//=======================================================================
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//function : CheckOrientedShells
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//purpose :
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//=======================================================================
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Standard_Boolean ShapeAnalysis_Shell::CheckOrientedShells(const TopoDS_Shape& shape,
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const Standard_Boolean alsofree,
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const Standard_Boolean checkinternaledges)
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{
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myConex = Standard_False;
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if (shape.IsNull()) return Standard_False;
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Standard_Boolean res = Standard_False;
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TopTools_IndexedMapOfShape dirs, revs, ints;
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for (TopExp_Explorer exs(shape,TopAbs_SHELL); exs.More(); exs.Next()) {
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TopoDS_Shape sh = exs.Current();
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//szv#4:S4163:12Mar99 optimized
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if (CheckEdges (sh,myBad,dirs,revs,ints))
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if (myShells.Add (sh)) res = Standard_True;
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}
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// Resteraient a faire les FreeEdges
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if (!alsofree) return res;
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// Free Edges . Ce sont les edges d une map pas dans l autre
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// et lycee de Versailles (les maps dirs et revs)
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Standard_Integer nb = dirs.Extent();
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Standard_Integer i; // svv Jan11 2000 : porting on DEC
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for (i = 1; i <= nb; i ++) {
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TopoDS_Shape sh = dirs.FindKey (i);
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if (!myBad.Contains(sh)) {
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if (!revs.Contains(sh)) {
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if(checkinternaledges) {
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if (!ints.Contains(sh)) {
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myFree.Add (sh);
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}
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else myConex = Standard_True;
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}
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else {
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myFree.Add (sh);
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}
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}
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else myConex = Standard_True;
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}
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else myConex = Standard_True;
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}
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nb = revs.Extent();
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for (i = 1; i <= nb; i ++) {
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TopoDS_Shape sh = revs.FindKey (i);
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if (!myBad.Contains(sh)) {
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if (!dirs.Contains(sh)) {
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if(checkinternaledges) {
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if (!ints.Contains(sh)) {
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myFree.Add (sh);
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}
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else myConex = Standard_True;
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}
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else {
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myFree.Add (sh);
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}
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}
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else myConex = Standard_True;
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}
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else myConex = Standard_True;
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}
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return res;
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}
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//=======================================================================
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//function : IsLoaded
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//purpose :
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//=======================================================================
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Standard_Boolean ShapeAnalysis_Shell::IsLoaded(const TopoDS_Shape& shape) const
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{
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if (shape.IsNull()) return Standard_False;
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return myShells.Contains (shape);
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}
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//=======================================================================
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//function : NbLoaded
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//purpose :
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//=======================================================================
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Standard_Integer ShapeAnalysis_Shell::NbLoaded() const
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{
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return myShells.Extent();
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}
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//=======================================================================
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//function : Loaded
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//purpose :
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//=======================================================================
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TopoDS_Shape ShapeAnalysis_Shell::Loaded(const Standard_Integer num) const
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{
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return myShells.FindKey (num);
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}
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//=======================================================================
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//function : HasBadEdges
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//purpose :
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//=======================================================================
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Standard_Boolean ShapeAnalysis_Shell::HasBadEdges() const
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{
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return (myBad.Extent() > 0);
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}
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//=======================================================================
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//function : BadEdges
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//purpose :
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//=======================================================================
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TopoDS_Compound ShapeAnalysis_Shell::BadEdges() const
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{
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TopoDS_Compound C;
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BRep_Builder B;
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B.MakeCompound (C);
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Standard_Integer n = myBad.Extent();
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for (Standard_Integer i = 1; i <= n; i ++) B.Add (C,myBad.FindKey(i));
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return C;
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}
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//=======================================================================
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//function : HasFreeEdges
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//purpose :
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//=======================================================================
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Standard_Boolean ShapeAnalysis_Shell::HasFreeEdges() const
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{
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return (myFree.Extent() > 0);
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}
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//=======================================================================
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//function : FreeEdges
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//purpose :
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//=======================================================================
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TopoDS_Compound ShapeAnalysis_Shell::FreeEdges() const
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{
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TopoDS_Compound C;
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BRep_Builder B;
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B.MakeCompound (C);
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Standard_Integer n = myFree.Extent();
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for (Standard_Integer i = 1; i <= n; i ++) B.Add (C,myFree.FindKey(i));
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return C;
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}
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//=======================================================================
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//function : HasConnectedEdges
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//purpose :
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//=======================================================================
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Standard_Boolean ShapeAnalysis_Shell::HasConnectedEdges() const
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{
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return myConex;
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}
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