src/TopOpeBRepBuild/TopOpeBRepBuild_Builder1_2.cxx

   1 // Created on: 2000-02-01
   2 // Created by: Peter KURNEV
   3 // Copyright (c) 2000-2014 OPEN CASCADE SAS
   4 //
   5 // This file is part of Open CASCADE Technology software library.
   6 //
   7 // This library is free software; you can redistribute it and / or modify it
   8 // under the terms of the GNU Lesser General Public version 2.1 as published
   9 // by the Free Software Foundation, with special exception defined in the file
  10 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
  11 // distribution for complete text of the license and disclaimer of any warranty.
  12 //
  13 // Alternatively, this file may be used under the terms of Open CASCADE
  14 // commercial license or contractual agreement.
  15
  16 #include <TopOpeBRepBuild_Builder1.ixx>
  17
  18 #include <TopExp.hxx>
  19 #include <TopExp_Explorer.hxx>
  20
  21 #include <TopoDS.hxx>
  22 #include <TopoDS_Shape.hxx>
  23 #include <TopoDS_Face.hxx>
  24 #include <TopoDS_Solid.hxx>
  25 #include <TopoDS_Shell.hxx>
  26 #include <TopoDS_Wire.hxx>
  27 #include <TopoDS_Edge.hxx>
  28 #include <TopoDS_Vertex.hxx>
  29
  30 #include <BRep_Builder.hxx>
  31
  32 #include <TopTools_ListOfShape.hxx>
  33 #include <TopTools_ListIteratorOfListOfShape.hxx>
  34 #include <TopTools_IndexedMapOfShape.hxx>
  35 #include <TopTools_IndexedDataMapOfShapeShape.hxx>
  36 #include <TopOpeBRepDS_CurveExplorer.hxx>
  37
  38 //=======================================================================
  39 //function : TopOpeBRepBuild_Builder1::CorrectResult2d
  40 //purpose  : Change the Result (after CorrectFace2d)
  41 //=======================================================================
  42 Standard_Integer TopOpeBRepBuild_Builder1::CorrectResult2d(TopoDS_Shape& aResult)
  43
  44 {
  45   Standard_Integer aNb=myMapOfCorrect2dEdges.Extent();
  46   if(!aNb)
  47     return 0;
  48
  49   if (aResult.ShapeType()!=TopAbs_SOLID)
  50     return 0;
  51
  52   //
  53   // 1. Map Of sources' subshapes .
  54   //    The map (aSourceShapeMap) is to prevent unnecessary coping
  55   TopTools_IndexedMapOfShape aSourceShapeMap;
  56   TopExp::MapShapes(myShape1, TopAbs_EDGE, aSourceShapeMap);
  57   TopExp::MapShapes(myShape2, TopAbs_EDGE, aSourceShapeMap);
  58
  59   TopTools_IndexedDataMapOfShapeShape EdMap;
  60   BRep_Builder BB;
  61   TopoDS_Shape aLocalShape = aResult.EmptyCopied();
  62   TopoDS_Solid aSolid=TopoDS::Solid(aLocalShape);
  63   //  TopoDS_Solid aSolid=TopoDS::Solid(aResult.EmptyCopied());
  64
  65   TopExp_Explorer anExpShells(aResult, TopAbs_SHELL);
  66   for (; anExpShells.More(); anExpShells.Next()) {
  67     const TopoDS_Shell& S=TopoDS::Shell(anExpShells.Current());
  68     aLocalShape = S.EmptyCopied();
  69     TopoDS_Shell aShell=TopoDS::Shell(aLocalShape);
  70     //    TopoDS_Shell aShell=TopoDS::Shell(S.EmptyCopied());
  71
  72     TopExp_Explorer anExpFaces(S, TopAbs_FACE);
  73     for (; anExpFaces.More(); anExpFaces.Next()) {
  74       TopoDS_Face F=TopoDS::Face(anExpFaces.Current());
  75       //modified by NIZHNY-MZV  Mon Mar 27 09:51:59 2000
  76       TopAbs_Orientation Fori = F.Orientation();
  77       //we should explore FORWARD face
  78 //      F.Orientation(TopAbs_FORWARD);
  79       aLocalShape = F.EmptyCopied();
  80       TopoDS_Face aFace=TopoDS::Face(aLocalShape);
  81       //      TopoDS_Face aFace=TopoDS::Face(F.EmptyCopied());
  82
  83       TopExp_Explorer anExpWires(F, TopAbs_WIRE);
  84       for (; anExpWires.More(); anExpWires.Next()) {
  85         TopoDS_Wire W=TopoDS::Wire(anExpWires.Current());
  86         //modified by NIZHNY-MZV  Mon Mar 27 09:51:59 2000
  87         TopAbs_Orientation Wori = W.Orientation();
  88
  89         //we should explore FORWARD wire
  90 //      W.Orientation(TopAbs_FORWARD);
  91         aLocalShape = W.EmptyCopied();
  92         TopoDS_Wire aWire = TopoDS::Wire(aLocalShape);
  93         //      TopoDS_Wire aWire = TopoDS::Wire(W.EmptyCopied());
  94
  95         TopExp_Explorer anExpEdges(W, TopAbs_EDGE);
  96         for (; anExpEdges.More(); anExpEdges.Next()) {
  97           TopoDS_Edge E = TopoDS::Edge(anExpEdges.Current());
  98
  99           if (EdMap.Contains(E)) {
 100             TopoDS_Shape anEdge = EdMap.ChangeFromKey(E);
 101
 102             anEdge.Orientation(E.Orientation());
 103             BB.Add (aWire, anEdge);
 104             continue;
 105           }
 106
 107
 108           if (myMapOfCorrect2dEdges.Contains(E)) {
 109             TopoDS_Shape anEdge=myMapOfCorrect2dEdges.ChangeFromKey(E);
 110
 111             anEdge.Orientation(E.Orientation());
 112             BB.Add (aWire, anEdge);
 113             EdMap.Add(E, anEdge);
 114             continue;
 115           }
 116
 117           // add edges
 118           TopoDS_Edge anEdge;
 119           //we copy edge in order to not change it in source shapes
 120           if(aSourceShapeMap.Contains(E)) {
 121             TopoDS_Shape aLocalShape1 = E.EmptyCopied();
 122             anEdge = TopoDS::Edge(aLocalShape1);
 123             //      anEdge = TopoDS::Edge(E.EmptyCopied());
 124
 125             EdMap.Add(E, anEdge);
 126
 127             TopExp_Explorer anExpVertices(E, TopAbs_VERTEX);
 128             Standard_Boolean free = anEdge.Free();
 129             anEdge.Free(Standard_True);
 130             for(; anExpVertices.More();  anExpVertices.Next())
 131               BB.Add(anEdge, anExpVertices.Current());
 132
 133             anEdge.Free(free);
 134           }
 135           else
 136             anEdge = E;
 137
 138           anEdge.Orientation(E.Orientation());
 139           BB.Add (aWire, anEdge);
 140         }
 141         // Add wires
 142         aWire.Orientation(Wori);
 143         BB.Add (aFace, aWire);
 144       }
 145
 146       aFace.Orientation(Fori);
 147       BB.Add (aShell, aFace);
 148     }
 149
 150     aShell.Orientation(S.Orientation());
 151     BB.Add (aSolid, aShell);
 152   }
 153   aResult=aSolid;
 154
 155   //update section curves
 156   TopOpeBRepDS_CurveExplorer cex(myDataStructure->DS());
 157   for (; cex.More(); cex.Next()) {
 158     Standard_Integer ic = cex.Index();
 159     TopTools_ListOfShape& LSE = ChangeNewEdges(ic);
 160     TopTools_ListOfShape corrLSE;
 161     TopTools_ListIteratorOfListOfShape it(LSE);
 162     for(; it.More(); it.Next())  {
 163       const TopoDS_Shape& E = it.Value();
 164       if(EdMap.Contains(E)) {
 165         const TopoDS_Shape& newE = EdMap.FindFromKey(E);
 166         corrLSE.Append(newE);
 167       }
 168       else
 169         corrLSE.Append(E);
 170     }
 171     LSE.Clear();
 172     LSE.Append(corrLSE);
 173   }
 174
 175
 176   //update section edges
 177   const TopOpeBRepDS_DataStructure& BDS = myDataStructure->DS();
 178   Standard_Integer i,nes = BDS.NbSectionEdges();
 179
 180   for(i = 1; i <= nes; i++) {
 181     const TopoDS_Shape& es = BDS.SectionEdge(i);
 182     if(es.IsNull())
 183       continue;
 184
 185     for(Standard_Integer j = 0; j <= 2; j++) {
 186       TopAbs_State staspl = TopAbs_State(j); // 0 - IN, 1 - OUT, 2 - ON
 187       TopTools_ListOfShape& LSE = ChangeSplit(es,staspl);
 188       TopTools_ListOfShape corrLSE;
 189       TopTools_ListIteratorOfListOfShape it(LSE);
 190       for(; it.More(); it.Next()) {
 191         const TopoDS_Shape& E = it.Value();
 192         if(EdMap.Contains(E)) {
 193           const TopoDS_Shape& newE = EdMap.FindFromKey(E);
 194           corrLSE.Append(newE);
 195         }
 196         else
 197           corrLSE.Append(E);
 198       }
 199       LSE.Clear();
 200       LSE.Append(corrLSE);
 201     }
 202   }
 203   return 1;
 204 }