C++ TopoDS_Iterator::Next方法代码示例

//=======================================================================
//function : BuildResult
//purpose  :
//=======================================================================
void GEOMAlgo_Gluer2::BuildResult()
{
  Standard_Boolean bHasImage;
  TopoDS_Shape aCnew, aCXnew;
  TopoDS_Iterator aItC;
  BRep_Builder aBB;
  //
  myErrorStatus=0;
  myWarningStatus=0;
  //
  aItC.Initialize(myArgument);
  for (; aItC.More(); aItC.Next()) {
    const TopoDS_Shape& aCx=aItC.Value();
    bHasImage=HasImage(aCx);
    if (bHasImage) {
      break;
    }
  }
  //
  if (!bHasImage) {
    myShape=myArgument;
    return;
  }
  //
  GEOMAlgo_Tools3D::MakeContainer(TopAbs_COMPOUND, aCnew);
  //
  aItC.Initialize(myArgument);
  for (; aItC.More(); aItC.Next()) {
    const TopoDS_Shape& aCX=aItC.Value();
    if (myOrigins.IsBound(aCX)) {
      aCXnew=myOrigins.Find(aCX);
      aCXnew.Orientation(aCX.Orientation());
      aBB.Add(aCnew, aCXnew);
    }
    else {
      aBB.Add(aCnew, aCX);
    }
  }
  //
  if (!myKeepNonSolids) {
    Standard_Integer i, aNb;
    TopoDS_Shape aCnew1;
    TopTools_IndexedMapOfShape aM;
    //
    GEOMAlgo_Tools3D::MakeContainer(TopAbs_COMPOUND, aCnew1);
    //
    TopExp::MapShapes(aCnew, TopAbs_SOLID, aM);

    aNb=aM.Extent();
    for (i=1; i<=aNb; ++i) {
      const TopoDS_Shape& aS=aM(i);
      aBB.Add(aCnew1, aS);
    }
    aCnew=aCnew1;
  }
  //
  myShape=aCnew;
}

//=======================================================================
//function : FillImagesCompound
//purpose  :
//=======================================================================
void FillImagesCompound(const TopoDS_Shape& theS,
                        BRepAlgo_Image& theImages,
                        TopTools_MapOfShape& theMFP)
{
    Standard_Boolean bInterferred;
    TopAbs_ShapeEnum aTypeX;
    TopAbs_Orientation aOrX;
    TopoDS_Iterator aIt;
    BRep_Builder aBB;
    TopTools_ListIteratorOfListOfShape aItIm;
    //
    if (!theMFP.Add(theS)) {
        return;
    }
    //
    bInterferred=Standard_False;
    aIt.Initialize(theS);
    for (; aIt.More(); aIt.Next()) {
        const TopoDS_Shape& aSX=aIt.Value();
        aTypeX=aSX.ShapeType();
        if (aTypeX==TopAbs_COMPOUND) {
            FillImagesCompound(aSX, theImages, theMFP);
        }
        if (theImages.HasImage(aSX)) {
            bInterferred=Standard_True;
        }
    }
    if (!bInterferred) {
        return;
    }
    //
    TopoDS_Shape aCIm;
    GEOMAlgo_Tools3D::MakeContainer(TopAbs_COMPOUND, aCIm);
    //
    aIt.Initialize(theS);
    for (; aIt.More(); aIt.Next()) {
        const TopoDS_Shape& aSX=aIt.Value();
        aOrX=aSX.Orientation();
        if (theImages.HasImage(aSX)) {
            const TopTools_ListOfShape& aLFIm=theImages.Image(aSX);
            aItIm.Initialize(aLFIm);
            for (; aItIm.More(); aItIm.Next()) {
                TopoDS_Shape aSXIm=aItIm.Value();
                aSXIm.Orientation(aOrX);
                aBB.Add(aCIm, aSXIm);
            }
        }
        else {
            aBB.Add(aCIm, aSX);
        }
    }
    theImages.Bind(theS, aCIm);
}

//=======================================================================
//function : EdgePassKey
//purpose  : 
//=======================================================================
void GEOMAlgo_GlueDetector::EdgePassKey(const TopoDS_Edge& aE, 
					GEOMAlgo_PassKeyShape& aPK)
{
  TopAbs_Orientation aOr;
  TopoDS_Shape aVR;
  TopoDS_Iterator aIt;
  TopTools_ListOfShape aLV;
  //
  aIt.Initialize(aE);
  for (; aIt.More(); aIt.Next()) {
    const TopoDS_Shape& aV=aIt.Value();
    aOr=aV.Orientation();
    if (aOr==TopAbs_FORWARD || aOr==TopAbs_REVERSED) {
      if (myOrigins.IsBound(aV)) {
	aVR=myOrigins.Find(aV);
      }
      else {
	aVR=aV;
      }
      aLV.Append(aVR);
    }
  }
  //
  aPK.SetShapes(aLV);
}

//=======================================================================
//function : CorrectWires
//purpose  :
//=======================================================================
  Standard_Boolean GEOMAlgo_Tools::CorrectWires(const TopoDS_Shape& aShape)
{
  Standard_Boolean bRet;
  TopoDS_Iterator aItF;
  TopExp_Explorer aExp;
  TopTools_MapOfShape aMF;
  GeomAdaptor_Surface aGAS;
  GeomAbs_SurfaceType aTS;
  TopLoc_Location aLoc;
  //
  bRet=Standard_False;
  //
  aExp.Init(aShape, TopAbs_FACE);
  for (; aExp.More(); aExp.Next()) {
    const TopoDS_Face& aF=*((TopoDS_Face*)&aExp.Current());
    if (aMF.Add(aF)) {
      const Handle(Geom_Surface)& aS=BRep_Tool::Surface(aF, aLoc);
      aGAS.Load(aS);
      aTS=aGAS.GetType();
      if (aTS==GeomAbs_Cylinder || aTS==GeomAbs_Plane) {
	aItF.Initialize(aF);
	for (; aItF.More(); aItF.Next()) {
	  const TopoDS_Wire& aW=*((TopoDS_Wire*)&aItF.Value());
	  if (CorrectWire(aW, aF)) {
	   bRet=Standard_True;
	  }
	}
      }
    }
  }
  return bRet;
}

Standard_Boolean ShHealOper_ChangeOrientation::Perform()
{
  BRep_Builder B;
  if (myInitShape.ShapeType() == TopAbs_SHELL) {
    myResultShape = myInitShape.EmptyCopied();
    TopoDS_Iterator itr (myInitShape);
    while (itr.More()) {
      B.Add(myResultShape,itr.Value().Reversed());
      itr.Next();
    }
  }
  else if (myInitShape.ShapeType() == TopAbs_FACE) {
    myResultShape = myInitShape.EmptyCopied();
    TopoDS_Iterator itr (myInitShape);
    while (itr.More()) {
      B.Add(myResultShape,itr.Value());
      itr.Next();
    }
    myResultShape.Reverse();
  }
  else if ( myInitShape.ShapeType() == TopAbs_WIRE || myInitShape.ShapeType() == TopAbs_EDGE) {
    myResultShape = myInitShape.EmptyCopied();
    TopoDS_Iterator itr (myInitShape);
    while (itr.More()) {
      B.Add(myResultShape,itr.Value());
      itr.Next();
    }
    myResultShape.Reverse();
  }
  else {
    BRepBuilderAPI_Copy Copy (myInitShape);
    if (!Copy.IsDone()) return false;

    myResultShape = Copy.Shape();
    if (myResultShape.IsNull()) return false;

    if (myResultShape.Orientation() == TopAbs_FORWARD)
      myResultShape.Orientation(TopAbs_REVERSED);
    else
      myResultShape.Orientation(TopAbs_FORWARD);
  }

  return true;
}

//=======================================================================
//function : MapShapes
//purpose  :
//=======================================================================
void MapShapes(const TopoDS_Shape& theS,
               TopTools_MapOfShape& theM)
{
    theM.Add(theS);
    TopoDS_Iterator anIt;
    anIt.Initialize(theS);
    for (; anIt.More(); anIt.Next()) {
        const TopoDS_Shape& aSx=anIt.Value();
        MapShapes(aSx, theM);
    }
}

//=======================================================================
//function : OwnInternalShapes
//purpose  :
//=======================================================================
  void OwnInternalShapes(const TopoDS_Shape& theS,
                         TopTools_IndexedMapOfShape& theMx)
{
  TopoDS_Iterator aIt;
  //
  aIt.Initialize(theS);
  for (; aIt.More(); aIt.Next()) {
    const TopoDS_Shape& aSx=aIt.Value();
    if (aSx.ShapeType()!=TopAbs_SHELL) {
      theMx.Add(aSx);
    }
  }
}

//=======================================================================
//function :  SupressFaces
//purpose  :
//=======================================================================
void SuppressFacesRec (const TopTools_SequenceOfShape& theShapesFaces,
                       const TopoDS_Shape&             theOriginalShape,
                       TopoDS_Shape&                   theOutShape)
{
  if ((theOriginalShape.ShapeType() != TopAbs_COMPOUND &&
       theOriginalShape.ShapeType() != TopAbs_COMPSOLID))
  {
    ShHealOper_RemoveFace aHealer (theOriginalShape);
    Standard_Boolean aResult = aHealer.Perform(theShapesFaces);

    if (aResult)
      theOutShape = aHealer.GetResultShape();
    else
      raiseNotDoneExeption(aHealer.GetErrorStatus());
  }
  else
  {
    BRep_Builder BB;
    TopoDS_Compound CC;
    BB.MakeCompound(CC);

    TopTools_MapOfShape mapShape;
    TopoDS_Iterator It (theOriginalShape, Standard_True, Standard_True);

    for (; It.More(); It.Next()) {
      TopoDS_Shape aShape_i = It.Value();
      if (mapShape.Add(aShape_i)) {
        // check, if current shape contains at least one of faces to be removed
        bool isFound = false;
        TopTools_IndexedMapOfShape aShapes_i;
        TopExp::MapShapes(aShape_i, aShapes_i);
        for (int i = 1; i <= theShapesFaces.Length() && !isFound; i++) {
          const TopoDS_Shape& aFace_i = theShapesFaces.Value(i);
          if (aShapes_i.Contains(aFace_i)) isFound = true;
        }
        if (isFound) {
          TopoDS_Shape anOutSh_i;
          SuppressFacesRec(theShapesFaces, aShape_i, anOutSh_i);
          if ( !anOutSh_i.IsNull() )
            BB.Add(CC, anOutSh_i);
        }
        else {
          // nothing to do
          BB.Add(CC, aShape_i);
        }
      }
    }
    theOutShape = CC;
  }
}

//=======================================================================
//function : MakeInternalWires
//purpose  : 
//=======================================================================
void MakeInternalWires(const TopTools_MapOfShape& theME,
		       TopTools_ListOfShape& theWires)
{
  TopTools_MapIteratorOfMapOfShape aItM;
  TopTools_MapOfShape aAddedMap;
  TopTools_ListIteratorOfListOfShape aItE;
  TopTools_IndexedDataMapOfShapeListOfShape aMVE;
  BRep_Builder aBB;
  //
  aItM.Initialize(theME);
  for (; aItM.More(); aItM.Next()) {
    const TopoDS_Shape& aE=aItM.Key();
    TopExp::MapShapesAndAncestors(aE, TopAbs_VERTEX, TopAbs_EDGE, aMVE);
  }
  //
  aItM.Initialize(theME);
  for (; aItM.More(); aItM.Next()) {
    TopoDS_Shape aEE=aItM.Key();
    if (!aAddedMap.Add(aEE)) {
      continue;
    }
    //
    // make a new shell
    TopoDS_Wire aW;
    aBB.MakeWire(aW);    
    aEE.Orientation(TopAbs_INTERNAL);
    aBB.Add(aW, aEE);
    //
    TopoDS_Iterator aItAdded (aW);
    for (; aItAdded.More(); aItAdded.Next()) {
      const TopoDS_Shape& aE =aItAdded.Value();
      //
      TopExp_Explorer aExp(aE, TopAbs_VERTEX);
      for (; aExp.More(); aExp.Next()) {
        const TopoDS_Shape& aV =aExp.Current();
	const TopTools_ListOfShape& aLE=aMVE.FindFromKey(aV);
	aItE.Initialize(aLE);
	for (; aItE.More(); aItE.Next()) { 
	  TopoDS_Shape aEL=aItE.Value();
	  if (aAddedMap.Add(aEL)){
	    aEL.Orientation(TopAbs_INTERNAL);
	    aBB.Add(aW, aEL);
	  }
	}
      }
    }
    theWires.Append(aW);
  }
}

//=======================================================================
// function: GetNextVertex
// purpose: 
//=======================================================================
 void GetNextVertex(const TopoDS_Vertex& aV,
		    const TopoDS_Edge& aE,
		    TopoDS_Vertex& aV1)
{
  TopoDS_Iterator aIt;
  //
  aIt.Initialize(aE);
  for (; aIt.More(); aIt.Next()) {
    const TopoDS_Shape& aVx=aIt.Value();
    if (!aVx.IsEqual(aV)) {
      aV1=TopoDS::Vertex(aVx);
      return ;
    }
  }
  aV1=aV;
}

//=======================================================================
//function : FillCompounds
//purpose  :
//=======================================================================
void GEOMAlgo_Gluer2::FillCompounds()
{
  TopAbs_ShapeEnum aType;
  TopoDS_Iterator aItC;
  //
  myErrorStatus=0;
  myWarningStatus=0;
  //
  aItC.Initialize(myArgument);
  for (; aItC.More(); aItC.Next()) {
    const TopoDS_Shape& aCx=aItC.Value();
    aType=aCx.ShapeType();
    if (aType==TopAbs_COMPOUND) {
      FillCompound(aCx);
    }
  }
}

// Modified  Thu Sep 14 14:35:18 2006
// Contribution of Samtech www.samcef.com BEGIN
//=======================================================================
//function : Contains
//purpose  :
//=======================================================================
Standard_Boolean Contains(const TopoDS_Edge& aE,
                          const TopoDS_Vertex& aV)
{
  Standard_Boolean bRet;
  TopoDS_Iterator aIt;
  //
  bRet=Standard_False;
  aIt.Initialize(aE);
  for (; aIt.More(); aIt.Next()) {
    const TopoDS_Shape& aVE=aIt.Value();
    if (aVE.IsSame(aV)) {
      bRet=!bRet;
      break;
    }
  }
  return bRet;
}

//=======================================================================
// function:  Coord2dVf
// purpose:
//=======================================================================
 gp_Pnt2d Coord2dVf (const TopoDS_Edge& aE,
		     const TopoDS_Face& aF)
{
  Standard_Real aCoord=99.;
  gp_Pnt2d aP2D1(aCoord, aCoord);
  TopoDS_Iterator aIt;
  //
  aIt.Initialize(aE);
  for (; aIt.More(); aIt.Next()) {
    const TopoDS_Shape& aVx=aIt.Value();
    if (aVx.Orientation()==TopAbs_FORWARD) {
      const TopoDS_Vertex& aVxx=TopoDS::Vertex(aVx);
      aP2D1=Coord2d(aVxx, aE, aF);
      return aP2D1;
    }
  }
  return aP2D1;
}

//=======================================================================
//function : IsGrowthWire
//purpose  : 
//=======================================================================
Standard_Boolean IsGrowthWire(const TopoDS_Shape& theWire,
			      const TopTools_IndexedMapOfShape& theMHE)
{
  Standard_Boolean bRet;
  TopoDS_Iterator aIt;
  // 
  bRet=Standard_False;
  if (theMHE.Extent()) {
    aIt.Initialize(theWire);
    for(; aIt.More(); aIt.Next()) {
      const TopoDS_Shape& aE=aIt.Value();
      if (theMHE.Contains(aE)) {
	return !bRet;
      }
    }
  }
  return bRet;
}

bool StdMeshers_RadialPrism_3D::IsApplicable( const TopoDS_Shape & aShape, bool toCheckAll )
{
  bool isCurShellApp;
  int nbFoundSolids = 0;
  for (TopExp_Explorer exp( aShape, TopAbs_SOLID ); exp.More(); exp.Next(), ++nbFoundSolids )
  {
    TopoDS_Shape shell[2];
    int nbShells = 0;
    for ( TopoDS_Iterator It (exp.Current()); It.More(); It.Next() )
    {
      nbShells++;
      if ( nbShells > 2 ) {
        if ( toCheckAll ) return false;
        break;
      }
      shell[ nbShells-1 ] = It.Value();
    }
    if ( nbShells != 2 ) { 
      if ( toCheckAll ) return false;  
      continue; 
    }

    int nbFaces1 = SMESH_MesherHelper:: Count( shell[0], TopAbs_FACE, 0 );
    int nbFaces2 = SMESH_MesherHelper:: Count( shell[1], TopAbs_FACE, 0 );
    if ( nbFaces1 != nbFaces2 ){
      if( toCheckAll ) return false;
      continue;
    }
    int nbEdges1 = SMESH_MesherHelper:: Count( shell[0], TopAbs_EDGE, 0 );
    int nbEdges2 = SMESH_MesherHelper:: Count( shell[1], TopAbs_EDGE, 0 );
    if ( nbEdges1 != nbEdges2 ){
      if( toCheckAll ) return false;
      continue;
    }
    int nbVertices1 = SMESH_MesherHelper:: Count( shell[0], TopAbs_VERTEX, 0 );
    int nbVertices2 = SMESH_MesherHelper:: Count( shell[1], TopAbs_VERTEX, 0 );
    if ( nbVertices1 != nbVertices2 ){
      if( toCheckAll ) return false;
      continue;
    }
    if ( !toCheckAll ) return true;
  }
  return ( toCheckAll && nbFoundSolids != 0);
};