unsigned int GetNumberOfSubshapes(const TopoDS_Shape &shape)
{
if (shape.ShapeType() == TopAbs_COMPOUND) {
unsigned int n = 0;
for (TopoDS_Iterator anIter(shape); anIter.More(); anIter.Next()) {
n++;
}
return n;
}
else {
return 0;
}
}
void
GEOM_ShadingFace::
Execute()
{
vtkPolyData* aPolyData = GetOutput();
aPolyData->Allocate();
vtkPoints* aPts = vtkPoints::New();
aPolyData->SetPoints(aPts);
aPts->Delete();
TFaceSet::Iterator anIter(myFaceSet);
for(; anIter.More(); anIter.Next()){
const TopoDS_Face& aFace = anIter.Value();
OCC2VTK(aFace,aPolyData,aPts);
}
}
void
GEOM_VertexSource::
Execute()
{
vtkPolyData* aPolyData = GetOutput();
aPolyData->Allocate();
vtkPoints* aPts = vtkPoints::New();
aPolyData->SetPoints(aPts);
aPts->Delete();
TVertexSet::Iterator anIter(myVertexSet);
for(; anIter.More(); anIter.Next()){
const TopoDS_Vertex& aVertex = anIter.Value();
OCC2VTK(aVertex,aPolyData,aPts);
}
}
TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
const Standard_Real Tol)
{
myContext = new ShapeBuild_ReShape;
myTolerance = Tol;
TopoDS_Shape aResult = myContext->Apply(Shape);
// processing each solid
TopAbs_ShapeEnum aType = TopAbs_SOLID;
TopExp_Explorer exps (Shape, aType);
if (!exps.More()) {
aType = TopAbs_SHELL;
exps.Init(Shape, aType);
}
for (; exps.More(); exps.Next()) {
//TopoDS_Solid aSolid = TopoDS::Solid(exps.Current());
TopoDS_Shape aSolid = exps.Current();
TopTools_IndexedMapOfShape ChangedFaces;
// creating map of edge faces
TopTools_IndexedDataMapOfShapeListOfShape aMapEdgeFaces;
TopExp::MapShapesAndAncestors(aSolid, TopAbs_EDGE, TopAbs_FACE, aMapEdgeFaces);
Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
TopoDS_Shape aRes = aSolid;
aRes = aContext->Apply(aSolid);
// processing each face
TopExp_Explorer exp;
for (exp.Init(aRes, TopAbs_FACE); exp.More(); exp.Next()) {
TopoDS_Face aFace =
TopoDS::Face(aContext->Apply(exp.Current().Oriented(TopAbs_FORWARD)));
TopTools_IndexedDataMapOfShapeListOfShape aMapFacesEdges;
for (TopExp_Explorer expe(aFace,TopAbs_EDGE); expe.More(); expe.Next()) {
TopoDS_Edge edge = TopoDS::Edge(expe.Current());
if (!aMapEdgeFaces.Contains(edge)) continue;
const TopTools_ListOfShape& aList = aMapEdgeFaces.FindFromKey(edge);
TopTools_ListIteratorOfListOfShape anIter(aList);
for ( ; anIter.More(); anIter.Next()) {
TopoDS_Face face = TopoDS::Face(anIter.Value());
TopoDS_Face face1 = TopoDS::Face(aContext->Apply(anIter.Value()));
if (face1.IsSame(aFace)) continue;
if (aMapFacesEdges.Contains(face)) {
aMapFacesEdges.ChangeFromKey(face).Append(edge);
}
else {
TopTools_ListOfShape ListEdges;
ListEdges.Append(edge);
aMapFacesEdges.Add(face,ListEdges);
}
}
}
for (Standard_Integer i=1; i<=aMapFacesEdges.Extent(); i++) {
const TopTools_ListOfShape& ListEdges = aMapFacesEdges.FindFromIndex(i);
TopTools_SequenceOfShape SeqEdges;
TopTools_ListIteratorOfListOfShape anIter(ListEdges);
for ( ; anIter.More(); anIter.Next()) {
SeqEdges.Append(anIter.Value());
}
if (SeqEdges.Length()==1) continue;
TopoDS_Edge E;
if ( MergeEdges(SeqEdges,aFace,Tol,E) ) {
// now we have only one edge - aChain.Value(1)
// we have to replace old ListEdges with this new edge
aContext->Replace(SeqEdges(1),E);
for (Standard_Integer j=2; j<=SeqEdges.Length(); j++) {
aContext->Remove(SeqEdges(j));
}
TopoDS_Face tmpF = TopoDS::Face(exp.Current());
if ( !ChangedFaces.Contains(tmpF) )
ChangedFaces.Add(tmpF);
tmpF = TopoDS::Face(aMapFacesEdges.FindKey(i));
if ( !ChangedFaces.Contains(tmpF) )
ChangedFaces.Add(tmpF);
}
}
} // end processing each face
// fix changed faces and replace them in the local context
for (Standard_Integer i=1; i<=ChangedFaces.Extent(); i++) {
TopoDS_Face aFace = TopoDS::Face(aContext->Apply(ChangedFaces.FindKey(i)));
Handle(ShapeFix_Face) sff = new ShapeFix_Face(aFace);
sff->SetContext(myContext);
sff->SetPrecision(myTolerance);
sff->SetMinTolerance(myTolerance);
sff->SetMaxTolerance(Max(1.,myTolerance*1000.));
sff->Perform();
aContext->Replace(aFace,sff->Face());
}
if (ChangedFaces.Extent() > 0) {
// fix changed shell and replace it in the local context
TopoDS_Shape aRes1 = aContext->Apply(aRes);
TopExp_Explorer expsh;
for (expsh.Init(aRes1, TopAbs_SHELL); expsh.More(); expsh.Next()) {
TopoDS_Shell aShell = TopoDS::Shell(expsh.Current());
Handle(ShapeFix_Shell) sfsh = new ShapeFix_Shell;
sfsh->FixFaceOrientation(aShell);
aContext->Replace(aShell,sfsh->Shell());
}
TopoDS_Shape aRes2 = aContext->Apply(aRes1);
// put new solid into global context
myContext->Replace(aSolid,aRes2);
}
} // end processing each solid
aResult = myContext->Apply(Shape);
return aResult;
}
