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#include <ShapeUpgrade_RemoveInternalWires.ixx>
#include <TopExp_Explorer.hxx>
#include <TopExp.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopoDS.hxx>
#include <ShapeAnalysis.hxx>
#include <ShapeExtend.hxx>
#include <TopTools_SequenceOfShape.hxx>
#include <ShapeExtend_WireData.hxx>
#include <ShapeBuild_ReShape.hxx>
#include <Precision.hxx>
#include <TopoDS_Edge.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
//=======================================================================
//function : ShapeUpgrade_RemoveInternalWires
//purpose :
//=======================================================================
ShapeUpgrade_RemoveInternalWires::ShapeUpgrade_RemoveInternalWires()
{
myMinArea =0.;
myRemoveFacesMode = Standard_True;
myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
SetContext(aContext);
}
//=======================================================================
//function : ShapeUpgrade_RemoveInternalWires
//purpose :
//=======================================================================
ShapeUpgrade_RemoveInternalWires::ShapeUpgrade_RemoveInternalWires(const TopoDS_Shape& theShape)
{
Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
SetContext(aContext);
Init(theShape);
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void ShapeUpgrade_RemoveInternalWires::Init(const TopoDS_Shape& theShape)
{
myShape = theShape;
Context()->Apply(theShape);
TopExp::MapShapesAndAncestors(myShape,TopAbs_EDGE,TopAbs_FACE,myEdgeFaces);
myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
myMinArea =0.;
myRemoveFacesMode = Standard_True;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
Standard_Boolean ShapeUpgrade_RemoveInternalWires::Perform()
{
Clear();
if(myShape.IsNull()) {
myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
return Standard_False;
}
TopExp_Explorer aExpF(myShape,TopAbs_FACE);
for( ; aExpF.More(); aExpF.Next()) {
TopoDS_Face aF = TopoDS::Face(aExpF.Current());
removeSmallWire(aF,TopoDS_Wire());
}
if(myRemoveFacesMode)
removeSmallFaces();
myResult = Context()->Apply(myShape);
return Status( ShapeExtend_DONE );
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
Standard_Boolean ShapeUpgrade_RemoveInternalWires::Perform(const TopTools_SequenceOfShape& theSeqShapes)
{
if(myShape.IsNull()) {
myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
return Standard_False;
}
Clear();
TopTools_IndexedDataMapOfShapeListOfShape aWireFaces;
Standard_Integer i =1, nb = theSeqShapes.Length();
for( ; i <= nb; i++) {
TopoDS_Shape aS = theSeqShapes.Value(i);
if(aS.ShapeType() == TopAbs_FACE)
removeSmallWire(aS,TopoDS_Wire());
else if(aS.ShapeType() == TopAbs_WIRE) {
if(!aWireFaces.Extent())
TopExp::MapShapesAndAncestors(myShape,TopAbs_WIRE,TopAbs_FACE,aWireFaces);
if(aWireFaces.Contains(aS)) {
const TopTools_ListOfShape& alfaces = aWireFaces.FindFromKey(aS);
TopTools_ListIteratorOfListOfShape liter(alfaces);
for( ; liter.More(); liter.Next())
removeSmallWire(liter.Value(),aS);
}
}
}
if(myRemoveFacesMode)
removeSmallFaces();
myResult = Context()->Apply(myShape);
return Status( ShapeExtend_DONE );
}
//=======================================================================
//function : removeSmallWire
//purpose :
//=======================================================================
void ShapeUpgrade_RemoveInternalWires::removeSmallWire (const TopoDS_Shape& theFace,
const TopoDS_Shape& theWire)
{
TopoDS_Face aF = TopoDS::Face(theFace);
TopoDS_Wire anOutW = ShapeAnalysis::OuterWire(aF);
TopoDS_Iterator aIt(aF);
for( ; aIt.More(); aIt.Next()) {
if(aIt.Value().ShapeType() != TopAbs_WIRE || aIt.Value().IsSame(anOutW))
continue;
//Handle(ShapeExtend_WireData) asewd = new ShapeExtend_WireData();
TopoDS_Wire aW = TopoDS::Wire(aIt.Value());
if(!theWire.IsNull() && !theWire.IsSame(aW))
continue;
Standard_Real anArea = ShapeAnalysis::ContourArea(aW);
if(anArea < myMinArea -Precision::Confusion()) {
Context()->Remove(aW);
myRemoveWires.Append(aW);
myStatus |= ShapeExtend::EncodeStatus(ShapeExtend_DONE1);
if(!myRemoveFacesMode )
continue;
TopoDS_Iterator aIte(aW,Standard_False);
for( ; aIte.More(); aIte.Next()) {
TopoDS_Shape aE = aIte.Value();
if(myRemoveEdges.IsBound(aE))
myRemoveEdges.ChangeFind(aE).Append(aF);
else {
TopTools_ListOfShape alfaces;
alfaces.Append(aF);
myRemoveEdges.Bind(aE,alfaces);
}
}
}
}
}
//=======================================================================
//function : removeSmallFaces
//purpose :
//=======================================================================
void ShapeUpgrade_RemoveInternalWires::removeSmallFaces ()
{
Standard_Integer i =1;
for( ; i <= myRemoveWires.Length() ; i++) {
TopoDS_Shape aWire = myRemoveWires.Value(i);
TopoDS_Iterator aIte(aWire,Standard_False);
TopTools_IndexedMapOfShape aFaceCandidates;
//collecting all faces containing edges from removed wire
for( ; aIte.More(); aIte.Next()) {
TopoDS_Shape aEdge = aIte.Value();
if(!myEdgeFaces.Contains(aEdge)) {
myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
continue;
}
const TopTools_ListOfShape& aLface1 = myEdgeFaces.FindFromKey(aEdge);
const TopTools_ListOfShape& aLface2 = myRemoveEdges.Find(aEdge);
TopTools_ListIteratorOfListOfShape aliter(aLface1);
TopTools_ListIteratorOfListOfShape aliter2(aLface2);
for( ; aliter.More(); aliter.Next()) {
TopoDS_Shape aF = Context()->Apply(aliter.Value());
if(aF.IsNull())
continue;
Standard_Boolean isFind = Standard_False;
for( ; aliter2.More() && !isFind; aliter2.Next()) {
TopoDS_Shape aF2 = Context()->Apply(aliter2.Value());
isFind = aF.IsSame(aF2);
}
if(!isFind) {
TopoDS_Wire aWout = ShapeAnalysis::OuterWire(TopoDS::Face(aF));
Standard_Boolean isOuter = Standard_False;
TopoDS_Iterator aIter(aWout,Standard_False);
for( ; aIter.More() && !isOuter; aIter.Next())
isOuter = aEdge.IsSame(aIter.Value());
if(isOuter)
aFaceCandidates.Add(aF);
}
}
}
//remove faces which have outer wire consist of only
//edges from removed wires and
//seam edges for faces based on conic surface or
//in the case of a few faces based on the same conic surface
//the edges belogining these faces.
Standard_Integer k =1;
for( ; k <= aFaceCandidates.Extent(); k++) {
TopoDS_Shape aF = aFaceCandidates.FindKey(k);
TopoDS_Wire anOutW = ShapeAnalysis::OuterWire(TopoDS::Face(aF));
Handle(ShapeExtend_WireData) asewd = new ShapeExtend_WireData(anOutW);
Standard_Integer n =1, nbE = asewd->NbEdges();
Standard_Integer nbNotRemoved =0;
for( ; n <= nbE; n++) {
if(asewd->IsSeam(n))
continue;
TopoDS_Edge aE = asewd->Edge(n);
if(!myRemoveEdges.IsBound(aE) ) {
const TopTools_ListOfShape& aLface3 = myEdgeFaces.FindFromKey(aE);
TopTools_ListIteratorOfListOfShape aliter3(aLface3);
for( ; aliter3.More();aliter3.Next()) {
TopoDS_Shape aF2 = Context()->Apply(aliter3.Value());
if(aF2.IsNull())
continue;
if(!aF.IsSame(aF2) && !aFaceCandidates.Contains(aF2))
nbNotRemoved++;
}
}
}
if(!nbNotRemoved) {
Context()->Remove(aF);
myRemovedFaces.Append(aF);
}
}
}
if(myRemovedFaces.Length())
myStatus |= ShapeExtend::EncodeStatus(ShapeExtend_DONE2);
}
//=======================================================================
//function : Clear
//purpose :
//=======================================================================
void ShapeUpgrade_RemoveInternalWires::Clear()
{
myRemoveEdges.Clear();
myRemovedFaces.Clear();
myRemoveWires.Clear();
myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
}
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