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Fix RemoveExtraEdges() to obtain valid shapes. Fix done by SKL.

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jfa 2005-03-23 07:21:06 +00:00
parent 15ffc0f2df
commit 847b1b1b59
1 changed files with 46 additions and 83 deletions
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129
src/GEOMAlgo/BlockFix_UnionEdges.cxx
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@ -18,6 +18,7 @@
#include <ShapeAnalysis_Edge.hxx>
#include <ShapeFix_Edge.hxx>
#include <ShapeFix_Face.hxx>
#include <ShapeFix_Shell.hxx>
#include <TColgp_SequenceOfPnt.hxx>
#include <TColStd_MapOfInteger.hxx>
#include <TopExp.hxx>
@ -31,6 +32,7 @@
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Shell.hxx>
#include <TopoDS_Solid.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Iterator.hxx>
@ -67,7 +69,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
TColStd_MapOfInteger IndUsedEdges;
IndUsedEdges.Add(1);
Standard_Integer j;
for (j = 2; j <= SeqEdges.Length(); j++) {
for(j=2; j<=SeqEdges.Length(); j++) {
for(Standard_Integer k=2; k<=SeqEdges.Length(); k++) {
if(IndUsedEdges.Contains(k)) continue;
TopoDS_Edge edge = TopoDS::Edge(SeqEdges.Value(k));
@ -95,7 +97,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
// first step: union lines and circles
TopLoc_Location Loc;
Standard_Real fp1,lp1,fp2,lp2;
for (j = 1; j < aChain.Length(); j++) {
for(j=1; j<aChain.Length(); j++) {
TopoDS_Edge edge1 = TopoDS::Edge(aChain.Value(j));
Handle(Geom_Curve) c3d1 = BRep_Tool::Curve(edge1,Loc,fp1,lp1);
if(c3d1.IsNull()) break;
@ -113,6 +115,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
c3d2 = tc->BasisCurve();
}
if( c3d1->IsKind(STANDARD_TYPE(Geom_Line)) && c3d2->IsKind(STANDARD_TYPE(Geom_Line)) ) {
// union lines
Handle(Geom_Line) L1 = Handle(Geom_Line)::DownCast(c3d1);
Handle(Geom_Line) L2 = Handle(Geom_Line)::DownCast(c3d2);
gp_Dir Dir1 = L1->Position().Direction();
@ -140,6 +143,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
j--;
}
if( c3d1->IsKind(STANDARD_TYPE(Geom_Circle)) && c3d2->IsKind(STANDARD_TYPE(Geom_Circle)) ) {
// union circles
Handle(Geom_Circle) C1 = Handle(Geom_Circle)::DownCast(c3d1);
Handle(Geom_Circle) C2 = Handle(Geom_Circle)::DownCast(c3d2);
gp_Pnt P01 = C1->Location();
@ -152,45 +156,13 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
gp_Pnt PV2 = BRep_Tool::Pnt(V2);
TopoDS_Vertex VM = sae.LastVertex(edge1);
gp_Pnt PVM = BRep_Tool::Pnt(VM);
Standard_Boolean IsClosed = Standard_False;
if(V1.IsSame(V2)) {
IsClosed = Standard_True;
TopExp_Explorer expe;
Standard_Boolean HasOtherEdges = Standard_False;
for(expe.Init(aFace, TopAbs_EDGE); expe.More(); expe.Next()) {
TopoDS_Edge Etmp = TopoDS::Edge(expe.Current());
if( Etmp.IsSame(edge1) || Etmp.IsSame(edge2) ) continue;
if( sae.FirstVertex(Etmp).IsSame(V1) ||
sae.LastVertex(Etmp).IsSame(V1) ) {
HasOtherEdges = Standard_True;
break;
}
}
if(HasOtherEdges) {
Standard_Real par = (fp2+lp2)/2.;
c3d2->D0(par,PV2);
}
else {
V1 = sae.FirstVertex(edge2);
PV1 = BRep_Tool::Pnt(V1);
V2 = VM;
VM = sae.LastVertex(edge2);
PVM = BRep_Tool::Pnt(VM);
Standard_Real par = (fp1+lp1)/2.;
c3d1->D0(par,PV2);
}
}
GC_MakeCircle MC(PV1,PVM,PV2);
Handle(Geom_Circle) C = MC.Value();
gp_Pnt P0 = C->Location();
gp_Dir D1(gp_Vec(P0,PV1));
gp_Dir D2(gp_Vec(P0,PV2));
Standard_Real fpar = C->XAxis().Direction().Angle(D1);
Standard_Real lpar;
if(IsClosed)
lpar = fpar+2*PI;
else
lpar = C->XAxis().Direction().Angle(D2);
Standard_Real lpar = C->XAxis().Direction().Angle(D2);
Handle(Geom_TrimmedCurve) tc = new Geom_TrimmedCurve(C,fpar,lpar);
TopoDS_Edge E;
B.MakeEdge (E,tc,Precision::Confusion());
@ -225,25 +197,6 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
B.MakeEdge (E,bc,Precision::Confusion());
B.Add (E,VF);
B.Add (E,VL);
//TopLoc_Location L;
//Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace,L);
//ShapeFix_Edge sfe;
//if(!L.IsIdentity()) {
// TopoDS_Edge aPCEdge = TopoDS::Edge(E.Moved(L.Inverted()));
// sfe.FixAddPCurve(aPCEdge,aFace,Standard_False);
// Handle(Geom2d_Curve) c2d;
// Standard_Real fp,lp;
// sae.PCurve(aPCEdge,aFace,c2d,fp,lp);
// B.UpdateEdge(E,c2d,aFace,0.);
// B.Range(E,aFace,fp,lp);
// c2d.Nullify();
// B.UpdateEdge(aPCEdge,c2d,aFace,0.);
// E = aPCEdge;
//}
//else {
// sfe.FixAddPCurve(E,aFace,Standard_False);
//}
//sfe.FixSameParameter(E);
aChain.SetValue(1,E);
}
@ -264,21 +217,26 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
myTolerance = Tol;
TopoDS_Shape aResult = myContext->Apply(Shape);
TopTools_IndexedMapOfShape ChangedFaces;
// processing each solid
TopExp_Explorer exps;
for(exps.Init(Shape, TopAbs_SOLID); exps.More(); exps.Next()) {
TopoDS_Solid aSolid = TopoDS::Solid(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(aSolid, TopAbs_FACE); exp.More(); exp.Next()) {
TopoDS_Face aFace = TopoDS::Face(myContext->Apply(exp.Current().Oriented(TopAbs_FORWARD)));
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()) {
@ -288,7 +246,7 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
TopTools_ListIteratorOfListOfShape anIter(aList);
for( ; anIter.More(); anIter.Next()) {
TopoDS_Face face = TopoDS::Face(anIter.Value());
TopoDS_Face face1 = TopoDS::Face(myContext->Apply(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);
@ -313,9 +271,9 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
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
myContext->Replace(SeqEdges(1),E);
aContext->Replace(SeqEdges(1),E);
for(Standard_Integer j=2; j<=SeqEdges.Length(); j++) {
myContext->Remove(SeqEdges(j));
aContext->Remove(SeqEdges(j));
}
TopoDS_Face tmpF = TopoDS::Face(exp.Current());
if( !ChangedFaces.Contains(tmpF) )
@ -328,29 +286,34 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
} // end processing each face
} // end processing each solid
// 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());
}
for(Standard_Integer i=1; i<=ChangedFaces.Extent(); i++) {
TopoDS_Face aFace = TopoDS::Face(myContext->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();
//Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
//sfw->SetContext(myContext);
//sfw->SetPrecision(myTolerance);
//sfw->SetMinTolerance(myTolerance);
//sfw->SetMaxTolerance(Max(1.,myTolerance*1000.));
//sfw->SetFace(aFace);
//for ( TopoDS_Iterator iter(aFace,Standard_False); iter.More(); iter.Next()) {
// TopoDS_Wire wire = TopoDS::Wire ( iter.Value() );
// sfw->Load(wire);
// sfw->FixReorder();
// sfw->FixShifted();
//}
}
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;