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// File: HLRTopoBRep_OutLiner.cxx
// Created: Thu Aug 4 09:53:26 1994
// Author: Christophe MARION
// <cma@ecolox>
#include <HLRTopoBRep_OutLiner.ixx>
#include <HLRTopoBRep_DSFiller.hxx>
#include <Contap_Contour.hxx>
#include <BRep_Builder.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Shell.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include <gp_Vec.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <TopExp.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <Extrema_ExtPC.hxx>
//=======================================================================
//function : OutLiner
//purpose :
//=======================================================================
HLRTopoBRep_OutLiner::HLRTopoBRep_OutLiner ()
{}
//=======================================================================
//function : OutLiner
//purpose :
//=======================================================================
HLRTopoBRep_OutLiner::HLRTopoBRep_OutLiner(const TopoDS_Shape& OriS) :
myOriginalShape(OriS)
{}
//=======================================================================
//function : OutLiner
//purpose :
//=======================================================================
HLRTopoBRep_OutLiner::HLRTopoBRep_OutLiner(const TopoDS_Shape& OriS,
const TopoDS_Shape& OutS) :
myOriginalShape(OriS),
myOutLinedShape(OutS)
{}
//=======================================================================
//function : Fill
//purpose :
//=======================================================================
void HLRTopoBRep_OutLiner::Fill(const HLRAlgo_Projector& P,
BRepTopAdaptor_MapOfShapeTool& MST,
const Standard_Integer nbIso)
{
if (!myOriginalShape.IsNull()) {
if (myOutLinedShape.IsNull()) {
gp_Vec Vecz (0., 0., 1.);
gp_Trsf Tr (P.Transformation ());
Tr.Invert ();
Vecz.Transform (Tr);
Contap_Contour FO;
if (P.Perspective ()) {
gp_Pnt Eye;
Eye.SetXYZ (P.Focus ()*Vecz.XYZ ());
FO.Init(Eye);
}
else {
gp_Dir DirZ(Vecz);
FO.Init(DirZ);
}
HLRTopoBRep_DSFiller::Insert(myOriginalShape,FO,myDS,MST,nbIso);
BuildShape(MST);
}
}
}
//=======================================================================
// Function : ProcessFace
// Purpose : Build a Face using myDS and add the new face to a shell
//=======================================================================
void HLRTopoBRep_OutLiner::ProcessFace(const TopoDS_Face& F,
TopoDS_Shape& S,
BRepTopAdaptor_MapOfShapeTool& MST)
{
BRep_Builder B;
TopExp_Explorer exE, exW;
TopTools_IndexedDataMapOfShapeListOfShape aVEMap;
TopExp::MapShapesAndAncestors(F, TopAbs_VERTEX, TopAbs_EDGE, aVEMap);
TopoDS_Shape NF;// = F;
//NF.Free(Standard_True);
//for (exE.Init(F,TopAbs_EDGE); exE.More(); exE.Next()) {
//if (myDS.EdgeHasSplE(TopoDS::Edge(exE.Current()))) {
//splitted = Standard_True;
//break;
//}
//}
//if (splitted) { // the face contains a splitted edge :
// Make a copy with the new Edges
NF = F.EmptyCopied ();
for (exW.Init(F,TopAbs_WIRE); exW.More(); exW.Next()) {
TopoDS_Wire W;
B.MakeWire(W);
for (exE.Init(exW.Current(),TopAbs_EDGE); exE.More(); exE.Next()) {
TopoDS_Edge E = TopoDS::Edge(exE.Current());
if (myDS.EdgeHasSplE(E)) {
TopTools_ListIteratorOfListOfShape itS;
for (itS.Initialize(myDS.EdgeSplE(E));
itS.More();
itS.Next()) {
TopoDS_Edge newE = TopoDS::Edge(itS.Value());
newE.Orientation(E.Orientation());
myDS.AddOldS(newE,E);
B.Add(W,newE);
}
}
else {
B.Add(W,E);
}
}
B.Add(NF,W); // add the new wire in the new face.
}
//}
myDS.AddIntL(F);
TopTools_ListOfShape& OutL = myDS.AddOutL(F);
if (myDS.FaceHasIntL(F)) { // get the InternalOutLines on face F
TopoDS_Wire W;
TopTools_ListIteratorOfListOfShape itE;
for(itE.Initialize(myDS.FaceIntL(F));
itE.More();
itE.Next()) {
TopoDS_Edge E = TopoDS::Edge(itE.Value());
E.Orientation(TopAbs_INTERNAL);
//Check, if outline edge coincides real edge
BRepAdaptor_Curve C(E);
Standard_Real par = 0.34*C.FirstParameter() + 0.66*C.LastParameter();
gp_Pnt P = C.Value(par);
TopoDS_Vertex V1, V2, aV1, aV2;
TopExp::Vertices(E, V1, V2);
Standard_Boolean SameEdge = Standard_False;
if(!V1.IsNull() && aVEMap.Contains(V1)) {
const TopTools_ListOfShape& aEList = aVEMap.FindFromKey(V1);
TopTools_ListIteratorOfListOfShape it(aEList);
for(; it.More(); it.Next()) {
const TopoDS_Edge& aE = TopoDS::Edge(it.Value());
TopExp::Vertices(aE, aV1, aV2);
if((V1.IsSame(aV1) && V2.IsSame(aV2)) || (V1.IsSame(aV2) && V2.IsSame(aV1))) {
BRepAdaptor_Curve aC(aE);
if((C.GetType() == GeomAbs_Line) &&
(aC.GetType() == GeomAbs_Line)) {
SameEdge = Standard_True;
break;
}
else {
//Try to project one point
Extrema_ExtPC anExt(P, aC);
if(anExt.IsDone()) {
Standard_Integer aNe = anExt.NbExt();
if(aNe > 0) {
Standard_Real dist = RealLast();
Standard_Integer ec;
for(ec = 1; ec <= aNe; ++ec) {
// dist = Min(dist, anExt.Value(ec));
dist = Min(dist, anExt.SquareDistance(ec));
}
// if(dist <= 1.e-7) {
if(dist <= 1.e-14) {
SameEdge = Standard_True;
break;
}
}
}
}
}
}
}
if(SameEdge) {
OutL.Append(E);
continue;
}
if (myDS.EdgeHasSplE(E)) {
TopTools_ListIteratorOfListOfShape itS;
for (itS.Initialize(myDS.EdgeSplE(E));
itS.More();
itS.Next()) {
TopoDS_Shape newE = itS.Value();
newE.Orientation(TopAbs_INTERNAL);
if (W.IsNull()) B.MakeWire(W);
myDS.AddOldS(newE,F);
B.Add(W,newE);
}
}
else {
if (W.IsNull()) B.MakeWire(W);
myDS.AddOldS(E,F);
B.Add(W,E);
}
}
if (!W.IsNull()) B.Add(NF,W); // add the new wire in the new face.
}
if (myDS.FaceHasIsoL(F)) { // get the IsoLines on face F
TopoDS_Wire W;
TopTools_ListIteratorOfListOfShape itE;
for(itE.Initialize(myDS.FaceIsoL(F));
itE.More();
itE.Next()) {
TopoDS_Edge E = TopoDS::Edge(itE.Value());
E.Orientation(TopAbs_INTERNAL);
if (myDS.EdgeHasSplE(E)) { // normaly IsoLines are never splitted.
TopTools_ListIteratorOfListOfShape itS;
for (itS.Initialize(myDS.EdgeSplE(E));
itS.More();
itS.Next()) {
TopoDS_Shape newE = itS.Value();
newE.Orientation(TopAbs_INTERNAL);
if (W.IsNull()) B.MakeWire(W);
myDS.AddOldS(newE,F);
B.Add(W,newE);
}
}
else {
if (W.IsNull()) B.MakeWire(W);
myDS.AddOldS(E,F);
B.Add(W,E);
}
}
if (!W.IsNull()) B.Add(NF,W); // add the new wire in the new face.
}
myDS.AddOldS(NF,F);
MST.Bind(NF, MST.ChangeFind(F));
//
B.Add(S,NF); // add the face in the shell.
}
//=======================================================================
//function : BuildShape
//purpose : Build the OutLinedShape
//=======================================================================
void HLRTopoBRep_OutLiner::BuildShape (BRepTopAdaptor_MapOfShapeTool& MST)
{
TopExp_Explorer exshell, exface, exedge;
BRep_Builder B;
B.MakeCompound(TopoDS::Compound(myOutLinedShape));
TopTools_MapOfShape ShapeMap;
for (exshell.Init (myOriginalShape, TopAbs_SHELL);
exshell.More ();
exshell.Next ()) { // faces in a shell (open or close)
TopoDS_Shell theShell;
B.MakeShell(theShell);
theShell.Closed(exshell.Current().Closed ());
for (exface.Init(exshell.Current(), TopAbs_FACE);
exface.More();
exface.Next()) {
if (ShapeMap.Add(exface.Current()))
ProcessFace(TopoDS::Face(exface.Current()),theShell,MST);
}
B.Add(myOutLinedShape,theShell);
}
for (exface.Init(myOriginalShape, TopAbs_FACE, TopAbs_SHELL);
exface.More();
exface.Next()) { // faces not in a shell
if (ShapeMap.Add(exface.Current()))
ProcessFace (TopoDS::Face(exface.Current()),myOutLinedShape,MST);
}
for (exedge.Init(myOriginalShape, TopAbs_EDGE, TopAbs_FACE);
exedge.More();
exedge.Next()) // edges not in a face
B.Add(myOutLinedShape,exedge.Current());
}
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