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// File: BRepLib_MakeWire_1.cxx
// Created: Wed May 20 07:30:03 1998
// Author: Didier PIFFAULT
// <dpf@motox.paris1.matra-dtv.fr>
#include <BRepLib_MakeWire.ixx>
#include <BRepLib.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopTools_MapOfOrientedShape.hxx>
#include <TopTools_MapIteratorOfMapOfShape.hxx>
#include <TopTools_MapIteratorOfMapOfOrientedShape.hxx>
#include <TopTools_DataMapOfShapeShape.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <BRep_Builder.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Compound.hxx>
#include <BRep_Tool.hxx>
#include <gp_Pnt.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
//=======================================================================
//function : Add
//purpose : Add the list of edges to the current wire
//=======================================================================
void BRepLib_MakeWire::Add(const TopTools_ListOfShape& L)
{
myError = BRepLib_WireDone;
if (!myShape.IsNull()) myShape.Closed(Standard_False);
if (!L.IsEmpty()) {
NotDone();
TopTools_MapOfShape mapLocale;
mapLocale.Assign(myVertices);
TopTools_DataMapOfShapeShape toCopy;
TopTools_ListOfShape toAdd, nlist, rlist;
BRep_Builder BB;
TopExp_Explorer exv;
TopTools_MapIteratorOfMapOfShape itMS;
TopTools_ListIteratorOfListOfShape itList(L);
for (;itList.More(); itList.Next()) {
const TopoDS_Edge& curEd=TopoDS::Edge(itList.Value());
if (!curEd.IsNull()) {
rlist.Clear();
nlist.Clear();
Standard_Boolean copEd=Standard_False;
if (myEdge.IsNull()) {
Add(curEd);
if (!VF.IsNull()) mapLocale.Add(VF);
if (!VL.IsNull()) mapLocale.Add(VL);
NotDone();
continue;
}
for (exv.Init(curEd, TopAbs_VERTEX); exv.More(); exv.Next()) {
const TopoDS_Vertex& edVer=TopoDS::Vertex(exv.Current());
rlist.Prepend(edVer);
nlist.Prepend(edVer);
if (!mapLocale.Contains(edVer)) {
#ifndef DEB
Standard_Boolean notYetFound = Standard_True;
#else
Standard_Boolean notYetFound;
#endif
Standard_Real gap=BRep_Tool::Tolerance(edVer);
gp_Pnt pVer=BRep_Tool::Pnt(edVer);
for (itMS.Initialize(mapLocale); itMS.More(); itMS.Next()) {
notYetFound=Standard_True;
const TopoDS_Vertex& refVer=TopoDS::Vertex(itMS.Key());
gap +=BRep_Tool::Tolerance(refVer);
if (pVer.Distance(BRep_Tool::Pnt(TopoDS::Vertex(refVer))) <= gap) {
nlist.RemoveFirst();
nlist.Prepend(refVer.Oriented(edVer.Orientation()));
copEd=Standard_True;
notYetFound=Standard_False;
break;
}
}
if (notYetFound) mapLocale.Add(edVer);
}
}
if (copEd) {
TopoDS_Shape aLocalShape = curEd.EmptyCopied();
TopoDS_Edge newEd=TopoDS::Edge(aLocalShape);
// TopoDS_Edge newEd=TopoDS::Edge(curEd.EmptyCopied());
BB.Transfert(curEd, newEd);
newEd.Closed(curEd.Closed());
TopTools_ListIteratorOfListOfShape itV(nlist);
for (; itV.More(); itV.Next()) {
BB.Add(newEd, itV.Value());
BB.Transfert(curEd, newEd, TopoDS::Vertex(rlist.First()), TopoDS::Vertex(itV.Value()));
rlist.RemoveFirst();
}
toAdd.Append(newEd);
}
else {
toAdd.Append(curEd);
}
}
}
if (!toAdd.IsEmpty()) {
TopoDS_Compound comp;
BB.MakeCompound(comp);
TopTools_MapIteratorOfMapOfOrientedShape itMOS;
TopTools_MapOfOrientedShape theEdges;
for (itList.Initialize(toAdd); itList.More(); itList.Next()) {
BB.Add(comp, itList.Value());
theEdges.Add(itList.Value());
}
TopTools_IndexedDataMapOfShapeListOfShape lesMeres;
TopExp::MapShapesAndAncestors(comp, TopAbs_VERTEX, TopAbs_EDGE, lesMeres);
TopoDS_Vertex vf, vl;
TopoDS_Shape theKey;
Standard_Boolean usedVertex;
#ifndef DEB
Standard_Boolean closedEdge = Standard_False;
#else
Standard_Boolean closedEdge;
#endif
Standard_Integer vvInd, lastInd;
do {
if (!VL.IsNull() && lesMeres.Contains(VL)) {
if (!VF.IsNull()) closedEdge=VF.IsSame(VL);
usedVertex=Standard_True;
for (itList.Initialize(lesMeres.FindFromKey(VL)); itList.More(); itList.Next()) {
if (theEdges.Contains(itList.Value())) {
usedVertex=Standard_False;
theEdges.Remove(itList.Value());
TopExp::Vertices(TopoDS::Edge(itList.Value()), vf,vl);
if (vf.IsSame(VL)) {
BB.Add(myShape, itList.Value());
myVertices.Add(vl);
VL=vl;
}
else {
if (closedEdge) {
BB.Add(myShape, itList.Value());
VF=vf;
}
else {
BB.Add(myShape, itList.Value().Reversed());
vf.Reverse();
VL=vf;
}
myVertices.Add(vf);
}
}
}
if (usedVertex) {
lastInd=lesMeres.Extent();
vvInd=lesMeres.FindIndex(VL);
if (vvInd != lastInd) {
theKey=lesMeres.FindKey(lastInd);
nlist=lesMeres.FindFromIndex(lastInd);
}
lesMeres.RemoveLast();
if (vvInd != lastInd) {
lesMeres.Substitute(vvInd, theKey, nlist);
}
}
}
else if (!VF.IsNull() && lesMeres.Contains(VF)) {
usedVertex=Standard_True;
for (itList.Initialize(lesMeres.FindFromKey(VF)); itList.More(); itList.Next()) {
if (theEdges.Contains(itList.Value())) {
usedVertex=Standard_False;
theEdges.Remove(itList.Value());
TopExp::Vertices(TopoDS::Edge(itList.Value()), vf,vl);
if (vl.IsSame(VF)) {
BB.Add(myShape, itList.Value());
myVertices.Add(vf);
VF=vf;
}
else {
BB.Add(myShape, itList.Value().Reversed());
vl.Reverse();
myVertices.Add(vl);
VF=vl;
}
}
}
if (usedVertex) {
lastInd=lesMeres.Extent();
vvInd=lesMeres.FindIndex(VF);
if (vvInd != lastInd) {
theKey=lesMeres.FindKey(lastInd);
nlist=lesMeres.FindFromIndex(lastInd);
}
lesMeres.RemoveLast();
if (vvInd != lastInd) {
lesMeres.Substitute(vvInd, theKey, nlist);
}
}
}
else {
if (theEdges.Extent()>0) {
Standard_Boolean noCandidat=Standard_True;
for (itMOS.Initialize(theEdges); itMOS.More(); itMOS.Next()) {
TopExp::Vertices(TopoDS::Edge(itMOS.Key()), vf,vl);
if (myVertices.Contains(vl)) {
if (myError==BRepLib_WireDone) myError = BRepLib_NonManifoldWire;
BB.Add(myShape, itMOS.Key());
myVertices.Add(vf);
VF=vf;
noCandidat=Standard_False;
break;
}
else if (myVertices.Contains(vf)) {
if (myError==BRepLib_WireDone) myError = BRepLib_NonManifoldWire;
BB.Add(myShape, itMOS.Key());
myVertices.Add(vl);
VL=vl;
noCandidat=Standard_False;
break;
}
}
if (noCandidat) {
theEdges.Clear();
// Some Edges are not connected to first edge and the diagnosis is as follows
// but the le "Maker" is Done() because otherwise it is not possible to return the constructed connected part...
myError=BRepLib_DisconnectedWire;
}
else theEdges.Remove(itMOS.Key());
}
}
} while (theEdges.Extent()>0);
}
}
if (!VF.IsNull() && !VL.IsNull() && VF.IsSame(VL))
myShape.Closed(Standard_True);
Done();
}
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