mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-03 17:56:21 +03:00
7f3408c8c8
Boolean Operation - avoid creation of INTERNAL solid from unclassified faces in Solid Builder algorithm. Instead warn the user that some of the faces have been unclassified and not used for solids creation. Adjustment of the test cases. Test cases for the issue.
806 lines
22 KiB
C++
806 lines
22 KiB
C++
// Created by: Peter KURNEV
|
|
// Copyright (c) 2010-2014 OPEN CASCADE SAS
|
|
// Copyright (c) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
|
|
// Copyright (c) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, CEDRAT,
|
|
// EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
|
|
//
|
|
// This file is part of Open CASCADE Technology software library.
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify it under
|
|
// the terms of the GNU Lesser General Public License version 2.1 as published
|
|
// by the Free Software Foundation, with special exception defined in the file
|
|
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
// distribution for complete text of the license and disclaimer of any warranty.
|
|
//
|
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
|
// commercial license or contractual agreement.
|
|
//
|
|
#include <BOPAlgo_BuilderSolid.hxx>
|
|
#include <BOPAlgo_ShellSplitter.hxx>
|
|
#include <BOPAlgo_Alerts.hxx>
|
|
#include <BOPAlgo_Tools.hxx>
|
|
#include <BOPTools_AlgoTools.hxx>
|
|
#include <BOPTools_AlgoTools3D.hxx>
|
|
#include <BOPTools_BoxBndTree.hxx>
|
|
#include <BOPTools_CoupleOfShape.hxx>
|
|
#include <BOPTools_Parallel.hxx>
|
|
#include <BRep_Builder.hxx>
|
|
#include <BRep_Tool.hxx>
|
|
#include <BRepBndLib.hxx>
|
|
#include <BRepClass3d_SolidClassifier.hxx>
|
|
#include <Geom2d_Curve.hxx>
|
|
#include <Geom_Curve.hxx>
|
|
#include <Geom_Surface.hxx>
|
|
#include <gp_Dir.hxx>
|
|
#include <gp_Pln.hxx>
|
|
#include <gp_Pnt.hxx>
|
|
#include <gp_Pnt2d.hxx>
|
|
#include <gp_Vec.hxx>
|
|
#include <IntTools_Context.hxx>
|
|
#include <NCollection_DataMap.hxx>
|
|
#include <NCollection_List.hxx>
|
|
#include <NCollection_UBTreeFiller.hxx>
|
|
#include <NCollection_Vector.hxx>
|
|
#include <TColStd_MapIntegerHasher.hxx>
|
|
#include <TopAbs.hxx>
|
|
#include <TopExp.hxx>
|
|
#include <TopExp_Explorer.hxx>
|
|
#include <TopoDS.hxx>
|
|
#include <TopoDS_Compound.hxx>
|
|
#include <TopoDS_Edge.hxx>
|
|
#include <TopoDS_Face.hxx>
|
|
#include <TopoDS_Iterator.hxx>
|
|
#include <TopoDS_Shape.hxx>
|
|
#include <TopoDS_Shell.hxx>
|
|
#include <TopoDS_Solid.hxx>
|
|
#include <TopoDS_Vertex.hxx>
|
|
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
|
|
#include <TopTools_IndexedDataMapOfShapeShape.hxx>
|
|
#include <TColStd_ListOfInteger.hxx>
|
|
#include <TopTools_ListOfShape.hxx>
|
|
#include <TopTools_MapOfOrientedShape.hxx>
|
|
#include <TopTools_MapOfShape.hxx>
|
|
|
|
//
|
|
static
|
|
Standard_Boolean IsGrowthShell(const TopoDS_Shape& ,
|
|
const TopTools_IndexedMapOfShape& );
|
|
static
|
|
Standard_Boolean IsHole(const TopoDS_Shape& ,
|
|
Handle(IntTools_Context)& );
|
|
static
|
|
Standard_Boolean IsInside(const TopoDS_Shape& ,
|
|
const TopoDS_Shape& ,
|
|
Handle(IntTools_Context)& );
|
|
static
|
|
void MakeInternalShells(const TopTools_IndexedMapOfShape& ,
|
|
TopTools_ListOfShape& );
|
|
|
|
//=======================================================================
|
|
//function :
|
|
//purpose :
|
|
//=======================================================================
|
|
BOPAlgo_BuilderSolid::BOPAlgo_BuilderSolid()
|
|
:
|
|
BOPAlgo_BuilderArea()
|
|
{
|
|
}
|
|
//=======================================================================
|
|
//function :
|
|
//purpose :
|
|
//=======================================================================
|
|
BOPAlgo_BuilderSolid::BOPAlgo_BuilderSolid
|
|
(const Handle(NCollection_BaseAllocator)& theAllocator)
|
|
:
|
|
BOPAlgo_BuilderArea(theAllocator)
|
|
{
|
|
}
|
|
//=======================================================================
|
|
//function : ~
|
|
//purpose :
|
|
//=======================================================================
|
|
BOPAlgo_BuilderSolid::~BOPAlgo_BuilderSolid()
|
|
{
|
|
}
|
|
//=======================================================================
|
|
//function : Perform
|
|
//purpose :
|
|
//=======================================================================
|
|
void BOPAlgo_BuilderSolid::Perform()
|
|
{
|
|
GetReport()->Clear();
|
|
//
|
|
if (myShapes.IsEmpty())
|
|
return;
|
|
|
|
if (myContext.IsNull()) {
|
|
myContext=new IntTools_Context;
|
|
}
|
|
|
|
myBoxes.Clear();
|
|
|
|
TopoDS_Compound aC;
|
|
BRep_Builder aBB;
|
|
TopTools_ListIteratorOfListOfShape aIt;
|
|
//
|
|
aBB.MakeCompound(aC);
|
|
aIt.Initialize(myShapes);
|
|
for(; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Shape& aF=aIt.Value();
|
|
aBB.Add(aC, aF);
|
|
}
|
|
//
|
|
UserBreak();
|
|
//
|
|
PerformShapesToAvoid();
|
|
if (HasErrors()) {
|
|
return;
|
|
}
|
|
//
|
|
UserBreak();
|
|
//
|
|
PerformLoops();
|
|
if (HasErrors()) {
|
|
return;
|
|
}
|
|
//
|
|
UserBreak();
|
|
//
|
|
PerformAreas();
|
|
if (HasErrors()) {
|
|
return;
|
|
}
|
|
//
|
|
UserBreak();
|
|
//
|
|
PerformInternalShapes();
|
|
if (HasErrors()) {
|
|
return;
|
|
}
|
|
}
|
|
//=======================================================================
|
|
//function :PerformShapesToAvoid
|
|
//purpose :
|
|
//=======================================================================
|
|
void BOPAlgo_BuilderSolid::PerformShapesToAvoid()
|
|
{
|
|
Standard_Boolean bFound;
|
|
Standard_Integer i, iCnt, aNbE, aNbF;
|
|
TopAbs_Orientation aOrE;
|
|
TopTools_IndexedDataMapOfShapeListOfShape aMEF;
|
|
TopTools_ListIteratorOfListOfShape aIt;
|
|
//
|
|
myShapesToAvoid.Clear();
|
|
//
|
|
iCnt=0;
|
|
for(;;) {
|
|
++iCnt;
|
|
bFound=Standard_False;
|
|
//
|
|
// 1. MEF
|
|
aMEF.Clear();
|
|
aIt.Initialize (myShapes);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Shape& aF=aIt.Value();
|
|
if (!myShapesToAvoid.Contains(aF)) {
|
|
TopExp::MapShapesAndAncestors(aF,
|
|
TopAbs_EDGE,
|
|
TopAbs_FACE,
|
|
aMEF);
|
|
}
|
|
}
|
|
aNbE=aMEF.Extent();
|
|
//
|
|
// 2. myFacesToAvoid
|
|
for (i=1; i<=aNbE; ++i) {
|
|
const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aMEF.FindKey(i)));
|
|
if (BRep_Tool::Degenerated(aE)) {
|
|
continue;
|
|
}
|
|
//
|
|
TopTools_ListOfShape& aLF=aMEF.ChangeFromKey(aE);
|
|
aNbF=aLF.Extent();
|
|
if (!aNbF) {
|
|
continue;
|
|
}
|
|
//
|
|
aOrE=aE.Orientation();
|
|
//
|
|
const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First()));
|
|
if (aNbF==1) {
|
|
if (aOrE==TopAbs_INTERNAL) {
|
|
continue;
|
|
}
|
|
bFound=Standard_True;
|
|
myShapesToAvoid.Add(aF1);
|
|
}
|
|
else if (aNbF==2) {
|
|
const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last()));
|
|
if (aF2.IsSame(aF1)) {
|
|
if (BRep_Tool::IsClosed(aE, aF1)) {
|
|
continue;
|
|
}
|
|
//
|
|
if (aOrE==TopAbs_INTERNAL) {
|
|
continue;
|
|
}
|
|
//
|
|
bFound=Standard_True;
|
|
myShapesToAvoid.Add(aF1);
|
|
myShapesToAvoid.Add(aF2);
|
|
}
|
|
}
|
|
}// for (i=1; i<=aNbE; ++i) {
|
|
//
|
|
if (!bFound) {
|
|
break;
|
|
}
|
|
//
|
|
}//for(;;) {
|
|
}
|
|
//=======================================================================
|
|
//function : PerformLoops
|
|
//purpose :
|
|
//=======================================================================
|
|
void BOPAlgo_BuilderSolid::PerformLoops()
|
|
{
|
|
Standard_Integer i, aNbSh;
|
|
TopTools_ListIteratorOfListOfShape aIt;
|
|
TopoDS_Iterator aItS;
|
|
Handle(NCollection_BaseAllocator) aAlr;
|
|
//
|
|
myLoops.Clear();
|
|
//
|
|
aAlr=
|
|
NCollection_BaseAllocator::CommonBaseAllocator();
|
|
BOPAlgo_ShellSplitter aSSp(aAlr);
|
|
//
|
|
// 1. Shells Usual
|
|
aIt.Initialize (myShapes);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Face& aF=*((TopoDS_Face*)&aIt.Value());
|
|
if (myContext->IsInfiniteFace(aF)) {
|
|
TopoDS_Shell aSh;
|
|
BRep_Builder aBB;
|
|
//
|
|
aBB.MakeShell(aSh);
|
|
aBB.Add(aSh, aF);
|
|
myLoops.Append(aSh);
|
|
continue;
|
|
}
|
|
//
|
|
if (!myShapesToAvoid.Contains(aF)) {
|
|
aSSp.AddStartElement(aF);
|
|
}
|
|
}
|
|
//
|
|
aSSp.SetRunParallel(myRunParallel);
|
|
aSSp.Perform();
|
|
if (aSSp.HasErrors()) {
|
|
// add warning status
|
|
{
|
|
TopoDS_Compound aFacesSp;
|
|
BRep_Builder().MakeCompound(aFacesSp);
|
|
TopTools_ListIteratorOfListOfShape aItLF(aSSp.StartElements());
|
|
for (; aItLF.More(); aItLF.Next()) {
|
|
BRep_Builder().Add(aFacesSp, aItLF.Value());
|
|
}
|
|
AddWarning (new BOPAlgo_AlertShellSplitterFailed (aFacesSp));
|
|
}
|
|
return;
|
|
}
|
|
//
|
|
const TopTools_ListOfShape& aLSh=aSSp.Shells();
|
|
aIt.Initialize (aLSh);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Shape& aSh=aIt.Value();
|
|
myLoops.Append(aSh);
|
|
}
|
|
//=================================================
|
|
//
|
|
// 2. Post Treatment
|
|
BRep_Builder aBB;
|
|
TopTools_MapOfOrientedShape AddedFacesMap;
|
|
TopTools_IndexedDataMapOfShapeListOfShape aEFMap;
|
|
TopTools_MapOfOrientedShape aMP;
|
|
//
|
|
// a. collect all edges that are in loops
|
|
aIt.Initialize (myLoops);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Shape& aS=aIt.Value();
|
|
aItS.Initialize(aS);
|
|
for (; aItS.More(); aItS.Next()) {
|
|
const TopoDS_Shape& aF=aItS.Value();
|
|
aMP.Add(aF);
|
|
}
|
|
}
|
|
//
|
|
// b. collect all edges that are to avoid
|
|
aNbSh = myShapesToAvoid.Extent();
|
|
for (i = 1; i <= aNbSh; ++i) {
|
|
const TopoDS_Shape& aF = myShapesToAvoid(i);
|
|
aMP.Add(aF);
|
|
}
|
|
//
|
|
// c. add all edges that are not processed to myShapesToAvoid
|
|
aIt.Initialize (myShapes);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Face& aF=*((TopoDS_Face*)&aIt.Value());
|
|
if (!myContext->IsInfiniteFace(aF)) {
|
|
if (!aMP.Contains(aF)) {
|
|
myShapesToAvoid.Add(aF);
|
|
}
|
|
}
|
|
}
|
|
//=================================================
|
|
//
|
|
// 3.Internal Shells
|
|
myLoopsInternal.Clear();
|
|
//
|
|
aEFMap.Clear();
|
|
AddedFacesMap.Clear();
|
|
//
|
|
aNbSh = myShapesToAvoid.Extent();
|
|
for (i = 1; i <= aNbSh; ++i) {
|
|
const TopoDS_Shape& aFF = myShapesToAvoid(i);
|
|
TopExp::MapShapesAndAncestors(aFF,
|
|
TopAbs_EDGE, TopAbs_FACE,
|
|
aEFMap);
|
|
}
|
|
//
|
|
for (i = 1; i <= aNbSh; ++i) {
|
|
const TopoDS_Shape& aFF = myShapesToAvoid(i);
|
|
if (!AddedFacesMap.Add(aFF)) {
|
|
continue;
|
|
}
|
|
//
|
|
// make a new shell
|
|
TopExp_Explorer aExp;
|
|
TopoDS_Shell aShell;
|
|
aBB.MakeShell(aShell);
|
|
aBB.Add(aShell, aFF);
|
|
//
|
|
aItS.Initialize(aShell);
|
|
for (; aItS.More(); aItS.Next()) {
|
|
const TopoDS_Face& aF = (*(TopoDS_Face*)(&aItS.Value()));
|
|
//
|
|
aExp.Init(aF, TopAbs_EDGE);
|
|
for (; aExp.More(); aExp.Next()) {
|
|
const TopoDS_Edge& aE = (*(TopoDS_Edge*)(&aExp.Current()));
|
|
const TopTools_ListOfShape& aLF=aEFMap.FindFromKey(aE);
|
|
aIt.Initialize(aLF);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Face& aFL=(*(TopoDS_Face*)(&aIt.Value()));
|
|
if (AddedFacesMap.Add(aFL)){
|
|
aBB.Add(aShell, aFL);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
aShell.Closed (BRep_Tool::IsClosed (aShell));
|
|
myLoopsInternal.Append(aShell);
|
|
}
|
|
}
|
|
//=======================================================================
|
|
//function : PerformAreas
|
|
//purpose :
|
|
//=======================================================================
|
|
void BOPAlgo_BuilderSolid::PerformAreas()
|
|
{
|
|
myAreas.Clear();
|
|
BRep_Builder aBB;
|
|
// The new solids
|
|
TopTools_ListOfShape aNewSolids;
|
|
// The hole shells which has to be classified relatively new solids
|
|
TopTools_IndexedMapOfShape aHoleShells;
|
|
// Map of the faces of the hole shells for quick check of the growths.
|
|
// If the analyzed shell contains any of the hole faces, it is considered as growth.
|
|
TopTools_IndexedMapOfShape aMHF;
|
|
|
|
// Analyze the shells
|
|
TopTools_ListIteratorOfListOfShape aItLL(myLoops);
|
|
for (; aItLL.More(); aItLL.Next())
|
|
{
|
|
const TopoDS_Shape& aShell = aItLL.Value();
|
|
|
|
Standard_Boolean bIsGrowth = IsGrowthShell(aShell, aMHF);
|
|
if (!bIsGrowth)
|
|
{
|
|
// Fast check did not give the result, run classification
|
|
bIsGrowth = !IsHole(aShell, myContext);
|
|
}
|
|
|
|
// Save the solid
|
|
if (bIsGrowth)
|
|
{
|
|
TopoDS_Solid aSolid;
|
|
aBB.MakeSolid(aSolid);
|
|
aBB.Add (aSolid, aShell);
|
|
aNewSolids.Append (aSolid);
|
|
}
|
|
else
|
|
{
|
|
aHoleShells.Add(aShell);
|
|
TopExp::MapShapes(aShell, TopAbs_FACE, aMHF);
|
|
}
|
|
}
|
|
|
|
if (aHoleShells.IsEmpty())
|
|
{
|
|
// No holes, stop the analysis
|
|
TopTools_ListIteratorOfListOfShape aItLS(aNewSolids);
|
|
for (; aItLS.More(); aItLS.Next())
|
|
{
|
|
const TopoDS_Shape& aSol = aItLS.Value();
|
|
myAreas.Append(aSol);
|
|
// Build box
|
|
Bnd_Box aBox;
|
|
BRepBndLib::Add(aSol, aBox);
|
|
myBoxes.Bind(aSol, aBox);
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Classify holes relatively solids
|
|
|
|
// Prepare tree filler with the boxes of the hole shells
|
|
BOPTools_BoxBndTree aBBTree;
|
|
NCollection_UBTreeFiller <Standard_Integer, Bnd_Box> aTreeFiller(aBBTree);
|
|
|
|
Standard_Integer i, aNbH = aHoleShells.Extent();
|
|
for (i = 1; i <= aNbH; ++i)
|
|
{
|
|
const TopoDS_Shape& aHShell = aHoleShells(i);
|
|
//
|
|
Bnd_Box aBox;
|
|
BRepBndLib::Add(aHShell, aBox);
|
|
aTreeFiller.Add(i, aBox);
|
|
|
|
myBoxes.Bind(aHShell, aBox);
|
|
}
|
|
|
|
// Shake TreeFiller
|
|
aTreeFiller.Fill();
|
|
|
|
// Find outer growth shell that is most close to each hole shell
|
|
TopTools_IndexedDataMapOfShapeShape aHoleSolidMap;
|
|
|
|
TopTools_ListIteratorOfListOfShape aItLS(aNewSolids);
|
|
for (; aItLS.More(); aItLS.Next())
|
|
{
|
|
const TopoDS_Shape& aSolid = aItLS.Value();
|
|
|
|
// Build box
|
|
Bnd_Box aBox;
|
|
BRepBndLib::Add(aSolid, aBox);
|
|
|
|
myBoxes.Bind(aSolid, aBox);
|
|
|
|
BOPTools_BoxBndTreeSelector aSelector;
|
|
aSelector.SetBox(aBox);
|
|
aBBTree.Select(aSelector);
|
|
|
|
const TColStd_ListOfInteger& aLI = aSelector.Indices();
|
|
TColStd_ListIteratorOfListOfInteger aItLI(aLI);
|
|
for (; aItLI.More(); aItLI.Next())
|
|
{
|
|
Standard_Integer k = aItLI.Value();
|
|
const TopoDS_Shape& aHole = aHoleShells(k);
|
|
// Check if it is inside
|
|
if (!IsInside(aHole, aSolid, myContext))
|
|
continue;
|
|
|
|
// Save the relation
|
|
TopoDS_Shape* pSolidWas = aHoleSolidMap.ChangeSeek(aHole);
|
|
if (pSolidWas)
|
|
{
|
|
if (IsInside(aSolid, *pSolidWas, myContext))
|
|
{
|
|
*pSolidWas = aSolid;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
aHoleSolidMap.Add(aHole, aSolid);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Make the back map from solids to holes
|
|
TopTools_IndexedDataMapOfShapeListOfShape aSolidHolesMap;
|
|
|
|
aNbH = aHoleSolidMap.Extent();
|
|
for (i = 1; i <= aNbH; ++i)
|
|
{
|
|
const TopoDS_Shape& aHole = aHoleSolidMap.FindKey(i);
|
|
const TopoDS_Shape& aSolid = aHoleSolidMap(i);
|
|
//
|
|
TopTools_ListOfShape* pLHoles = aSolidHolesMap.ChangeSeek(aSolid);
|
|
if (!pLHoles)
|
|
pLHoles = &aSolidHolesMap(aSolidHolesMap.Add(aSolid, TopTools_ListOfShape()));
|
|
pLHoles->Append(aHole);
|
|
}
|
|
|
|
// Add Holes to Solids and add them to myAreas
|
|
aItLS.Initialize(aNewSolids);
|
|
for ( ; aItLS.More(); aItLS.Next())
|
|
{
|
|
TopoDS_Solid& aSolid = *(TopoDS_Solid*)&aItLS.Value();
|
|
const TopTools_ListOfShape* pLHoles = aSolidHolesMap.Seek(aSolid);
|
|
if (pLHoles)
|
|
{
|
|
// update solid
|
|
TopTools_ListIteratorOfListOfShape aItLH(*pLHoles);
|
|
for (; aItLH.More(); aItLH.Next())
|
|
{
|
|
const TopoDS_Shape& aHole = aItLH.Value();
|
|
aBB.Add(aSolid, aHole);
|
|
}
|
|
|
|
// update classifier
|
|
myContext->SolidClassifier(aSolid).Load(aSolid);
|
|
}
|
|
|
|
myAreas.Append(aSolid);
|
|
}
|
|
|
|
// Add holes that outside the solids to myAreas
|
|
aNbH = aHoleShells.Extent();
|
|
for (i = 1; i <= aNbH; ++i)
|
|
{
|
|
const TopoDS_Shape& aHole = aHoleShells(i);
|
|
if (!aHoleSolidMap.Contains(aHole))
|
|
{
|
|
TopoDS_Solid aSolid;
|
|
aBB.MakeSolid(aSolid);
|
|
aBB.Add (aSolid, aHole);
|
|
//
|
|
myAreas.Append(aSolid);
|
|
// Make an infinite box for the hole
|
|
Bnd_Box aBox;
|
|
aBox.SetWhole();
|
|
myBoxes.Bind(aSolid, aBox);
|
|
}
|
|
|
|
myBoxes.UnBind(aHole);
|
|
}
|
|
}
|
|
//=======================================================================
|
|
//function : PerformInternalShapes
|
|
//purpose :
|
|
//=======================================================================
|
|
void BOPAlgo_BuilderSolid::PerformInternalShapes()
|
|
{
|
|
if (myAvoidInternalShapes)
|
|
// user-defined option to avoid internal parts is in force
|
|
return;
|
|
|
|
if (myLoopsInternal.IsEmpty())
|
|
// no internal parts
|
|
return;
|
|
|
|
// Get all faces to classify
|
|
TopTools_IndexedMapOfShape aMFs;
|
|
TopTools_ListIteratorOfListOfShape aItLS(myLoopsInternal);
|
|
for (; aItLS.More(); aItLS.Next())
|
|
{
|
|
const TopoDS_Shape& aShell = aItLS.Value();
|
|
TopoDS_Iterator aIt(aShell);
|
|
for (; aIt.More(); aIt.Next())
|
|
aMFs.Add(aIt.Value());
|
|
}
|
|
|
|
BRep_Builder aBB;
|
|
// Check existence of the growths solids
|
|
if (myAreas.IsEmpty())
|
|
{
|
|
// No areas.
|
|
// Just make solid of the faces
|
|
TopoDS_Solid aSolid;
|
|
aBB.MakeSolid(aSolid);
|
|
//
|
|
TopTools_ListOfShape aLSI;
|
|
MakeInternalShells(aMFs, aLSI);
|
|
//
|
|
aItLS.Initialize(aLSI);
|
|
for (; aItLS.More(); aItLS.Next())
|
|
aBB.Add(aSolid, aItLS.Value());
|
|
|
|
myAreas.Append(aSolid);
|
|
return;
|
|
}
|
|
|
|
// Classify faces relatively solids
|
|
|
|
// Prepare list of faces to classify
|
|
TopTools_ListOfShape aLFaces;
|
|
Standard_Integer i, aNbF = aMFs.Extent();
|
|
for (i = 1; i <= aNbF; ++i)
|
|
aLFaces.Append(aMFs(i));
|
|
|
|
// Map of solids with IN faces
|
|
TopTools_IndexedDataMapOfShapeListOfShape aMSLF;
|
|
|
|
// Perform classification
|
|
BOPAlgo_Tools::ClassifyFaces(aLFaces, myAreas, myRunParallel, myContext, aMSLF, myBoxes);
|
|
|
|
// Update Solids by internal Faces
|
|
|
|
TopTools_MapOfShape aMFDone;
|
|
|
|
Standard_Integer aNbS = aMSLF.Extent();
|
|
for (i = 1; i <= aNbS; ++i)
|
|
{
|
|
const TopoDS_Shape& aSolid = aMSLF.FindKey(i);
|
|
TopoDS_Shape *pSolid = (TopoDS_Shape*)&aSolid;
|
|
|
|
const TopTools_ListOfShape& aLF = aMSLF(i);
|
|
if (aLF.IsEmpty())
|
|
continue;
|
|
|
|
TopTools_IndexedMapOfShape aMF;
|
|
aItLS.Initialize(aLF);
|
|
for (; aItLS.More(); aItLS.Next())
|
|
{
|
|
const TopoDS_Shape& aF = aItLS.Value();
|
|
aMF.Add(aF);
|
|
aMFDone.Add(aF);
|
|
}
|
|
//
|
|
TopTools_ListOfShape aLSI;
|
|
MakeInternalShells(aMF, aLSI);
|
|
//
|
|
aItLS.Initialize(aLSI);
|
|
for (; aItLS.More(); aItLS.Next())
|
|
{
|
|
const TopoDS_Shape& aSI = aItLS.Value();
|
|
aBB.Add (*pSolid, aSI);
|
|
}
|
|
}
|
|
|
|
// Find all unclassified faces and warn the user about them.
|
|
// Do not put such faces into result as they will form not closed solid.
|
|
TopTools_IndexedMapOfShape aMFUnUsed;
|
|
|
|
for (i = 1; i <= aNbF; ++i)
|
|
{
|
|
const TopoDS_Shape& aF = aMFs(i);
|
|
if (!aMFDone.Contains(aF))
|
|
aMFUnUsed.Add(aF);
|
|
}
|
|
|
|
if (aMFUnUsed.Extent())
|
|
{
|
|
TopTools_ListOfShape aLSI;
|
|
MakeInternalShells(aMFUnUsed, aLSI);
|
|
|
|
TopoDS_Shape aWShape;
|
|
if (aLSI.Extent() == 1)
|
|
aWShape = aLSI.First();
|
|
else
|
|
{
|
|
aBB.MakeCompound(TopoDS::Compound(aWShape));
|
|
aItLS.Initialize(aLSI);
|
|
for (; aItLS.More(); aItLS.Next())
|
|
aBB.Add(aWShape, aItLS.Value());
|
|
}
|
|
|
|
AddWarning(new BOPAlgo_AlertSolidBuilderUnusedFaces(aWShape)); }
|
|
}
|
|
//=======================================================================
|
|
//function : MakeInternalShells
|
|
//purpose :
|
|
//=======================================================================
|
|
void MakeInternalShells(const TopTools_IndexedMapOfShape& theMF,
|
|
TopTools_ListOfShape& theShells)
|
|
{
|
|
Standard_Integer i, aNbF;
|
|
BRep_Builder aBB;
|
|
TopTools_ListIteratorOfListOfShape aItF;
|
|
TopTools_IndexedDataMapOfShapeListOfShape aMEF;
|
|
TopTools_MapOfShape aAddedFacesMap;
|
|
//
|
|
aNbF = theMF.Extent();
|
|
for (i = 1; i <= aNbF; ++i) {
|
|
TopoDS_Shape aF = theMF(i);
|
|
TopExp::MapShapesAndAncestors(aF,
|
|
TopAbs_EDGE, TopAbs_FACE,
|
|
aMEF);
|
|
}
|
|
//
|
|
for (i = 1; i <= aNbF; ++i) {
|
|
TopoDS_Shape aFF = theMF(i);
|
|
if (!aAddedFacesMap.Add(aFF)) {
|
|
continue;
|
|
}
|
|
//
|
|
// make a new shell
|
|
TopoDS_Shell aShell;
|
|
aBB.MakeShell(aShell);
|
|
aFF.Orientation(TopAbs_INTERNAL);
|
|
aBB.Add(aShell, aFF);
|
|
//
|
|
TopoDS_Iterator aItAddedF (aShell);
|
|
for (; aItAddedF.More(); aItAddedF.Next()) {
|
|
const TopoDS_Shape& aF =aItAddedF.Value();
|
|
//
|
|
TopExp_Explorer aEdgeExp(aF, TopAbs_EDGE);
|
|
for (; aEdgeExp.More(); aEdgeExp.Next()) {
|
|
const TopoDS_Shape& aE =aEdgeExp.Current();
|
|
const TopTools_ListOfShape& aLF=aMEF.FindFromKey(aE);
|
|
aItF.Initialize(aLF);
|
|
for (; aItF.More(); aItF.Next()) {
|
|
TopoDS_Shape aFL=aItF.Value();
|
|
if (aAddedFacesMap.Add(aFL)){
|
|
aFL.Orientation(TopAbs_INTERNAL);
|
|
aBB.Add(aShell, aFL);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
aShell.Closed (BRep_Tool::IsClosed (aShell));
|
|
theShells.Append(aShell);
|
|
}
|
|
}
|
|
//=======================================================================
|
|
//function : IsHole
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean IsHole(const TopoDS_Shape& theS2,
|
|
Handle(IntTools_Context)& theContext)
|
|
{
|
|
TopoDS_Solid *pS2=(TopoDS_Solid *)&theS2;
|
|
BRepClass3d_SolidClassifier& aClsf=theContext->SolidClassifier(*pS2);
|
|
//
|
|
aClsf.PerformInfinitePoint(::RealSmall());
|
|
//
|
|
return (aClsf.State()==TopAbs_IN);
|
|
}
|
|
//=======================================================================
|
|
//function : IsInside
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean IsInside(const TopoDS_Shape& theS1,
|
|
const TopoDS_Shape& theS2,
|
|
Handle(IntTools_Context)& theContext)
|
|
{
|
|
TopExp_Explorer aExp;
|
|
TopAbs_State aState;
|
|
//
|
|
TopoDS_Solid *pS2=(TopoDS_Solid *)&theS2;
|
|
//
|
|
aExp.Init(theS1, TopAbs_FACE);
|
|
if (!aExp.More()){
|
|
BRepClass3d_SolidClassifier& aClsf=theContext->SolidClassifier(*pS2);
|
|
aClsf.PerformInfinitePoint(::RealSmall());
|
|
aState=aClsf.State();
|
|
}
|
|
else {
|
|
TopTools_IndexedMapOfShape aBounds;
|
|
TopExp::MapShapes(*pS2, TopAbs_EDGE, aBounds);
|
|
const TopoDS_Face& aF = (*(TopoDS_Face*)(&aExp.Current()));
|
|
aState=BOPTools_AlgoTools::ComputeState(aF, *pS2,
|
|
Precision::Confusion(),
|
|
aBounds, theContext);
|
|
}
|
|
return (aState==TopAbs_IN);
|
|
}
|
|
//=======================================================================
|
|
//function : IsGrowthShell
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean IsGrowthShell(const TopoDS_Shape& theShell,
|
|
const TopTools_IndexedMapOfShape& theMHF)
|
|
{
|
|
if (theMHF.Extent())
|
|
{
|
|
TopoDS_Iterator aIt(theShell);
|
|
for(; aIt.More(); aIt.Next())
|
|
{
|
|
if (theMHF.Contains(aIt.Value()))
|
|
return Standard_True;
|
|
}
|
|
}
|
|
return Standard_False;
|
|
}
|