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occt/src/BOPAlgo/BOPAlgo_WireSplitter.cxx
abv d5f74e42d6 0024624: Lost word in license statement in source files 
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast
Wrong license statements corrected in several files.
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Obsolete documentation files removed from DrawResources.
2014-02-20 16:15:17 +04:00

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// Created by: Peter KURNEV
// Copyright (c) 1999-2012 OPEN CASCADE SAS
//
//
// 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_WireSplitter.ixx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Wire.hxx>
#include <BRep_Tool.hxx>
#include <BRep_Builder.hxx>
#include <BOPCol_ListOfShape.hxx>
#include <BOPCol_IndexedMapOfShape.hxx>
#include <BOPCol_MapOfShape.hxx>
#include <BOPCol_IndexedDataMapOfShapeListOfShape.hxx>
#include <BOPCol_TBB.hxx>
#include <BOPCol_NCVector.hxx>
#include <BOPTools.hxx>
//=======================================================================
//function :
//purpose :
//=======================================================================
BOPAlgo_WireSplitter::BOPAlgo_WireSplitter()
:
BOPAlgo_Algo(),
myWES(NULL),
myLCB(myAllocator)
{
}
//=======================================================================
//function :
//purpose :
//=======================================================================
BOPAlgo_WireSplitter::BOPAlgo_WireSplitter
(const Handle(NCollection_BaseAllocator)& theAllocator)
:
BOPAlgo_Algo(theAllocator),
myWES(NULL),
myLCB(myAllocator)
{
}
//=======================================================================
//function : ~
//purpose :
//=======================================================================
BOPAlgo_WireSplitter::~BOPAlgo_WireSplitter()
{
}
//=======================================================================
//function : SetWES
//purpose :
//=======================================================================
void BOPAlgo_WireSplitter::SetWES(const BOPAlgo_WireEdgeSet& theWES)
{
myWES=(BOPAlgo_WireEdgeSet*)&theWES;
}
//=======================================================================
//function : WES
//purpose :
//=======================================================================
BOPAlgo_WireEdgeSet& BOPAlgo_WireSplitter::WES()
{
return *myWES;
}
//=======================================================================
// function: CheckData
// purpose:
//=======================================================================
void BOPAlgo_WireSplitter::CheckData()
{
myErrorStatus=0;
if (!myWES) {
myErrorStatus=10;
return;
}
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
void BOPAlgo_WireSplitter::Perform()
{
myErrorStatus=0;
//
CheckData();
if (myErrorStatus) {
return;
}
//
MakeConnexityBlocks();
MakeWires();
}
//=======================================================================
//function : MakeConnexityBlocks
//purpose :
//=======================================================================
void BOPAlgo_WireSplitter::MakeConnexityBlocks()
{
Standard_Boolean bRegular, bClosed;
Standard_Integer i, j, aNbV, aNbVS, aNbVP, k;
TopoDS_Iterator aItE;
TopoDS_Shape aER;
BOPCol_ListIteratorOfListOfShape aIt;
BOPCol_MapIteratorOfMapOfShape aItM;
//
BOPCol_IndexedDataMapOfShapeListOfShape aMVE(100, myAllocator);
BOPCol_IndexedMapOfShape aMVP(100, myAllocator);
BOPCol_IndexedMapOfShape aMEC(100, myAllocator);
BOPCol_MapOfShape aMER(100, myAllocator);
BOPCol_MapOfShape aMEP(100, myAllocator);
BOPCol_IndexedMapOfShape aMVAdd(100, myAllocator);
BOPCol_MapOfShape aMVS(100, myAllocator);
//
myLCB.Clear();
//
const BOPCol_ListOfShape& aLSE=myWES->StartElements();
aIt.Initialize(aLSE);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aE=aIt.Value();
if (aMEP.Add(aE)) {
BOPTools::MapShapesAndAncestors(aE, TopAbs_VERTEX, TopAbs_EDGE, aMVE);
}
else {
aMER.Add(aE);
}
}
//
// 2
aNbV=aMVE.Extent();
for (i=1; i<=aNbV; ++i) {
aNbVS=aMVS.Extent();
if (aNbVS==aNbV) {
break;
}
//
const TopoDS_Shape& aV=aMVE.FindKey(i);
//
if (!aMVS.Add(aV)) {
continue;
}
// aMVS - globally processed vertices
//
//------------------------------------- goal: aMEC
aMEC.Clear(); // aMEC - edges of CB
aMVP.Clear(); // aMVP - vertices to process right now
aMVAdd.Clear(); // aMVAdd vertices to process on next step of while(1)
//
aMVP.Add(aV);
//
for(;;) {
aNbVP=aMVP.Extent();
for (k=1; k<=aNbVP; ++k) {
const TopoDS_Shape& aVP=aMVP(k);
const BOPCol_ListOfShape& aLE=aMVE.FindFromKey(aVP);
aIt.Initialize(aLE);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aE=aIt.Value();
if (aMEC.Add(aE)) {
aItE.Initialize(aE);
for (; aItE.More(); aItE.Next()) {
const TopoDS_Shape& aVE=aItE.Value();
if (aMVS.Add(aVE)) {
aMVAdd.Add(aVE);
}
}
}
}
}//for (; aItM.More(); aItM.Next()) {
//
aNbVP=aMVAdd.Extent();
if (!aNbVP) {
break; // from while(1)
}
//
aMVP.Clear();
//
for (k=1; k<=aNbVP; ++k) {
const TopoDS_Shape& aVE=aMVAdd(k);
aMVP.Add(aVE);
}
aMVAdd.Clear();
}// while(1) {
//-------------------------------------
BOPTools_ConnexityBlock aCB(myAllocator);
BOPCol_ListOfShape& aLEC=aCB.ChangeShapes();
BOPCol_IndexedDataMapOfShapeListOfShape aMVER(100, myAllocator);
//
bRegular=Standard_True;
Standard_Integer aNbCB = aMEC.Extent();
for (j = 1; j <= aNbCB; j++) {
aER = aMEC(j);
//
if (aMER.Contains(aER)) {
aER.Orientation(TopAbs_FORWARD);
aLEC.Append(aER);
aER.Orientation(TopAbs_REVERSED);
aLEC.Append(aER);
bRegular=Standard_False;
}
else {
aLEC.Append(aER);
}
//
if (bRegular) {
BOPTools::MapShapesAndAncestors(aER, TopAbs_VERTEX, TopAbs_EDGE, aMVER);
}
}
//
if (bRegular) {
Standard_Integer k, aNbVR, aNbER;
//
aNbVR=aMVER.Extent();
for (k=1; k<=aNbVR; ++k) {
const BOPCol_ListOfShape& aLER=aMVER(k);
aNbER=aLER.Extent();
if (aNbER==1) {
const TopoDS_Edge& aEx=TopoDS::Edge(aER);
bClosed=BRep_Tool::IsClosed(aEx, myWES->Face());
if (!bClosed) {
bRegular=!bRegular;
break;
}
}
if (aNbER>2) {
bRegular=!bRegular;
break;
}
}
}
//
aCB.SetRegular(bRegular);
myLCB.Append(aCB);
}
}
/////////////////////////////////////////////////////////////////////////
typedef BOPCol_NCVector<BOPTools_ConnexityBlock> \
BOPTools_VectorOfConnexityBlock;
//=======================================================================
//class : WireSplitterFunctor
//purpose :
//=======================================================================
class BOPAlgo_WireSplitterFunctor {
protected:
TopoDS_Face myFace;
BOPTools_VectorOfConnexityBlock* myPVCB;
//
public:
//
BOPAlgo_WireSplitterFunctor(const TopoDS_Face& aF,
BOPTools_VectorOfConnexityBlock& aVCB)
: myFace(aF), myPVCB(&aVCB) {
}
//
void operator()( const flexible_range<Standard_Size>& aBR ) const{
Standard_Size i, iBeg, iEnd;
//
BOPTools_VectorOfConnexityBlock& aVCB=*myPVCB;
//
iBeg=aBR.begin();
iEnd=aBR.end();
for(i=iBeg; i!=iEnd; ++i) {
BOPTools_ConnexityBlock& aCB=aVCB((Standard_Integer)i);
//
BOPAlgo_WireSplitter::SplitBlock(myFace, aCB);
}
}
};
//=======================================================================
//class : BOPAlgo_WireSplitterCnt
//purpose :
//=======================================================================
class BOPAlgo_WireSplitterCnt {
public:
//-------------------------------
// Perform
Standard_EXPORT
static void Perform(const Standard_Boolean bRunParallel,
const TopoDS_Face& aF,
BOPTools_VectorOfConnexityBlock& aVCB) {
//
BOPAlgo_WireSplitterFunctor aWSF(aF, aVCB);
Standard_Size aNbVCB=aVCB.Extent();
//
if (bRunParallel) {
flexible_for(flexible_range<Standard_Size>(0,aNbVCB), aWSF);
}
else {
aWSF.operator()(flexible_range<Standard_Size>(0,aNbVCB));
}
}
//
};
//=======================================================================
//function : MakeWires
//purpose :
//=======================================================================
void BOPAlgo_WireSplitter::MakeWires()
{
Standard_Boolean bIsRegular;
Standard_Integer aNbVCB, k;
TopoDS_Wire aW;
BOPTools_ListIteratorOfListOfConnexityBlock aItCB;
BOPCol_ListIteratorOfListOfShape aIt;
BOPTools_VectorOfConnexityBlock aVCB;
//
aItCB.Initialize(myLCB);
for (; aItCB.More(); aItCB.Next()) {
BOPTools_ConnexityBlock& aCB=aItCB.ChangeValue();
bIsRegular=aCB.IsRegular();
if (bIsRegular) {
BOPCol_ListOfShape& aLE=aCB.ChangeShapes();
BOPAlgo_WireSplitter::MakeWire(aLE, aW);
myWES->AddShape(aW);
}
else {
aVCB.Append(aCB);
}
}
//
aNbVCB=aVCB.Extent();
const TopoDS_Face& aF=myWES->Face();
//===================================================
BOPAlgo_WireSplitterCnt::Perform(myRunParallel, aF, aVCB);
//===================================================
for (k=0; k<aNbVCB; ++k) {
const BOPTools_ConnexityBlock& aCB=aVCB(k);
const BOPCol_ListOfShape& aLW=aCB.Loops();
aIt.Initialize(aLW);
for (; aIt.More(); aIt.Next()) {
const TopoDS_Shape& aWx=aIt.Value();
myWES->AddShape(aWx);
}
}
}
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