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#include <BOPTools_RoughShapeIntersector.ixx>
#include <TopExp_Explorer.hxx>
#include <TColStd_MapOfInteger.hxx>
#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <TColStd_Array1OfListOfInteger.hxx>
#include <BooleanOperations_ShapesDataStructure.hxx>
#include <Bnd_Box.hxx>
static Standard_Integer TypeToIndex(const TopAbs_ShapeEnum& theType);
static Bnd_Box GetBoxEnlargedBySubShape(const Standard_Integer theIndex,
const BooleanOperations_PShapesDataStructure& PDS);
// =============================================================================================
// function: Constructor
// =============================================================================================
BOPTools_RoughShapeIntersector::BOPTools_RoughShapeIntersector(const BooleanOperations_PShapesDataStructure& PDS)
:
myIsDone(Standard_False)
{
myPDS = PDS;
}
// =============================================================================================
// function: Perform
// =============================================================================================
void BOPTools_RoughShapeIntersector::Perform()
{
myIsDone = Standard_True;
Prepare();
// check flag myIsDone after Prepare() function
if(!myIsDone)
return;
TColStd_ListOfInteger thelist;
TColStd_Array1OfListOfInteger aSortedByTypeShapes1(TypeToIndex(TopAbs_COMPOUND), TypeToIndex(TopAbs_VERTEX));
aSortedByTypeShapes1.Init(thelist);
TColStd_ListOfInteger thelist1;
TColStd_Array1OfListOfInteger aSortedByTypeShapes2(TypeToIndex(TopAbs_COMPOUND), TypeToIndex(TopAbs_VERTEX));
aSortedByTypeShapes2.Init(thelist1);
Standard_Integer k = 0;
for(k = myTableOfStatus->LowerRow(); k <= myTableOfStatus->UpperRow(); k++) {
aSortedByTypeShapes1(TypeToIndex(myPDS->GetShapeType(k))).Append(k);
}
for(k = myTableOfStatus->LowerCol(); k <= myTableOfStatus->UpperCol(); k++) {
aSortedByTypeShapes2(TypeToIndex(myPDS->GetShapeType(k))).Append(k);
}
//
Standard_Integer aStartIndex = TypeToIndex(TopAbs_COMPOUND);
Standard_Integer anEndIndex = TypeToIndex(TopAbs_VERTEX);
for(Standard_Integer index1 = aStartIndex; index1 <= anEndIndex; index1++) {
//
if(aSortedByTypeShapes1(index1).IsEmpty())
continue;
for(Standard_Integer index2 = aStartIndex; index2 <= anEndIndex; index2++) {
if(aSortedByTypeShapes2(index2).IsEmpty())
continue;
TColStd_ListIteratorOfListOfInteger anIt1;
TColStd_ListIteratorOfListOfInteger anIt2;
for(anIt1.Initialize(aSortedByTypeShapes1.Value(index1)); anIt1.More(); anIt1.Next()) {
for(anIt2.Initialize(aSortedByTypeShapes2.Value(index2)); anIt2.More(); anIt2.Next()) {
//
BOPTools_IntersectionStatus aStatus = myTableOfStatus->Value(anIt1.Value(), anIt2.Value());
if(aStatus != BOPTools_UNKNOWN && aStatus != BOPTools_BOUNDINGBOXOFSUBSHAPESINTERSECTED)
continue;
const Bnd_Box& B1 = myBoundingBoxes->Value(anIt1.Value());
const Bnd_Box& B2 = myBoundingBoxes->Value(anIt2.Value());
//
BOPTools_IntersectionStatus aNewValue = BOPTools_BOUNDINGBOXINTERSECTED;
if(B1.IsOut(B2)) {
aNewValue = BOPTools_NONINTERSECTED;
//
PropagateForSuccessors1(anIt1.Value(), anIt2.Value(), aNewValue);
//
}
else {
aNewValue = BOPTools_BOUNDINGBOXINTERSECTED;
const Bnd_Box& BB1 = myPDS->GetBoundingBox(anIt1.Value());
const Bnd_Box& BB2 = myPDS->GetBoundingBox(anIt2.Value());
if(BB1.IsOut(BB2)) {
aNewValue = BOPTools_BOUNDINGBOXOFSUBSHAPESINTERSECTED;
}
}
// It is important to place this line after Propagation
myTableOfStatus->ChangeValue(anIt1.Value(), anIt2.Value()) = aNewValue;
}
}
}
}
}
// =============================================================================================
// function: TableOfStatus
// =============================================================================================
const Handle(BOPTools_HArray2OfIntersectionStatus)& BOPTools_RoughShapeIntersector::TableOfStatus() const
{
return myTableOfStatus;
}
// =============================================================================================
// function: Prepare
// =============================================================================================
void BOPTools_RoughShapeIntersector::Prepare()
{
myIsDone = Standard_False;
if(!myTableOfStatus.IsNull() &&
(myPDS != NULL) &&
(myTableOfStatus->LowerRow() == 1) &&
(myTableOfStatus->UpperRow() == myPDS->NumberOfShapesOfTheObject()) &&
(myTableOfStatus->LowerCol() == myPDS->NumberOfShapesOfTheObject() + 1) &&
(myTableOfStatus->UpperCol() == myPDS->NumberOfShapesOfTheObject() + myPDS->NumberOfShapesOfTheTool())) {
myIsDone = Standard_True;
}
else {
if(myPDS != NULL) {
Standard_Integer firstlowerindex = 1;
Standard_Integer firstupperindex = myPDS->NumberOfShapesOfTheObject();
Standard_Integer secondlowerindex = myPDS->NumberOfShapesOfTheObject() + 1;
Standard_Integer secondupperindex = myPDS->NumberOfShapesOfTheTool() + myPDS->NumberOfShapesOfTheObject();
myTableOfStatus = new BOPTools_HArray2OfIntersectionStatus(firstlowerindex, firstupperindex,
secondlowerindex, secondupperindex);
myIsDone = Standard_True;
}
}
if(!myIsDone)
return;
myTableOfStatus->Init(BOPTools_UNKNOWN);
//
myBoundingBoxes = new Bnd_HArray1OfBox(1, myPDS->NumberOfSourceShapes());
for(Standard_Integer i = 1; i <= myPDS->NumberOfSourceShapes(); i++) {
const Bnd_Box& aBox = GetBoxEnlargedBySubShape(i, myPDS);
myBoundingBoxes->SetValue(i, aBox);
}
}
// =============================================================================================
// function: IsDone
// =============================================================================================
Standard_Boolean BOPTools_RoughShapeIntersector::IsDone() const
{
return myIsDone;
}
// =============================================================================================
// function: PropagateForSuccessors1
// =============================================================================================
void BOPTools_RoughShapeIntersector::PropagateForSuccessors1(const Standard_Integer AncestorsIndex1,
const Standard_Integer AncestorsIndex2,
const BOPTools_IntersectionStatus theStatus)
{
if(myTableOfStatus->Value(AncestorsIndex1, AncestorsIndex2) != BOPTools_UNKNOWN)
return;
myTableOfStatus->ChangeValue(AncestorsIndex1, AncestorsIndex2) = theStatus;
PropagateForSuccessors2(AncestorsIndex1, AncestorsIndex2, theStatus);
Standard_Integer i = 1;
for(i = 1; i <= myPDS->NumberOfSuccessors(AncestorsIndex1); i++) {
Standard_Integer asuccessor1 = myPDS->GetSuccessor(AncestorsIndex1, i);
PropagateForSuccessors1(asuccessor1, AncestorsIndex2, theStatus);
}
}
// =============================================================================================
// function: PropagateForSuccessors2
// =============================================================================================
void BOPTools_RoughShapeIntersector::PropagateForSuccessors2(const Standard_Integer AncestorsIndex1,
const Standard_Integer AncestorsIndex2,
const BOPTools_IntersectionStatus theStatus)
{
for(Standard_Integer j = 1; j <= myPDS->NumberOfSuccessors(AncestorsIndex2); j++) {
Standard_Integer asuccessor2 = myPDS->GetSuccessor(AncestorsIndex2, j);
if(myTableOfStatus->Value(AncestorsIndex1, asuccessor2) == BOPTools_UNKNOWN) {
myTableOfStatus->ChangeValue(AncestorsIndex1, asuccessor2) = theStatus;
PropagateForSuccessors2(AncestorsIndex1, asuccessor2, theStatus);
}
}
}
// =============================================================================================
// function: TypeToIndex
// =============================================================================================
Standard_Integer TypeToIndex(const TopAbs_ShapeEnum& theType) {
return (Standard_Integer) theType;
}
// =============================================================================================
// function: GetBoxEnlargedBySubShape
// =============================================================================================
Bnd_Box GetBoxEnlargedBySubShape(const Standard_Integer theIndex,
const BooleanOperations_PShapesDataStructure& PDS) {
Bnd_Box aBox = PDS->GetBoundingBox(theIndex);
for(Standard_Integer i=1; i<= PDS->NumberOfSuccessors(theIndex); i++) {
Standard_Integer asuccessorindex = PDS->GetSuccessor(theIndex, i);
aBox.Add(GetBoxEnlargedBySubShape(asuccessorindex, PDS));
}
return aBox;
}
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