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// File: IntPolyh_Intersection_1.cxx
// Created: Mon Sep 26 15:40:16 2005
// Author: Igor FEOKTISTOV
// <ifv@ygrex.nnov.opencascade.com>
#include <IntPolyh_Intersection.ixx>
#include <IntPolyh_PMaillageAffinage.hxx>
#include <IntPolyh_MaillageAffinage.hxx>
#include <IntPolyh_ArrayOfCouples.hxx>
#include <IntPolyh_Couple.hxx>
Standard_Integer MYPRINT1 = 0;
//=======================================================================
//function : IntPolyh_Intersection
//purpose :
//=======================================================================
IntPolyh_Intersection::IntPolyh_Intersection(const Handle(Adaptor3d_HSurface)& S1,
const TColStd_Array1OfReal& Upars1,
const TColStd_Array1OfReal& Vpars1,
const Handle(Adaptor3d_HSurface)& S2,
const TColStd_Array1OfReal& Upars2,
const TColStd_Array1OfReal& Vpars2)
{
myNbSU1 = Upars1.Length();
myNbSV1 = Vpars1.Length();
myNbSU2 = Upars2.Length();
myNbSV2 = Vpars2.Length();
mySurf1 = S1;
mySurf2 = S2;
done = Standard_False;
TSectionLines.Init(1000);
TTangentZones.Init(10000);
Perform(Upars1, Vpars1, Upars2, Vpars2);
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
void IntPolyh_Intersection::Perform(const TColStd_Array1OfReal& Upars1,
const TColStd_Array1OfReal& Vpars1,
const TColStd_Array1OfReal& Upars2,
const TColStd_Array1OfReal& Vpars2) {
done = Standard_True;
Standard_Boolean startFromAdvanced = Standard_False;
Standard_Boolean isStdDone = Standard_False;
Standard_Boolean isAdvDone = Standard_False;
Standard_Integer nbCouplesStd = 0;
Standard_Integer nbCouplesAdv = 0;
IntPolyh_PMaillageAffinage aPMaillageStd = 0;
IntPolyh_PMaillageAffinage aPMaillageFF = 0;
IntPolyh_PMaillageAffinage aPMaillageFR = 0;
IntPolyh_PMaillageAffinage aPMaillageRF = 0;
IntPolyh_PMaillageAffinage aPMaillageRR = 0;
if(!startFromAdvanced) {
isStdDone = PerformStd(Upars1, Vpars1, Upars2, Vpars2,
aPMaillageStd,nbCouplesStd);
// default interference done well, use it
if(isStdDone && nbCouplesStd > 10) {
aPMaillageStd->StartPointsChain(TSectionLines, TTangentZones);
}
// default interference done, but too few interferences foud;
// use advanced interference
else if(isStdDone && nbCouplesStd <= 10) {
isAdvDone = PerformAdv(Upars1, Vpars1, Upars2, Vpars2,
aPMaillageFF,aPMaillageFR,aPMaillageRF,aPMaillageRR,nbCouplesAdv);
// advanced interference found
if(isAdvDone && nbCouplesAdv > 10) {
aPMaillageFF->StartPointsChain(TSectionLines,TTangentZones);
aPMaillageFR->StartPointsChain(TSectionLines,TTangentZones);
aPMaillageRF->StartPointsChain(TSectionLines,TTangentZones);
aPMaillageRR->StartPointsChain(TSectionLines,TTangentZones);
}
else {
// use result of default
if(nbCouplesStd > 0)
aPMaillageStd->StartPointsChain(TSectionLines, TTangentZones);
}
}
// default interference faild, use advanced
else {
// isAdvDone = PerformAdv(aPMaillageFF,aPMaillageFR,aPMaillageRF,aPMaillageRR,nbCouplesAdv);
// if(isAdvDone && nbCouplesAdv > 0) {cout << "4adv done, nbc: " << nbCouplesAdv << endl;
// aPMaillageFF->StartPointsChain(TSectionLines,TTangentZones);
// aPMaillageFR->StartPointsChain(TSectionLines,TTangentZones);
// aPMaillageRF->StartPointsChain(TSectionLines,TTangentZones);
// aPMaillageRR->StartPointsChain(TSectionLines,TTangentZones);
// }
}
}// start from default
else {
isAdvDone = PerformAdv(Upars1, Vpars1, Upars2, Vpars2,
aPMaillageFF,aPMaillageFR,aPMaillageRF,aPMaillageRR,nbCouplesAdv);
// advanced done, interference found; use it
if(isAdvDone) {
if(nbCouplesAdv > 0) {
aPMaillageFF->StartPointsChain(TSectionLines,TTangentZones);
aPMaillageFR->StartPointsChain(TSectionLines,TTangentZones);
aPMaillageRF->StartPointsChain(TSectionLines,TTangentZones);
aPMaillageRR->StartPointsChain(TSectionLines,TTangentZones);
}
else {
isStdDone = PerformStd(aPMaillageStd,nbCouplesStd);
if(isStdDone && nbCouplesStd > 0)
aPMaillageStd->StartPointsChain(TSectionLines, TTangentZones);
}
}
else {
isStdDone = PerformStd(Upars1, Vpars1, Upars2, Vpars2,
aPMaillageStd,nbCouplesStd);
if(isStdDone && nbCouplesStd > 0)
aPMaillageStd->StartPointsChain(TSectionLines, TTangentZones);
}
} // start from advanced
// accept result
nbsectionlines = TSectionLines.NbSectionLines();
nbtangentzones = TTangentZones.NbTangentZones();
// clean up
if(aPMaillageStd) delete aPMaillageStd;
if(aPMaillageFF) delete aPMaillageFF;
if(aPMaillageFR) delete aPMaillageFR;
if(aPMaillageRF) delete aPMaillageRF;
if(aPMaillageRR) delete aPMaillageRR;
// verify
if(!isStdDone && !isAdvDone)
done = Standard_False;
}
//=======================================================================
//function : PerformMaillage
//purpose : Computes MaillageAffinage
//=======================================================================
Standard_Boolean IntPolyh_Intersection::PerformMaillage(const Standard_Boolean isFirstFwd,
const Standard_Boolean isSecondFwd,
const TColStd_Array1OfReal& Upars1,
const TColStd_Array1OfReal& Vpars1,
const TColStd_Array1OfReal& Upars2,
const TColStd_Array1OfReal& Vpars2,
IntPolyh_PMaillageAffinage &theMaillageS)
{
theMaillageS = new IntPolyh_MaillageAffinage(mySurf1, Upars1.Length(), Vpars1.Length(),
mySurf2, Upars2.Length(), Vpars2.Length(),
MYPRINT1);
theMaillageS->FillArrayOfPnt(1, isFirstFwd, Upars1, Vpars1);
theMaillageS->FillArrayOfPnt(2, isSecondFwd, Upars2, Vpars2);
Standard_Real xx0,yy0,zz0,xx1,yy1,zz1;
theMaillageS->CommonBox(theMaillageS->GetBox(1), theMaillageS->GetBox(2),
xx0, yy0, zz0, xx1, yy1, zz1);
theMaillageS->FillArrayOfEdges(1);
theMaillageS->FillArrayOfEdges(2);
theMaillageS->FillArrayOfTriangles(1);
theMaillageS->FillArrayOfTriangles(2);
theMaillageS->LinkEdges2Triangles();
theMaillageS->TrianglesDeflectionsRefinementBSB();
Standard_Integer FinTTC = theMaillageS->TriangleCompare();
// if too many intersections, consider surfaces parallel (eap)
/*
if(FinTTC > 200 &&
(FinTTC >= theMaillageS->GetArrayOfTriangles(1).NbTriangles() ||
FinTTC >= theMaillageS->GetArrayOfTriangles(2).NbTriangles()) ) {
return Standard_False;
}
*/
//IFV test for parallel surf
if(FinTTC > 200) {
const Standard_Real eps = .996; //~ cos of 5deg.
IntPolyh_ArrayOfCouples& Couples = theMaillageS->GetArrayOfCouples();
Standard_Integer i, npara = 0;
for(i = 0; i < FinTTC; ++i) {
Standard_Real cosa = Abs(Couples[i].AngleValue());
if(cosa > eps) ++npara;
}
if(npara >= theMaillageS->GetArrayOfTriangles(1).NbTriangles() ||
npara >= theMaillageS->GetArrayOfTriangles(2).NbTriangles() ) {
return Standard_False;
}
}
return Standard_True;
}
//=======================================================================
//function : PerformMaillage
//purpose : Computes MaillageAffinage
//=======================================================================
Standard_Boolean IntPolyh_Intersection::PerformMaillage(const TColStd_Array1OfReal& Upars1,
const TColStd_Array1OfReal& Vpars1,
const TColStd_Array1OfReal& Upars2,
const TColStd_Array1OfReal& Vpars2,
IntPolyh_PMaillageAffinage &theMaillageS)
{
theMaillageS = new IntPolyh_MaillageAffinage(mySurf1, Upars1.Length(), Vpars1.Length(),
mySurf2, Upars2.Length(), Vpars2.Length(),
MYPRINT1);
theMaillageS->FillArrayOfPnt(1, Upars1, Vpars1);
theMaillageS->FillArrayOfPnt(2, Upars2, Vpars2);
Standard_Real xx0,yy0,zz0,xx1,yy1,zz1;
theMaillageS->CommonBox(theMaillageS->GetBox(1), theMaillageS->GetBox(2),
xx0, yy0, zz0, xx1, yy1, zz1);
theMaillageS->FillArrayOfEdges(1);
theMaillageS->FillArrayOfEdges(2);
theMaillageS->FillArrayOfTriangles(1);
theMaillageS->FillArrayOfTriangles(2);
theMaillageS->LinkEdges2Triangles();
theMaillageS->TrianglesDeflectionsRefinementBSB();
Standard_Integer FinTTC = theMaillageS->TriangleCompare();
if( FinTTC == 0 ) {
Standard_Boolean myZone = Standard_True;
theMaillageS->SetEnlargeZone( myZone );
theMaillageS->FillArrayOfPnt(1);
theMaillageS->FillArrayOfPnt(2);
theMaillageS->CommonBox(theMaillageS->GetBox(1), theMaillageS->GetBox(2),
xx0, yy0, zz0, xx1, yy1, zz1);
theMaillageS->FillArrayOfEdges(1);
theMaillageS->FillArrayOfEdges(2);
theMaillageS->FillArrayOfTriangles(1);
theMaillageS->FillArrayOfTriangles(2);
theMaillageS->LinkEdges2Triangles();
theMaillageS->TrianglesDeflectionsRefinementBSB();
FinTTC = theMaillageS->TriangleCompare();
myZone = Standard_False;
theMaillageS->SetEnlargeZone( myZone );
}
// if too many intersections, consider surfaces parallel (eap)
/*
if(FinTTC > 200 &&
(FinTTC >= theMaillageS->GetArrayOfTriangles(1).NbTriangles() ||
FinTTC >= theMaillageS->GetArrayOfTriangles(2).NbTriangles()) ) {
return Standard_False;
}
*/
//IFV test for parallel surf
if(FinTTC > 200) {
const Standard_Real eps = .996; //~ cos of 5deg.
IntPolyh_ArrayOfCouples& Couples = theMaillageS->GetArrayOfCouples();
Standard_Integer i, npara = 0;
for(i = 0; i < FinTTC; ++i) {
Standard_Real cosa = Abs(Couples[i].AngleValue());
if(cosa > eps) ++npara;
}
if(npara >= theMaillageS->GetArrayOfTriangles(1).NbTriangles() ||
npara >= theMaillageS->GetArrayOfTriangles(2).NbTriangles() ) {
return Standard_False;
}
}
return Standard_True;
}
//=======================================================================
//function : PerformAdv
//purpose :
//=======================================================================
Standard_Boolean IntPolyh_Intersection::PerformAdv(const TColStd_Array1OfReal& Upars1,
const TColStd_Array1OfReal& Vpars1,
const TColStd_Array1OfReal& Upars2,
const TColStd_Array1OfReal& Vpars2,
IntPolyh_PMaillageAffinage& MaillageFF,
IntPolyh_PMaillageAffinage& MaillageFR,
IntPolyh_PMaillageAffinage& MaillageRF,
IntPolyh_PMaillageAffinage& MaillageRR,
Standard_Integer& NbCouples)
{
Standard_Boolean isdone = Standard_True;
NbCouples = 0;
if(!PerformMaillage(Standard_True,Standard_False,
Upars1, Vpars1, Upars2, Vpars2,
MaillageFR) ||
!PerformMaillage(Standard_False,Standard_True,
Upars1, Vpars1, Upars2, Vpars2,
MaillageRF) ||
!PerformMaillage(Standard_True,Standard_True,
Upars1, Vpars1, Upars2, Vpars2,
MaillageFF) ||
!PerformMaillage(Standard_False,Standard_False,
Upars1, Vpars1, Upars2, Vpars2,
MaillageRR) )
isdone = Standard_False;
if(isdone) {
NbCouples = MaillageFF->GetArrayOfCouples().NbCouples() +
MaillageFR->GetArrayOfCouples().NbCouples() +
MaillageRF->GetArrayOfCouples().NbCouples() +
MaillageRR->GetArrayOfCouples().NbCouples();
if(NbCouples > 0)
MergeCouples(MaillageFF->GetArrayOfCouples(),MaillageFR->GetArrayOfCouples(),
MaillageRF->GetArrayOfCouples(),MaillageRR->GetArrayOfCouples());
}
return isdone;
}
//=======================================================================
//function : PerformStd
//purpose :
//=======================================================================
Standard_Boolean IntPolyh_Intersection::PerformStd(const TColStd_Array1OfReal& Upars1,
const TColStd_Array1OfReal& Vpars1,
const TColStd_Array1OfReal& Upars2,
const TColStd_Array1OfReal& Vpars2,
IntPolyh_PMaillageAffinage& MaillageS,
Standard_Integer& NbCouples)
{
Standard_Boolean isdone = PerformMaillage(Upars1, Vpars1, Upars2, Vpars2,
MaillageS);
NbCouples = (isdone) ? (MaillageS->GetArrayOfCouples().NbCouples()) : 0;
return isdone;
}
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