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// File: ApproxInt_ImpPrmSvSurfaces.gxx
// Created: Wed Mar 17 12:42:28 1993
// Author: Laurent BUCHARD
// <lbr@topsn3>
#include <TColStd_Array1OfReal.hxx>
#include <math_FunctionSetRoot.hxx>
#include <StdFail_NotDone.hxx>
#include <GeomAbs_SurfaceType.hxx>
#include <Precision.hxx>
#define ComputeParametersOnImplicitSurface(MyISurf,P,u,v) MyISurf.Parameters(P,u,v)
#define Debug(expr) cout<<" expr :"<<expr;
#define MyISurf MyZerImpFunc.ISurface()
#define MyPSurf MyZerImpFunc.PSurface()
//--------------------------------------------------------------------------------
ApproxInt_ImpPrmSvSurfaces::ApproxInt_ImpPrmSvSurfaces( const TheISurface& ISurf
,const ThePSurface& PSurf):
MyHasBeenComputed(Standard_False),
MyHasBeenComputedbis(Standard_False),
MyImplicitFirst(Standard_True),
MyZerImpFunc(PSurf,ISurf)
{
}
//--------------------------------------------------------------------------------
ApproxInt_ImpPrmSvSurfaces::ApproxInt_ImpPrmSvSurfaces( const ThePSurface& PSurf
,const TheISurface& ISurf):
MyHasBeenComputed(Standard_False),
MyHasBeenComputedbis(Standard_False),
MyImplicitFirst(Standard_False),
MyZerImpFunc(PSurf,ISurf)
{
}
//--------------------------------------------------------------------------------
void ApproxInt_ImpPrmSvSurfaces::Pnt(const Standard_Real u1,
const Standard_Real v1,
const Standard_Real u2,
const Standard_Real v2,
gp_Pnt& P) {
gp_Pnt aP;
gp_Vec aT;
gp_Vec2d aTS1,aTS2;
Standard_Real tu1=u1;
Standard_Real tu2=u2;
Standard_Real tv1=v1;
Standard_Real tv2=v2;
this->Compute(tu1,tv1,tu2,tv2,aP,aT,aTS1,aTS2);
P=MyPnt;
}
//--------------------------------------------------------------------------------
Standard_Boolean ApproxInt_ImpPrmSvSurfaces::Tangency(const Standard_Real u1,
const Standard_Real v1,
const Standard_Real u2,
const Standard_Real v2,
gp_Vec& T) {
gp_Pnt aP;
gp_Vec aT;
gp_Vec2d aTS1,aTS2;
Standard_Real tu1=u1;
Standard_Real tu2=u2;
Standard_Real tv1=v1;
Standard_Real tv2=v2;
Standard_Boolean t=this->Compute(tu1,tv1,tu2,tv2,aP,aT,aTS1,aTS2);
T=MyTg;
return(t);
}
//--------------------------------------------------------------------------------
Standard_Boolean ApproxInt_ImpPrmSvSurfaces::TangencyOnSurf1(const Standard_Real u1,
const Standard_Real v1,
const Standard_Real u2,
const Standard_Real v2,
gp_Vec2d& T) {
gp_Pnt aP;
gp_Vec aT;
gp_Vec2d aTS1,aTS2;
Standard_Real tu1=u1;
Standard_Real tu2=u2;
Standard_Real tv1=v1;
Standard_Real tv2=v2;
Standard_Boolean t=this->Compute(tu1,tv1,tu2,tv2,aP,aT,aTS1,aTS2);
T=MyTguv1;
return(t);
}
//--------------------------------------------------------------------------------
Standard_Boolean ApproxInt_ImpPrmSvSurfaces::TangencyOnSurf2(const Standard_Real u1,
const Standard_Real v1,
const Standard_Real u2,
const Standard_Real v2,
gp_Vec2d& T) {
gp_Pnt aP;
gp_Vec aT;
gp_Vec2d aTS1,aTS2;
Standard_Real tu1=u1;
Standard_Real tu2=u2;
Standard_Real tv1=v1;
Standard_Real tv2=v2;
Standard_Boolean t=this->Compute(tu1,tv1,tu2,tv2,aP,aT,aTS1,aTS2);
T=MyTguv2;
return(t);
}
//--------------------------------------------------------------------------------
Standard_Boolean ApproxInt_ImpPrmSvSurfaces::Compute( Standard_Real& u1
,Standard_Real& v1
,Standard_Real& u2
,Standard_Real& v2
,gp_Pnt& P
,gp_Vec& Tg
,gp_Vec2d& Tguv1
,gp_Vec2d& Tguv2) {
Standard_Real tu1=u1;
Standard_Real tu2=u2;
Standard_Real tv1=v1;
Standard_Real tv2=v2;
if(MyHasBeenComputed) {
if( (MyParOnS1.X()==u1)&&(MyParOnS1.Y()==v1)
&&(MyParOnS2.X()==u2)&&(MyParOnS2.Y()==v2)) {
return(MyIsTangent);
}
else if(MyHasBeenComputedbis == Standard_False) {
MyTgbis = MyTg;
MyTguv1bis = MyTguv1;
MyTguv2bis = MyTguv2;
MyPntbis = MyPnt;
MyParOnS1bis = MyParOnS1;
MyParOnS2bis = MyParOnS2;
MyIsTangentbis = MyIsTangent;
MyHasBeenComputedbis = MyHasBeenComputed;
}
}
if(MyHasBeenComputedbis) {
if( (MyParOnS1bis.X()==u1)&&(MyParOnS1bis.Y()==v1)
&&(MyParOnS2bis.X()==u2)&&(MyParOnS2bis.Y()==v2)) {
gp_Vec TV(MyTg);
gp_Vec2d TV1(MyTguv1);
gp_Vec2d TV2(MyTguv2);
gp_Pnt TP(MyPnt);
gp_Pnt2d TP1(MyParOnS1);
gp_Pnt2d TP2(MyParOnS2);
Standard_Boolean TB=MyIsTangent;
MyTg = MyTgbis;
MyTguv1 = MyTguv1bis;
MyTguv2 = MyTguv2bis;
MyPnt = MyPntbis;
MyParOnS1 = MyParOnS1bis;
MyParOnS2 = MyParOnS2bis;
MyIsTangent = MyIsTangentbis;
MyTgbis = TV;
MyTguv1bis = TV1;
MyTguv2bis = TV2;
MyPntbis = TP;
MyParOnS1bis = TP1;
MyParOnS2bis = TP2;
MyIsTangentbis = TB;
return(MyIsTangent);
}
}
static math_Vector BornInf(1,2),BornSup(1,2),F(1,1),X(1,2),Tolerance(1,2);
static math_Matrix D(1, 1, 1, 2);
Standard_Real binfu,bsupu,binfv,bsupv;
binfu = ThePSurfaceTool::FirstUParameter(MyPSurf);
binfv = ThePSurfaceTool::FirstVParameter(MyPSurf);
bsupu = ThePSurfaceTool::LastUParameter(MyPSurf);
bsupv = ThePSurfaceTool::LastVParameter(MyPSurf);
BornInf(1) = binfu; BornSup(1) = bsupu;
BornInf(2) = binfv; BornSup(2) = bsupv;
//--- ThePSurfaceTool::GetResolution(MyPSurf,Tolerance(1),Tolerance(2));
Tolerance(1) = 1.0e-8; Tolerance(2) = 1.0e-8;
Standard_Real TranslationU=0.0;
Standard_Real TranslationV=0.0;
math_FunctionSetRoot Rsnld(MyZerImpFunc);
Rsnld.SetTolerance(Tolerance);
if(MyImplicitFirst) {
if(u2<binfu-0.0000000001) {
if(ThePSurfaceTool::IsUPeriodic(MyPSurf)) {
Standard_Real d = ThePSurfaceTool::UPeriod(MyPSurf);
do { TranslationU+=d; } while(u2+TranslationU < binfu);
}
else {
MyIsTangent=MyIsTangentbis=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
else if(u2>bsupu+0.0000000001) {
if(ThePSurfaceTool::IsUPeriodic(MyPSurf)) {
Standard_Real d = ThePSurfaceTool::UPeriod(MyPSurf);
do { TranslationU-=d; } while(u2+TranslationU > bsupu);
}
else {
MyIsTangent=MyIsTangentbis=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
if(v2<binfv-0.0000000001) {
if(ThePSurfaceTool::IsVPeriodic(MyPSurf)) {
Standard_Real d = ThePSurfaceTool::VPeriod(MyPSurf);
do { TranslationV+=d; } while(v2+TranslationV < binfv);
}
else {
MyIsTangent=MyIsTangentbis=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
else if(v2>bsupv+0.0000000001) {
if(ThePSurfaceTool::IsVPeriodic(MyPSurf)) {
Standard_Real d = ThePSurfaceTool::VPeriod(MyPSurf);
do { TranslationV-=d; } while(v2+TranslationV > bsupv);
}
else {
MyIsTangent=MyIsTangentbis=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
X(1) = u2+TranslationU;
X(2) = v2+TranslationV;
}
else {
if(u1<binfu-0.0000000001) {
if(ThePSurfaceTool::IsUPeriodic(MyPSurf)) {
Standard_Real d = ThePSurfaceTool::UPeriod(MyPSurf);
do { TranslationU+=d; } while(u1+TranslationU < binfu);
}
else {
MyIsTangent=MyIsTangentbis=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
else if(u1>bsupu+0.0000000001) {
if(ThePSurfaceTool::IsUPeriodic(MyPSurf)) {
Standard_Real d = ThePSurfaceTool::UPeriod(MyPSurf);
do { TranslationU-=d; } while(u1+TranslationU > bsupu);
}
else {
MyIsTangent=MyIsTangentbis=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
if(v1<binfv-0.0000000001) {
if(ThePSurfaceTool::IsVPeriodic(MyPSurf)) {
Standard_Real d = ThePSurfaceTool::VPeriod(MyPSurf);
do { TranslationV+=d; } while(v1+TranslationV < binfv);
}
else {
MyIsTangent=MyIsTangentbis=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
else if(v1>bsupv+0.0000000001) {
if(ThePSurfaceTool::IsVPeriodic(MyPSurf)) {
Standard_Real d = ThePSurfaceTool::VPeriod(MyPSurf);
do { TranslationV-=d; } while(v1+TranslationV > bsupv);
}
else {
MyIsTangent=MyIsTangentbis=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
X(1) = u1+TranslationU;
X(2) = v1+TranslationV;
}
//----------------------------------------------------
//-- Pour eviter de coller le point de depart de la
//-- recherche sur une des bornes (Rsnld -> NotDone)
//--
if(X(1)-0.0000000001 <= binfu) X(1)=X(1)+0.0000001;
if(X(1)+0.0000000001 >= bsupu) X(1)=X(1)-0.0000001;
if(X(2)-0.0000000001 <= binfv) X(2)=X(2)+0.0000001;
if(X(2)+0.0000000001 >= bsupv) X(2)=X(2)-0.0000001;
Standard_Real PourTesterU = X(1);
Standard_Real PourTesterV = X(2);
/* ***************************************************************
cout<<" Envoi a Rsnld : "; Debug(X(1)); Debug(X(2));
Debug(BornInf(1)); Debug(BornInf(2));
Debug(BornSup(1)); Debug(BornSup(2)); cout<<endl;
Debug(u1); Debug(v1); Debug(u2); Debug(v2); Debug(MyImplicitFirst);
cout<<endl;
**************************************************************** */
Rsnld.Perform(MyZerImpFunc,X,BornInf,BornSup);
if(Rsnld.IsDone()) {
MyHasBeenComputed = Standard_True;
Rsnld.Root(X);
Standard_Real DistAvantApresU = Abs(PourTesterU-X(1));
Standard_Real DistAvantApresV = Abs(PourTesterV-X(2));
MyPnt = P = ThePSurfaceTool::Value(MyPSurf,X(1),X(2));
if( (DistAvantApresV <= 0.001 )
&& (DistAvantApresU <= 0.001 )) {
gp_Vec PD1U,PD1V;
gp_Vec ID1U,ID1V;
if(MyImplicitFirst) {
u2 = X(1)-TranslationU;
v2 = X(2)-TranslationV;
ComputeParametersOnImplicitSurface(MyISurf,P,u1,v1);
if(MyISurf.TypeQuadric() != GeomAbs_Plane) {
while(u1-tu1>PI) u1-=PI+PI;
while(tu1-u1>PI) u1+=PI+PI;
}
MyParOnS1.SetCoord(tu1,tv1);
MyParOnS2.SetCoord(tu2,tv2);
ThePSurfaceTool::D1(MyPSurf,X(1),X(2),P,PD1U,PD1V);
MyISurf.D1(u1,v1,P,ID1U,ID1V);
}
else {
u1 = X(1)-TranslationU;
v1 = X(2)-TranslationV;
ComputeParametersOnImplicitSurface(MyISurf,P,u2,v2);
if(MyISurf.TypeQuadric() != GeomAbs_Plane) {
while(u2-tu2>PI) u2-=PI+PI;
while(tu2-u2>PI) u2+=PI+PI;
}
MyParOnS1.SetCoord(tu1,tv1);
MyParOnS2.SetCoord(tu2,tu2);
ThePSurfaceTool::D1(MyPSurf,X(1),X(2),P,PD1U,PD1V);
MyISurf.D1(u2,v2,P,ID1U,ID1V);
}
gp_Vec VNormaleImp = MyISurf.Normale(MyPnt);
gp_Vec VNormalePrm = PD1U.Crossed(PD1V);
if( VNormaleImp.SquareMagnitude() <= gp::Resolution()
|| VNormalePrm.SquareMagnitude() <= gp::Resolution()) {
MyIsTangent = Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
gp_Dir NormaleImp(VNormaleImp);
gp_Dir NormalePrm(VNormalePrm);
gp_Vec VNImp(NormaleImp);
gp_Vec VNPrm(NormalePrm);
MyTg = VNImp.Crossed(VNPrm);
Standard_Real NmyTg = MyTg.Magnitude();
if(NmyTg < 0.000001) {
MyIsTangent = Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
MyTg.SetCoord(MyTg.X()/NmyTg,MyTg.Y()/NmyTg,MyTg.Z()/NmyTg);
MyTg = NormaleImp.Crossed(NormalePrm);
Tg = MyTg;
Standard_Real TUTV,TgTU,TgTV,TUTU,TVTV,DIS;
Standard_Real DeltaU,DeltaV;
TUTU = PD1U.Dot(PD1U);
TVTV = PD1V.Dot(PD1V);
TUTV = PD1U.Dot(PD1V);
TgTU = MyTg.Dot(PD1U);
TgTV = MyTg.Dot(PD1V);
DIS = TUTU * TVTV - TUTV * TUTV;
if(DIS<1e-10 && DIS>-1e-10) {
MyIsTangent = Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
DeltaU = (TgTU * TVTV - TgTV * TUTV ) / DIS ;
DeltaV = (TgTV * TUTU - TgTU * TUTV ) / DIS ;
if(MyImplicitFirst) {
MyTguv1.SetCoord( MyTg.Dot(ID1U)/(ID1U.Dot(ID1U))
,MyTg.Dot(ID1V)/(ID1V.Dot(ID1V)));
MyTguv2.SetCoord(DeltaU,DeltaV);
Tguv1 = MyTguv1;
Tguv2 = MyTguv2;
}
else {
MyTguv1.SetCoord(DeltaU,DeltaV);
MyTguv2.SetCoord( MyTg.Dot(ID1U)/(ID1U.Dot(ID1U))
,MyTg.Dot(ID1V)/(ID1V.Dot(ID1V)));
Tguv1 = MyTguv1;
Tguv2 = MyTguv2;
}
MyIsTangent=Standard_True;
return(Standard_True);
}
else {
//-- cout<<" ApproxInt_ImpImpSvSurfaces.gxx : Distance apres recadrage Trop Grande "<<endl;
MyIsTangent=Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
else {
MyIsTangent = Standard_False;
MyHasBeenComputed = MyHasBeenComputedbis = Standard_False;
return(Standard_False);
}
}
//--------------------------------------------------------------------------------
|
