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// File: Geom2dGcc_Lin2d2Tan.cxx
// Created: Wed Oct 21 14:52:54 1992
// Author: Remi GILET
// <reg@phobox>
#include <Geom2dGcc_Lin2d2Tan.ixx>
#include <Geom2dGcc_MyQCurve.hxx>
#include <GccAna_Lin2d2Tan.hxx>
#include <Geom2dGcc_MyL2d2Tan.hxx>
#include <Geom2d_Circle.hxx>
#include <GccEnt_QualifiedCirc.hxx>
#include <StdFail_NotDone.hxx>
#include <Standard_NegativeValue.hxx>
#include <Standard_OutOfRange.hxx>
#include <Geom2dGcc_CurveTool.hxx>
// Modified by Sergey KHROMOV - Wed Oct 16 11:44:41 2002 Begin
Geom2dGcc_Lin2d2Tan::
Geom2dGcc_Lin2d2Tan (const Geom2dGcc_QualifiedCurve& Qualified1,
const Geom2dGcc_QualifiedCurve& Qualified2,
const Standard_Real Tolang ):
linsol(1,4) ,
qualifier1(1,4),
qualifier2(1,4),
pnttg1sol(1,4) ,
pnttg2sol(1,4) ,
par1sol(1,4) ,
par2sol(1,4) ,
pararg1(1,4) ,
pararg2(1,4)
{
Geom2dAdaptor_Curve C1 = Qualified1.Qualified();
Geom2dAdaptor_Curve C2 = Qualified2.Qualified();
Handle(Geom2d_Curve) CC1 = C1.Curve();
Handle(Geom2d_Curve) CC2 = C2.Curve();
GeomAbs_CurveType Type1 = C1.GetType();
GeomAbs_CurveType Type2 = C2.GetType();
//=============================================================================
// Appel a GccAna. +
//=============================================================================
NbrSol = 0;
if (Type1 == GeomAbs_Circle && Type2 == GeomAbs_Circle ) {
Handle(Geom2d_Circle) CCC1 = Handle(Geom2d_Circle)::DownCast(CC1);
gp_Circ2d c1(CCC1->Circ2d());
Handle(Geom2d_Circle) CCC2 = Handle(Geom2d_Circle)::DownCast(CC2);
gp_Circ2d c2(CCC2->Circ2d());
GccEnt_QualifiedCirc Qc1=GccEnt_QualifiedCirc(c1,Qualified1.Qualifier());
GccEnt_QualifiedCirc Qc2=GccEnt_QualifiedCirc(c2,Qualified2.Qualifier());
GccAna_Lin2d2Tan Lin(Qc1,Qc2,Tolang);
WellDone = Lin.IsDone();
// Modified by Sergey KHROMOV - Thu Apr 5 17:50:48 2001 Begin
if (WellDone) {
// Modified by Sergey KHROMOV - Thu Apr 5 17:50:49 2001 End
NbrSol = Lin.NbSolutions();
for (Standard_Integer i = 1 ; i <= NbrSol ; i++) {
linsol(i) = Lin.ThisSolution(i);
Lin.Tangency1(i,par1sol(i),pararg1(i),pnttg1sol(i));
Lin.Tangency2(i,par2sol(i),pararg2(i),pnttg2sol(i));
Lin.WhichQualifier(i,qualifier1(i),qualifier2(i));
}
}
}
else {
Geom2dGcc_MyQCurve Qc1(C1,Qualified1.Qualifier());
Standard_Real a1FPar = Geom2dGcc_CurveTool::FirstParameter(C1);
Standard_Real a1LPar = Geom2dGcc_CurveTool::LastParameter(C1);
Standard_Integer aNbSamples1 = Geom2dGcc_CurveTool::NbSamples(C1);
Standard_Real aStep1 = (a1LPar - a1FPar)/aNbSamples1;
Standard_Real Param1 = a1FPar;
Geom2dGcc_MyQCurve Qc2(C2,Qualified2.Qualifier());
Standard_Real a2FPar = Geom2dGcc_CurveTool::FirstParameter(C2);
Standard_Real a2LPar = Geom2dGcc_CurveTool::LastParameter(C2);
Standard_Integer aNbSamples2 = Geom2dGcc_CurveTool::NbSamples(C2);
Standard_Real aStep2 = (a2LPar - a2FPar)/aNbSamples2;
Standard_Real Param2 = a2FPar;
Standard_Integer i;
Standard_Integer j;
for (i = 0; i <= aNbSamples1 && NbrSol < 4; i++) {
Param2 = a2FPar;
for (j = 0; j <= aNbSamples2 && NbrSol < 4; j++) {
Geom2dGcc_MyL2d2Tan Lin(Qc1,Qc2,Param1,Param2,Tolang);
if (Lin.IsDone()) {
if (Add(NbrSol + 1, Lin, Tolang, C1, C2))
NbrSol++;
}
Param2 += aStep2;
}
Param1 += aStep1;
}
WellDone = (NbrSol > 0);
}
}
Geom2dGcc_Lin2d2Tan::
Geom2dGcc_Lin2d2Tan (const Geom2dGcc_QualifiedCurve& Qualified1,
const gp_Pnt2d& ThePoint ,
const Standard_Real Tolang ):
linsol(1,2) ,
qualifier1(1,2),
qualifier2(1,2),
pnttg1sol(1,2) ,
pnttg2sol(1,2) ,
par1sol(1,2) ,
par2sol(1,2) ,
pararg1(1,2) ,
pararg2(1,2)
{
Geom2dAdaptor_Curve C1 = Qualified1.Qualified();
Handle(Geom2d_Curve) CC1 = C1.Curve();
GeomAbs_CurveType Type1 = C1.GetType();
//=============================================================================
// Appel a GccAna. +
//=============================================================================
NbrSol = 0;
if (Type1 == GeomAbs_Circle) {
Handle(Geom2d_Circle) CCC1 = Handle(Geom2d_Circle)::DownCast(CC1);
gp_Circ2d c1(CCC1->Circ2d());
GccEnt_QualifiedCirc Qc1=GccEnt_QualifiedCirc(c1,Qualified1.Qualifier());
GccAna_Lin2d2Tan Lin(Qc1,ThePoint,Tolang);
WellDone = Lin.IsDone();
if (WellDone) {
NbrSol = Lin.NbSolutions();
for (Standard_Integer i = 1 ; i <= NbrSol ; i++) {
linsol(i) = Lin.ThisSolution(i);
Lin.Tangency1(i,par1sol(i),pararg1(i),pnttg1sol(i));
Lin.Tangency2(i,par2sol(i),pararg2(i),pnttg2sol(i));
Lin.WhichQualifier(i,qualifier1(i),qualifier2(i));
}
}
}
else {
Geom2dGcc_MyQCurve Qc1(C1,Qualified1.Qualifier());
Standard_Real aFirstPar = Geom2dGcc_CurveTool::FirstParameter(C1);
Standard_Real aLastPar = Geom2dGcc_CurveTool::LastParameter(C1);
Standard_Integer aNbSamples = Geom2dGcc_CurveTool::NbSamples(C1);
Standard_Real aStep = (aLastPar - aFirstPar)/aNbSamples;
Standard_Real Param1 = aFirstPar;
Standard_Integer i;
for (i = 0; i <= aNbSamples && NbrSol < 2; i++) {
Geom2dGcc_MyL2d2Tan Lin(Qc1,ThePoint,Param1,Tolang);
if (Lin.IsDone()) {
if (Add(NbrSol + 1, Lin, Tolang, C1, Geom2dAdaptor_Curve()))
NbrSol++;
}
Param1 += aStep;
}
WellDone = (NbrSol > 0);
}
}
// Modified by Sergey KHROMOV - Wed Oct 16 11:44:41 2002 End
Geom2dGcc_Lin2d2Tan::
Geom2dGcc_Lin2d2Tan (const Geom2dGcc_QualifiedCurve& Qualified1,
const Geom2dGcc_QualifiedCurve& Qualified2,
const Standard_Real Tolang ,
const Standard_Real Param1 ,
const Standard_Real Param2 ):
linsol(1,4) ,
qualifier1(1,4),
qualifier2(1,4),
pnttg1sol(1,4) ,
pnttg2sol(1,4) ,
par1sol(1,4) ,
par2sol(1,4) ,
pararg1(1,4) ,
pararg2(1,4)
{
Geom2dAdaptor_Curve C1 = Qualified1.Qualified();
Geom2dAdaptor_Curve C2 = Qualified2.Qualified();
Handle(Geom2d_Curve) CC1 = C1.Curve();
Handle(Geom2d_Curve) CC2 = C2.Curve();
GeomAbs_CurveType Type1 = C1.GetType();
GeomAbs_CurveType Type2 = C2.GetType();
//=============================================================================
// Appel a GccAna. +
//=============================================================================
NbrSol = 0;
if (Type1 == GeomAbs_Circle && Type2 == GeomAbs_Circle ) {
Handle(Geom2d_Circle) CCC1 = Handle(Geom2d_Circle)::DownCast(CC1);
gp_Circ2d c1(CCC1->Circ2d());
Handle(Geom2d_Circle) CCC2 = Handle(Geom2d_Circle)::DownCast(CC2);
gp_Circ2d c2(CCC2->Circ2d());
GccEnt_QualifiedCirc Qc1=GccEnt_QualifiedCirc(c1,Qualified1.Qualifier());
GccEnt_QualifiedCirc Qc2=GccEnt_QualifiedCirc(c2,Qualified2.Qualifier());
GccAna_Lin2d2Tan Lin(Qc1,Qc2,Tolang);
WellDone = Lin.IsDone();
// Modified by Sergey KHROMOV - Thu Apr 5 17:50:48 2001 Begin
if (WellDone) {
// Modified by Sergey KHROMOV - Thu Apr 5 17:50:49 2001 End
NbrSol = Lin.NbSolutions();
for (Standard_Integer i = 1 ; i <= NbrSol ; i++) {
linsol(i) = Lin.ThisSolution(i);
Lin.Tangency1(i,par1sol(i),pararg1(i),pnttg1sol(i));
Lin.Tangency2(i,par2sol(i),pararg2(i),pnttg2sol(i));
Lin.WhichQualifier(i,qualifier1(i),qualifier2(i));
}
}
}
else {
Geom2dGcc_MyQCurve Qc1(C1,Qualified1.Qualifier());
Geom2dGcc_MyQCurve Qc2(C2,Qualified2.Qualifier());
Geom2dGcc_MyL2d2Tan Lin(Qc1,Qc2,Param1,Param2,Tolang);
WellDone = Lin.IsDone();
// Modified by Sergey KHROMOV - Thu Apr 5 17:51:59 2001 Begin
if (WellDone) {
// Modified by Sergey KHROMOV - Thu Apr 5 17:52:00 2001 End
NbrSol = 1;
linsol(1) = Lin.ThisSolution();
Lin.Tangency1(par1sol(1),pararg1(1),pnttg1sol(1));
Lin.Tangency2(par2sol(1),pararg2(1),pnttg2sol(1));
Lin.WhichQualifier(qualifier1(1),qualifier2(1));
}
}
}
Geom2dGcc_Lin2d2Tan::
Geom2dGcc_Lin2d2Tan (const Geom2dGcc_QualifiedCurve& Qualified1,
const gp_Pnt2d& ThePoint ,
const Standard_Real Tolang ,
const Standard_Real Param1 ):
linsol(1,2) ,
qualifier1(1,2),
qualifier2(1,2),
pnttg1sol(1,2) ,
pnttg2sol(1,2) ,
par1sol(1,2) ,
par2sol(1,2) ,
pararg1(1,2) ,
pararg2(1,2)
{
Geom2dAdaptor_Curve C1 = Qualified1.Qualified();
Handle(Geom2d_Curve) CC1 = C1.Curve();
GeomAbs_CurveType Type1 = C1.GetType();
//=============================================================================
// Appel a GccAna. +
//=============================================================================
NbrSol = 0;
if (Type1 == GeomAbs_Circle) {
Handle(Geom2d_Circle) CCC1 = Handle(Geom2d_Circle)::DownCast(CC1);
gp_Circ2d c1(CCC1->Circ2d());
GccEnt_QualifiedCirc Qc1=GccEnt_QualifiedCirc(c1,Qualified1.Qualifier());
GccAna_Lin2d2Tan Lin(Qc1,ThePoint,Tolang);
WellDone = Lin.IsDone();
// Modified by Sergey KHROMOV - Thu Apr 5 17:52:32 2001 Begin
if (WellDone) {
// Modified by Sergey KHROMOV - Thu Apr 5 17:52:34 2001 End
NbrSol = Lin.NbSolutions();
for (Standard_Integer i = 1 ; i <= NbrSol ; i++) {
linsol(i) = Lin.ThisSolution(i);
Lin.Tangency1(i,par1sol(i),pararg1(i),pnttg1sol(i));
Lin.Tangency2(i,par2sol(i),pararg2(i),pnttg2sol(i));
Lin.WhichQualifier(i,qualifier1(i),qualifier2(i));
}
}
}
else {
Geom2dGcc_MyQCurve Qc1(C1,Qualified1.Qualifier());
Geom2dGcc_MyL2d2Tan Lin(Qc1,ThePoint,Param1,Tolang);
WellDone = Lin.IsDone();
// Modified by Sergey KHROMOV - Thu Apr 5 17:53:01 2001 Begin
if (WellDone) {
// Modified by Sergey KHROMOV - Thu Apr 5 17:53:02 2001 End
NbrSol = 1;
linsol(1) = Lin.ThisSolution();
Lin.Tangency1(par1sol(1),pararg1(1),pnttg1sol(1));
Lin.Tangency2(par2sol(1),pararg2(1),pnttg2sol(1));
Lin.WhichQualifier(qualifier1(1),qualifier2(1));
}
}
}
Standard_Boolean Geom2dGcc_Lin2d2Tan::
IsDone () const { return WellDone; }
Standard_Integer Geom2dGcc_Lin2d2Tan::
NbSolutions () const { return NbrSol; }
gp_Lin2d Geom2dGcc_Lin2d2Tan::
ThisSolution (const Standard_Integer Index) const
{
if (Index > NbrSol || Index <= 0) { Standard_OutOfRange::Raise(); }
return linsol(Index);
}
void Geom2dGcc_Lin2d2Tan::
WhichQualifier (const Standard_Integer Index ,
GccEnt_Position& Qualif1,
GccEnt_Position& Qualif2) const
{
if (!WellDone) { StdFail_NotDone::Raise(); }
else if (Index <= 0 ||Index > NbrSol) { Standard_OutOfRange::Raise(); }
else {
Qualif1 = qualifier1(Index);
Qualif2 = qualifier2(Index);
}
}
void Geom2dGcc_Lin2d2Tan::
Tangency1 (const Standard_Integer Index,
Standard_Real& ParSol,
Standard_Real& ParArg,
gp_Pnt2d& PntSol) const
{
if (!WellDone) { StdFail_NotDone::Raise(); }
else if (Index <= 0 ||Index > NbrSol) { Standard_OutOfRange::Raise(); }
else {
ParSol = par1sol(Index);
ParArg = pararg1(Index);
PntSol = pnttg1sol(Index);
}
}
void Geom2dGcc_Lin2d2Tan::
Tangency2 (const Standard_Integer Index ,
Standard_Real& ParSol ,
Standard_Real& ParArg ,
gp_Pnt2d& PntSol ) const
{
if (!WellDone) { StdFail_NotDone::Raise(); }
else if (Index <= 0 ||Index > NbrSol) { Standard_OutOfRange::Raise(); }
else {
ParSol = par2sol(Index);
ParArg = pararg2(Index);
PntSol = pnttg2sol(Index);
}
}
Standard_Boolean Geom2dGcc_Lin2d2Tan::Add(const Standard_Integer theIndex,
const Geom2dGcc_MyL2d2Tan &theLin,
const Standard_Real theTol,
const Geom2dAdaptor_Curve &theC1,
const Geom2dAdaptor_Curve &theC2)
{
Standard_Integer i;
Standard_Real aPar1sol;
Standard_Real aPar2sol;
Standard_Real aPar1arg;
Standard_Real aPar2arg;
gp_Pnt2d aPnt1Sol;
gp_Pnt2d aPnt2Sol;
gp_Lin2d aLin = theLin.ThisSolution();
theLin.Tangency1(aPar1sol, aPar1arg, aPnt1Sol);
theLin.Tangency2(aPar2sol, aPar2arg, aPnt2Sol);
for(i = 1; i < theIndex; i++) {
if (Abs(aPar1arg - pararg1(i)) <= theTol &&
Abs(aPar2arg - pararg2(i)) <= theTol)
return Standard_False;
}
gp_Dir2d aLinDir = aLin.Direction();
gp_Vec2d aVTan;
gp_Pnt2d aPoint;
Geom2dGcc_CurveTool::D1(theC1, aPar1arg, aPoint, aVTan);
if (Abs(aLinDir.Crossed(gp_Dir2d(aVTan))) > theTol)
return Standard_False;
if (!theC2.Curve().IsNull()) {
Geom2dGcc_CurveTool::D1(theC2, aPar2arg, aPoint, aVTan);
if (Abs(aLinDir.Crossed(gp_Dir2d(aVTan))) > theTol)
return Standard_False;
}
linsol(theIndex) = aLin;
par1sol(theIndex) = aPar1sol;
pararg1(theIndex) = aPar1arg;
pnttg1sol(theIndex) = aPnt1Sol;
par2sol(theIndex) = aPar2sol;
pararg2(theIndex) = aPar2arg;
pnttg2sol(theIndex) = aPnt2Sol;
theLin.WhichQualifier(qualifier1(theIndex),qualifier2(theIndex));
return Standard_True;
}
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