[occt.git] / src / GccAna / GccAna_Circ2d2TanOn_7.cxx

// Created on: 1992-01-02
// Created by: Remi GILET
// Copyright (c) 1992-1999 Matra Datavision
// Copyright (c) 1999-2012 OPEN CASCADE SAS
//
// The content of this file is subject to the Open CASCADE Technology Public
// License Version 6.5 (the "License"). You may not use the content of this file
// except in compliance with the License. Please obtain a copy of the License
// at http://www.opencascade.org and read it completely before using this file.
//
// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
//
// The Original Code and all software distributed under the License is
// distributed on an "AS IS" basis, without warranty of any kind, and the
// Initial Developer hereby disclaims all such warranties, including without
// limitation, any warranties of merchantability, fitness for a particular
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.


#include <GccAna_Circ2d2TanOn.jxx>

#include <ElCLib.hxx>
#include <gp_Dir2d.hxx>
#include <gp_Ax2d.hxx>
#include <IntAna2d_AnaIntersection.hxx>
#include <IntAna2d_IntPoint.hxx>
#include <GccAna_CircLin2dBisec.hxx>
#include <GccInt_IType.hxx>
#include <GccInt_BCirc.hxx>
#include <IntAna2d_Conic.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <GccEnt_BadQualifier.hxx>

GccAna_Circ2d2TanOn::
   GccAna_Circ2d2TanOn (const GccEnt_QualifiedCirc& Qualified1 ,
                        const GccEnt_QualifiedLin&  Qualified2 ,
                        const gp_Circ2d&            OnCirc     ,
                        const Standard_Real         Tolerance  ):
   cirsol(1,4)     ,
   qualifier1(1,4) ,
   qualifier2(1,4),
   TheSame1(1,4)   ,
   TheSame2(1,4)   ,
   pnttg1sol(1,4)  ,
   pnttg2sol(1,4)  ,
   pntcen(1,4)     ,
   par1sol(1,4)    ,
   par2sol(1,4)    ,
   pararg1(1,4)    ,
   pararg2(1,4)    ,
   parcen3(1,4)    
{
  TheSame1.Init(0);
  TheSame2.Init(0);
  WellDone = Standard_False;
  NbrSol = 0;
  if (!(Qualified1.IsEnclosed() || Qualified1.IsEnclosing() || 
	Qualified1.IsOutside() || Qualified1.IsUnqualified()) ||
      !(Qualified2.IsEnclosed() ||
	Qualified2.IsOutside() || Qualified2.IsUnqualified())) {
    GccEnt_BadQualifier::Raise();
    return;
  }
  Standard_Real Radius=0;
  gp_Dir2d dirx(1.,0.);
  gp_Circ2d C1 = Qualified1.Qualified();
  gp_Lin2d L2 = Qualified2.Qualified();
  Standard_Real R1 = C1.Radius();
  gp_Pnt2d center1(C1.Location());
  gp_Pnt2d origin2(L2.Location());
  gp_Dir2d dirL2(L2.Direction());
  gp_Dir2d normL2(-dirL2.Y(),dirL2.X());

//=========================================================================
//   Processing of boundary cases.                                          +
//=========================================================================

  Standard_Real Tol = Abs(Tolerance);
  TColStd_Array1OfReal Rradius(1,2);
  Standard_Integer nbsol1 = 1;
//  Standard_Integer nbsol2 = 0;
  Standard_Real Ron = OnCirc.Radius();
  Standard_Real distcco = OnCirc.Location().Distance(center1);
  gp_Dir2d dircc(OnCirc.Location().XY()-center1.XY());
  gp_Pnt2d pinterm(center1.XY()+(distcco-Ron)*dircc.XY());
  Standard_Real distpl2 =L2.Distance(pinterm);
  Standard_Real distcc1 =pinterm.Distance(center1);
  Standard_Real d1 = Abs(distpl2-Abs(distcc1-R1));
  Standard_Real d2 = Abs(distpl2-(distcc1+R1));
  if ( d1 > Tol || d2 > Tol ) {
    pinterm = gp_Pnt2d(center1.XY()+(distcco-Ron)*dircc.XY());
    if ( d1 > Tol || d2 > Tol ) {
      nbsol1 = 0;
    }
  }
  if (nbsol1 > 0) {
    if (Qualified1.IsEnclosed() || Qualified1.IsOutside()) {
      nbsol1 = 1;
      Rradius(1) = Abs(distcc1-R1);
    }
    else if (Qualified1.IsEnclosing()) {
      nbsol1 = 1;
      Rradius(1) = R1+distcc1;
    }
    else if (Qualified1.IsUnqualified()) {
      nbsol1 = 2;
      Rradius(1) = Abs(distcc1-R1);
      Rradius(2) = R1+distcc1;
    }
    gp_Dir2d dirbid(origin2.XY()-pinterm.XY());
    gp_Dir2d normal(-dirL2.Y(),dirL2.X());
    if (Qualified1.IsEnclosed() && dirbid.Dot(normal) < 0.) {
      nbsol1 = 0;
    }
    else if (Qualified1.IsOutside() && dirbid.Dot(normal) < 0.) {
      nbsol1 = 0;
    }
    for (Standard_Integer i = 1 ; i <= nbsol1 ; i++) {
      if (Abs(Rradius(i)-distpl2) <= Tol) {
	WellDone = Standard_True;
	NbrSol++;
	cirsol(NbrSol) = gp_Circ2d(gp_Ax2d(pinterm,dirx),Rradius(i));
//      ===========================================================
	gp_Dir2d dc1(center1.XY()-pinterm.XY());
	gp_Dir2d dc2(origin2.XY()-pinterm.XY());
	distcc1 = pinterm.Distance(center1);
	if (!Qualified1.IsUnqualified()) { 
	  qualifier1(NbrSol) = Qualified1.Qualifier();
	}
	else if (Abs(distcc1+Rradius(i)-R1) < Tol) {
	  qualifier1(NbrSol) = GccEnt_enclosed;
	}
	else if (Abs(distcc1-R1-Rradius(i)) < Tol) {
	  qualifier1(NbrSol) = GccEnt_outside;
	}
	else { qualifier1(NbrSol) = GccEnt_enclosing; }
	if (!Qualified2.IsUnqualified()) { 
	  qualifier2(NbrSol) = Qualified2.Qualifier();
	}
	else if (dc2.Dot(normL2) > 0.0) {
	  qualifier2(NbrSol) = GccEnt_outside;
	}
	else { qualifier2(NbrSol) = GccEnt_enclosed; }

	Standard_Real sign = dc2.Dot(gp_Dir2d(-dirL2.Y(),dirL2.X()));
	dc2 = gp_Dir2d(sign*gp_XY(-dirL2.Y(),dirL2.X()));
	pnttg1sol(NbrSol) = gp_Pnt2d(pinterm.XY()+Rradius(i)*dc1.XY());
	pnttg2sol(NbrSol) = gp_Pnt2d(pinterm.XY()+Rradius(i)*dc2.XY());
	par1sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),pnttg1sol(NbrSol));
	pararg1(NbrSol)=ElCLib::Parameter(C1,pnttg1sol(NbrSol));
	par2sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),pnttg2sol(NbrSol));
	pararg2(NbrSol)=ElCLib::Parameter(L2,pnttg2sol(NbrSol));
	parcen3(NbrSol)=ElCLib::Parameter(OnCirc,pntcen(NbrSol));
      }
    }
    if (WellDone) { return; }
  }

//=========================================================================
//   General case.                                                         +
//=========================================================================

  GccAna_CircLin2dBisec Bis(C1,L2);
  if (Bis.IsDone()) {
    Standard_Integer nbsolution = Bis.NbSolutions();
    for (Standard_Integer i = 1 ; i <=  nbsolution; i++) {
      Handle(GccInt_Bisec) Sol = Bis.ThisSolution(i);
      GccInt_IType type = Sol->ArcType();
      IntAna2d_AnaIntersection Intp;
      if (type == GccInt_Lin) {
	Intp.Perform(Sol->Line(),OnCirc);
      }
      else if (type == GccInt_Par) {
	Intp.Perform(OnCirc,IntAna2d_Conic(Sol->Parabola()));
      }
      if (Intp.IsDone()) {
	if ((!Intp.IsEmpty())&&(!Intp.ParallelElements())&&
	    (!Intp.IdenticalElements())) {
	  for (Standard_Integer j = 1 ; j <= Intp.NbPoints() ; j++) {
	    gp_Pnt2d Center(Intp.Point(j).Value());
	    Standard_Real dist1 = Center.Distance(center1);
	    Standard_Real dist2 = L2.Distance(Center);
//	    Standard_Integer nbsol = 1;
	    Standard_Boolean ok = Standard_False;
	    if (Qualified1.IsEnclosed()) {
	      if (dist1-R1 < Tolerance) {
		if (Abs(Abs(R1-dist1)-dist2)<Tolerance) { ok=Standard_True; }
	      }
	    }
	    else if (Qualified1.IsOutside()) {
	      if (R1-dist1 < Tolerance) {
		if (Abs(Abs(R1-dist1)-dist2)<Tolerance) { ok=Standard_True; }
	      }
	    }
	    else if (Qualified1.IsEnclosing() || Qualified1.IsUnqualified()) {
	      ok = Standard_True;
	    }
	    if (Qualified2.IsEnclosed() && ok) {
	      if ((((origin2.X()-Center.X())*(-dirL2.Y()))+
		   ((origin2.Y()-Center.Y())*(dirL2.X())))<=0){
		ok = Standard_True;
		Radius = dist2;
	      }
	    }
	    else if (Qualified2.IsOutside() && ok) {
	      if ((((origin2.X()-Center.X())*(-dirL2.Y()))+
		   ((origin2.Y()-Center.Y())*(dirL2.X())))>=0){
		ok = Standard_True;
		Radius = dist2;
	      }
	    }
	    else if (Qualified2.IsUnqualified() && ok) {
	      ok = Standard_True;
	      Radius = dist2;
	    }
	    if (ok) {
	      NbrSol++;
	      cirsol(NbrSol) = gp_Circ2d(gp_Ax2d(Center,dirx),Radius);
//            =======================================================
	      gp_Dir2d dc2(origin2.XY()-Center.XY());
	      distcc1 = Center.Distance(center1);
	      if (!Qualified1.IsUnqualified()) { 
		qualifier1(NbrSol) = Qualified1.Qualifier();
	      }
	      else if (Abs(distcc1+Radius-R1) < Tol) {
		qualifier1(NbrSol) = GccEnt_enclosed;
	      }
	      else if (Abs(distcc1-R1-Radius) < Tol) {
		qualifier1(NbrSol) = GccEnt_outside;
	      }
	      else { qualifier1(NbrSol) = GccEnt_enclosing; }
	      if (!Qualified2.IsUnqualified()) { 
		qualifier2(NbrSol) = Qualified2.Qualifier();
	       }
	      else if (dc2.Dot(normL2) > 0.0) {
		qualifier2(NbrSol) = GccEnt_outside;
	      }
	      else { qualifier2(NbrSol) = GccEnt_enclosed; }
	      if (Center.Distance(center1) <= Tolerance &&
		  Abs(Radius-C1.Radius()) <= Tolerance) {
		TheSame1(NbrSol) = 1;
	      }
	      else {
		TheSame1(NbrSol) = 0;
		gp_Dir2d dc1(center1.XY()-Center.XY());
		pnttg1sol(NbrSol) = gp_Pnt2d(Center.XY()+Radius*dc1.XY());
		par1sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),
						  pnttg1sol(NbrSol));
		pararg1(NbrSol)=ElCLib::Parameter(C1,pnttg1sol(NbrSol));
	      }
	      TheSame2(NbrSol) = 0;
	      Standard_Real sign = dc2.Dot(gp_Dir2d(normL2.XY()));
	      dc2 = gp_Dir2d(sign*gp_XY(normL2.XY()));
	      pnttg2sol(NbrSol) = gp_Pnt2d(Center.XY()+Radius*dc2.XY());
	      par2sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),
						pnttg2sol(NbrSol));
	      pararg2(NbrSol)=ElCLib::Parameter(L2,pnttg2sol(NbrSol));
	      pntcen(NbrSol) = Center;
	      parcen3(NbrSol)=ElCLib::Parameter(OnCirc,pntcen(NbrSol));
	    }
	  }
	}
	WellDone = Standard_True;
      }
    }
  }
}
Commit	Line	Data
b311480e	1	// Created on: 1992-01-02
	2	// Created by: Remi GILET
	3	// Copyright (c) 1992-1999 Matra Datavision
	4	// Copyright (c) 1999-2012 OPEN CASCADE SAS
	5	//
	6	// The content of this file is subject to the Open CASCADE Technology Public
	7	// License Version 6.5 (the "License"). You may not use the content of this file
	8	// except in compliance with the License. Please obtain a copy of the License
	9	// at http://www.opencascade.org and read it completely before using this file.
	10	//
	11	// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
	12	// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
	13	//
	14	// The Original Code and all software distributed under the License is
	15	// distributed on an "AS IS" basis, without warranty of any kind, and the
	16	// Initial Developer hereby disclaims all such warranties, including without
	17	// limitation, any warranties of merchantability, fitness for a particular
	18	// purpose or non-infringement. Please see the License for the specific terms
	19	// and conditions governing the rights and limitations under the License.
	20
7fd59977	21
	22	#include <GccAna_Circ2d2TanOn.jxx>
	23
	24	#include <ElCLib.hxx>
	25	#include <gp_Dir2d.hxx>
	26	#include <gp_Ax2d.hxx>
	27	#include <IntAna2d_AnaIntersection.hxx>
	28	#include <IntAna2d_IntPoint.hxx>
	29	#include <GccAna_CircLin2dBisec.hxx>
	30	#include <GccInt_IType.hxx>
	31	#include <GccInt_BCirc.hxx>
	32	#include <IntAna2d_Conic.hxx>
	33	#include <TColStd_Array1OfReal.hxx>
	34	#include <GccEnt_BadQualifier.hxx>
	35
	36	GccAna_Circ2d2TanOn::
	37	GccAna_Circ2d2TanOn (const GccEnt_QualifiedCirc& Qualified1 ,
	38	const GccEnt_QualifiedLin& Qualified2 ,
	39	const gp_Circ2d& OnCirc ,
	40	const Standard_Real Tolerance ):
	41	cirsol(1,4) ,
	42	qualifier1(1,4) ,
	43	qualifier2(1,4),
	44	TheSame1(1,4) ,
	45	TheSame2(1,4) ,
	46	pnttg1sol(1,4) ,
	47	pnttg2sol(1,4) ,
	48	pntcen(1,4) ,
	49	par1sol(1,4) ,
	50	par2sol(1,4) ,
	51	pararg1(1,4) ,
	52	pararg2(1,4) ,
	53	parcen3(1,4)
	54	{
	55	TheSame1.Init(0);
	56	TheSame2.Init(0);
	57	WellDone = Standard_False;
	58	NbrSol = 0;
	59	if (!(Qualified1.IsEnclosed() \|\| Qualified1.IsEnclosing() \|\|
	60	Qualified1.IsOutside() \|\| Qualified1.IsUnqualified()) \|\|
	61	!(Qualified2.IsEnclosed() \|\|
	62	Qualified2.IsOutside() \|\| Qualified2.IsUnqualified())) {
	63	GccEnt_BadQualifier::Raise();
	64	return;
	65	}
	66	Standard_Real Radius=0;
	67	gp_Dir2d dirx(1.,0.);
	68	gp_Circ2d C1 = Qualified1.Qualified();
	69	gp_Lin2d L2 = Qualified2.Qualified();
	70	Standard_Real R1 = C1.Radius();
	71	gp_Pnt2d center1(C1.Location());
	72	gp_Pnt2d origin2(L2.Location());
	73	gp_Dir2d dirL2(L2.Direction());
	74	gp_Dir2d normL2(-dirL2.Y(),dirL2.X());
	75
	76	//=========================================================================
0d969553	77	// Processing of boundary cases. +
7fd59977	78	//=========================================================================
	79
	80	Standard_Real Tol = Abs(Tolerance);
	81	TColStd_Array1OfReal Rradius(1,2);
	82	Standard_Integer nbsol1 = 1;
	83	// Standard_Integer nbsol2 = 0;
	84	Standard_Real Ron = OnCirc.Radius();
	85	Standard_Real distcco = OnCirc.Location().Distance(center1);
	86	gp_Dir2d dircc(OnCirc.Location().XY()-center1.XY());
	87	gp_Pnt2d pinterm(center1.XY()+(distcco-Ron)*dircc.XY());
	88	Standard_Real distpl2 =L2.Distance(pinterm);
	89	Standard_Real distcc1 =pinterm.Distance(center1);
	90	Standard_Real d1 = Abs(distpl2-Abs(distcc1-R1));
	91	Standard_Real d2 = Abs(distpl2-(distcc1+R1));
	92	if ( d1 > Tol \|\| d2 > Tol ) {
	93	pinterm = gp_Pnt2d(center1.XY()+(distcco-Ron)*dircc.XY());
	94	if ( d1 > Tol \|\| d2 > Tol ) {
	95	nbsol1 = 0;
	96	}
	97	}
	98	if (nbsol1 > 0) {
	99	if (Qualified1.IsEnclosed() \|\| Qualified1.IsOutside()) {
	100	nbsol1 = 1;
	101	Rradius(1) = Abs(distcc1-R1);
	102	}
	103	else if (Qualified1.IsEnclosing()) {
	104	nbsol1 = 1;
	105	Rradius(1) = R1+distcc1;
	106	}
	107	else if (Qualified1.IsUnqualified()) {
	108	nbsol1 = 2;
	109	Rradius(1) = Abs(distcc1-R1);
	110	Rradius(2) = R1+distcc1;
	111	}
	112	gp_Dir2d dirbid(origin2.XY()-pinterm.XY());
	113	gp_Dir2d normal(-dirL2.Y(),dirL2.X());
	114	if (Qualified1.IsEnclosed() && dirbid.Dot(normal) < 0.) {
	115	nbsol1 = 0;
	116	}
	117	else if (Qualified1.IsOutside() && dirbid.Dot(normal) < 0.) {
	118	nbsol1 = 0;
	119	}
	120	for (Standard_Integer i = 1 ; i <= nbsol1 ; i++) {
	121	if (Abs(Rradius(i)-distpl2) <= Tol) {
	122	WellDone = Standard_True;
	123	NbrSol++;
	124	cirsol(NbrSol) = gp_Circ2d(gp_Ax2d(pinterm,dirx),Rradius(i));
	125	// ===========================================================
	126	gp_Dir2d dc1(center1.XY()-pinterm.XY());
	127	gp_Dir2d dc2(origin2.XY()-pinterm.XY());
	128	distcc1 = pinterm.Distance(center1);
	129	if (!Qualified1.IsUnqualified()) {
	130	qualifier1(NbrSol) = Qualified1.Qualifier();
	131	}
	132	else if (Abs(distcc1+Rradius(i)-R1) < Tol) {
	133	qualifier1(NbrSol) = GccEnt_enclosed;
	134	}
	135	else if (Abs(distcc1-R1-Rradius(i)) < Tol) {
	136	qualifier1(NbrSol) = GccEnt_outside;
	137	}
	138	else { qualifier1(NbrSol) = GccEnt_enclosing; }
	139	if (!Qualified2.IsUnqualified()) {
	140	qualifier2(NbrSol) = Qualified2.Qualifier();
	141	}
142	else if (dc2.Dot(normL2) > 0.0) {
143	qualifier2(NbrSol) = GccEnt_outside;
144	}
145	else { qualifier2(NbrSol) = GccEnt_enclosed; }
146
147	Standard_Real sign = dc2.Dot(gp_Dir2d(-dirL2.Y(),dirL2.X()));
148	dc2 = gp_Dir2d(sign*gp_XY(-dirL2.Y(),dirL2.X()));
149	pnttg1sol(NbrSol) = gp_Pnt2d(pinterm.XY()+Rradius(i)*dc1.XY());
150	pnttg2sol(NbrSol) = gp_Pnt2d(pinterm.XY()+Rradius(i)*dc2.XY());
151	par1sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),pnttg1sol(NbrSol));
152	pararg1(NbrSol)=ElCLib::Parameter(C1,pnttg1sol(NbrSol));
153	par2sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),pnttg2sol(NbrSol));
154	pararg2(NbrSol)=ElCLib::Parameter(L2,pnttg2sol(NbrSol));
155	parcen3(NbrSol)=ElCLib::Parameter(OnCirc,pntcen(NbrSol));
156	}
157	}
158	if (WellDone) { return; }
159	}
160
161	//=========================================================================
0d969553	162	// General case. +
7fd59977	163	//=========================================================================
	164
	165	GccAna_CircLin2dBisec Bis(C1,L2);
	166	if (Bis.IsDone()) {
	167	Standard_Integer nbsolution = Bis.NbSolutions();
	168	for (Standard_Integer i = 1 ; i <= nbsolution; i++) {
	169	Handle(GccInt_Bisec) Sol = Bis.ThisSolution(i);
	170	GccInt_IType type = Sol->ArcType();
	171	IntAna2d_AnaIntersection Intp;
	172	if (type == GccInt_Lin) {
	173	Intp.Perform(Sol->Line(),OnCirc);
	174	}
	175	else if (type == GccInt_Par) {
	176	Intp.Perform(OnCirc,IntAna2d_Conic(Sol->Parabola()));
	177	}
	178	if (Intp.IsDone()) {
	179	if ((!Intp.IsEmpty())&&(!Intp.ParallelElements())&&
	180	(!Intp.IdenticalElements())) {
	181	for (Standard_Integer j = 1 ; j <= Intp.NbPoints() ; j++) {
	182	gp_Pnt2d Center(Intp.Point(j).Value());
	183	Standard_Real dist1 = Center.Distance(center1);
	184	Standard_Real dist2 = L2.Distance(Center);
	185	// Standard_Integer nbsol = 1;
	186	Standard_Boolean ok = Standard_False;
	187	if (Qualified1.IsEnclosed()) {
	188	if (dist1-R1 < Tolerance) {
	189	if (Abs(Abs(R1-dist1)-dist2)<Tolerance) { ok=Standard_True; }
	190	}
	191	}
	192	else if (Qualified1.IsOutside()) {
	193	if (R1-dist1 < Tolerance) {
	194	if (Abs(Abs(R1-dist1)-dist2)<Tolerance) { ok=Standard_True; }
	195	}
	196	}
	197	else if (Qualified1.IsEnclosing() \|\| Qualified1.IsUnqualified()) {
	198	ok = Standard_True;
	199	}
	200	if (Qualified2.IsEnclosed() && ok) {
	201	if ((((origin2.X()-Center.X())*(-dirL2.Y()))+
	202	((origin2.Y()-Center.Y())*(dirL2.X())))<=0){
	203	ok = Standard_True;
	204	Radius = dist2;
	205	}
	206	}
	207	else if (Qualified2.IsOutside() && ok) {
	208	if ((((origin2.X()-Center.X())*(-dirL2.Y()))+
	209	((origin2.Y()-Center.Y())*(dirL2.X())))>=0){
	210	ok = Standard_True;
	211	Radius = dist2;
	212	}
	213	}
	214	else if (Qualified2.IsUnqualified() && ok) {
	215	ok = Standard_True;
	216	Radius = dist2;
	217	}
	218	if (ok) {
	219	NbrSol++;
	220	cirsol(NbrSol) = gp_Circ2d(gp_Ax2d(Center,dirx),Radius);
	221	// =======================================================
	222	gp_Dir2d dc2(origin2.XY()-Center.XY());
	223	distcc1 = Center.Distance(center1);
	224	if (!Qualified1.IsUnqualified()) {
	225	qualifier1(NbrSol) = Qualified1.Qualifier();
	226	}
227	else if (Abs(distcc1+Radius-R1) < Tol) {
228	qualifier1(NbrSol) = GccEnt_enclosed;
229	}
230	else if (Abs(distcc1-R1-Radius) < Tol) {
231	qualifier1(NbrSol) = GccEnt_outside;
232	}
233	else { qualifier1(NbrSol) = GccEnt_enclosing; }
234	if (!Qualified2.IsUnqualified()) {
235	qualifier2(NbrSol) = Qualified2.Qualifier();
236	}
237	else if (dc2.Dot(normL2) > 0.0) {
238	qualifier2(NbrSol) = GccEnt_outside;
239	}
240	else { qualifier2(NbrSol) = GccEnt_enclosed; }
241	if (Center.Distance(center1) <= Tolerance &&
242	Abs(Radius-C1.Radius()) <= Tolerance) {
243	TheSame1(NbrSol) = 1;
244	}
245	else {
246	TheSame1(NbrSol) = 0;
247	gp_Dir2d dc1(center1.XY()-Center.XY());
248	pnttg1sol(NbrSol) = gp_Pnt2d(Center.XY()+Radius*dc1.XY());
249	par1sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),
250	pnttg1sol(NbrSol));
251	pararg1(NbrSol)=ElCLib::Parameter(C1,pnttg1sol(NbrSol));
252	}
253	TheSame2(NbrSol) = 0;
254	Standard_Real sign = dc2.Dot(gp_Dir2d(normL2.XY()));
255	dc2 = gp_Dir2d(sign*gp_XY(normL2.XY()));
256	pnttg2sol(NbrSol) = gp_Pnt2d(Center.XY()+Radius*dc2.XY());
257	par2sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),
258	pnttg2sol(NbrSol));
259	pararg2(NbrSol)=ElCLib::Parameter(L2,pnttg2sol(NbrSol));
260	pntcen(NbrSol) = Center;
261	parcen3(NbrSol)=ElCLib::Parameter(OnCirc,pntcen(NbrSol));
262	}
263	}
264	}
265	WellDone = Standard_True;
266	}
267	}
268	}
269	}
270