--- /dev/null
+// File GccAna_Circ2d3Tan_1.cxx, REG 08/07/91
+
+#include <GccAna_Circ2d3Tan.jxx>
+
+#include <IntAna2d_AnaIntersection.hxx>
+#include <IntAna2d_IntPoint.hxx>
+#include <ElCLib.hxx>
+#include <gp_Lin2d.hxx>
+#include <gp_Circ2d.hxx>
+#include <gp_Dir2d.hxx>
+#include <TColStd_Array1OfReal.hxx>
+#include <GccAna_CircLin2dBisec.hxx>
+#include <GccInt_IType.hxx>
+#include <GccInt_BLine.hxx>
+#include <GccInt_BParab.hxx>
+#include <IntAna2d_Conic.hxx>
+#include <TColStd_Array1OfReal.hxx>
+#include <GccEnt_BadQualifier.hxx>
+#include <Precision.hxx>
+
+//=========================================================================
+// Creation d un cercle tangent a deux cercles et a une droite. +
+//=========================================================================
+
+GccAna_Circ2d3Tan::
+ GccAna_Circ2d3Tan (const GccEnt_QualifiedCirc& Qualified1,
+ const GccEnt_QualifiedCirc& Qualified2,
+ const GccEnt_QualifiedLin& Qualified3,
+ const Standard_Real Tolerance ):
+
+//=========================================================================
+// Initialisation des champs. +
+//=========================================================================
+
+ cirsol(1,16) ,
+ qualifier1(1,16) ,
+ qualifier2(1,16) ,
+ qualifier3(1,16),
+ TheSame1(1,16) ,
+ TheSame2(1,16) ,
+ TheSame3(1,16) ,
+ pnttg1sol(1,16) ,
+ pnttg2sol(1,16) ,
+ pnttg3sol(1,16) ,
+ par1sol(1,16) ,
+ par2sol(1,16) ,
+ par3sol(1,16) ,
+ pararg1(1,16) ,
+ pararg2(1,16) ,
+ pararg3(1,16)
+{
+
+ gp_Dir2d dirx(1.0,0.0);
+ Standard_Real Tol = Abs(Tolerance);
+ WellDone = Standard_False;
+ NbrSol = 0;
+ if (!(Qualified1.IsEnclosed() || Qualified1.IsEnclosing() ||
+ Qualified1.IsOutside() || Qualified1.IsUnqualified()) ||
+ !(Qualified2.IsEnclosed() || Qualified2.IsEnclosing() ||
+ Qualified2.IsOutside() || Qualified2.IsUnqualified()) ||
+ !(Qualified3.IsEnclosed() ||
+ Qualified3.IsOutside() || Qualified3.IsUnqualified())) {
+ GccEnt_BadQualifier::Raise();
+ return;
+ }
+
+//=========================================================================
+// Traitement. +
+//=========================================================================
+
+ gp_Circ2d C1 = Qualified1.Qualified();
+ gp_Circ2d C2 = Qualified2.Qualified();
+ gp_Lin2d L3 = Qualified3.Qualified();
+ Standard_Real R1 = C1.Radius();
+ Standard_Real R2 = C2.Radius();
+ gp_Pnt2d center1(C1.Location());
+#ifdef DEB
+ gp_Pnt2d center2(C2.Location());
+#else
+ C2.Location() ;
+#endif
+ gp_Pnt2d origin3(L3.Location());
+ gp_Dir2d dir3(L3.Direction());
+ gp_Dir2d normL3(-dir3.Y(),dir3.X());
+
+ TColStd_Array1OfReal Radius(1,2);
+ GccAna_CircLin2dBisec Bis1(C1,L3);
+ GccAna_CircLin2dBisec Bis2(C2,L3);
+ if (Bis1.IsDone() && Bis2.IsDone()) {
+ Standard_Integer nbsolution1 = Bis1.NbSolutions();
+ Standard_Integer nbsolution2 = Bis2.NbSolutions();
+ for (Standard_Integer i = 1 ; i <= nbsolution1; i++) {
+ Handle(GccInt_Bisec) Sol1 = Bis1.ThisSolution(i);
+ GccInt_IType typ1 = Sol1->ArcType();
+ IntAna2d_AnaIntersection Intp;
+ for (Standard_Integer k = 1 ; k <= nbsolution2; k++) {
+ Handle(GccInt_Bisec) Sol2 = Bis2.ThisSolution(k);
+ GccInt_IType typ2 = Sol2->ArcType();
+ if (typ1 == GccInt_Lin) {
+ if (typ2 == GccInt_Lin) {
+ Intp.Perform(Sol1->Line(),Sol2->Line());
+ }
+ else if (typ2 == GccInt_Par) {
+ Intp.Perform(Sol1->Line(),IntAna2d_Conic(Sol2->Parabola()));
+ }
+ }
+ else if (typ1 == GccInt_Par) {
+ if (typ2 == GccInt_Lin) {
+ Intp.Perform(Sol2->Line(),IntAna2d_Conic(Sol1->Parabola()));
+ }
+ else if (typ2 == GccInt_Par) {
+ Intp.Perform(Sol1->Parabola(),IntAna2d_Conic(Sol2->Parabola()));
+ }
+ }
+ if (Intp.IsDone()) {
+ if (!Intp.IsEmpty()) {
+ for (Standard_Integer j = 1 ; j <= Intp.NbPoints() ; j++) {
+ Standard_Real Rradius=0;
+ gp_Pnt2d Center(Intp.Point(j).Value());
+
+// pop : si les coordonnes sont trop grandes ( qu'est trop grand : avoir ) pas de creation
+ if (Center.X() > 1e10 ||
+ Center.Y() > 1e10 ) break;
+
+ Standard_Real dist1 = Center.Distance(C1.Location());
+ Standard_Real dist2 = Center.Distance(C2.Location());
+ Standard_Real dist3 = L3.Distance(Center);
+
+// pop : si les coordonnes sont trop grandes ( qu'est trop grand : avoir ) pas de creation
+ if (dist3 > 1e10 ) break;
+
+ Standard_Integer nbsol1 = 0;
+ Standard_Integer nbsol2 = 0;
+ Standard_Integer nbsol3 = 0;
+ Standard_Boolean ok = Standard_False;
+ if (Qualified1.IsEnclosed()) {
+ if (dist1-R1 < Tolerance) {
+ Radius(1) = Abs(R1-dist1);
+ nbsol1 = 1;
+ ok = Standard_True;
+ }
+ }
+ else if (Qualified1.IsOutside()) {
+ if (R1-dist1 < Tolerance) {
+ Radius(1) = Abs(R1-dist1);
+ nbsol1 = 1;
+ ok = Standard_True;
+ }
+ }
+ else if (Qualified1.IsEnclosing()) {
+ ok = Standard_True;
+ nbsol1 = 1;
+ Radius(1) = Abs(R1-dist1);
+ }
+ else if (Qualified1.IsUnqualified()) {
+ ok = Standard_True;
+ nbsol1 = 2;
+ Radius(1) = Abs(R1-dist1);
+ Radius(2) = R1+dist1;
+ }
+ if (Qualified2.IsEnclosed() && ok) {
+ if (dist2-R2 < Tolerance) {
+ for (Standard_Integer ii = 1 ; ii <= nbsol1 ; ii++) {
+ if (Abs(Radius(ii)-Abs(R2-dist2)) < Tol) {
+ Radius(1) = Abs(R2-dist2);
+ ok = Standard_True;
+ nbsol2 = 1;
+ }
+ }
+ }
+ }
+ else if (Qualified2.IsOutside() && ok) {
+ if (R2-dist2 < Tolerance) {
+ for (Standard_Integer ii = 1 ; ii <= nbsol1 ; ii++) {
+ if (Abs(Radius(ii)-Abs(R2-dist2)) < Tol) {
+ Radius(1) = Abs(R2-dist2);
+ ok = Standard_True;
+ nbsol2 = 1;
+ }
+ }
+ }
+ }
+ else if (Qualified2.IsEnclosing() && ok) {
+ for (Standard_Integer ii = 1 ; ii <= nbsol1 ; ii++) {
+ if (Abs(Radius(ii)-R2-dist2) < Tol) {
+ Radius(1) = R2+dist2;
+ ok = Standard_True;
+ nbsol2 = 1;
+ }
+ }
+ }
+ else if (Qualified2.IsUnqualified() && ok) {
+ for (Standard_Integer ii = 1 ; ii <= nbsol1 ; ii++) {
+ if (Abs(Radius(ii)-Abs(R2-dist2)) < Tol) {
+ Rradius = Abs(R2-dist2);
+ ok = Standard_True;
+ nbsol2++;
+ }
+ else if (Abs(Radius(ii)-R2-dist2) < Tol) {
+ Rradius = R2+dist2;
+ ok = Standard_True;
+ nbsol2++;
+ }
+ }
+ if (nbsol2 == 1) {
+ Radius(1) = Rradius;
+ }
+ else if (nbsol2 == 2) {
+ Radius(1) = Abs(R2-dist2);
+ Radius(2) = R2+dist2;
+ }
+ }
+ if (Qualified3.IsEnclosed() && ok) {
+ if ((((L3.Location().X()-Center.X())*(-L3.Direction().Y()))+
+ ((L3.Location().Y()-Center.Y())*(L3.Direction().X())))<=0){
+ ok = Standard_True;
+ nbsol3 = 1;
+ }
+ }
+ else if (Qualified2.IsOutside() && ok) {
+ if ((((L3.Location().X()-Center.X())*(-L3.Direction().Y()))+
+ ((L3.Location().Y()-Center.Y())*(L3.Direction().X())))>=0){
+ ok = Standard_True;
+ nbsol3 = 1;
+ }
+ }
+ else if (Qualified2.IsUnqualified() && ok) {
+ ok = Standard_True;
+ nbsol3 = 1;
+ }
+ if (ok) {
+ for (Standard_Integer ind3 = 1 ; ind3 <= nbsol3 ; ind3++) {
+ NbrSol++;
+ cirsol(NbrSol) = gp_Circ2d(gp_Ax2d(Center,dirx),Radius(ind3));
+// ==========================================================
+ Standard_Real distcc1 = Center.Distance(center1);
+ if (!Qualified1.IsUnqualified()) {
+ qualifier1(NbrSol) = Qualified1.Qualifier();
+ }
+ else if (Abs(distcc1+Radius(ind3)-R1) < Tol) {
+ qualifier1(NbrSol) = GccEnt_enclosed;
+ }
+ else if (Abs(distcc1-R1-Radius(ind3)) < Tol) {
+ qualifier1(NbrSol) = GccEnt_outside;
+ }
+ else { qualifier1(NbrSol) = GccEnt_enclosing; }
+ Standard_Real distcc2 = Center.Distance(center1);
+ if (!Qualified2.IsUnqualified()) {
+ qualifier2(NbrSol) = Qualified2.Qualifier();
+ }
+ else if (Abs(distcc2+Radius(ind3)-R2) < Tol) {
+ qualifier2(NbrSol) = GccEnt_enclosed;
+ }
+ else if (Abs(distcc2-R2-Radius(ind3)) < Tol) {
+ qualifier2(NbrSol) = GccEnt_outside;
+ }
+ else { qualifier2(NbrSol) = GccEnt_enclosing; }
+ gp_Dir2d dc3(origin3.XY()-Center.XY());
+ if (!Qualified3.IsUnqualified()) {
+ qualifier3(NbrSol) = Qualified3.Qualifier();
+ }
+ else if (dc3.Dot(normL3) > 0.0) {
+ qualifier3(NbrSol) = GccEnt_outside;
+ }
+ else { qualifier3(NbrSol) = GccEnt_enclosed; }
+ if (Center.Distance(C1.Location()) <= Tolerance &&
+ Abs(Radius(ind3)-R1) <= Tolerance) {
+ TheSame1(NbrSol) = 1;
+ }
+ else {
+ TheSame1(NbrSol) = 0;
+ gp_Dir2d dc(C1.Location().XY()-Center.XY());
+ pnttg1sol(NbrSol)=gp_Pnt2d(Center.XY()+Radius(ind3)*dc.XY());
+ // POP pour portection dans le cas ou cirsol(NbrSol).Location == pnttg1sol(NbrSol)
+ if (cirsol(NbrSol).Location().IsEqual(pnttg1sol(NbrSol),Precision::Confusion()))
+ par1sol(NbrSol)=1;
+ else
+ par1sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),
+ pnttg1sol(NbrSol));
+ // POP pour portection dans le cas ou C1.Location == pnttg1sol(NbrSol)
+ if (C1.Location().IsEqual(pnttg1sol(NbrSol),Precision::Confusion()))
+ pararg1(NbrSol)=1;
+ else
+ pararg1(NbrSol)=ElCLib::Parameter(C1,pnttg1sol(NbrSol));
+ }
+ if (Center.Distance(C2.Location()) <= Tolerance &&
+ Abs(Radius(ind3)-R2) <= Tolerance) {
+ TheSame2(NbrSol) = 1;
+ }
+ else {
+ TheSame2(NbrSol) = 0;
+ gp_Dir2d dc(C2.Location().XY()-Center.XY());
+ pnttg2sol(NbrSol)=gp_Pnt2d(Center.XY()+Radius(ind3)*dc.XY());
+ // POP pour portection dans le cas ou cirsol(NbrSol).Location == pnttg1sol(NbrSol)
+ if (cirsol(NbrSol).Location().IsEqual(pnttg1sol(NbrSol),Precision::Confusion()))
+ par1sol(NbrSol)=1;
+ else
+ par2sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),
+ pnttg2sol(NbrSol));
+ // POP pour portection dans le cas ou C2.Location == pnttg2sol(NbrSol)
+ if (C2.Location().IsEqual(pnttg2sol(NbrSol),Precision::Confusion()))
+ pararg2(NbrSol)=1;
+ else
+ pararg2(NbrSol)=ElCLib::Parameter(C2,pnttg2sol(NbrSol));
+ }
+ TheSame3(NbrSol) = 0;
+ gp_Dir2d dc(L3.Location().XY()-Center.XY());
+ Standard_Real sign = dc.Dot(gp_Dir2d(-L3.Direction().Y(),
+ L3.Direction().X()));
+ dc = gp_Dir2d(sign*gp_XY(-L3.Direction().Y(),
+ L3.Direction().X()));
+ pnttg3sol(NbrSol) = gp_Pnt2d(Center.XY()+Radius(ind3)*dc.XY());
+ par3sol(NbrSol)=ElCLib::Parameter(cirsol(NbrSol),
+ pnttg3sol(NbrSol));
+ pararg3(NbrSol)=ElCLib::Parameter(L3,pnttg3sol(NbrSol));
+ }
+ }
+ }
+ }
+ WellDone = Standard_True;
+ }
+ }
+ }
+ }
+}
projects / occt.git / blobdiff