Open CASCADE Technology
6.9.1

This class implements the algorithms used to create 2d lines tangent to a circle or a point and perpendicular to a line or a circle. Describes functions for building a 2D line perpendicular to a line and: More...
#include <GccAna_Lin2dTanPer.hxx>
Public Member Functions  
GccAna_Lin2dTanPer (const gp_Pnt2d &ThePnt, const gp_Lin2d &TheLin)  
This method implements the algorithms used to create 2d lines passing through a point and perpendicular to a line. More...  
GccAna_Lin2dTanPer (const gp_Pnt2d &ThePnt, const gp_Circ2d &TheCircle)  
This method implements the algorithms used to create 2d lines passing through a point and perpendicular to a circle. More...  
GccAna_Lin2dTanPer (const GccEnt_QualifiedCirc &Qualified1, const gp_Lin2d &TheLin)  
This method implements the algorithms used to create 2d lines tangent to a circle and perpendicular to a line. More...  
GccAna_Lin2dTanPer (const GccEnt_QualifiedCirc &Qualified1, const gp_Circ2d &TheCircle)  
This method implements the algorithms used to create 2d lines tangent to a circle and perpendicular to a circle. More...  
Standard_Boolean  IsDone () const 
Returns True if the algorithm succeeded. More...  
Standard_Integer  NbSolutions () const 
Returns the number of solutions. Raises NotDone if the construction algorithm didn't succeed. More...  
void  WhichQualifier (const Standard_Integer Index, GccEnt_Position &Qualif1) const 
Returns the qualifier Qualif1 of the tangency argument for the solution of index Index computed by this algorithm. The returned qualifier is: More...  
gp_Lin2d  ThisSolution (const Standard_Integer Index) const 
Returns the solution number Index and raises OutOfRange exception if Index is greater than the number of solutions. Be careful: the Index is only a way to get all the solutions, but is not associated to those outside the context of the algorithmobject. Raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions. More...  
void  Tangency1 (const Standard_Integer Index, Standard_Real &ParSol, Standard_Real &ParArg, gp_Pnt2d &Pnt) const 
Returns informations about the tangency point between the result number Index and the first argument. ParSol is the intrinsic parameter of the point on the solution curv. ParArg is the intrinsic parameter of the point on the argument curv. If the first argument is a point ParArg is equal zero. raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions. More...  
void  Intersection2 (const Standard_Integer Index, Standard_Real &ParSol, Standard_Real &ParArg, gp_Pnt2d &PntSol) const 
Returns informations about the intersection between the solution number Index and the second argument. It returns the first intersection in a case of Lin2dTanPer which is perpendicular to a circle . ParSol is the intrinsic parameter of the point on the solution curv. ParArg is the intrinsic parameter of the point on the argument curv. Raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions. More...  
This class implements the algorithms used to create 2d lines tangent to a circle or a point and perpendicular to a line or a circle. Describes functions for building a 2D line perpendicular to a line and:
This method implements the algorithms used to create 2d lines passing through a point and perpendicular to a line.
This method implements the algorithms used to create 2d lines passing through a point and perpendicular to a circle.
GccAna_Lin2dTanPer::GccAna_Lin2dTanPer  (  const GccEnt_QualifiedCirc &  Qualified1, 
const gp_Lin2d &  TheLin  
) 
This method implements the algorithms used to create 2d lines tangent to a circle and perpendicular to a line.
GccAna_Lin2dTanPer::GccAna_Lin2dTanPer  (  const GccEnt_QualifiedCirc &  Qualified1, 
const gp_Circ2d &  TheCircle  
) 
This method implements the algorithms used to create 2d lines tangent to a circle and perpendicular to a circle.
void GccAna_Lin2dTanPer::Intersection2  (  const Standard_Integer  Index, 
Standard_Real &  ParSol,  
Standard_Real &  ParArg,  
gp_Pnt2d &  PntSol  
)  const 
Returns informations about the intersection between the solution number Index and the second argument. It returns the first intersection in a case of Lin2dTanPer which is perpendicular to a circle . ParSol is the intrinsic parameter of the point on the solution curv. ParArg is the intrinsic parameter of the point on the argument curv. Raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions.
Standard_Boolean GccAna_Lin2dTanPer::IsDone  (  )  const 
Returns True if the algorithm succeeded.
Standard_Integer GccAna_Lin2dTanPer::NbSolutions  (  )  const 
Returns the number of solutions. Raises NotDone if the construction algorithm didn't succeed.
void GccAna_Lin2dTanPer::Tangency1  (  const Standard_Integer  Index, 
Standard_Real &  ParSol,  
Standard_Real &  ParArg,  
gp_Pnt2d &  Pnt  
)  const 
Returns informations about the tangency point between the result number Index and the first argument. ParSol is the intrinsic parameter of the point on the solution curv. ParArg is the intrinsic parameter of the point on the argument curv. If the first argument is a point ParArg is equal zero. raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions.
gp_Lin2d GccAna_Lin2dTanPer::ThisSolution  (  const Standard_Integer  Index  )  const 
Returns the solution number Index and raises OutOfRange exception if Index is greater than the number of solutions. Be careful: the Index is only a way to get all the solutions, but is not associated to those outside the context of the algorithmobject. Raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions.
void GccAna_Lin2dTanPer::WhichQualifier  (  const Standard_Integer  Index, 
GccEnt_Position &  Qualif1  
)  const 
Returns the qualifier Qualif1 of the tangency argument for the solution of index Index computed by this algorithm. The returned qualifier is: