Open CASCADE Technology
7.6.0

This class implements the algorithms used to create 2d line tangent to a circle or a point and parallel to another line. The solution has the same orientation as the second argument. Describes functions for building a 2D line parallel to a line and: More...
#include <GccAna_Lin2dTanPar.hxx>
Public Member Functions  
GccAna_Lin2dTanPar (const gp_Pnt2d &ThePoint, const gp_Lin2d &Lin1)  
This method implements the algorithms used to create a 2d line passing through a point and parallel to another line. More...  
GccAna_Lin2dTanPar (const GccEnt_QualifiedCirc &Qualified1, const gp_Lin2d &Lin1)  
This method implements the algorithms used to create a 2d line tangent to a circle and parallel to another line. It raises BadQualifier in case of EnclosedCirc. Exceptions GccEnt_BadQualifier if a qualifier is inconsistent with the argument it qualifies (for example, enclosed for 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...  
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  WhichQualifier (const Standard_Integer Index, GccEnt_Position &Qualif1) const 
Returns the information about the qualifiers of the tangency arguments concerning the solution number Index. It returns the real qualifiers (the qualifiers given to the constructor method in case of enclosed, enclosing and outside and the qualifiers computed in case of unqualified). 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 information 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. ParArg is equal 0 when the solution is passing through a point. 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 line tangent to a circle or a point and parallel to another line. The solution has the same orientation as the second argument. Describes functions for building a 2D line parallel to a line and:
This method implements the algorithms used to create a 2d line passing through a point and parallel to another line.
GccAna_Lin2dTanPar::GccAna_Lin2dTanPar  (  const GccEnt_QualifiedCirc &  Qualified1, 
const gp_Lin2d &  Lin1  
) 
This method implements the algorithms used to create a 2d line tangent to a circle and parallel to another line. It raises BadQualifier in case of EnclosedCirc. Exceptions GccEnt_BadQualifier if a qualifier is inconsistent with the argument it qualifies (for example, enclosed for a circle).
Standard_Boolean GccAna_Lin2dTanPar::IsDone  (  )  const 
Returns True if the algorithm succeeded.
Standard_Integer GccAna_Lin2dTanPar::NbSolutions  (  )  const 
Returns the number of solutions. Raises NotDone if the construction algorithm didn't succeed.
void GccAna_Lin2dTanPar::Tangency1  (  const Standard_Integer  Index, 
Standard_Real &  ParSol,  
Standard_Real &  ParArg,  
gp_Pnt2d &  Pnt  
)  const 
Returns information 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. ParArg is equal 0 when the solution is passing through a point. Raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions.
gp_Lin2d GccAna_Lin2dTanPar::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_Lin2dTanPar::WhichQualifier  (  const Standard_Integer  Index, 
GccEnt_Position &  Qualif1  
)  const 
Returns the information about the qualifiers of the tangency arguments concerning the solution number Index. It returns the real qualifiers (the qualifiers given to the constructor method in case of enclosed, enclosing and outside and the qualifiers computed in case of unqualified). Raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions.