Open CASCADE Technology
7.7.0

This class implements the algorithms used to create 2d line tangent to a circle or a point and making an angle with a line. The angle is in radians. The origin of the solution is the tangency point with the first argument. Its direction is making an angle Angle with the second argument. More...
#include <GccAna_Lin2dTanObl.hxx>
Public Member Functions  
GccAna_Lin2dTanObl (const gp_Pnt2d &ThePoint, const gp_Lin2d &TheLine, const Standard_Real TheAngle)  
This class implements the algorithms used to create 2d line passing through a point and making an angle with a line. More...  
GccAna_Lin2dTanObl (const GccEnt_QualifiedCirc &Qualified1, const gp_Lin2d &TheLine, const Standard_Real TheAngle)  
This class implements the algorithms used to create 2d line tangent to a circle and making an angle with a line. 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. Note: IsDone protects against a failure arising from a more internal intersection algorithm, which has reached its numeric limits. More...  
Standard_Integer  NbSolutions () const 
Returns the number of of lines, representing solutions computed by this algorithm. Raises NotDone if the construction algorithm didn't succeed. More...  
gp_Lin2d  ThisSolution (const Standard_Integer Index) const 
Returns the solution number Index. Be careful: the Index is only a way to get all the solutions, but is not associated to these 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 qualifier Qualif1 of the tangency argument for the solution of index Index computed by this algorithm. The returned qualifier is: More...  
void  Tangency1 (const Standard_Integer Index, Standard_Real &ParSol, Standard_Real &ParArg, gp_Pnt2d &PntSol) const 
Returns information about the tangency point between the result number Index and the first argument. ParSol is the intrinsic parameter of the point ParSol on the solution curv. ParArg is the intrinsic parameter of the point ParArg 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...  
void  Intersection2 (const Standard_Integer Index, Standard_Real &ParSol, Standard_Real &ParArg, gp_Pnt2d &PntSol) const 
Returns information about the intersection between the result number Index and the third argument. 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 making an angle with a line. The angle is in radians. The origin of the solution is the tangency point with the first argument. Its direction is making an angle Angle with the second argument.
GccAna_Lin2dTanObl::GccAna_Lin2dTanObl  (  const gp_Pnt2d &  ThePoint, 
const gp_Lin2d &  TheLine,  
const Standard_Real  TheAngle  
) 
This class implements the algorithms used to create 2d line passing through a point and making an angle with a line.
GccAna_Lin2dTanObl::GccAna_Lin2dTanObl  (  const GccEnt_QualifiedCirc &  Qualified1, 
const gp_Lin2d &  TheLine,  
const Standard_Real  TheAngle  
) 
This class implements the algorithms used to create 2d line tangent to a circle and making an angle with a line. Exceptions GccEnt_BadQualifier if a qualifier is inconsistent with the argument it qualifies (for example, enclosed for a circle).
void GccAna_Lin2dTanObl::Intersection2  (  const Standard_Integer  Index, 
Standard_Real &  ParSol,  
Standard_Real &  ParArg,  
gp_Pnt2d &  PntSol  
)  const 
Returns information about the intersection between the result number Index and the third argument. Raises NotDone if the construction algorithm didn't succeed. It raises OutOfRange if Index is greater than the number of solutions.
Standard_Boolean GccAna_Lin2dTanObl::IsDone  (  )  const 
Returns True if the algorithm succeeded. Note: IsDone protects against a failure arising from a more internal intersection algorithm, which has reached its numeric limits.
Standard_Integer GccAna_Lin2dTanObl::NbSolutions  (  )  const 
Returns the number of of lines, representing solutions computed by this algorithm. Raises NotDone if the construction algorithm didn't succeed.
void GccAna_Lin2dTanObl::Tangency1  (  const Standard_Integer  Index, 
Standard_Real &  ParSol,  
Standard_Real &  ParArg,  
gp_Pnt2d &  PntSol  
)  const 
Returns information about the tangency point between the result number Index and the first argument. ParSol is the intrinsic parameter of the point ParSol on the solution curv. ParArg is the intrinsic parameter of the point ParArg 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.
gp_Lin2d GccAna_Lin2dTanObl::ThisSolution  (  const Standard_Integer  Index  )  const 
Returns the solution number Index. Be careful: the Index is only a way to get all the solutions, but is not associated to these 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_Lin2dTanObl::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: