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Public Member Functions
GccAna_Lin2dTanPar Class Reference

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:
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#include <GccAna_Lin2dTanPar.hxx>

Public Member Functions

DEFINE_STANDARD_ALLOC 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.

 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 IsDone () const
 Returns True if the algorithm succeeded.

Standard_Integer NbSolutions () const
 Returns the number of solutions.
Raises NotDone if the construction algorithm didn't succeed.

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 algorithm-object.
raises NotDone if the construction algorithm
didn't succeed.
It raises OutOfRange if Index is greater than the
number of solutions.

void WhichQualifier (const Standard_Integer Index, GccEnt_Position &Qualif1) const
 Returns the informations 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.

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.
ParArg is equal 0 when the solution is passing thrue
a point. Raises NotDone if the construction algorithm
didn't succeed.
It raises OutOfRange if Index is greater than the
number of solutions.


Detailed Description


Constructor & Destructor Documentation


Member Function Documentation

void GccAna_Lin2dTanPar::Tangency1 ( const Standard_Integer  Index,
Standard_Real ParSol,
Standard_Real ParArg,
gp_Pnt2d Pnt 
) const

The documentation for this class was generated from the following file: