// This file is generated by WOK (CPPExt). // Please do not edit this file; modify original file instead. // The copyright and license terms as defined for the original file apply to // this header file considered to be the "object code" form of the original source. #ifndef _Geom2d_Line_HeaderFile #define _Geom2d_Line_HeaderFile #ifndef _Standard_HeaderFile #include #endif #ifndef _Standard_DefineHandle_HeaderFile #include #endif #ifndef _Handle_Geom2d_Line_HeaderFile #include #endif #ifndef _gp_Ax2d_HeaderFile #include #endif #ifndef _Geom2d_Curve_HeaderFile #include #endif #ifndef _Standard_Real_HeaderFile #include #endif #ifndef _Standard_Boolean_HeaderFile #include #endif #ifndef _GeomAbs_Shape_HeaderFile #include #endif #ifndef _Standard_Integer_HeaderFile #include #endif #ifndef _Handle_Geom2d_Geometry_HeaderFile #include #endif class Standard_RangeError; class gp_Ax2d; class gp_Lin2d; class gp_Pnt2d; class gp_Dir2d; class gp_Vec2d; class gp_Trsf2d; class Geom2d_Geometry; //! Describes an infinite line in the plane (2D space).
//! A line is defined and positioned in the plane with an
//! axis (gp_Ax2d object) which gives it an origin and a unit vector.
//! The Geom2d_Line line is parameterized as follows:
//! P (U) = O + U*Dir
//! where:
//! - P is the point of parameter U,
//! - O is the origin and Dir the unit vector of its positioning axis.
//! The parameter range is ] -infinite, +infinite [.
//! The orientation of the line is given by the unit vector
//! of its positioning axis.
//! See Also
//! GCE2d_MakeLine which provides functions for more
//! complex line constructions
//! gp_Ax2d
//! gp_Lin2d for an equivalent, non-parameterized data structure.
class Geom2d_Line : public Geom2d_Curve { public: //! Creates a line located in 2D space with the axis placement A.
//! The Location of A is the origin of the line.
Standard_EXPORT Geom2d_Line(const gp_Ax2d& A); //! Creates a line by conversion of the gp_Lin2d line L.
Standard_EXPORT Geom2d_Line(const gp_Lin2d& L); //! Constructs a line passing through point P and parallel to
//! vector V (P and V are, respectively, the origin
//! and the unit vector of the positioning axis of the line).
Standard_EXPORT Geom2d_Line(const gp_Pnt2d& P,const gp_Dir2d& V); //! Set so that has the same geometric properties as L.
Standard_EXPORT void SetLin2d(const gp_Lin2d& L) ; //! changes the direction of the line.
Standard_EXPORT void SetDirection(const gp_Dir2d& V) ; //! changes the direction of the line.
Standard_EXPORT const gp_Dir2d& Direction() const; //! Changes the "Location" point (origin) of the line.
Standard_EXPORT void SetLocation(const gp_Pnt2d& P) ; //! Changes the "Location" point (origin) of the line.
Standard_EXPORT const gp_Pnt2d& Location() const; //! Changes the "Location" and a the "Direction" of .
Standard_EXPORT void SetPosition(const gp_Ax2d& A) ; Standard_EXPORT const gp_Ax2d& Position() const; //! Returns non persistent line from gp with the same geometric
//! properties as
Standard_EXPORT gp_Lin2d Lin2d() const; //! Changes the orientation of this line. As a result, the
//! unit vector of the positioning axis of this line is reversed.
Standard_EXPORT void Reverse() ; //! Computes the parameter on the reversed line for the
//! point of parameter U on this line.
//! For a line, the returned value is -U.
Standard_EXPORT Standard_Real ReversedParameter(const Standard_Real U) const; //! Returns RealFirst from Standard.
Standard_EXPORT Standard_Real FirstParameter() const; //! Returns RealLast from Standard
Standard_EXPORT Standard_Real LastParameter() const; //! Returns False
Standard_EXPORT Standard_Boolean IsClosed() const; //! Returns False
Standard_EXPORT Standard_Boolean IsPeriodic() const; //! Returns GeomAbs_CN, which is the global continuity of any line.
Standard_EXPORT GeomAbs_Shape Continuity() const; //! Computes the distance between and the point P.
Standard_EXPORT Standard_Real Distance(const gp_Pnt2d& P) const; //! Returns True.
Standard_EXPORT Standard_Boolean IsCN(const Standard_Integer N) const; //! Returns in P the point of parameter U.
//! P (U) = O + U * Dir where O is the "Location" point of the
//! line and Dir the direction of the line.
Standard_EXPORT void D0(const Standard_Real U,gp_Pnt2d& P) const; //! Returns the point P of parameter u and the first derivative V1.
Standard_EXPORT void D1(const Standard_Real U,gp_Pnt2d& P,gp_Vec2d& V1) const; //! Returns the point P of parameter U, the first and second
//! derivatives V1 and V2. V2 is a vector with null magnitude
//! for a line.
Standard_EXPORT void D2(const Standard_Real U,gp_Pnt2d& P,gp_Vec2d& V1,gp_Vec2d& V2) const; //! V2 and V3 are vectors with null magnitude for a line.
Standard_EXPORT void D3(const Standard_Real U,gp_Pnt2d& P,gp_Vec2d& V1,gp_Vec2d& V2,gp_Vec2d& V3) const; //! For the point of parameter U of this line, computes
//! the vector corresponding to the Nth derivative.
//! Note: if N is greater than or equal to 2, the result is a
//! vector with null magnitude.
//! Exceptions Standard_RangeError if N is less than 1.
Standard_EXPORT gp_Vec2d DN(const Standard_Real U,const Standard_Integer N) const; //! Applies the transformation T to this line.
Standard_EXPORT void Transform(const gp_Trsf2d& T) ; //! Computes the parameter on the line transformed by
//! T for the point of parameter U on this line.
//! For a line, the returned value is equal to U multiplied
//! by the scale factor of transformation T.
Standard_EXPORT virtual Standard_Real TransformedParameter(const Standard_Real U,const gp_Trsf2d& T) const; //! Returns the coefficient required to compute the
//! parametric transformation of this line when
//! transformation T is applied. This coefficient is the
//! ratio between the parameter of a point on this line
//! and the parameter of the transformed point on the
//! new line transformed by T.
//! For a line, the returned value is the scale factor of the transformation T.
Standard_EXPORT virtual Standard_Real ParametricTransformation(const gp_Trsf2d& T) const; //! Creates a new object, which is a copy of this line.
Standard_EXPORT Handle_Geom2d_Geometry Copy() const; DEFINE_STANDARD_RTTI(Geom2d_Line) protected: private: gp_Ax2d pos; }; // other Inline functions and methods (like "C++: function call" methods) #endif