liboce-foundation-dev 0.17.2-2 / usr / include / oce / gp_Circ2d.hxx

// 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 _gp_Circ2d_HeaderFile
#define _gp_Circ2d_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Macro.hxx>

#include <gp_Ax22d.hxx>
#include <Standard_Real.hxx>
#include <Standard_Storable.hxx>
#include <Standard_Boolean.hxx>
#include <gp_Ax2d.hxx>
#include <Standard_PrimitiveTypes.hxx>
class Standard_ConstructionError;
class gp_Ax2d;
class gp_Ax22d;
class gp_Pnt2d;
class gp_Trsf2d;
class gp_Vec2d;


Standard_EXPORT const Handle(Standard_Type)& STANDARD_TYPE(gp_Circ2d);

//! Describes a circle in the plane (2D space).
//! A circle is defined by its radius and positioned in the
//! plane with a coordinate system (a gp_Ax22d object) as follows:
//! -   the origin of the coordinate system is the center of the circle, and
//! -   the orientation (direct or indirect) of the coordinate
//! system gives an implicit orientation to the circle (and
//! defines its trigonometric sense).
//! This positioning coordinate system is the "local
//! coordinate system" of the circle.
//! Note: when a gp_Circ2d circle is converted into a
//! Geom2d_Circle circle, some implicit properties of the
//! circle are used explicitly:
//! -   the implicit orientation corresponds to the direction in
//! which parameter values increase,
//! -   the starting point for parameterization is that of the "X
//! Axis" of the local coordinate system (i.e. the "X Axis" of the circle).
//! See Also
//! GccAna and Geom2dGcc packages which provide
//! functions for constructing circles defined by geometric constraints
//! gce_MakeCirc2d which provides functions for more
//! complex circle constructions
//! Geom2d_Circle which provides additional functions for
//! constructing circles and works, with the parametric
//! equations of circles in particular  gp_Ax22d
class gp_Circ2d 
{

public:

  DEFINE_STANDARD_ALLOC

  
  //! creates an indefinite circle.
    gp_Circ2d();
  

  //! The location point of XAxis is the center of the circle.
  //! Warnings :
  //! It is not forbidden to create a circle with Radius = 0.0   Raises ConstructionError if Radius < 0.0.
  //! Raised if Radius < 0.0.
    gp_Circ2d(const gp_Ax2d& XAxis, const Standard_Real Radius, const Standard_Boolean Sense = Standard_True);
  

  //! Axis defines the Xaxis and Yaxis of the circle which defines
  //! the origin and the sense of parametrization.
  //! The location point of Axis is the center of the circle.
  //! Warnings :
  //! It is not forbidden to create a circle with Radius = 0.0 Raises ConstructionError if Radius < 0.0.
  //! Raised if Radius < 0.0.
    gp_Circ2d(const gp_Ax22d& Axis, const Standard_Real Radius);
  
  //! Changes the location point (center) of the circle.
  Standard_EXPORT   void SetLocation (const gp_Pnt2d& P) ;
  
  //! Changes the X axis of the circle.
      void SetXAxis (const gp_Ax2d& A) ;
  
  //! Changes the X axis of the circle.
      void SetAxis (const gp_Ax22d& A) ;
  
  //! Changes the Y axis of the circle.
      void SetYAxis (const gp_Ax2d& A) ;
  
  //! Modifies the radius of this circle.
  //! This class does not prevent the creation of a circle where
  //! Radius is null.
  //! Exceptions
  //! Standard_ConstructionError if Radius is negative.
      void SetRadius (const Standard_Real Radius) ;
  
  //! Computes the area of the circle.
      Standard_Real Area()  const;
  

  //! Returns the normalized coefficients from the implicit equation
  //! of the circle :
  //! A * (X**2) + B * (Y**2) + 2*C*(X*Y) + 2*D*X + 2*E*Y + F = 0.0
      void Coefficients (Standard_Real& A, Standard_Real& B, Standard_Real& C, Standard_Real& D, Standard_Real& E, Standard_Real& F)  const;
  
  //! Does <me> contain P ?
  //! Returns True if the distance between P and any point on
  //! the circumference of the circle is lower of equal to
  //! <LinearTolerance>.
      Standard_Boolean Contains (const gp_Pnt2d& P, const Standard_Real LinearTolerance)  const;
  

  //! Computes the minimum of distance between the point P and any
  //! point on the circumference of the circle.
      Standard_Real Distance (const gp_Pnt2d& P)  const;
  

  //! Computes the square distance between <me> and the point P.
      Standard_Real SquareDistance (const gp_Pnt2d& P)  const;
  
  //! computes the circumference of the circle.
      Standard_Real Length()  const;
  
  //! Returns the location point (center) of the circle.
     const  gp_Pnt2d& Location()  const;
  
  //! Returns the radius value of the circle.
      Standard_Real Radius()  const;
  
  //! returns the position of the circle.
     const  gp_Ax22d& Axis()  const;
  
  //! returns the position of the circle. Idem Axis(me).
     const  gp_Ax22d& Position()  const;
  
  //! returns the X axis of the circle.
      gp_Ax2d XAxis()  const;
  
  //! Returns the Y axis of the circle.
  //! Reverses the direction of the circle.
      gp_Ax2d YAxis()  const;
  
  //! Reverses the orientation of the local coordinate system
  //! of this circle (the "Y Direction" is reversed) and therefore
  //! changes the implicit orientation of this circle.
  //! Reverse assigns the result to this circle,
      void Reverse() ;
  
  //! Reverses the orientation of the local coordinate system
  //! of this circle (the "Y Direction" is reversed) and therefore
  //! changes the implicit orientation of this circle.
  //! Reversed creates a new circle.
      gp_Circ2d Reversed()  const;
  
  //! Returns true if the local coordinate system is direct
  //! and false in the other case.
      Standard_Boolean IsDirect()  const;
  
  Standard_EXPORT   void Mirror (const gp_Pnt2d& P) ;
  

  //! Performs the symmetrical transformation of a circle with respect
  //! to the point P which is the center of the symmetry
  Standard_EXPORT   gp_Circ2d Mirrored (const gp_Pnt2d& P)  const;
  
  Standard_EXPORT   void Mirror (const gp_Ax2d& A) ;
  

  //! Performs the symmetrical transformation of a circle with respect
  //! to an axis placement which is the axis of the symmetry.
  Standard_EXPORT   gp_Circ2d Mirrored (const gp_Ax2d& A)  const;
  
      void Rotate (const gp_Pnt2d& P, const Standard_Real Ang) ;
  

  //! Rotates a circle. P is the center of the rotation.
  //! Ang is the angular value of the rotation in radians.
      gp_Circ2d Rotated (const gp_Pnt2d& P, const Standard_Real Ang)  const;
  
      void Scale (const gp_Pnt2d& P, const Standard_Real S) ;
  

  //! Scales a circle. S is the scaling value.
  //! Warnings :
  //! If S is negative the radius stay positive but
  //! the "XAxis" and the "YAxis" are  reversed as for
  //! an ellipse.
      gp_Circ2d Scaled (const gp_Pnt2d& P, const Standard_Real S)  const;
  
      void Transform (const gp_Trsf2d& T) ;
  

  //! Transforms a circle with the transformation T from class Trsf2d.
      gp_Circ2d Transformed (const gp_Trsf2d& T)  const;
  
      void Translate (const gp_Vec2d& V) ;
  

  //! Translates a circle in the direction of the vector V.
  //! The magnitude of the translation is the vector's magnitude.
      gp_Circ2d Translated (const gp_Vec2d& V)  const;
  
      void Translate (const gp_Pnt2d& P1, const gp_Pnt2d& P2) ;
  

  //! Translates a circle from the point P1 to the point P2.
      gp_Circ2d Translated (const gp_Pnt2d& P1, const gp_Pnt2d& P2)  const;
    const gp_Ax22d& _CSFDB_Getgp_Circ2dpos() const { return pos; }
    Standard_Real _CSFDB_Getgp_Circ2dradius() const { return radius; }
    void _CSFDB_Setgp_Circ2dradius(const Standard_Real p) { radius = p; }



protected:




private: 


  gp_Ax22d pos;
  Standard_Real radius;


};


#include <gp_Circ2d.lxx>





#endif // _gp_Circ2d_HeaderFile