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// 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_Parab2d_HeaderFile
#define _gp_Parab2d_HeaderFile
#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif
#ifndef _gp_Ax22d_HeaderFile
#include <gp_Ax22d.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _Standard_Storable_HeaderFile
#include <Standard_Storable.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _gp_Ax2d_HeaderFile
#include <gp_Ax2d.hxx>
#endif
#ifndef _gp_Pnt2d_HeaderFile
#include <gp_Pnt2d.hxx>
#endif
#ifndef _Standard_PrimitiveTypes_HeaderFile
#include <Standard_PrimitiveTypes.hxx>
#endif
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_Parab2d);
//! Describes a parabola in the plane (2D space). <br>
//! A parabola is defined by its focal length (that is, the <br>
//! distance between its focus and apex) and positioned in <br>
//! the plane with a coordinate system (a gp_Ax22d object) where: <br>
//! - the origin of the coordinate system is on the apex of <br>
//! the parabola, and <br>
//! - the "X Axis" of the coordinate system is the axis of <br>
//! symmetry; the parabola is on the positive side of this axis. <br>
//! This coordinate system is the "local coordinate system" <br>
//! of the parabola. Its orientation (direct or indirect sense) <br>
//! gives an implicit orientation to the parabola. <br>
//! In this coordinate system, the equation for the parabola is: <br>
//! Y**2 = (2*P) * X. <br>
//! where P, referred to as the parameter of the parabola, is <br>
//! the distance between the focus and the directrix (P is <br>
//! twice the focal length). <br>
//! See Also <br>
//! GCE2d_MakeParab2d which provides functions for <br>
//! more complex parabola constructions <br>
//! Geom2d_Parabola which provides additional functions <br>
//! for constructing parabolas and works, in particular, with <br>
//! the parametric equations of parabolas <br>
class gp_Parab2d {
public:
void* operator new(size_t,void* anAddress)
{
return anAddress;
}
void* operator new(size_t size)
{
return Standard::Allocate(size);
}
void operator delete(void *anAddress)
{
if (anAddress) Standard::Free((Standard_Address&)anAddress);
}
//! Creates an indefinite parabola. <br>
gp_Parab2d();
//! Creates a parabola with its vertex point, its axis of symmetry <br>
//! ("XAxis") and its focal length. <br>
//! The sense of parametrization is given by Sense. <br>
//! Warnings : It is possible to have Focal = 0. <br>
//! Raises ConstructionError if Focal < 0.0 <br>
gp_Parab2d(const gp_Ax2d& MirrorAxis,const Standard_Real Focal,const Standard_Boolean Sense = Standard_True);
//! Creates a parabola with its vertex point, its axis of symmetry <br>
//! ("XAxis") and its focal length. <br>
//! The sense of parametrization is given by A. <br>
//! Warnings : It is possible to have Focal = 0. <br>
//! Raises ConstructionError if Focal < 0.0 <br>
gp_Parab2d(const gp_Ax22d& A,const Standard_Real Focal);
//! Creates a parabola with the directrix and the focus point. <br>
//! The sense of parametrization is given by Sense. <br>
Standard_EXPORT gp_Parab2d(const gp_Ax2d& D,const gp_Pnt2d& F,const Standard_Boolean Sense = Standard_True);
//! Creates a parabola with the directrix and the focus point. <br>
//! The Sense of parametrization is given by D. <br>
Standard_EXPORT gp_Parab2d(const gp_Ax22d& D,const gp_Pnt2d& F);
//! Changes the focal distance of the parabola <br>
//! Warnings : It is possible to have Focal = 0. <br>
//! Raises ConstructionError if Focal < 0.0 <br>
void SetFocal(const Standard_Real Focal) ;
//! Changes the "Location" point of the parabola. It is the <br>
//! vertex of the parabola. <br>
void SetLocation(const gp_Pnt2d& P) ;
//! Modifies this parabola, by redefining its local coordinate system so that <br>
//! its origin and "X Direction" become those of the axis <br>
//! MA. The "Y Direction" of the local coordinate system is <br>
//! then recomputed. The orientation of the local <br>
//! coordinate system is not modified. <br>
void SetMirrorAxis(const gp_Ax2d& A) ;
//! Changes the local coordinate system of the parabola. <br>
//! The "Location" point of A becomes the vertex of the parabola. <br>
void SetAxis(const gp_Ax22d& A) ;
//! Computes the coefficients of the implicit equation of the parabola. <br>
//! A * (X**2) + B * (Y**2) + 2*C*(X*Y) + 2*D*X + 2*E*Y + F = 0. <br>
Standard_EXPORT void Coefficients(Standard_Real& A,Standard_Real& B,Standard_Real& C,Standard_Real& D,Standard_Real& E,Standard_Real& F) const;
//! Computes the directrix of the parabola. <br>
//! The directrix is: <br>
//! - a line parallel to the "Y Direction" of the local <br>
//! coordinate system of this parabola, and <br>
//! - located on the negative side of the axis of symmetry, <br>
//! at a distance from the apex which is equal to the focal length of this parabola. <br>
//! The directrix is returned as an axis (a gp_Ax2d object), <br>
//! the origin of which is situated on the "X Axis" of this parabola. <br>
gp_Ax2d Directrix() const;
//! Returns the distance between the vertex and the focus <br>
//! of the parabola. <br>
Standard_Real Focal() const;
//! Returns the focus of the parabola. <br>
gp_Pnt2d Focus() const;
//! Returns the vertex of the parabola. <br>
gp_Pnt2d Location() const;
//! Returns the symmetry axis of the parabola. <br>
//! The "Location" point of this axis is the vertex of the parabola. <br>
gp_Ax2d MirrorAxis() const;
//! Returns the local coordinate system of the parabola. <br>
//! The "Location" point of this axis is the vertex of the parabola. <br>
gp_Ax22d Axis() const;
//! Returns the distance between the focus and the <br>
//! directrix of the parabola. <br>
Standard_Real Parameter() const;
void Reverse() ;
//! Reverses the orientation of the local coordinate system <br>
//! of this parabola (the "Y Direction" is reversed). <br>
//! Therefore, the implicit orientation of this parabola is reversed. <br>
//! Note: <br>
//! - Reverse assigns the result to this parabola, while <br>
//! - Reversed creates a new one. <br>
gp_Parab2d Reversed() const;
//! Returns true if the local coordinate system is direct <br>
//! and false in the other case. <br>
Standard_Boolean IsDirect() const;
Standard_EXPORT void Mirror(const gp_Pnt2d& P) ;
//! Performs the symmetrical transformation of a parabola with respect <br>
//! to the point P which is the center of the symmetry <br>
Standard_EXPORT gp_Parab2d Mirrored(const gp_Pnt2d& P) const;
Standard_EXPORT void Mirror(const gp_Ax2d& A) ;
//! Performs the symmetrical transformation of a parabola with respect <br>
//! to an axis placement which is the axis of the symmetry. <br>
Standard_EXPORT gp_Parab2d Mirrored(const gp_Ax2d& A) const;
void Rotate(const gp_Pnt2d& P,const Standard_Real Ang) ;
//! Rotates a parabola. P is the center of the rotation. <br>
//! Ang is the angular value of the rotation in radians. <br>
gp_Parab2d Rotated(const gp_Pnt2d& P,const Standard_Real Ang) const;
void Scale(const gp_Pnt2d& P,const Standard_Real S) ;
//! Scales a parabola. S is the scaling value. <br>
//! If S is negative the direction of the symmetry axis <br>
//! "XAxis" is reversed and the direction of the "YAxis" too. <br>
gp_Parab2d Scaled(const gp_Pnt2d& P,const Standard_Real S) const;
void Transform(const gp_Trsf2d& T) ;
//! Transforms an parabola with the transformation T from class Trsf2d. <br>
gp_Parab2d Transformed(const gp_Trsf2d& T) const;
void Translate(const gp_Vec2d& V) ;
//! Translates a parabola in the direction of the vector V. <br>
//! The magnitude of the translation is the vector's magnitude. <br>
gp_Parab2d Translated(const gp_Vec2d& V) const;
void Translate(const gp_Pnt2d& P1,const gp_Pnt2d& P2) ;
//! Translates a parabola from the point P1 to the point P2. <br>
gp_Parab2d Translated(const gp_Pnt2d& P1,const gp_Pnt2d& P2) const;
const gp_Ax22d& _CSFDB_Getgp_Parab2dpos() const { return pos; }
Standard_Real _CSFDB_Getgp_Parab2dfocalLength() const { return focalLength; }
void _CSFDB_Setgp_Parab2dfocalLength(const Standard_Real p) { focalLength = p; }
protected:
private:
gp_Ax22d pos;
Standard_Real focalLength;
};
#include <gp_Parab2d.lxx>
// other Inline functions and methods (like "C++: function call" methods)
#endif
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