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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 _Extrema_ExtPElC_HeaderFile
#define _Extrema_ExtPElC_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Macro.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Integer.hxx>
#include <Standard_Real.hxx>
#include <Extrema_POnCurv.hxx>
class StdFail_NotDone;
class Standard_OutOfRange;
class gp_Pnt;
class gp_Lin;
class gp_Circ;
class gp_Elips;
class gp_Hypr;
class gp_Parab;
class Extrema_POnCurv;
//! It calculates all the distances between a point
//! and an elementary curve.
//! These distances can be minimum or maximum.
class Extrema_ExtPElC
{
public:
DEFINE_STANDARD_ALLOC
Standard_EXPORT Extrema_ExtPElC();
//! Calculates the extremum distance between the
//! point P and the segment [Uinf,Usup] of the line C.
Standard_EXPORT Extrema_ExtPElC(const gp_Pnt& P, const gp_Lin& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup);
Standard_EXPORT void Perform (const gp_Pnt& P, const gp_Lin& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup) ;
//! Calculates the 2 extremum distances between the
//! point P and the segment [Uinf,Usup] of the circle C.
//! Tol is used to determine
//! if P is on the axis of the circle or
//! if an extremum is on an endpoint of the segment.
//! If P is on the axis of the circle,
//! there are infinite solution then IsDone(me)=False.
//! The conditions on the Uinf and Usup are:
//! 0. <= Uinf <= 2.*PI and Usup > Uinf.
//! If Usup > Uinf + 2.*PI, then only the solutions in
//! the range [Uinf,Uinf+2.*PI[ are computed.
Standard_EXPORT Extrema_ExtPElC(const gp_Pnt& P, const gp_Circ& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup);
Standard_EXPORT void Perform (const gp_Pnt& P, const gp_Circ& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup) ;
//! Calculates the 4 extremum distances between the
//! point P and the segment [Uinf,Usup] of the elipse C.
//! Tol is used to determine
//! if the point is on the axis of the elipse and
//! if the major radius is equal to the minor radius or
//! if an extremum is on an endpoint of the segment.
//! If P is on the axis of the elipse,
//! there are infinite solution then IsDone(me)=False.
//! The conditions on the Uinf and Usup are:
//! 0. <= Uinf <= 2.*PI and Usup > Uinf.
//! If Usup > Uinf + 2.*PI, then only the solutions in
//! the range [Uinf,Uinf+2.*PI[ are computed.
Standard_EXPORT Extrema_ExtPElC(const gp_Pnt& P, const gp_Elips& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup);
Standard_EXPORT void Perform (const gp_Pnt& P, const gp_Elips& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup) ;
//! Calculates the extremum distances between the
//! point P and the segment [Uinf,Usup] of the hyperbola
//! C.
//! Tol is used to determine if two solutions u and v
//! are identical; the condition is:
//! dist(C(u),C(v)) < Tol.
Standard_EXPORT Extrema_ExtPElC(const gp_Pnt& P, const gp_Hypr& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup);
Standard_EXPORT void Perform (const gp_Pnt& P, const gp_Hypr& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup) ;
//! Calculates the 4 extremum distances between the
//! point P and the segment [Uinf,Usup] of the parabola
//! C.
//! Tol is used to determine if two solutions u and v
//! are identical; the condition is:
//! dist(C(u),C(v)) < Tol.
Standard_EXPORT Extrema_ExtPElC(const gp_Pnt& P, const gp_Parab& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup);
Standard_EXPORT void Perform (const gp_Pnt& P, const gp_Parab& C, const Standard_Real Tol, const Standard_Real Uinf, const Standard_Real Usup) ;
//! True if the distances are found.
Standard_EXPORT Standard_Boolean IsDone() const;
//! Returns the number of extremum distances.
Standard_EXPORT Standard_Integer NbExt() const;
//! Returns the value of the Nth extremum square distance.
Standard_EXPORT Standard_Real SquareDistance (const Standard_Integer N) const;
//! Returns True if the Nth extremum distance is a
//! minimum.
Standard_EXPORT Standard_Boolean IsMin (const Standard_Integer N) const;
//! Returns the point of the Nth extremum distance.
Standard_EXPORT const Extrema_POnCurv& Point (const Standard_Integer N) const;
protected:
private:
Standard_Boolean myDone;
Standard_Integer myNbExt;
Standard_Real mySqDist[4];
Standard_Boolean myIsMin[4];
Extrema_POnCurv myPoint[4];
};
#endif // _Extrema_ExtPElC_HeaderFile
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