// 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 _GeomFill_SectionLaw_HeaderFile
#define _GeomFill_SectionLaw_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineHandle.hxx>
#include <Handle_GeomFill_SectionLaw.hxx>

#include <MMgt_TShared.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Real.hxx>
#include <Handle_Geom_BSplineSurface.hxx>
#include <Standard_Integer.hxx>
#include <GeomAbs_Shape.hxx>
#include <Handle_Geom_Curve.hxx>
class Standard_NotImplemented;
class Standard_DomainError;
class Standard_OutOfRange;
class TColgp_Array1OfPnt;
class TColStd_Array1OfReal;
class TColgp_Array1OfVec;
class Geom_BSplineSurface;
class TColStd_Array1OfInteger;
class gp_Pnt;
class Geom_Curve;


//! To define section law in  sweeping
class GeomFill_SectionLaw : public MMgt_TShared
{

public:

  
  //! compute the section for v = param
  Standard_EXPORT virtual   Standard_Boolean D0 (const Standard_Real Param, TColgp_Array1OfPnt& Poles, TColStd_Array1OfReal& Weigths)  = 0;
  
  //! compute the first  derivative in v direction  of the
  //! section for v =  param
  //! Warning : It used only for C1 or C2 aproximation
  Standard_EXPORT virtual   Standard_Boolean D1 (const Standard_Real Param, TColgp_Array1OfPnt& Poles, TColgp_Array1OfVec& DPoles, TColStd_Array1OfReal& Weigths, TColStd_Array1OfReal& DWeigths) ;
  
  //! compute the second derivative  in v direction of the
  //! section  for v = param
  //! Warning : It used only for C2 aproximation
  Standard_EXPORT virtual   Standard_Boolean D2 (const Standard_Real Param, TColgp_Array1OfPnt& Poles, TColgp_Array1OfVec& DPoles, TColgp_Array1OfVec& D2Poles, TColStd_Array1OfReal& Weigths, TColStd_Array1OfReal& DWeigths, TColStd_Array1OfReal& D2Weigths) ;
  
  //! give if possible an bspline Surface, like iso-v are the
  //! section.   If it is  not possible this  methode have to
  //! get an Null Surface. It is the default  implementation.
  Standard_EXPORT virtual   Handle(Geom_BSplineSurface) BSplineSurface()  const;
  
  //! get the format of an  section
  Standard_EXPORT virtual   void SectionShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree)  const = 0;
  
  //! get the Knots of the section
  Standard_EXPORT virtual   void Knots (TColStd_Array1OfReal& TKnots)  const = 0;
  
  //! get the Multplicities of the section
  Standard_EXPORT virtual   void Mults (TColStd_Array1OfInteger& TMults)  const = 0;
  
  //! Returns if the sections are rationnal or not
  Standard_EXPORT virtual   Standard_Boolean IsRational()  const = 0;
  
  //! Returns if the sections are periodic or not
  Standard_EXPORT virtual   Standard_Boolean IsUPeriodic()  const = 0;
  
  //! Returns if law is periodic or not
  Standard_EXPORT virtual   Standard_Boolean IsVPeriodic()  const = 0;
  
  //! Returns  the number  of  intervals for  continuity
  //! <S>.
  //! May be one if Continuity(me) >= <S>
  Standard_EXPORT virtual   Standard_Integer NbIntervals (const GeomAbs_Shape S)  const = 0;
  
  //! Stores in <T> the  parameters bounding the intervals
  //! of continuity <S>.
  //!
  //! The array must provide  enough room to  accomodate
  //! for the parameters. i.e. T.Length() > NbIntervals()
  Standard_EXPORT virtual   void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S)  const = 0;
  
  //! Sets the bounds of the parametric interval on
  //! the function
  //! This determines the derivatives in these values if the
  //! function is not Cn.
  Standard_EXPORT virtual   void SetInterval (const Standard_Real First, const Standard_Real Last)  = 0;
  
  //! Gets the bounds of the parametric interval on
  //! the function
  Standard_EXPORT virtual   void GetInterval (Standard_Real& First, Standard_Real& Last)  const = 0;
  
  //! Gets the bounds of the function parametric domain.
  //! Warning: This domain it is  not modified by the
  //! SetValue method
  Standard_EXPORT virtual   void GetDomain (Standard_Real& First, Standard_Real& Last)  const = 0;
  
  //! Returns the tolerances associated at each poles to
  //! reach  in approximation, to satisfy: BoundTol error
  //! at the   Boundary  AngleTol tangent error  at  the
  //! Boundary  (in radian)  SurfTol   error inside the
  //! surface.
  Standard_EXPORT virtual   void GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, TColStd_Array1OfReal& Tol3d)  const = 0;
  
  //! Is  usefull, if (me)  have to run  numerical
  //! algorithm  to perform D0,  D1 or D2
  //! The default implementation make nothing.
  Standard_EXPORT virtual   void SetTolerance (const Standard_Real Tol3d, const Standard_Real Tol2d) ;
  
  //! Get the barycentre of Surface.
  //! An   very  poor estimation is sufficent.
  //! This information is usefull to perform well
  //! conditioned rational approximation.
  //! Warning: Used only if <me> IsRational
  Standard_EXPORT virtual   gp_Pnt BarycentreOfSurf()  const;
  
  //! Returns the   length of the greater section. This
  //! information is usefull to G1's control.
  //! Warning: With an little value, approximation can be slower.
  Standard_EXPORT virtual   Standard_Real MaximalSection()  const = 0;
  
  //! Compute the minimal value of weight for each poles
  //! in all  sections.
  //! This information is  usefull to control error
  //! in rational approximation.
  //! Warning: Used only if <me> IsRational
  Standard_EXPORT virtual   void GetMinimalWeight (TColStd_Array1OfReal& Weigths)  const;
  
  //! Say if all sections are equals
  Standard_EXPORT virtual   Standard_Boolean IsConstant (Standard_Real& Error)  const;
  
  //! Return a  copy of the  constant Section,  if me
  //! IsConstant
  Standard_EXPORT virtual   Handle(Geom_Curve) ConstantSection()  const;
  
  //! Returns True if all section  are circle, with same
  //! plane,same center and  linear  radius  evolution
  //! Return False by Default.
  Standard_EXPORT virtual   Standard_Boolean IsConicalLaw (Standard_Real& Error)  const;
  
  //! Return the circle section  at parameter <Param>, if
  //! <me> a  IsConicalLaw
  Standard_EXPORT virtual   Handle(Geom_Curve) CirclSection (const Standard_Real Param)  const;




  DEFINE_STANDARD_RTTI(GeomFill_SectionLaw)

protected:




private: 




};







#endif // _GeomFill_SectionLaw_HeaderFile
