// Created on: 1995-10-18
// Created by: Andre LIEUTIER
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _Plate_Plate_HeaderFile
#define _Plate_Plate_HeaderFile

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

#include <Standard_Integer.hxx>
#include <Standard_Address.hxx>
#include <Standard_Boolean.hxx>
#include <Plate_SequenceOfPinpointConstraint.hxx>
#include <Plate_SequenceOfLinearXYZConstraint.hxx>
#include <Plate_SequenceOfLinearScalarConstraint.hxx>
#include <Standard_Real.hxx>
#include <TColgp_HArray2OfXYZ.hxx>
#include <TColgp_SequenceOfXY.hxx>
class Plate_PinpointConstraint;
class Plate_LinearXYZConstraint;
class Plate_LinearScalarConstraint;
class Plate_GlobalTranslationConstraint;
class Plate_LineConstraint;
class Plate_PlaneConstraint;
class Plate_SampledCurveConstraint;
class Plate_GtoCConstraint;
class Plate_FreeGtoCConstraint;
class gp_XYZ;
class gp_XY;
class math_Matrix;


//! This class implement a variationnal spline algorithm able
//! to define a two variable function satisfying some constraints
//! and minimizing an energy like criterion.
class Plate_Plate 
{
public:

  DEFINE_STANDARD_ALLOC

  
  Standard_EXPORT Plate_Plate();
  
  Standard_EXPORT Plate_Plate(const Plate_Plate& Ref);
  
  Standard_EXPORT Plate_Plate& Copy (const Plate_Plate& Ref);
Plate_Plate& operator= (const Plate_Plate& Ref)
{
  return Copy(Ref);
}
  
  Standard_EXPORT void Load (const Plate_PinpointConstraint& PConst);
  
  Standard_EXPORT void Load (const Plate_LinearXYZConstraint& LXYZConst);
  
  Standard_EXPORT void Load (const Plate_LinearScalarConstraint& LScalarConst);
  
  Standard_EXPORT void Load (const Plate_GlobalTranslationConstraint& GTConst);
  
  Standard_EXPORT void Load (const Plate_LineConstraint& LConst);
  
  Standard_EXPORT void Load (const Plate_PlaneConstraint& PConst);
  
  Standard_EXPORT void Load (const Plate_SampledCurveConstraint& SCConst);
  
  Standard_EXPORT void Load (const Plate_GtoCConstraint& GtoCConst);
  
  Standard_EXPORT void Load (const Plate_FreeGtoCConstraint& FGtoCConst);
  
  Standard_EXPORT void SolveTI (const Standard_Integer ord = 4, const Standard_Real anisotropie = 1.0);
  
  //! returns True if all has been correctly done.
  Standard_EXPORT Standard_Boolean IsDone() const;
  
  Standard_EXPORT void destroy();
~Plate_Plate()
{
  destroy();
}
  
  //! reset the Plate in the initial state
  //! ( same as after Create())
  Standard_EXPORT void Init();
  
  Standard_EXPORT gp_XYZ Evaluate (const gp_XY& point2d) const;
  
  Standard_EXPORT gp_XYZ EvaluateDerivative (const gp_XY& point2d, const Standard_Integer iu, const Standard_Integer iv) const;
  
  Standard_EXPORT void CoefPol (Handle(TColgp_HArray2OfXYZ)& Coefs) const;
  
  Standard_EXPORT void SetPolynomialPartOnly (const Standard_Boolean PPOnly = Standard_True);
  
  Standard_EXPORT Standard_Integer Continuity() const;
  
  Standard_EXPORT void UVBox (Standard_Real& UMin, Standard_Real& UMax, Standard_Real& VMin, Standard_Real& VMax) const;
  
  Standard_EXPORT void UVConstraints (TColgp_SequenceOfXY& Seq) const;




protected:





private:

  
  Standard_EXPORT Standard_Real SolEm (const gp_XY& point2d, const Standard_Integer iu, const Standard_Integer iv) const;
  
    Standard_Real Polm (const gp_XY& point2d, const Standard_Integer iu, const Standard_Integer iv, const Standard_Integer idu, const Standard_Integer idv) const;
  
    Standard_Integer& Deru (const Standard_Integer index) const;
  
    Standard_Integer& Derv (const Standard_Integer index) const;
  
    gp_XYZ& Solution (const Standard_Integer index) const;
  
    gp_XY& Points (const Standard_Integer index) const;
  
  Standard_EXPORT void SolveTI1 (const Standard_Integer IterationNumber);
  
  Standard_EXPORT void SolveTI2 (const Standard_Integer IterationNumber);
  
  Standard_EXPORT void SolveTI3 (const Standard_Integer IterationNumber);
  
  Standard_EXPORT void fillXYZmatrix (math_Matrix& mat, const Standard_Integer i0, const Standard_Integer j0, const Standard_Integer ncc1, const Standard_Integer ncc2) const;


  Standard_Integer order;
  Standard_Integer n_el;
  Standard_Integer n_dim;
  Standard_Address solution;
  Standard_Address points;
  Standard_Address deru;
  Standard_Address derv;
  Standard_Boolean OK;
  Plate_SequenceOfPinpointConstraint myConstraints;
  Plate_SequenceOfLinearXYZConstraint myLXYZConstraints;
  Plate_SequenceOfLinearScalarConstraint myLScalarConstraints;
  Standard_Real ddu[10];
  Standard_Real ddv[10];
  Standard_Integer maxConstraintOrder;
  Standard_Boolean PolynomialPartOnly;
  Standard_Real Uold;
  Standard_Real Vold;
  Standard_Real U2;
  Standard_Real R;
  Standard_Real L;


};


#include <Plate_Plate.lxx>





#endif // _Plate_Plate_HeaderFile