HermiteInterpolator.h

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//----------------------------------------------------------------------------
//
// "Copyright Centre National d'Etudes Spatiales"
//
// License:  LGPL
//
// See LICENSE.txt file in the top level directory for more details.
//
//----------------------------------------------------------------------------
// $Id$

#ifndef HermiteInterpolator_h
#define HermiteInterpolator_h

#include <ossim/plugin/ossimPluginConstants.h>

namespace ossimplugins
{



class OSSIM_PLUGINS_DLL HermiteInterpolator
{
public:
   HermiteInterpolator();

   HermiteInterpolator(int nbrPoints, double* x, double* y, double* dy);

   ~HermiteInterpolator();

   HermiteInterpolator(const HermiteInterpolator& rhs);

   HermiteInterpolator& operator =(const HermiteInterpolator& rhs);

   int Interpolate(double x, double& y, double& dy) const;

   int Interpolate(double x, double& y) const;

protected:

   void Clear();
   int theNPointsAvailable;
   double* theXValues;
   double* theYValues;
   double* thedYValues;

   mutable double* prodC;
   mutable double* sumC;
   mutable bool isComputed;

   int Precompute() const; // const in a semantic way


private:
};
}

#endif