PlatformPosition.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 PlatformPosition_h
#define PlatformPosition_h

#include <vector>
#include <ossim/plugin/ossimPluginConstants.h>
#include <otb/JSDDateTime.h>

class ossimKeywordlist;

namespace ossimplugins
{


   class Ephemeris;
   class HermiteInterpolator;


   class OSSIM_PLUGINS_DLL PlatformPosition
   {
   public:
      PlatformPosition();
      ~PlatformPosition();
      PlatformPosition(const PlatformPosition& rhs);

      PlatformPosition(Ephemeris** data, int nbrData);

      PlatformPosition& operator=(const PlatformPosition& rhs);

      Ephemeris* Interpolate(JSDDateTime date) const;


      bool getPlatformPositionAtTime(JSDDateTime time, std::vector<double>& position, std::vector<double>& speed);

      PlatformPosition* Clone() const
      {
         return new PlatformPosition(*this);
      };

      void setData(Ephemeris** data, int nbrData);
      Ephemeris* getData(int noData) const;

      int getNbrData() const;
      bool saveState(ossimKeywordlist& kwl,
                     const char* prefix=0) const;

      bool loadState(const ossimKeywordlist &kwl, const char *prefix=0);

   protected:

      void InitData(Ephemeris** data, int nbrData);
      void InitAuxiliaryData();

      int _nbrData;

      Ephemeris** _data;

      void Clear();

   private:
      double * _t;
      double ** _p;
      double ** _dp;
      HermiteInterpolator ** _interpolator;
   };
}

#endif