ossimElevSource.h

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//*****************************************************************************
// FILE: ossimElevSource.h
//
// License:  See top level LICENSE.txt file.
// 
// AUTHOR: Oscar Kramer
//
// DESCRIPTION:
//   Contains declaration of class ossimElevSource. This is the base class for
//   all objects providing height information given horizontal ground position.
//
//*****************************************************************************
// $Id: ossimElevSource.h 23117 2015-01-29 22:33:13Z okramer $

#ifndef ossimElevSource_HEADER
#define ossimElevSource_HEADER

#include <ossim/base/ossimConstants.h>
#include <ossim/base/ossimSource.h>
#include <ossim/base/ossimGrect.h>
#include <ossim/base/ossimFilename.h>
#include <ossim/base/ossimGeoid.h>
#include <ossim/elevation/ossimElevationAccuracyInfo.h>
class ossimEcefRay;
class ossimKeywordlist;

/******************************************************************************
 * CLASS:  ossimElevSource
 *
 *****************************************************************************/
class OSSIM_DLL ossimElevSource : public ossimSource
{
public:

   virtual double getHeightAboveMSL(const ossimGpt&) = 0;
   virtual double getHeightAboveEllipsoid(const ossimGpt&);

   // Forces all concrete subtypes to implement:
   virtual ossimObject* dup() const = 0;

   bool intersectRay(const ossimEcefRay& ray, ossimGpt& gpt, double defaultElevValue = 0.0);
   
   virtual double getMinHeightAboveMSL() const;
   virtual double getMaxHeightAboveMSL() const;

   double getNullHeightValue() const;
   double getSeaLevelValue()   const;

   virtual bool pointHasCoverage(const ossimGpt&) const = 0;

   virtual double getMeanSpacingMeters() const = 0;


   virtual bool getAccuracyInfo(ossimElevationAccuracyInfo& info, const ossimGpt& gpt) const =0;



   //virtual double getAccuracyLE90(const ossimGpt& gpt) const = 0;
   //virtual double getAccuracyCE90(const ossimGpt& gpt) const = 0;


   virtual const ossimGrect& getBoundingGndRect() const;
   
   virtual bool canConnectMyInputTo(ossim_int32 inputIndex,
                                    const ossimConnectableObject* object)const;
   
   virtual void initialize();

//   virtual bool open();
   
//   virtual void close();

   virtual bool getComputeStatisticsFlag() const;

   virtual void setComputeStatisticsFlag(bool flag);

   virtual std::ostream& print(std::ostream& out) const;

protected:
   virtual ~ossimElevSource();
   ossimElevSource();
   ossimElevSource(const ossimElevSource& src);

   double     theMinHeightAboveMSL;
   double     theMaxHeightAboveMSL;
   double     theNullHeightValue;
   double     theSeaLevelValue;
   ossimGrect theGroundRect;

   //> Controls statistics gathering.  Defaulted to true.
   bool       theComputeStatsFlag;


private:

TYPE_DATA
};

#endif