Ellipsoid.h

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#ifndef SZA_UTIL_ELLIPSOID_H
#define SZA_UTIL_ELLIPSOID_H

#include "carma/szautil/Angle.h"
#include "carma/szautil/Length.h"

namespace sza {
  namespace util {
    
    class Ellipsoid {
    public:
      
      Ellipsoid();
      Ellipsoid(Length majorAxis, Length minorAxis);
      Ellipsoid(Length majorAxis, double flattening);
      
      virtual ~Ellipsoid();
      
      void setMajorAxisAndFlattening(Length majorAxis, double flattening);
      void setMajorMinorAxis(Length majorAxis, Length minorAxis);

      virtual double flattening();
      Length majorAxis();
      Length minorAxis();

      virtual double firstEccentricity();
      virtual double firstEccentricitySquared();
      virtual double secondEccentricity();
      virtual double secondEccentricitySquared();

      Length radius(Angle latitude);
      
    private:

      bool initialized_;

      // The semi-major and semi-minor axes of this ellipsoid

      Length a_;
      Length b_;

      void checkInitialization();

    }; // End class Ellipsoid
    
  } // End namespace util
} // End namespace sza



#endif // End #ifndef SZA_UTIL_ELLIPSOID_H