ellipsoid.h

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#ifndef UPDRAFT_SRC_LIBRARIES_UTIL_ELLIPSOID_H_
#define UPDRAFT_SRC_LIBRARIES_UTIL_ELLIPSOID_H_

#include "util.h"

namespace osg {
  class EllipsoidModel;
}

namespace GeographicLib {
  class Geodesic;
}

namespace Updraft {
namespace Util {

enum EllipsoidType {
  ELLIPSOID_WGS84,
  ELLIPSOID_FAI_SPHERE
};

class Location;

class UTIL_EXPORT Ellipsoid {
 public:
  Ellipsoid(const QString &name_, EllipsoidType type_);

  virtual ~Ellipsoid();

  QString getName() const;

  EllipsoidType getType() const;

  static QString getEllipsoidTypeName(EllipsoidType type);

  EllipsoidType getEllipsoidType(const QString& typeName);

  qreal getEquatRadius() const;

  qreal getPolarRadius() const;

  qreal getFlattening() const;

  const osg::EllipsoidModel* getOsgEllipsoidModel() const;

  qreal distance(const Location &l1, const Location &l2) const;

  qreal distanceAzimuth(const Location &l1, const Location &l2,
    qreal *azimuth) const;

  static qreal countFlattening(qreal rE, qreal rP);

  static qreal countPolarRadius(qreal r, qreal f);

 protected:
  EllipsoidType type;
  QString name;
  qreal equatRadius;
  qreal flattening;

  osg::EllipsoidModel *osgEllipsoidModel;

  GeographicLib::Geodesic *geodesic;
};

}  // End namespace Util
}  // End namespace Updraft

#endif  // UPDRAFT_SRC_LIBRARIES_UTIL_ELLIPSOID_H_