qgsellipsoidutils.h

Go to the documentation of this file.

/***************************************************************************
  qgsellipsoidutils.h
 --------------------
  Date                 : April 2017
  Copyright            : (C) 2017 by Nyall Dawson
  email                : nyall dot dawson at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSELLIPSOIDUTILS_H
#define QGSELLIPSOIDUTILS_H
 
#include "qgis_core.h"
#include "qgis_sip.h"
#include "qgscoordinatereferencesystem.h"
 
#include <QStringList>
 
class QgsCelestialBody;

class CORE_EXPORT QgsEllipsoidUtils
{
  public:

    struct EllipsoidParameters
    {
      bool valid{ true };

      double semiMajor{ -1.0 };
      double semiMinor{ -1.0 };

      bool useCustomParameters{ false };

      double inverseFlattening{ -1.0 };

      QgsCoordinateReferenceSystem crs;
 
    };

    struct EllipsoidDefinition
    {
      QString acronym;
      QString description;
      QgsEllipsoidUtils::EllipsoidParameters parameters;

      QString celestialBodyName;
    };

    static EllipsoidParameters ellipsoidParameters( const QString &ellipsoid );

    static QList< QgsEllipsoidUtils::EllipsoidDefinition > definitions();

    static QStringList acronyms();

    static QList< QgsCelestialBody > celestialBodies();
 
#ifndef SIP_RUN

    static void invalidateCache( bool disableCache = false );
#endif
};
 
#endif // QGSELLIPSOIDUTILS_H