File indexing completed on 2024-05-19 03:51:50

 /*
     SPDX-FileCopyrightText: 2016 Friedrich W. H. Kossebau <kossebau@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef MARBLE_GEOSCENEMERCATORTILEPROJECTION_H
 #define MARBLE_GEOSCENEMERCATORTILEPROJECTION_H
 
 #include "GeoSceneAbstractTileProjection.h"
 
 namespace Marble
 {
 
 /**
  * Converts the x and y indices of tiles to and from geo coordinates.
  * For tiles of maps in Mercator projection.
  *
  * Tiles do have the same width and the same height per zoomlevel.
  * The number of tiles per dimension is twice that of the previous lower zoomlevel.
  * The indexing is done in x dimension eastwards, with the first tiles beginning at -180 degree
  * and an x value of 0 and the last tiles ending at +180 degree,
  * in y dimension southwards with the first tiles beginning at +85.05113 degree and a y value of 0
  * and the last tiles ending at -85.05113 degree.
  *
  * NOTE: The method @c tileIndexes() handles any latitude value >= +85.0 degree as
  * exactly +85.0 degree and any latitude value <= -85.0 as exactly -85.0 degree.
  * So for higher zoomlevels the outermost tiles will be masked by that and not included in any results.
  */
 class GEODATA_EXPORT GeoSceneMercatorTileProjection : public GeoSceneAbstractTileProjection
 {
 public:
     /**
      * @brief Construct a new GeoSceneMercatorTileProjection.
      */
     GeoSceneMercatorTileProjection();
 
     ~GeoSceneMercatorTileProjection() override;
 
 public:
     /**
      * @copydoc
      */
     GeoSceneAbstractTileProjection::Type type() const override;
 
     /**
      * @copydoc
      */
     QRect tileIndexes(const GeoDataLatLonBox &latLonBox, int zoomLevel) const override;
 
     /**
      * @copydoc
      */
     GeoDataLatLonBox geoCoordinates(int zoomLevel, int x, int y) const override;
 
     using GeoSceneAbstractTileProjection::geoCoordinates;
 
 private:
     Q_DISABLE_COPY(GeoSceneMercatorTileProjection)
 };
 
 }
 
 #endif