Marble

GeoSceneEquirectTileProjection.h
1/*
2 SPDX-FileCopyrightText: 2016 Friedrich W. H. Kossebau <kossebau@kde.org>
3
4 SPDX-License-Identifier: LGPL-2.0-or-later
5*/
6
7#ifndef MARBLE_GEOSCENEEQUIRECTTILEPROJECTION_H
8#define MARBLE_GEOSCENEEQUIRECTTILEPROJECTION_H
9
10#include "GeoSceneAbstractTileProjection.h"
11
12namespace Marble
13{
14
15/**
16 * Converts the x and y indices of tiles to and from geo coordinates.
17 * For tiles of maps in Equirectangular projection.
18 *
19 * Tiles do have the same width and the same height per zoomlevel.
20 * The number of tiles per dimension is twice that of the previous lower zoomlevel.
21 * The indexing is done in x dimension eastwards, with the first tiles beginning at -180 degree
22 * and an x value of 0 and the last tiles ending at +180 degree,
23 * in y dimension southwards with the first tiles beginning at +90 degree and a y value of 0
24 * and the last tiles ending at -90 degree.
25 */
27{
28public:
29 /**
30 * @brief Construct a new GeoSceneEquirectTileProjection.
31 */
33
35
36public:
37 /**
38 * @copydoc
39 */
40 GeoSceneAbstractTileProjection::Type type() const override;
41
42 /**
43 * @copydoc
44 */
45 QRect tileIndexes(const GeoDataLatLonBox &latLonBox, int zoomLevel) const override;
46
47 /**
48 * @copydoc
49 */
50 GeoDataLatLonBox geoCoordinates(int zoomLevel, int x, int y) const override;
51
52 using GeoSceneAbstractTileProjection::geoCoordinates;
53
54private:
55 Q_DISABLE_COPY(GeoSceneEquirectTileProjection)
56};
57
58}
59
60#endif
A class that defines a 2D bounding box for geographic data.
A base class for projections between tile indizes and geo coordinates in Marble.
Converts the x and y indices of tiles to and from geo coordinates.
Binds a QML item to a specific geodetic location in screen coordinates.
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