Marble

TileLoaderHelper.h
1/*
2 SPDX-FileCopyrightText: 2005-2007 Torsten Rahn <tackat@kde.org>
3 SPDX-FileCopyrightText: 2007 Inge Wallin <ingwa@kde.org>
4 SPDX-FileCopyrightText: 2008 Patrick Spendrin <ps_ml@gmx.de>
5 SPDX-FileCopyrightText: 2008 Jens-Michael Hoffmann <jensmh@gmx.de>
6
7 SPDX-License-Identifier: LGPL-2.0-or-later
8*/
9
10#ifndef MARBLE_TILELOADERHELPER_H
11#define MARBLE_TILELOADERHELPER_H
12
13#include "marble_export.h"
14
15namespace Marble
16{
17
18namespace TileLoaderHelper
19{
20 /**
21 * @brief Get the maximum number of tile rows for a given tile level.
22 * @param levelZeroRows the number of rows in level zero
23 * @param level the tile level
24 * @return the maximum number of rows that a map level was tiled into.
25 * If the tile level number is invalid then "-1" gets
26 * returned so this case of wrong input data can get caught
27 * by the code which makes use of it.
28 */
29 MARBLE_EXPORT int levelToRow( int levelZeroRows, int level );
30
31 /**
32 * @brief Get the maximum number of tile columns for a given tile level.
33 * @param levelZeroColumns the number of columns in level zero
34 * @param level the tile level
35 * @return the maximum number of columns that a map level was tiled into.
36 * If the tile level number is invalid then "-1" gets
37 * returned so this case of wrong input data can get caught
38 * by the code which makes use of it.
39 */
40 MARBLE_EXPORT int levelToColumn( int levelZeroColumns, int level );
41
42 /**
43 * @brief Get the tile level for the given maximum number of tile columns.
44 * @param levelZeroRows the number of rows in level zero
45 * @param row the maximum number of rows that a map level was tiled into.
46 * @return the corresponding tile level.
47 * If the number of rows is invalid then "-1" gets
48 * returned so this case of wrong input data can get caught
49 * by the code which makes use of it.
50 */
51 MARBLE_EXPORT int rowToLevel( int levelZeroRows, int row );
52
53 /**
54 * @brief Get the tile level for the given maximum number of tile columns.
55 * @param levelZeroColumns the number of columns in level zero
56 * @param column the maximum number of columns that a map level was tiled into.
57 * @return the corresponding tile level.
58 * If the number of columns is invalid then "-1" gets
59 * returned so this case of wrong input data can get caught
60 * by the code which makes use of it.
61 */
62 MARBLE_EXPORT int columnToLevel( int levelZeroColumns, int column );
63}
64
65}
66
67#endif // MARBLE_TILELOADERHELPER_H
Binds a QML item to a specific geodetic location in screen coordinates.
This file is part of the KDE documentation.
Documentation copyright © 1996-2024 The KDE developers.
Generated on Fri Jun 21 2024 12:00:07 by doxygen 1.10.0 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.