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Map handles overwritten coordinates
1 | /* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */ |
2 | /* vim:set et sw=4 ts=4 cino=t0,(0: */ |
3 | /* |
4 | * converter.h |
5 | * Copyright (C) Marcus Bauer 2008 <marcus.bauer@gmail.com> |
6 | * Copyright (C) John Stowers 2009 <john.stowers@gmail.com> |
7 | * |
8 | * Contributions by |
9 | * Everaldo Canuto 2009 <everaldo.canuto@gmail.com> |
10 | * |
11 | * osm-gps-map.c is free software: you can redistribute it and/or modify it |
12 | * under the terms of the GNU General Public License as published by the |
13 | * Free Software Foundation, either version 3 of the License, or |
14 | * (at your option) any later version. |
15 | * |
16 | * osm-gps-map.c is distributed in the hope that it will be useful, but |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
19 | * See the GNU General Public License for more details. |
20 | * |
21 | * You should have received a copy of the GNU General Public License along |
22 | * with this program. If not, see <http://www.gnu.org/licenses/>. |
23 | */ |
24 | |
25 | float |
26 | deg2rad(float deg); |
27 | |
28 | float |
29 | rad2deg(float rad); |
30 | |
31 | int |
32 | lat2pixel( int zoom, |
33 | float lat); |
34 | |
35 | int |
36 | lon2pixel( int zoom, |
37 | float lon); |
38 | |
39 | float |
40 | pixel2lon( int zoom, |
41 | int pixel_x); |
42 | |
43 | float |
44 | pixel2lat( int zoom, |
45 | int pixel_y); |