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1 | /* | |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2011, Guilhem Bonnefille <guilhem.bonnefille@gmail.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #ifndef __BOUNDING_BOX_H | |
23 | #define __BOUNDING_BOX_H | |
24 | ||
25 | typedef struct { | |
26 | gdouble south, north; | |
27 | gdouble east, west; | |
28 | } LatLonBBox; | |
29 | ||
30 | /** | |
31 | * +--------+ | |
32 | * |a | | |
33 | * | +--+----+ | |
34 | * | | | | | |
35 | * +-----+--+ | | |
36 | * | b| | |
37 | * +-------+ | |
38 | */ | |
39 | #define BBOX_INTERSECT(a,b) ((a).south < (b).north && (a).north > (b).south && (a).east > (b).west && (a).west < (b).east) | |
40 | ||
41 | #endif | |
42 |