pgRouting  2.2
pgRouting extends the PostGIS / PostgreSQL geospatial database to provide geospatial routing functionality.
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alpha.h
1 /*PGR-GNU*****************************************************************
2 FILE: alpha.h
3 
4 Copyright (c) 2006 Anton A. Patrushev, Orkney, Inc.
5 Mail: project@pgrouting.org
6 
7 ------
8 
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
13 
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18 
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 
23 ********************************************************************PGR-GNU*/
24 
25 #define _ALPHA_H
26 
27 #ifdef __MINGW64__
28 #define ELOG_H
29 #endif
30 #include "postgres.h"
31 #include "../../common/src/pgr_types.h"
32 
33 typedef struct vertex
34 {
35  float8 x;
36  float8 y;
37 } vertex_t;
38 
39 
40 #ifdef __cplusplus
41 extern "C"
42 {
43 #endif
44 
45  int alpha_shape(vertex_t *vertices, size_t count, double alpha,
46  vertex_t **res, size_t *res_count, char **err_msg);
47 
48 #ifdef __cplusplus
49 }
50 #endif
51 
52 
Definition: alpha.h:33