2 * Copyright Droids Corporation (2009)
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 * Revision : $Id: f16.h,v 1.6.4.3 2008-05-10 15:06:26 zer0 Exp $
25 typedef struct _circle {
31 /* return true if a point is in the disc */
32 uint8_t pt_is_inside_circle(const point_t *p, circle_t *c);
37 * 1 one intersection point
38 * 2 two intersection points
40 * p1, p2 arguments are the crossing points coordinates. Both p1 and
41 * p2 are dummy for 0 result. When result is 1, p1 and p2 are set to
44 uint8_t circle_intersect(const circle_t *c1, const circle_t *c2,
45 point_t *p1, point_t *p2);
47 #endif /* _CIRCLES_H_ */