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 _vect_t {
30 typedef struct _point_t {
35 /* Return scalar product */
37 vect_pscal(vect_t *v, vect_t *w);
39 /* Return Z of vectorial product */
41 vect_pvect(vect_t *v, vect_t *w);
43 /* Return scalar product */
45 vect_pscal_sign(vect_t *v, vect_t *w);
47 /* Return Z of vectorial product */
49 vect_pvect_sign(vect_t *v, vect_t *w);
51 /* norm of a vector */
52 float xy_norm(float x1, float y1, float x2, float y2);
53 float pt_norm(point_t *p1, point_t *p2);
54 float vect_norm(vect_t *v);
55 void vect_rot_trigo(vect_t *v);
56 void vect_rot_retro(vect_t *v);
57 float vect_get_angle(vect_t *v, vect_t *w);
59 void vect_resize(vect_t *v, float l);
61 #endif /* _VECT_BASE_H_ */