modules/base/math/geometry/vect_base.h

   1 typedef struct _vect_t {
   2   int32_t x;
   3   int32_t y;
   4 }vect_t;
   5
   6 typedef struct _point_t {
   7   int32_t x;
   8   int32_t y;
   9 }point_t;
  10
  11
  12
  13 /* Return scalar product */
  14 int32_t
  15 vect_pscal(vect_t *v, vect_t *w);
  16
  17 /* Return Z of vectorial product */
  18 int32_t
  19 vect_pvect(vect_t *v, vect_t *w);
  20
  21 /* Return scalar product */
  22 int8_t
  23 vect_pscal_sign(vect_t *v, vect_t *w);
  24
  25 /* Return Z of vectorial product */
  26 int8_t
  27 vect_pvect_sign(vect_t *v, vect_t *w);
  28
  29 /* norm of a vector */
  30 float vect_norm(vect_t *v);
  31 void vect_rot_trigo(vect_t *v);
  32 void vect_rot_retro(vect_t *v);
  33 float vect_get_angle(vect_t *v, vect_t *w);
  34