/* extent.h  (Steve Hill)  1.1  3/9/90$ */

/* extent.h
 *
 * Header file for extent.c
 */

bool_t		QuadricInside PROTO((point_t *, quadric_t *)),
		QuadricOutside PROTO((point_t *, quadric_t *)),
		SolidInside PROTO((point_t *, solid_t *)),
		SolidOutside PROTO((point_t *, solid_t *));

hit_list_t	*HitListFilter PROTO((hit_list_t *, solid_t *, bool_t (*)())),
		*FilterInside PROTO((hit_list_t *, solid_t *)),
		*FilterOutside PROTO((hit_list_t *, solid_t *));