5 <a HREF="index.html"> <IMG SRC="rsl.gif"> </a>
9 <h1>RSL_get_first_ray_of_...</h1>
14 <b>#include "rsl.h"</b> <br>
15 <a href=RSL_ray_struct.html><b>Ray</b></a> <b>*RSL_get_first_ray_of_sweep(<a href=RSL_sweep_struct.html>Sweep</a> *s);</b><br>
16 <a href=RSL_ray_struct.html><b>Ray</b></a> <b>*RSL_get_first_ray_of_volume(<a href=RSL_volume_struct.html>Volume</a> *v);</b>
20 <b>RSL_get_first_ray_of_sweep</b> returns a pointer to the first ray pointer in the <b>Sweep</b> structure <b>*s</b>, if one exist. Otherwise NULL is returned. Similiarly, for <b>RSL_get_first_ray_of_volume</b>; it finds the first sweep and returns the first ray of that sweep.
24 Upon successful completion, a pointer to the Ray structure is returned. Otherwise, a NULL pointer is returned.
28 <a href=RSL_get_first_sweep_of_volume.html>RSL_get_first_sweep_of_volume</a>
31 <p>Author: <a href=john.merritt.html>John H. Merritt</a>