Index: trunk/Ohana/src/opihi/cmd.astro/drizzle.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.astro/drizzle.c	(revision 8427)
+++ trunk/Ohana/src/opihi/cmd.astro/drizzle.c	(revision 19823)
@@ -221,6 +221,5 @@
   *phi   = DEG_RAD*atan2(y,x) + rot_phi;
   
-  while (*phi <   0.0) *phi += 360.0;
-  while (*phi > 360.0) *phi -= 360.0;
+  *phi = ohana_normalize_angle(*phi);
   return (TRUE);
 }