--- ray/src/hd/holo.c	1997/11/11 17:03:28	3.6
+++ ray/src/hd/holo.c	1997/11/20 10:52:57	3.8
@@ -253,6 +253,24 @@ FVECT	wp;
 }
 
 
+hdworld(wp, hp, gp)		/* compute world coordinates */
+register FVECT	wp;
+register HOLO	*hp;
+FVECT	gp;
+{
+	register double	d;
+
+	d = gp[0]/hp->grid[0];
+	VSUM(wp, hp->orig, hp->xv[0], d);
+
+	d = gp[1]/hp->grid[1];
+	VSUM(wp, wp, hp->xv[1], d);
+
+	d = gp[2]/hp->grid[2];
+	VSUM(wp, wp, hp->xv[2], d);
+}
+
+
 double
 hdray(ro, rd, hp, gc, r)	/* compute ray within a beam */
 FVECT	ro, rd;		/* returned */