--- ray/src/util/pictool.c	2017/05/18 02:25:27	2.4
+++ ray/src/util/pictool.c	2020/05/14 20:58:03	2.7
@@ -1,10 +1,10 @@
 #ifndef lint
-static const char RCSid[] = "$Id: pictool.c,v 2.4 2017/05/18 02:25:27 greg Exp $";
+static const char RCSid[] = "$Id: pictool.c,v 2.7 2020/05/14 20:58:03 greg Exp $";
 #endif
 #include "pictool.h"
 #include "g3sphere.h"
 #include <math.h>
-#include <string.h>
+#include "rtio.h"
 
 #define        index                  strchr
 
@@ -689,8 +689,7 @@ int		pict_locate(pict* p,FVECT pt,int* x,int* y)
 		return 0;
 	}
 
-	viewloc(pp,&(p->view),pt);
-	if (pp[2] < 0)
+	if (viewloc(pp,&(p->view),pt) != VL_GOOD)
 		return 0;
 	loc2pix(res,&(p->resol),pp[0],pp[1]);
 	*x = res[0];