--- ray/src/common/plocate.h	1989/02/02 10:33:00	1.1
+++ ray/src/common/plocate.h	2003/06/06 16:38:47	2.5
@@ -1,15 +1,19 @@
-/* Copyright (c) 1986 Regents of the University of California */
-
-/* SCCSid "$SunId$ LBL" */
-
+/* RCSid $Id: plocate.h,v 2.5 2003/06/06 16:38:47 schorsch Exp $ */
 /*
  *  plocate.h - header for 3D vector location.
  *
- *     8/28/85
+ *  Include after fvect.h
  */
+#ifndef _RAD_PLOCATE_H_
+#define _RAD_PLOCATE_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
 
-#define  EPSILON	1e-6		/* acceptable location error */
+#include "copyright.h"
 
+#define  EPSILON	FTINY		/* acceptable location error */
+
 #define  XPOS		03		/* x position mask */
 #define  YPOS		014		/* y position mask */
 #define  ZPOS		060		/* z position mask */
@@ -18,3 +22,14 @@
 
 #define  BELOW		025		/* below bits */
 #define  ABOVE		052		/* above bits */
+
+
+extern int	clip(FLOAT *ep1, FLOAT *ep2, FVECT min, FVECT max);
+extern int	plocate(FVECT p, FVECT min, FVECT max);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _RAD_PLOCATE_H_ */
+