/*
 * Copyright (C) 1986, 1987, 1990   Thomas Williams, Colin Kelley
 *
 * Permission to use, copy, and distribute this software and its
 * documentation for any purpose with or without fee is hereby granted, 
 * provided that the above copyright notice appear in all copies and 
 * that both that copyright notice and this permission notice appear 
 * in supporting documentation.
 *
 * Permission to modify the software is granted, but not the right to
 * distribute the modified code.  Modifications are to be distributed 
 * as patches to released version.
 *  
 * This software  is provided "as is" without express or implied warranty.
 * 
 *
 * AUTHORS
 * 
 *   Original Software:
 *     Thomas Williams,  Colin Kelley.
 * 
 *   Gnuplot 2.0 additions:
 *       Russell Lang, Dave Kotz, John Campbell.
 * 
 * send your comments or suggestions to (pixar!info-gnuplot@sun.com).
 * 
 */
#define inrange(z, min, max) ( (min)<(max) ? (z) >= (min) && (z) <= (max) : (z) >= (max) && (z) <= (min) )

/* Functions to map from user to terminal coordinates */
#define map_x(x) ((int)(xleft+((x)-xmin)*xscale+0.5))
#define map_y(y) ((int)(ybot +((y)-ymin)*yscale+0.5))