usr/src/lib/libplot/bitgraph/bg.h

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)bg.h        5.1 (Berkeley) 4/30/85
 */

/*
 * Displays plot files on a bbn bitgraph terminal.
 */

#include <stdio.h>
#include <math.h>

#define ESC     033
#define PI      3.141592659

/* The graphics address range is 0..XMAX, 0..YMAX. */
#define XMAX    768
#define YMAX    1024
#define scaleX(xi)      ((int) ((xi - lowx)*scale +0.5))
#define scaleY(yi)      ((int) ((yi - lowy)*scale +0.5))

extern int currentx;
extern int currenty;
extern double lowx;
extern double lowy;
extern double scale;