bg.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */
/*
* Copyright (c) 1983, 1984 1985, 1986, 1987, 1988, Sun Microsystems, Inc.
* All Rights Reserved.
*/
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
/*
* 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;