gigi.h

操作系统SunOS 4.1.3版本的源码

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */
/*	@(#)gigi.h 1.1 92/07/30 SMI; from UCB 5.1 5/7/85	*/

/*
 * Displays plot files on a gigi "graphics" terminal.
 */

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

#define ESC	033
#define PI	3.141592659

/*
 * The graphics address range is 0..XMAX, YMAX..0 where (0, YMAX) is the
 * lower left corner.
 */
#define XMAX	767
#define YMAX	479
#define xsc(xi)	((int) ((xi -lowx)*scalex +0.5))
#define ysc(yi)	((int) (YMAX - (yi - lowy)*scaley +0.5))

extern int currentx;
extern int currenty;
extern double lowx;
extern double lowy;
extern double scalex;
extern double scaley;