lvp16.h

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C头文件 代码 · 共 48 行

/*	@(#)lvp16.h	4.1	ULTRIX	7/2/90	*/
/*
 *		Copyright (C) 1986 by
 *		DIGITAL EQUIPMENT CORPORATION, Maynard, MA.
 *
 *  This software is furnished under a license and may be used and copied
 * only in accordance with the terms of such license and with the inclusion
 * of the above copyright notice.
 *
 * Creation date: February 1, 1986
 * Modifications: Added lvp16 dependent code.
 */

/*
 * 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 lvp16 plotter.
 */

#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	7721
#define YMAX	7721
#define xsc(xi)	((int) ((xi -lowx)*scalex +0.5))
#define ysc(yi)	((int) ((yi -lowy)*scaley +0.5))

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