space.c

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C语言 代码 · 共 43 行

#ifndef lint
static char SccsId[] = " @(#)space.c	4.1	(ULTRIX)	7/2/90";
#endif not(lint)

/*
 * Modification History
 *
 * 	April-11-1989, Pradeep Chetal
 *	Added changes from 4.3Tahoe BSD for lots of new drivers
 */

/*
 * Copyright (c) 1985 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char sccsid[] = "@(#)space.c	5.2 (Berkeley) 9/21/85";
#endif not lint

extern float botx;
extern float boty;
extern float obotx;
extern float oboty;
extern float scalex;
extern float scaley;

int PlotRes = DEFRES;

int scaleflag;
space(x0,y0,x1,y1){
	botx = 2.;
	boty = 2.;
	obotx = x0;
	oboty = y0;
	if(scaleflag)
		return;
	scalex = (8.0 * PlotRes)/(x1-x0);
	scaley = (8.0 * PlotRes)/(y1-y0);
}