open.c

<B>Digital的Unix操作系统VAX 4.2源码</B>

#ifndef lint
static char SccsId[] = " @(#)open.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) 1980 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[] = "@(#)open.c	5.1 (Berkeley) 5/7/85";
#endif not lint

/*
 * Displays plot files on an HP7221 plotter.
 * Cloned from bgplot.c and gigiplot.c by Jim Kleckner
 * Thu Jun 30 13:35:04 PDT 1983
 *  Requires a handshaking program such as hp7221cat to get
 *  the plotter open and ready.
 */

#include <signal.h>
#include "hp7221.h"

int currentx = 0;
int currenty = 0;
double lowx = 0.0;
double lowy = 0.0;
double scale = 1.0;

openpl()
{
	int closepl();

	/* catch interupts */
	signal(SIGINT, closepl);
	currentx = 0;
	currenty = 0;
	printf( "~VR~W" );
	putMBP( 800, 2000 );
	putMBP( 7600, 9600 );
	printf( "~S" );
	putMBP( XMAX, YMAX );
	printf( "vA~*z" );

	space(0,0,XMAX,YMAX);
}