52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
#ifndef lint
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static char sccsid[] = "@(#)open.c 1.1 94/10/31 SMI"; /* from UCB 4.1 6/27/83 */
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#endif
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#
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#include <sgtty.h>
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/* gsi plotting output routines */
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# define DOWN 012
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# define UP 013
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# define LEFT 010
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# define RIGHT 040
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# define BEL 007
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# define ACK 006
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# define CR 015
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# define FF 014
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# define VERTRESP 48
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# define HORZRESP 60.
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# define HORZRES 6.
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# define VERTRES 8.
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/* down is line feed, up is reverse oyne feed,
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left is bwckspace, right is space. 48 points per inch
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vertically, 60 horizontally */
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int xnow, ynow;
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int OUTF;
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struct sgttyb ITTY, PTTY;
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float HEIGHT = 6.0, WIDTH = 6.0, OFFSET = 0.0;
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int xscale, xoffset, yscale;
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float botx = 0., boty = 0., obotx = 0., oboty = 0.;
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float scalex = 1., scaley = 1.;
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openpl ()
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{
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int reset();
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xnow = ynow = 0;
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OUTF = 1;
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printf("\r");
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gtty(OUTF, &ITTY);
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signal (2, reset);
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PTTY = ITTY;
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PTTY.sg_flags &= ~CRMOD; /* don't map lf */
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/* initialize constants */
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xscale = 4096./(HORZRESP * WIDTH);
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yscale = 4096 /(VERTRESP * HEIGHT);
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xoffset = OFFSET * HORZRESP;
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return;
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}
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openvt(){
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openpl();
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}
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