35 lines
883 B
C
35 lines
883 B
C
/*
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* Copyright (c) 1980 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*/
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/* @(#)hp7221.h 1.1 94/10/31 SMI; from UCB 5.1 5/7/85 */
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/*
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* Displays plot files on an HP7221 plotter.
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* Cloned from bgplot.c and gigiplot.c by Jim Kleckner
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* Thu Jun 30 13:35:04 PDT 1983
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* Requires a handshaking program such as hp7221cat to get
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* the plotter open and ready.
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*/
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#include <stdio.h>
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#include <math.h>
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#define ESC 033
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#define PI 3.141592659
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#define ENDOFSTRING 03
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/* The graphics address range is 0..XMAX, 0..YMAX. */
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#define XMAX 1800
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#define YMAX 1800
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#define scaleX(xi) ((int) ((xi - lowx)*scale +0.5))
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#define scaleY(yi) ((int) ((yi - lowy)*scale +0.5))
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extern int currentx;
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extern int currenty;
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extern double lowx;
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extern double lowy;
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extern double scale;
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