usr/src/lib/libplot/hp2648/hp2648.h

/*-
 * Copyright (c) 1980 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.proprietary.c%
 *
 *      @(#)hp2648.h    5.2 (Berkeley) %G%
 */

/*
 * Displays plot files on an hp2648a graphics terminals.  I have heard
 * that all hp plotting devices use the same control sequences, so this
 * might work for all hp devices capable of plotting.
 */

#include <stdio.h>

#define TERMINAL "/dev/tty"

#define ENQ     05
#define ACK     06
#define ESC     033
#define GRAPHIC '*'
#define MODE    'm'
#define PLOT    'p'
#define DISPLAY 'd'
#define PENUP   'a'
#define BINARY  'i'
#define ASCII   'f'
#define CR      '\n'

#define TRUE  1
#define FALSE 0

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

extern int shakehands;
extern int currentx;
extern int currenty;
extern int buffcount;
extern int fildes;
extern float lowx;
extern float lowy;
extern float scalex;
extern float scaley;
extern struct sgttyb sarg;