xref: /csrg-svn/lib/libplot/dumb/dumb.h (revision 48505)
1*48505Sbostic /*-
2*48505Sbostic  * Copyright (c) 1980 The Regents of the University of California.
3*48505Sbostic  * All rights reserved.
419970Sdist  *
5*48505Sbostic  * %sccs.include.proprietary.c%
619970Sdist  *
7*48505Sbostic  *	@(#)dumb.h	5.2 (Berkeley) 04/22/91
8*48505Sbostic  */
9*48505Sbostic 
10*48505Sbostic /*
1115433Sralph  * This accepts plot file formats and produces the appropriate plots
1215433Sralph  * for dumb terminals.  It can also be used for printing terminals and
1315433Sralph  * lineprinter listings, although there is no way to specify number of
1415433Sralph  * lines and columns different from your terminal.  This would be easy
1515433Sralph  * to change, and is left as an exercise for the reader.
1615433Sralph  */
1715433Sralph 
1815433Sralph #include <math.h>
1915433Sralph 
2015433Sralph #define scale(x,y) y = LINES-1-(LINES*y/rangeY +minY); x = COLS*x/rangeX + minX
2115433Sralph 
2215433Sralph extern int minX, rangeX;	/* min and range of x */
2315433Sralph extern int minY, rangeY;	/* min and range of y */
2415433Sralph extern int currentx, currenty;
2515433Sralph extern int COLS, LINES;
2615433Sralph 
2715433Sralph /* A very large screen! (probably should use malloc) */
2815433Sralph #define MAXCOLS		132
2915433Sralph #define MAXLINES	90
3015433Sralph 
3115433Sralph extern char screenmat[MAXCOLS][MAXLINES];
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