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Annotation of 43BSDReno/lib/libplot/dumb/dumb.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)dumb.h      5.1 (Berkeley) 5/7/85
                      7:  *
                      8:  *
                      9:  * This accepts plot file formats and produces the appropriate plots
                     10:  * for dumb terminals.  It can also be used for printing terminals and
                     11:  * lineprinter listings, although there is no way to specify number of
                     12:  * lines and columns different from your terminal.  This would be easy
                     13:  * to change, and is left as an exercise for the reader.
                     14:  */
                     15: 
                     16: #include <math.h>
                     17: 
                     18: #define scale(x,y) y = LINES-1-(LINES*y/rangeY +minY); x = COLS*x/rangeX + minX
                     19: 
                     20: extern int minX, rangeX;       /* min and range of x */
                     21: extern int minY, rangeY;       /* min and range of y */
                     22: extern int currentx, currenty;
                     23: extern int COLS, LINES;
                     24: 
                     25: /* A very large screen! (probably should use malloc) */
                     26: #define MAXCOLS                132
                     27: #define MAXLINES       90
                     28: 
                     29: extern char screenmat[MAXCOLS][MAXLINES];

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