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Annotation of 43BSD/usr.lib/libplot/gigi/gigi.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:  *     @(#)gigi.h      5.1 (Berkeley) 5/7/85
                      7:  */
                      8: 
                      9: /*
                     10:  * Displays plot files on a gigi "graphics" terminal.
                     11:  */
                     12: 
                     13: #include <stdio.h>
                     14: #include <math.h>
                     15: 
                     16: #define ESC    033
                     17: #define PI     3.141592659
                     18: 
                     19: /*
                     20:  * The graphics address range is 0..XMAX, YMAX..0 where (0, YMAX) is the
                     21:  * lower left corner.
                     22:  */
                     23: #define XMAX   767
                     24: #define YMAX   479
                     25: #define xsc(xi)        ((int) ((xi -lowx)*scalex +0.5))
                     26: #define ysc(yi)        ((int) (YMAX - (yi - lowy)*scaley +0.5))
                     27: 
                     28: extern int currentx;
                     29: extern int currenty;
                     30: extern double lowx;
                     31: extern double lowy;
                     32: extern double scalex;
                     33: extern double scaley;

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