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Annotation of 42BSD/usr.lib/libplot/t300s/open.c, revision 1.1.1.1

1.1       root        1: #ifndef lint
                      2: static char sccsid[] = "@(#)open.c     4.1 (Berkeley) 6/27/83";
                      3: #endif
                      4: 
                      5: #
                      6: #include <sgtty.h>
                      7: /* gsi plotting output routines */
                      8: # define DOWN 012
                      9: # define UP 013
                     10: # define LEFT 010
                     11: # define RIGHT 040
                     12: # define BEL 007
                     13: # define ACK 006
                     14: # define CR 015
                     15: # define FF 014
                     16: # define VERTRESP 48
                     17: # define HORZRESP 60.
                     18: # define HORZRES 6.
                     19: # define VERTRES 8.
                     20: /* down is line feed, up is reverse oyne feed,
                     21:    left is bwckspace, right is space.  48 points per inch
                     22:    vertically, 60 horizontally */
                     23: 
                     24: int xnow, ynow;
                     25: int OUTF;
                     26: struct sgttyb ITTY, PTTY;
                     27: float HEIGHT = 6.0, WIDTH = 6.0, OFFSET = 0.0;
                     28: int xscale, xoffset, yscale;
                     29: float botx = 0., boty = 0., obotx = 0., oboty = 0.;
                     30: float scalex = 1., scaley = 1.;
                     31: 
                     32: openpl ()
                     33: {
                     34:        int reset();
                     35:                xnow = ynow = 0;
                     36:                OUTF = 1;
                     37:                printf("\r");
                     38:                gtty(OUTF, &ITTY);
                     39:                signal (2, reset);
                     40:                PTTY = ITTY;
                     41:                PTTY.sg_flags &= ~CRMOD;        /* don't map lf */
                     42:                /* initialize constants */
                     43:                xscale  = 4096./(HORZRESP * WIDTH);
                     44:                yscale = 4096 /(VERTRESP * HEIGHT);
                     45:                xoffset = OFFSET * HORZRESP;
                     46:                return;
                     47: }
                     48: 
                     49: openvt(){
                     50: openpl();
                     51: }

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