void
openpl(void)
{
if ( isatty(fileno( stdout )) ) {
shakehands = TRUE;
fildes = open(TERMINAL, 0);
gtty(fildes, &sarg);
sarg.sg_flags = sarg.sg_flags | RAW;
stty(fildes, &sarg);
sarg.sg_flags = sarg.sg_flags & ~RAW;
}
else {
shakehands = FALSE;
}
buffcount = 0;
currentx = 0;
currenty = 0;
buffready(8);
putchar(ESC);
putchar(GRAPHIC);
putchar(DISPLAY);
putchar('c');
putchar(ESC);
putchar(GRAPHIC);
putchar(PLOT);
putchar(BINARY);
space(0,0,720,360);
}
void
point(int xi, int yi)
{
if(xsc(xi)!=currentx || ysc(yi)!=currenty)
move(xi,yi);
buffready(1);
putchar('d');
}
erase()
{
buffready(8);
putchar(ESC);
putchar(GRAPHIC);
putchar(DISPLAY);
putchar('a');
putchar(ESC);
putchar(GRAPHIC);
putchar(PLOT);
putchar(BINARY);
}
