hp2ps: MARKs wrongly placed unless x-axis starts at zero

[Simon Marlow]

> The following seems to do the trick.
> 
> N
> 
> 
> *** Marks.bad.c 2003-07-30 18:00:12.000000000 +0100
> --- Marks.c     2003-07-30 18:00:15.000000000 +0100
> ***************
> *** 16,22 ****
>       floatish m;
> 
>       for (i = 0; i < nmarks; i++) {
> !       m = (markmap[i] / xrange) * graphwidth;
>         Caret(xpage(m), ypage(0.0), 4.0);
>       }
>   }
> --- 16,22 ----
>       floatish m;
> 
>       for (i = 0; i < nmarks; i++) {
> !       m = ((markmap[i] - samplemap[0]) / xrange) * graphwidth;
>         Caret(xpage(m), ypage(0.0), 4.0);
>       }
>   }

Committed; thanks.

Simon