Re: Why must I move frame to center it?

["John R. Culleton" <john@wexfordpress.com>]

On Monday 27 November 2006 19:44, Aditya Mahajan wrote:
> \definepapersize  [bok]   [width=6.0in,height=9.0in]
> \setuppapersize   [bok]   [letter]
> \setuplayout
> [marking=on,margin=.5in,textwidth=4.5in,width=middle,location=middle]
> \setupcolors      [state=start]
>
>
> \noheaderandfooterlines
>
> \startuseMPgraphic{bg}
>      boolean debug ; debug := false ;
>      path Page ; Page = (fullsquare xyscaled (\overlaywidth,
> \overlayheight)) ;
>      path p ; p := Page enlarged  -10mm ;
>      path q ; q := Page enlarged  -15mm ;
>      if debug :
>        draw Page  withcolor green;
>        draw p withcolor red ;
>        draw q withcolor blue ;
>      fi ;
>      drawoptions(withcolor .85white) ;
>      fill reverse topboundary    q -- topboundary    p -- cycle ;
>      fill reverse bottomboundary q -- bottomboundary p -- cycle ;
>      drawoptions(withcolor .65white) ;
>      fill reverse leftboundary   q -- leftboundary   p -- cycle ;
>      fill reverse rightboundary  q -- rightboundary  p -- cycle ;
>      setbounds currentpicture to Page ;
> \stopuseMPgraphic
>
> \defineoverlay[coverpage][\useMPgraphic{bg}]
>
> \starttext
> \setupbackgrounds[page]
>                   [background=coverpage]
>
> \centerline{Part I}
> \vskip .4in
> \centerline{Prerequisite for Success:}
> \vskip .2in
> \centerline{A Thorough Understanding}
> \vfil
> \tfa
>
> \page[yes]
> \setupbackgrounds[page]
>                   [background=]
>
> \input knuth
>
> \stoptext

That works perfectly without my kludgy workarounds.  Therefore that is what I 
will use!

Many thanks.
-- 
John Culleton
Able Indexing and Typesetting
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