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From: Hans Hagen <pragma@wxs.nl>
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Subject: Re: Overlays...
Date: Wed, 21 Mar 2001 09:58:16 +0100
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At 11:28 PM 3/20/01 +0100, Joop Susan wrote:
>
>Hello,
>
>I have a document with different backgrounds (external PDFs) for even and 
>odd pages.
>
>I have found how to get the right background on the right page.
>
>\defineoverlay
>    [papier]
>    [{\ifodd\realpageno {\externalfigure[voorkant][width=\overlaywidth,heig
>ht=\overlayheight]}
>     \else {\externalfigure[achterkant][width=\overlaywidth,height=\overlay
>height]}
>     \fi}]
>
>My problem is that the different backgrounds require setting a different 
>topspace and height for the page.
>
>My question: Where can I place the different setuplayout[topspace=..,height
>=..] commands so the are evaluated again for every page (different for 
>even and odd pages)?

You can use: 

\setupbackgrounds
  [leftpage]
  [background=LeftPage]

\defineoverlay
  [LeftPage]
  [\vbox to \overlayheight 
     {\vskip 1.23cm
      \externalfigure[...][]}]

and alike, so: put the fig in a box [watch the leftpage/rightpage option,
it saves you some if's]

i'm my local alpha release i have multiple layouts [page dependent] so that
may be an option for the future 

Hans

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                                  Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                      Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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