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Message-ID:  <20090122225417.GA5988@irwin.vpn.uni-freiburg.de>
Date:         Thu, 22 Jan 2009 23:54:17 +0100
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From: Heiko Oberdiek <oberdiek@UNI-FREIBURG.DE>
Subject: Re: changing page dimensions in mid-document
To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE
In-Reply-To:  <859ec5630901220712k114d02c9t93c28fc8cd74b662@mail.gmail.com>
Precedence: list
Status: R

On Thu, Jan 22, 2009 at 04:12:32PM +0100, Morten Høgholm wrote:

> On Thu, Jan 22, 2009 at 3:55 PM, Paul Thompson <patjah@sbcglobal.net> wrote:
>
> > Your comment about the calc package is very interesting.  I don't
> > understand why it will not work.  Can you direct me to something to
> > clarify the problem?
> 
> With calc loaded
>   \setlength\mylen{1pt+2pt}
> expands to (after a few steps)
>   \calc@assign@generic\calc@Askip\calc@Bskip \mylen {1pt+2pt}
> with \calc@assign@generic defined as
>   \def\calc@assign@generic#1#2#3#4{\let\calc@A#1\let\calc@B#2%
>     \calc@open(#4!%
>     \global\calc@A\calc@B\endgroup#3\calc@B}
> Therefore, \global\setlength results in \calc@A being \let globally to
> \calc@Askip and \mylen being set locally.

\global\setlength{\hsize}{\columnwidth}
can be fixed by an explicite global assignment:

\setlength{\hsize}{\columnwidth}
\global\hsize=\hsize

Yours sincerely
  Heiko <oberdiek@uni-freiburg.de>