From: Wolfgang Schuster <schuster.wolfgang@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: currentreferencerealpage wrong (how to detect even/odd pages?)
Date: Sun, 15 Mar 2015 17:51:44 +0100 [thread overview]
Message-ID: <D694F771-1B64-4AE9-A94F-DDCF5E367232@gmail.com> (raw)
In-Reply-To: <20150315154027.GA22275@hl.fritz.box>
> Am 15.03.2015 um 16:40 schrieb Harald Koenig <koenig@tat.physik.uni-tuebingen.de>:
>
> Hi,
>
> right now I use \currentreferencerealpage to detect if I'm on an even or odd page
> (because my picture placement rules depend on it) like this:
>
> \newcount\bildpage
> \bildpage=1
> % ...
> \def\bild#1...{%
> {\global\bildpage=\realpageno}%
> \ifodd\bildpage \def\eo{o}\else \def\eo{e}\fi
> % ...
> \if o\eo odd...\else even...\fi
> \message{>> bildpage=\the\bildpage \space eo=\eo \space currentreferencerealpage=\currentreferencerealpage \space << }%
> }
>
> but now I notice that for some pages/pictures the value of \currentreferencerealpage
> is not correct (only for the first picture on a new page?):-(
To test whether you’re on a left or right page you can use the \signalrightpage and \doifrightpageelse commands.
\setuppagenumbering[alternative=doublesided]
%\setuppagenumbering[alternative={singlesided,doublesided}]
\starttext
\dorecurse{100}
{\dontleavehmode\signalrightpage
\doifrightpageelse{Right page}{Left page}
\blank[line]}
\stoptext
Wolfgang
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next prev parent reply other threads:[~2015-03-15 16:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-15 15:40 Harald Koenig
2015-03-15 15:43 ` Harald Koenig
2015-03-15 16:51 ` Wolfgang Schuster [this message]
2015-03-15 19:13 ` Harald Koenig
2015-03-16 10:27 ` Hans Hagen
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