From: Harald Koenig <koenig@tat.physik.uni-tuebingen.de>
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 20:13:51 +0100 [thread overview]
Message-ID: <20150315191351.GA26046@hl.fritz.box> (raw)
In-Reply-To: <D694F771-1B64-4AE9-A94F-DDCF5E367232@gmail.com>
On Mar 15, Wolfgang Schuster wrote:
>
> > 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
this doesn't seem to work well -- at least not within \placefigure
I've tried this replacement in my \bild macro which should be equivalent (or better?)
% \ifodd\bildpage \def\eo{o}\else \def\eo{e}\fi
% \ifodd\bildpage \def\lr{r}\else \def\lr{l}\fi
\dontleavehmode\signalrightpage
\doifrightpageelse{\def\eo{o}}{\def\eo{e}}%
\doifrightpageelse{\def\lr{r}}{\def\lr{r}}%
(with and without \dontleavehmode\signalrightpage)
and now I get more wrong picture placements for the first picture on some pages...
I vaguely remember that
{\global\bildpage=\currentreferencerealpage}%
{\global\bildpage=\realpageno}%
was a hack from Hans to work arround "issues" to get the real page number within those floats ?!
Harald
--
"I hope to die ___ _____
before I *have* to use Microsoft Word.", 0--,| /OOOOOOO\
Donald E. Knuth, 02-Oct-2001 in Tuebingen. <_/ / /OOOOOOOOOOO\
\ \/OOOOOOOOOOOOOOO\
\ OOOOOOOOOOOOOOOOO|//
\/\/\/\/\/\/\/\/\/
Harald Koenig // / \\ \
koenig@tat.physik.uni-tuebingen.de ^^^^^ ^^^^^
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next prev parent reply other threads:[~2015-03-15 19:13 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
2015-03-15 19:13 ` Harald Koenig [this message]
2015-03-16 10:27 ` Hans Hagen
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