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From: Harald Koenig <koenig@tat.physik.uni-tuebingen.de>
To: ConTeXt users <ntg-context@ntg.nl>
Subject: currentreferencerealpage wrong (how to detect even/odd pages?)
Date: Sun, 15 Mar 2015 16:40:27 +0100	[thread overview]
Message-ID: <20150315154027.GA22275@hl.fritz.box> (raw)

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?):-(

I'm writing some ">> ... <<" data to the log file:

pages           > flushing realpage 34, userpage 34
>> bildpage=35 eo=o currentreferencerealpage=35 <<
>> bildpage=35 eo=o currentreferencerealpage=35 <<
pages           > flushing realpage 35, userpage 35
>> bildpage=35 eo=o currentreferencerealpage=35 <<
>> bildpage=36 eo=e currentreferencerealpage=36 <<
pages           > flushing realpage 36, userpage 36
>> bildpage=37 eo=o currentreferencerealpage=0 <<  
>> bildpage=37 eo=o currentreferencerealpage=0 <<  
>> bildpage=37 eo=o currentreferencerealpage=0 <<  

typically after that "flushing realpage XX, userpage XX" messages (not from me;)
the currentreferencerealpage is set to the new page number.

but NOT for page 36:  here after "flushing realpage 35" 
it's still currentreferencerealpage=35 for the first picture on this page:-(


any idea how this can go wrong ?
what can I test, which debug info can  I provide ?
is there a possible 

the attached zip file contains a "minimal" example 
with only 2 pages and 4 images: on the 2nd page (#36)
the first image should bleed to the left like all other pictures...


so far this seems to happen 3 times according to the log file:

pages           > flushing realpage 10, userpage 10
>> bildpage=11 eo=o currentreferencerealpage=11 <<
>> bildpage=12 eo=e currentreferencerealpage=12 <<
pages           > flushing realpage 11, userpage 11


pages           > flushing realpage 14, userpage 14
>> bildpage=15 eo=o currentreferencerealpage=15 <<
>> bildpage=15 eo=o currentreferencerealpage=15 <<
>> bildpage=16 eo=e currentreferencerealpage=16 <<
pages           > flushing realpage 15, userpage 15



thanks for any help,

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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             reply	other threads:[~2015-03-15 15:40 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-15 15:40 Harald Koenig [this message]
2015-03-15 15:43 ` Harald Koenig
2015-03-15 16:51 ` Wolfgang Schuster
2015-03-15 19:13   ` Harald Koenig
2015-03-16 10:27     ` Hans Hagen

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