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From: Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
	Willi Egger <context@boede.nl>
Subject: Re: A strange request...
Date: Wed, 20 Feb 2019 17:52:38 +0100	[thread overview]
Message-ID: <47937401-d74b-f124-0241-d4da5c150574@gmail.com> (raw)
In-Reply-To: <9CEFB9C7-60C1-40F6-90C7-84C96A095B21@boede.nl>

Willi Egger schrieb am 20.02.19 um 17:23:
> Hi all,
> 
> I am siting with a project of making a “dwarsligger”, you know these books, printed on bible-thin-printing paper, which are about  12 x 8 cm. One opens them while holding them ‘landscape’ with the spine on the top…
> 
> Now there is of course a little struggle with the page numbering. The reading page consists out of the even page together with the following uneven page. It is easy to print on the uneven page a page number, however this will result in uneven page numbers only throughout the book.
> 
> My question is, whether there is an algorithm to print page numbers as follows:
> 
> 
> 1  2  3  4  5  6  7  8  9 (this is the ordinary numbering)
> 1     2     3     4     5 (this is the requested numbering)
> 
> Does someone have an idea how to solve this?

Variant 1:

\setuppapersize[A5,landscape]

\setuppagenumbering[location=none]

\startsetups [pagenumber]
   \doifoddpageelse
     {\cldcontext{"\letterpercent d",(\pagenumber+1)/2}}
	{}
\stopsetups

\setupheadertexts [\directsetup{pagenumber}]

\starttext
\dorecurse{10}{\samplefile{knuth}}
\stoptext


Variant 2:

\defineexpandable[1]\DwarsliggerNumber
   {\cldcontext{"\letterpercent d",(#1+1)/2}}

\defineconversion [dwarsligger] [\DwarsliggerNumber]

\setuppapersize[A5,landscape]

\setupuserpagenumber[numberconversion=dwarsligger]

\setuppagenumbering[location=none]

\setupheadertexts [\doifoddpageelse{\prefixedpagenumber}{}]

\starttext
\dorecurse{10}{\samplefile{knuth}}
\stoptext


Wolfgang
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      parent reply	other threads:[~2019-02-20 16:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-20 16:23 Willi Egger
2019-02-20 16:32 ` luigi scarso
2019-02-20 16:52 ` Wolfgang Schuster [this message]

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