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To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
 Gerben Wierda via ntg-context <ntg-context@ntg.nl>
References: <D1288673-2F02-4FD8-BD8D-2EC444541F17@rna.nl>
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Date: Fri, 19 May 2023 12:15:40 +0200
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Subject: Re: [NTG-context] Probably simple: using a variable for
 \switchtobodyfont size
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From: Wolfgang Schuster via ntg-context <ntg-context@ntg.nl>
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Gerben Wierda via ntg-context schrieb am 19.05.2023 um 11:43:
> I want to use a variable for a font size so I can set it based on 
> language (as some translated texts have widely different sizes)
>
> This fails:
>
> %===========================
> \newdimen\relationsFontSize
> \relationsFontSize=8pt
> \starttext
> \switchtobodyfont[\relationsFontSize]
> Hello, world!
> \stoptext
> %===========================
>
> How can I use a variable to steer \switchtobodyfont size?

You need \the\<register>, i.e.

\switchtobodyfont[\the\relationsFontSize]

but I would use the measure command, e.g.

\definemeasure[relationsFontSize][8pt]
\starttext
\switchtobodyfont[\measure{relationsFontSize}]
Hello, world!
\stoptext

Wolfgang


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</head><body style="color: rgb(0, 0, 0);" text="#000000"><span>Gerben 
Wierda via ntg-context schrieb 
am 19.05.2023 um 11:43:</span><br>

<blockquote type="cite" 
cite="mid:D1288673-2F02-4FD8-BD8D-2EC444541F17@rna.nl" style="word-wrap:
 break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><meta
 http-equiv="Content-Type" content="text/html; charset=windows-1252">
  <div class="">I want to use a variable for a font size so I can set it
 based on language (as some translated texts have widely different 
sizes)</div>
  <div class=""><br class=""></div>
  <div class="">This fails:</div>
  <div class=""><br class=""></div>
  <div class="">%===========================</div>
  <div class="">\newdimen\relationsFontSize<br class="">\relationsFontSize=8pt<br
 class="">\starttext<br class="">\switchtobodyfont[\relationsFontSize]<br
 class="">Hello, world!<br class="">\stoptext<br class=""><div class="">%===========================</div></div>
  <div class=""><br class=""></div>
  <div class="">How can I use a variable to steer \switchtobodyfont 
size?</div></blockquote>

<br>

You need \the\&lt;register&gt;, i.e.<br>

<br>

\switchtobodyfont[\the\relationsFontSize]<br>

<br>

but I would use the measure command, e.g.<br>

<br>

\definemeasure[relationsFontSize][8pt]<br>

\starttext<br>

\switchtobodyfont[\measure{relationsFontSize}]<br>

Hello, world!<br>

\stoptext<br>

<br>

Wolfgang<br>

<br>



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