Am 27.10.2011 um 11:23 schrieb Thomas A. Schmitz:
> On 10/25/2011 12:27 PM, Thomas A. Schmitz wrote:
>> Wolfgang, Hans,
>>
>> thanks a lot, this works now. Will now try and move the code to a
>> ctxluafile and see if I can make it work again. If not, I'll be back; no
>> good deed goes unpunished...
>>
>> Thomas
>
> OK, I'm slowly making progress processing xml in lua. One naive question now:
> how can I have access to and manipulate the textwidth dimension? In other
> words, given
>
> 0.4\textwidth
>
> what would be the equivalent in lua code? I tried
>
> 0.4 * tex.dimen.textwidth
>
> or
>
> 0.4 * tex.dimen["textwidth"]
>
> but couldn't make that work. Also tried grepping the tex/context/base/*.lua
> files for width, but couldn't find anything immediately obvious.
With “tex.dimen[…]” you get the value in scaled points but util-dim.lua
provides some functions to convert the value in points, centimeter etc.
\starttext
\startluacode
context.blackrule{ width = number.topoints(tex.dimen["textwidth"]/2) }
\stopluacode
\stoptext
Wolfgang
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