[NTG-context] Re: get measures as dimension in Lua

[Hans Hagen via ntg-context <ntg-context@ntg.nl>]

On 6/13/2024 7:24 PM, Henning Hraban Ramm wrote:
> Am 10.06.24 um 10:58 schrieb Henning Hraban Ramm:
> 
>>>      local namespace = tokens.getters.macro("??measure")
>>>
>>>      function tex.getmeasure(name,asdimen)
>>>          local value = tex.getdimensionvalue(namespace..name)
>>>          if asdimen then
>>>              return value .. "sp"
>>>          else
>>>              return value
>>>          end
> 
> So I needed just tex.getdimensionvalue(namespace..name)

just use tex.getmeasure in the upcoming

>> Not to be misunderstood, I couldn’t check yet, maybe I wasn’t clear:
>>
>> I need to process the measure as a dimension, like \measured{Bleed}.
>>
>> As far as I tried, neither tex.measured nor context.measured worked 
>> (but I wouldn’t swear on it, maybe I had a different error).
> 
> I understand now that a dimension in Lua is just a string.

no, it is a number (scaled points or sp) but it can have a string 
representation

> I also messed a few thing up when I converted my macros from 
> measure-macros to measures.
> 
> Now my image calculations work again. Phew!
Hans

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