Hi, Pablo. I have no idea of what you need to do, but in grph-inc.lua you find the following (line 709):

implement { name = "figurestatus",   actions = { get, context }, arguments = { "'status'",  "string", "string" } }

So that \figureheight calls this function via \clf_figurestatus and, in turn, it calls figures.get. If I'm right,

figures.get('status','height','0') -- or '"status"' ?

would have to return the value you're asking for (at the TeX end, "sp" units are added). A MWE wouldn't hurt. I hope this helps or, at least, it leads you through the right direction.

Cordially,

Jairo

El mié, 27 de oct. de 2021 a la(s) 14:20, Pablo Rodriguez via ntg-context (ntg-context@ntg.nl) escribió:
On 10/26/21 6:31 PM, Pablo Rodriguez via ntg-context wrote:
> [...]
> Is there a way that I can get a number from context.figureheight, such
> as I get it from tex.dimen.paperheight?

Sorry for insisting, I need it for a Lua script that in the relevant
line reads:

  loader_times:write('.box placeholder width=' .. context.figurewidth
     .. ' height=' .. context.figureheight)

I cannot concatenate string and function (and I need the number, not the
unit).

Is there no way of doing it?

Many thanks for your help,

Pablo
--
http://www.ousia.tk
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