Hi Thomas,

Not sure whether it helps or not, but in regards to combinations and Lua I
have had some challenges as well, but Hans' and Wolfgangs' solution with
externalfigures works fine for me now:

https://mailman.ntg.nl/pipermail/ntg-context/2021/103822.html
https://mailman.ntg.nl/pipermail/ntg-context/2021/103827.html

Adam

On Mon, Mar 28, 2022 at 2:42 PM Thomas A. Schmitz via ntg-context <
ntg-context@ntg.nl> wrote:

> And here comes question 2, a very basic one: on A4 landscape pages, I want
> to place two images next to each other (like the spread pages of a book).
> What would be the preferred way of the really competent users to do this,
> again keeping in mind that I want to loop over page numbers in a pdf file
> and thus am coding in Lua. So far, I have tried or thought about:
>
> 1. Embedded xtable
>
> This is what I’m using now, an xtable of two columns for every A4 page. It
> works, but I wonder if it’s a good method.
>
> 2. combinations
>
> This appeared to be the most natural approach (because it’s what
> combinations are for), but I ran into expansion problems, added a few
> “function () end” in my code, but couldn’t make it compile. Combinations,
> combined with framed and externalfigure, are difficult to write in Lua - or
> am I too stupid to find the winning combination (sorry for the puns).
>
> 3. columns
>
> Again, this would seen like a natural approach, having every A4 page set
> up as two columns, but maybe that’s overkill?
>
> I’d be curious to know what you think!
>
> All best
>
> Thomas
>
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