Re: Figures and Lua (continuing "Number of pages by Lua of a figure to be inserted?" somehow)

[Aditya Mahajan <adityam@umich.edu>]

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On Fri, 12 Apr 2013, Procházka Lukáš Ing. - Pontex s. r. o. wrote:

> Hello,
>
> I tried to make a "more minimal" example.
>
> Still we have:
>
> files:
>
> ./t3.mkiv
> ./T/Kn.pdf
>
> and code:
>
> ----
> \startluacode
> test = function(fn)
>   local fig = figures.push{name = fn}
>     if figures.identify().status.status ~= 0 then
>       figures.check()
>     end
>   figures.pop()
>
>   return fn .. ": " .. (fig.used.pages or "?") .. "\\par"
> end
> \stopluacode
>
> \starttext
> AAA
>
> \startluacode
>   context(test("T/Kn.pdf")) -- Found - OK
>   context(test("Kn.pdf")) -- Not found - OK
> \stopluacode
>
> \setupexternalfigures[directory=T]
>
> \startluacode
>   context(test("Kn.pdf")) -- Not found (or unknown number of pages) - 
> UNEXPECTED - why? ("3rd call")
> \stopluacode
>
> \externalfigure[Kn.pdf][scale=625] % Found - OK
> \stoptext
> ----
>
> The 3rd call of 'test()' seems to not locate 'Kn.pdf' although the path was 
> altered by preceding \setupexternalfigures.
>
> How to modify the 'test()' to work properly even in the 3rd case?

Look at figres.setpath() in grph-inc.lua and search figures.paths and 
figures_paths to see how it is used.

Aditya

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