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From: "Procházka Lukáš Ing." <LPr@pontex.cz>
To: josephcanedo@gmail.com
Cc: ConTeXt <ntg-context@ntg.nl>
Subject: Re: \externalfigure locator
Date: Tue, 21 Mar 2017 08:50:18 +0100	[thread overview]
Message-ID: <op.yxfxd4kt3h68c7@lprx> (raw)
In-Reply-To: <58cf940a.a2acdf0a.443e3.7546@mx.google.com>

Hello Joseph,

thank you for reaction.

I guess:

- "figures.path' is a ConTeXt variable, is it?
- There are more extensions possible, not only .pdf. So how to access other extensions Ctx is to manage?
- I guess that 'lpdf.epdf.load(figure_file)' is just a .pdf loader - how to load other pics (like .png, .jpg, .svg...)?

Best regards,

Lukas


On Mon, 20 Mar 2017 09:34:19 +0100, <josephcanedo@gmail.com> wrote:

> Hi,
>
> Personally I use the lua variable named : figures.path
>
> It’s a lua table which contains directories names you provide in directory= in \setupexternalfigures:
>
> for _, path in ipairs(figures.paths) do
>      local figure_file = path .. '/' .. file
>       local doc = lpdf.epdf.load(figure_file)  -- assume pdf (just an example)
>      if doc then
>           ….
>      end
> done
>
> There are perhaps helper functions as well.
>
> Joseph
>
> De : Procházka Lukáš Ing.
> Envoyé le :lundi 20 mars 2017 09:27
> À : ConTeXt
> Objet :[NTG-context] \externalfigure locator
>
> Hello,
>
> is there a Lua version of external figure locator used by \externalfigure?
>
> Suppose having:
>
> ----
> \setupexternalfigures[location={default,local,global},directory={../../Pics}]
> \externalfigure[mill]                % Finds e.g. in d:\Ctx-Beta\tex\texmf-context\tex\context\sample\common\mill.png
> \externalfigure[MyPrettyPicture.jpg] % Finds e.g. in c:\Lukas\Pics\MyPrettyPicture.jpg
> ----
>
> And I need a function like:
>
> ----
> \startluacode
>    local path
>
>    path = assert(ExternalFileLocator("mill") == "d:/Ctx-Beta/tex/texmf-context/tex/context/sample/common/mill.png")
>    path = assert(ExternalFileLocator("MyPrettyPicture.jpg") == "c:/Lukas/Pics/MyPrettyPicture.jpg")
> \stopluacode
> ----
>
> So what to use in place of "ExternalFileLocator()"?
>
> TIA.
>
> Best regards,
>
> Lukas
>
>


-- 
Ing. Lukáš Procházka | mailto:LPr@pontex.cz
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  parent reply	other threads:[~2017-03-21  7:50 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-20  8:26 Procházka Lukáš Ing.
     [not found] ` <58cf940a.a2acdf0a.443e3.7546@mx.google.com>
2017-03-21  7:50   ` Procházka Lukáš Ing. [this message]
2017-03-22  8:30     ` Procházka Lukáš Ing.
2017-03-22 10:55       ` Hans Hagen

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