ntg-context - mailing list for ConTeXt users
 help / color / mirror / Atom feed
From: Aditya Mahajan <adityam@umich.edu>
To: Hans Hagen <pragma@wxs.nl>
Cc: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Use figures without file extension
Date: Sat, 26 May 2012 10:04:01 -0400 (EDT)	[thread overview]
Message-ID: <alpine.LNX.2.02.1205260959020.2561@ybpnyubfg.ybpnyqbznva> (raw)
In-Reply-To: <4FC0DD0B.2050306@wxs.nl>

On Sat, 26 May 2012, Hans Hagen wrote:

> On 26-5-2012 04:08, Aditya Mahajan wrote:
>> Currently, ConTeXt only recognizes the type of figure from the file
>> extension. If a filename does not have an extension, \externalfigure fails.
>> 
>> For example:
>> 
>> $ cp `luatools hacker.jpg` something
>
> ah .. i see, no extension .. too tricky to support that as they we'd need to 
> run an identify on the image which is probably not what we want

However adding `method=jpeg` works, even if the image is not a jpeg!

> i've made a simple 'identify' but am yet unsure how to use that in the 
> current lookup strategy (as i want to avoid too much overhead ... using 
> images without suffix is bad anyway)

I am using a script to typeset rss feed to a pdf for reading on kindle. 
Some blog engines (e.g. typepad) do not set an extension for the image. As 
such, I cannot control the input. For the moment, I am using a workaround:

\let\normalexternalfigure\externalfigure
\unexpanded\def\externalfigure
     {\dodoubleargument\rssfeed_externalfigure}

\def\rssfeed_externalfigure[#1][#2]%
         {\normalexternalfigure[#1][\c!scale=2000, \c!method=JPEG, #2]}}

Notice the method=JPEG.

But, I think that I'll need to wrap a custom wrapper anyways, and some 
pages contain gif images which cause luatex to crash.

Aditya
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


  reply	other threads:[~2012-05-26 14:04 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-26  2:08 Aditya Mahajan
2012-05-26  9:28 ` Hans Hagen
2012-05-26 13:39 ` Hans Hagen
2012-05-26 14:04   ` Aditya Mahajan [this message]
2012-05-26 14:23     ` Hans Hagen
2012-05-26 14:26       ` luigi scarso
2012-05-27  1:43         ` Rogers, Michael K
2012-05-27  2:49           ` Aditya Mahajan
2012-05-27 13:09             ` Rogers, Michael K

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=alpine.LNX.2.02.1205260959020.2561@ybpnyubfg.ybpnyqbznva \
    --to=adityam@umich.edu \
    --cc=ntg-context@ntg.nl \
    --cc=pragma@wxs.nl \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).