GNU bug report logs - #10675
24.0.92; (image-size ...) on "large" images

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Jambunathan K <kjambunathan <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#10675: closed (24.0.92; (image-size ...) on "large" images)
Date: Fri, 15 Nov 2013 04:15:03 +0000

[Message part 1 (text/plain, inline)]

Your message dated Tue, 01 Jan 2002 06:17:24 +0530
with message-id <87pu4uvqw3.fsf <at> gmail.com>
and subject line Re: bug#10675: 24.0.92; (image-size ...) on "large" images
has caused the debbugs.gnu.org bug report #10675,
regarding 24.0.92; (image-size ...) on "large" images
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
10675: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=10675
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Jambunathan K <kjambunathan <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org, Orgmode <emacs-orgmode <at> gnu.org>
Subject: 24.0.92; (image-size ...) on "large" images
Date: Tue, 31 Jan 2012 11:21:23 +0530

org-odt.el relies on (image-size ...) to determine pixel dimensions of
an image. For "large" images, this API returns "false" values. It would
be wonderful, if Emacs returns just the true value of the image or
nothing at all.

On a related note, IIRC, during batch export there is no way I can use
create-image + image-size to determine pixel dimensions of the image. Is
there a reliable and uniform way to determine size of images that are
*never* intended to be displayed.

Original issue:
http://www.mail-archive.com/emacs-orgmode <at> gnu.org/msg51014.html

My notes:
http://www.mail-archive.com/emacs-orgmode <at> gnu.org/msg51441.html

,---- http://www.mail-archive.com/emacs-orgmode <at> gnu.org/msg51441.html
| Re: [O] [ODT] image scaling overridden by long caption
| 
| Jambunathan K
| Mon, 30 Jan 2012 20:59:37 -0800
| 
| Andreas Leha <andreas.l...@med.uni-goettingen.de> writes:
| 
| 
| >>> #+label: fig:baz
| >>> #+name: baz
| >>> #+attr_odt: :scale 0.5
| >>> #+header: :file baz.png
| >>> #+header: :width 7200 :height 3600 :res 600
| >>> #+begin_src R :exports results :results graphics
| >>>   plot(1:10, 1:10)
| >>> #+end_src
| 
| Image that R outputs is 7200-by-3600.
| 
| >> #+begin_src emacs-lisp
| >>   (list (* max-image-size (frame-pixel-width)) 
| >>         (* max-image-size (frame-pixel-height)))
| >> #+end_src
| >
| > #+results:
| > | 3648.0 | 4320.0 |
| 
| Emacs will "refuse to load" images that cannot fit in 3640-by-4320
| area. Note that max-image dimensions is "tightly coupled" with the frame
| size.
| 
| >> #+begin_src emacs-lisp
| >>     (message "%S" (ignore-errors 
| >>                     (image-size (create-image "baz.png") 'pixels)))
| >> #+end_src
| >
| > #+results:
| > : (30 . 30)
| 
| Instead of loading a large image, Emacs tries to create a "safe"
| 30-by-30 pixel area (whatver it is).
| 
| The solution is to instruct Emacs to handle higher image sizes. Just
| bump the value of max-image-size. For example, add this to init file.
| 
| #+begin_src emacs-lisp
|   (setq max-image-size (* 2 max-image-size)) ;; modify scale 
| #+end_src
`----

[Message part 3 (message/rfc822, inline)]

From: Jambunathan K <kjambunathan <at> gmail.com>
To: 10675-done <at> debbugs.gnu.org
Cc: emacs-orgmode <at> gnu.org
Subject: Re: bug#10675: 24.0.92; (image-size ...) on "large" images
Date: Tue, 01 Jan 2002 06:17:24 +0530

OP here.  Closing it.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.