From: Jambunathan K <kjambunathan@gmail.com>
To: bug-gnu-emacs@gnu.org, Orgmode <emacs-orgmode@gnu.org>
Subject: 24.0.92; (image-size ...) on "large" images
Date: Tue, 31 Jan 2012 11:21:23 +0530 [thread overview]
Message-ID: <81y5soxvvo.fsf@gmail.com> (raw)
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@gnu.org/msg51014.html
My notes:
http://www.mail-archive.com/emacs-orgmode@gnu.org/msg51441.html
,---- http://www.mail-archive.com/emacs-orgmode@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
`----
next reply other threads:[~2012-01-31 5:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-31 5:51 Jambunathan K [this message]
2002-01-01 0:47 ` bug#10675: 24.0.92; (image-size ...) on "large" images Jambunathan 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
List information: https://www.orgmode.org/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=81y5soxvvo.fsf@gmail.com \
--to=kjambunathan@gmail.com \
--cc=bug-gnu-emacs@gnu.org \
--cc=emacs-orgmode@gnu.org \
/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.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
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 read-only IMAP folder(s) and NNTP newsgroup(s).