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From: Uwe Brauer <oub@mat.ucm.es>
To: emacs-orgmode@gnu.org
Subject: Xemacs: org-preview-latex-fragment, png not readable.
Date: Sat, 28 Jan 2012 21:20:48 +0100	[thread overview]
Message-ID: <87sjizvasf.fsf@mat.ucm.es> (raw)

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I made some progress in getting the function to work in

The main problem seemed to be the function 
org-dvipng-color which is called in

The original formulation was 

(defun org-dvipng-color (attr)
  "Return an rgb color specification for dvipng."
  (apply 'format "rgb %s %s %s"
	 (mapcar 'org-normalize-color
		 (color-values (face-attribute 'default attr

Which does not work for Xemacs. Thanks to Julian Bradfield,
the solution seems to be:

(defun org-dvipng-color (attr)
  "Return an rgb color specification for dvipng."
  (apply 'format "rgb %s %s %s"
	 (mapcar 'org-normalize-color
     (face-property 'default (intern (substring (symbol-name attr) 1)))))))

However the png which were generated where to small to be
readable. I attach one at the end of the message.

So I tried out in GNU Emacs 21.3 to comment out
org-dvipng-color in org-create-formula-image.
org-preview-latex-fragment then still works, so  is not
necessary for generating the pngs.

So I tried to do the same in Xemacs but the formulas in the
png files keep being  too small.

What could be the reason for this behavior?

Uwe Brauer 

The following attachment should be an integral. 


[-- Attachment #2: test3_7801a85c58c7aabc4553724e826b458ba08dda90.png --]
[-- Type: image/png, Size: 96 bytes --]

[-- Attachment #3: Type: text/plain, Size: 12 bytes --]

Gnu Emacs 

[-- Attachment #4: test_7ceb32811fbcd1322f595ca60dcc47456c20b5fe.png --]
[-- Type: image/png, Size: 268 bytes --]

             reply	other threads:[~2012-01-28 20:21 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-28 20:20 Uwe Brauer [this message]
2012-01-28 20:59 ` Solved (was: Xemacs: org-preview-latex-fragment, png not readable.) Uwe Brauer
2012-01-28 22:33   ` Solved Bastien
2012-01-29  0:13     ` Solved Nick Dokos
2012-01-29 14:57       ` change call-process also for GNU emacs? (was: Solved) Uwe Brauer
2012-01-29 17:42         ` Nick Dokos
2012-01-31 18:09     ` patch " Uwe Brauer
2012-03-16 17:57       ` patch Bastien

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