mailing-list for TeXmacs Users

[Alex D <address@hidden>]

Hi,

I think you're best bet might be to convert the images using the convert utility from imagemagick like this

convert infile.jpg -compress jpeg ep3:outfile.eps
or
convert infile.png -compress zip ep3:outfile.eps

and then include them in the TeXmacs document like this: <postscript|./file.eps|6.5in|||||>

This should be a bit faster. Look at the files fast.tm and slow.tm at http://cs.wisc.edu/~aleksand/texmacs/figs-test.tar.gz

Also, add these lines to your my-init-texmacs.scm in ~/.TeXmacs/progs/

(use-modules (utils library tree))

(define active-elems 
  (lambda (elem) 
    (append (select (buffer-tree) `(:* (:and-not 0 inactive) ,elem))

            (select (buffer-tree) `(:%0 ,elem))
            (select (buffer-tree) `(:%1 ,elem)))))

(define inactive-elems 
  (lambda (elem) 
    (select (buffer-tree) `(:* inactive ,elem))))

(define activate-elem

  (lambda (elem)
    (let ((t (tree-ref elem :up)))
      (tree-set! t elem))))

(define deactivate-elem 
  (lambda (elem) 
    (tree-set! elem (tree 'inactive elem))))


(menu-extend texmacs-extra-menu

  (=> "Alex"
    ("activate all"
      (begin (for-each activate-elem (inactive-elems 'postscript))))
    ("deactivate all"
      (begin (for-each deactivate-elem (active-elems 'postscript))))))


This will add entries to the menu bar. You can use deactivate all when working on the document, and then activate all just before printing.


Let me know how this works for you.

On Tue, Jul 7, 2009 at 7:09 AM, Werner Hug <address@hidden> wrote:

Dear Joris,

Kind thanks for your reply.

Scrolling: we re-tested it on a machine with 2 GB of memory (my X41 has only 0.5 GB, though in principle that should be enough). Pictures do get resized when a document is opened first, then when it is scrolled foreward, and in general again when it is scrolled backward. This can be identified by the warning messages in Konsole if Texmacs is opened via the command-line. Sometimes, repeating scrolling over a set of a few pictures is faster, but not in general if scrolling to a more distant part of the document is required.

The garbage collection message sometimes does appear as a konsole messages.

It won't help to solve the present difficullties, but it is a consolation to know that an upcoming Qt port might eliminate the problem.

Again, many thanks,

Werner Hug


Joris van der Hoeven schrieb:

On Sun, Jul 05, 2009 at 02:29:12PM +0200, Werner Hug wrote:
 

Possibly there is an option to get the text opened for editing and have the figures linked without them being displayed, what is what you seem to suggest, but we have not found it. Please let us know if such an option exists.
 

You can try

       Insert -> Specific -> Screen
       Insert -> Specific -> Printer

Notice that I do not really understand the problem.
It is true that ghostscript is slow for displaying pictures
(in the upcoming Qt port, this problem will be solved for most image formats).
Nevertheless, displayed images are cached, so there should be no problem
when scrolling, only some delay when viewing a picture for the first time.
Occasionally, pictures are also gc-ed, which sometimes requires them to be reloaded,
but this should happen only one or two times.

Best wishes, Joris