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Re: Djvu mode

From: Camm Maguire
Subject: Re: Djvu mode
Date: Mon, 03 Oct 2011 16:35:20 -0400
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux)

Greetings!  BTW, just to let you know I haven't forgotten and am
starting to look at your implementation now.  Needless to say, it
shows a lot more experience and professionalism with emacs lisp than
my first-ever attempt :-).

I have some questions, but I wonder if you would mind posting a short
series of keystrokes and their effects as I did to help me get a quick
grasp of the features.  I've looked at the bindings, but commands
which I think should be adding annotations seem to be producing no
effect on the 'A' *djvu* output page for example.

Then perhaps we might discuss a list of desiderata to figure out where
to go with the merged result.

Take care,

"Roland Winkler" <address@hidden> writes:

> On Sun Oct 2 2011 Camm Maguire wrote:
>> Currently the code ignores but preserves non-djvm-mode produced
>> annotations, but this should be easy to add.  
> I am sorry, I am confused! What kind of annotations are then added
> to the file? Are they incompatible with the standard djvu format?
> Why that?
>> Me too.  This is the main point.  I am currently using it for this
>> with success.  I'm not really sure though whether text notes are best
>> placed in the file, as you have to click on the box to see them (in
>> emacs djvm mode or djview), 
> Depending on how you set up the annotations. djview displays them
> immediately - at least for me (with DjVuLibre DjView 4.5 under GNU linux).
>> > nicely displays these annotations including any text layers they
>> > might have.
>> Emacs with this mode does too, but just for the annotations it writes
>> itself at the moment.  It labels these with a "djvm" comment.
> Why "djvm"? Why being incompatible?
>> This is a somewhat common indication of a poorly constructed text
>> layer by an early ocr engine.  I've always cleared this by a fresh
>> ocrodjvu --in-place foo.djvu.  Boxes then line up perfectly.  I think
>> the ocr code has only very recently matured.
> Again I am confused. Take the djvu file I attached earlier in this
> thread (produced with pdf2djvu-0.7.7). If I search a word via
> djview, it highlights the matches such that the boxes are perfectly
> aligned with the text. So I assume that the djvu file is OK. Yet
> with your mode the highlighting is shifted relative to what it is
> supposed to match. Something is misaligned here. 
> (My emacs is GNU Emacs (x86_64-unknown-linux-gnu, GTK+
> Version 2.20.1) of 2011-09-19.)
> What am I missing here?
> Roland

Camm Maguire                                        address@hidden
"The earth is but one country, and mankind its citizens."  --  Baha'u'llah

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