National Library of Wales about dezoomify HOT 9 CLOSED

Can you give a valid url to a page conatining a zoomify viewer ?

from dezoomify.

http://www.llgc.org.uk/drychdigidol/jws/JWS00001/37/zoom.html?lng=en

Thanks for your help, Emyr

from dezoomify.

Ok, the format used here seems a bit more complex than what is used normally in zoomify, and I didn't found any documentation about it, making it difficult to create a dezoomifier.

From what I understand:
Instead of using one file per tile, they use only one file that contains all the data.
That file is available on the server: http://www.llgc.org.uk/zoomify/delweddau/jws/jws00042.pff
But the viewer doesn't download it.

More exactly, it downloads parts of it, through API calls.

• Seems to give the metadata: http://www.llgc.org.uk/zoomify/ZoomifyServlet?&requestType=1&file=delweddau%2Fjws%2Fjws00042.pff
• Gives the indexes to use in the last API call: http://www.llgc.org.uk/zoomify/ZoomifyServlet?begin=17402&requestType=2&end=19450&file=delweddau%2Fjws%2Fjws00042%2Epff
• Return a slice of the pff file, with a header at the beginning. If the parameters are correct, the slice forms a valid JPEG file: http://www.llgc.org.uk/zoomify/ZoomifyServlet?file=delweddau/jws/jws00042.pff&requestType=0&begin=1622936&end=1628538&vers=106&head=16342

from dezoomify.

I think I now mostly understand how the format works, and I started to document it here:
https://github.com/lovasoa/dezoomify/wiki/PFF-format-description

Implementing it in dezoomify might actually not be too hard.
I'll do it if I have time.

from dezoomify.

I almost finished documenting the format. Everything needed to create a plugin is there, so if anyone is interested and has more time than me...

It must be a matter of hours.

from dezoomify.

Done !
It's in production here: http://ophir.alwaysdata.net/dezoomify/dezoomify.html

It's totally different from the traditionnal zoomify format, so I created a new plugin: "Zoomify PFF".

from dezoomify.

Awesome!

Sorry not to have replied sooner - only now I am sitting down after getting
chores done and children to bed.

I am in awe! I don't know how you worked all that out but I am really,
really impressed by your work.

Merci beaucoup, mon ami.

Is there anything that I can do for you in return?

Leave a review also?

Thanks a merci again,

Emyr

On 13 March 2015 at 20:27, Ophir LOJKINE [email protected] wrote:

Done !
It's in production here:
http://ophir.alwaysdata.net/dezoomify/dezoomify.html

It's totally different from the traditionnal zoomify format, so I created
a new plugin: "Zoomify PFF".

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from dezoomify.

You are very welcome!
Thank you for opening this bug.
The only way you can thank me is by continuing to use this, and other open-source softwares.

I just wrote a small utility in C that converts PFF files to JPEG: pff-extract. If you have many files, or large files to convert, you might want to use it instead of dezoomify, it is faster.

from dezoomify.

Thanks so much for your hard work in solving this problem. I probably won't
be able to use the utility, pff-extract, which you wrote as I don't have
the technical ability and have no real programming experience. However I
will be able to use the extractor, which is awesome, as is your skills!

Merci beaucoup,

Emyr Morgan.

On 14 March 2015 at 16:47, Ophir LOJKINE [email protected] wrote:

You are very welcome!
Thank you for opening this bug.
The only way you can thank me is by continuing to use this, and other
open-source softwares.

I just wrote a small utility in C that converts PFF files to JPEG:
pff-extract https://github.com/lovasoa/pff-extract. If you have many
files, or large files to convert, you might want to use it instead of
dezoomify, it is faster.

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Reply to this email directly or view it on GitHub
#3 (comment).

from dezoomify.