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vhernandez / jwsProcessor

A program to convert and process Jasco SpectraManager (JWS) files.
https://sites.google.com/site/victorhr02/jwsprocessor
GNU General Public License v2.0
11 stars 4 forks source link

fails to read .jws file #2

Closed l3iggs closed 11 years ago

l3iggs commented 11 years ago

the error i'm getting is jwslib.read_header(): This is not a .JWS file, four magic bytes are not valid.

My .jws file can be found here: http://marba.stanford.edu/398.jws

vhernandez commented 11 years ago

I cannot access the file, but I guess your file is from a recent version of the Jasco dichroism software and they have changed the file format.

I can try to add support to this new file format when I can have a look at the file.

Thanks for reporting.

2013/8/27 l3iggs notifications@github.com

the error i'm getting is jwslib.read_header(): This is not a .JWS file, four magic bytes are not valid.

My .jws file can be found here: http://marba.stanford.edu/398.jws

— Reply to this email directly or view it on GitHubhttps://github.com/vhernandez/jwsProcessor/issues/2 .

l3iggs commented 11 years ago

I'm curious to know why you can't access the file, that link I gave should be good. Thank you very much for looking into this. I've emailed the file to the @gmail address listed in your profile here.

l3iggs commented 11 years ago

By the way: I commented out the magic byte check in your code to see if that would fix things. Then I got some vector length mismatch error or something similar. I commented out the vector length check and the program became unresponsive. So it's not a totally trivial fix.

vhernandez commented 11 years ago

I have worked with the file you sent me and I have made a little script that can extract data from it. The file format is an entirely different fileformat than the one that is supported my jwsProcessor (jasco software v. 1.5). The new file format is an OLE file (more info here: http://www.openoffice.org/sc/compdocfileformat.pdf). Fortunately there is a little python library that can read these OLE files, OleFileIO_PL, which I have used it to write the script. The library is here: http://www.decalage.info/python/olefileio You can download the script from here: https://www.dropbox.com/s/nkfiswipzrs2abr/oletest.py You will need to install OleFileIO_PL (or simply copy OleFileIO_PL.py in the same directory as the script). I hope that it is useful for you. I am a little bit busy at the moment and won't be able to work on this in a while.

2013/8/28 l3iggs notifications@github.com

By the way: I commented out the magic byte check in your code to see if that would fix things. Then I got some vector length mismatch error or something similar. I commented out the vector length check and the program became unresponsive. So it's not a totally trivial fix.

— Reply to this email directly or view it on GitHubhttps://github.com/vhernandez/jwsProcessor/issues/2#issuecomment-23427351 .

vhernandez commented 11 years ago

I have updated the code to support the new file format. Could you test the changes?

l3iggs commented 11 years ago

Works like a charm! Thank you!