[gdal-dev] python GetDescription() returns empty strings on 1.7.1

[Matthieu Rigal]

Hi Even,
actually, I was a bit too fast... I had no equiped 1.6.1 version, so I 
"guessed" the result, from an output of one of the scripts I have.

Now that you told me, I reaccessed an old configuration to test it really, and 
indeed it does not work, BUT :

when I have one image with several layers having names created by other 
software, the GetDescription() did return it, whereas know it is not returning 
it...

Regards,
Matthieu

On Monday 11 October 2010 16:43:02 you wrote:
> Selon Matthieu Rigal <rigal at rapideye.de>:
> 
> Matthieu,
> 
> I can reproduce in trunk too. I'm not aware that this issue was known. I'm
> even a bit surprised this has worked before as the SetDescription() method
> in GDALPamRasterBand doesn't seem to have been ever overloaded, so a bit
> of investigation is necessary.
> 
> In 1.6.x branch, I suppose this worked before the band description was
> written in a .aux.xml file ?
> 
> Best regards,
> 
> Even
> 
> > Hi folks,
> > 
> > Currently running GDAL 1.7.1, I noticed a regression towards the 1.6.x
> > branch which I could not find in the tickets.
> > 
> > Teh GetDescription() always seems to return empty strings, except for
> > just created file and just setted description...
> > 
> > Here is a description of the bug, I don't think it is quite the expected
> > 
> > result :
> > >>> from osgeo import gdal
> > >>> xT = gdal.GetDriverByName('GTiff').Create('test-desc.tif',10,10,1)
> > >>> xB = xT.GetRasterBand(1)
> > >>> xB.SetDescription('test')
> > >>> xT = None
> > >>> xT2 = gdal.Open('test-desc.tif')
> > >>> xT2.GetRasterBand(1).GetDescription()
> > 
> > ''
> > 
> > The 1.6.1 returns:
> > 'test'
> > 
> > Is it a known bug ? Solved in further versions ?
> > 
> > Regards,
> > Matthieu
> > 
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-- 
Matthieu Rigal
Product Development

RapidEye AG                           Tel:  +49-(0)3381-89 04 331
Molkenmarkt 30                       Fax: +49-(0)3381-89 04 101
14776 Brandenburg/Havel
Germany                                  http://www.rapideye.de

RapidEye AG
Molkenmarkt 30
14776 Brandenburg an der Havel
Germany
 
Follow us on Twitter! www.twitter.com/rapideye_ag
 
Head Office/Sitz der Gesellschaft: Brandenburg an der Havel
Management Board/Vorstand: Wolfgang G. Biedermann
Chairman of Supervisory Board/Vorsitzender des Aufsichtsrates: 
Juergen Breitkopf 
Commercial Register/Handelsregister Potsdam HRB 17 796
Tax Number/Steuernummer: 048/100/00053
VAT-Ident-Number/Ust.-ID: DE 199331235
DIN EN ISO 9001 certified
 
*************************************************************************
Diese E-Mail enthaelt vertrauliche und/oder rechtlich geschuetzte
Informationen. Wenn Sie nicht der richtige Adressat sind oder diese
E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den
Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie
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only. It may contain privileged and confidential information. If you
have received this communication in error, any use, copying or
dissemination of its contents is strictly prohibited. Please erase all
copies of the message along with any included attachments and notify
RapidEye AG or the sender immediately by telephone at the number
indicated on this page.