[QGIS-trac] Re: [Quantum GIS] #3735: GDAL stats not used

[Quantum GIS]

#3735: GDAL stats not used
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        Reporter:  rblazek           |         Owner:  rblazek      
            Type:  bug               |        Status:  closed       
        Priority:  minor: annoyance  |     Milestone:  Version 1.7.0
       Component:  Rasters           |       Version:  Trunk        
      Resolution:  wontfix           |      Keywords:               
Platform_version:                    |      Platform:  All          
        Must_fix:  No                |   Status_info:  0            
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Changes (by timlinux):

 * cc: john.callahan@… (added)
  * status:  new => closed
  * resolution:  => wontfix


Comment:

 Hi

 The stats collected by gdal are only partially useful:

 - they do not include stddev
 - the min/max are estimated
 - there is no mean
 - there are various other stats not included

 Because of this we don't use the gdal layer statistics and rather collect
 them ourselves. The process of collecting stats can be made more efficient
 by caching the stats in our own xml file similar to the aux.xml file -
 which is something we are planning for a future release.

 For now I am closing this ticket as we will not be using GDAL stats in the
 forseeable future.

 Regards

 Tim

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/3735#comment:1>
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