[Qgis-developer] Raster statistics
lists at linfiniti.com
Sat Jul 17 04:33:57 EDT 2010
2010/7/14 Maxim Dubinin <sim at gis-lab.info>:
> Hi all,
> there are two sets of statistics now for rasters, visible when you
> open raster properties. One is taken aux-file if it exists using GDAL
> and another is some kind of internal QGIS one.
> Question why not use just one, GDAL's?
Back in the day when I wrote that, GDAL only estimated the stats
whereas the QGIS implementation computes them completely (I think this
situation is still the same today). Perhaps this functionality is not
something important and could be stripped out (or made into a plugin)
- it would certainly speed things up with rasters in some contexts.
> Implication is that QGIS stats are saved only session wide, if you
> remove raster from the project it needs to be recalculated.
> Qgis-developer mailing list
> Qgis-developer at lists.osgeo.org
Tim Sutton - QGIS Project Steering Committee Member (Release Manager)
Please do not email me off-list with technical
support questions. Using the lists will gain
more exposure for your issues and the knowledge
surrounding your issue will be shared with all.
Visit http://linfiniti.com to find out about:
* QGIS programming and support services
* Mapserver and PostGIS based hosting plans
* FOSS Consulting Services
Irc: timlinux on #qgis at freenode.net
More information about the Qgis-developer