Hi On Tue, Aug 9, 2011 at 10:10 PM, Giovanni Manghi <giovanni.man...@gmail.com> wrote: > Hi Paolo, Tim > > unfortunately in the last months I had a very little time to follow the > developments, so maybe I will say obvious things. > > I just compiled QGIS master under Ubuntu against GDAL 1.8 and when > loading a raster I see the same message > > Warning: Object::connect: No such signal > QgsGdalProvider::statusChanged( QString ) > in /home/gio/qgis-Quantum-GIS-6a1073f/src/core/raster/qgsrasterlayer.cpp:2446 >
This may be fixed via a patch given to me by Etienne Sky - please let me know if it still does it. > the practical difference I see is that, as Tim describes, that rasters > are slower to open the first time, but then are faster as before, if not > more. This seems to me not a big deal when opening quite small images, > but it can be when opening multiple images at one time or when adding > very big rasters. > > For instance I have 3GB landsat images with overviews that before these > changes opened in a nick of time, now -the first time- they take a few > seconds (10/15). > > The same images without overviews before the changes took 10/15 seconds > to open, now -the first time- it takes much more. > > Another issue I guess can be if the rasters are stored in a place where > the aux.xml cannot be written. Yes thats why I was asking if the file permissions exist to write the aux.xml. If they don't behaviour should be the same as prior to my native raster stats commits i.e. stats will be recalced each time you open a project / add a layer and trigger something that needs the stats. > > I guess that the right behaviour is the new one, but maybe it is worth > add an option to avoid collecting stats on raster load? Ok I put a fix for this in master- can you tell me if it improves the situation? Regards Tim > > cheers > > -- Giovanni -- > > > > On Tue, 2011-08-09 at 15:49 +0200, Paolo Cavallini wrote: >> Hi all. >> With current master, I get bad performances in loading rasters (a <12Mb >> takes >5 >> sec); when double-clicking it from the QGIS browser, it is far slower (>20 >> sec). From >> the console: >> Warning: Object::connect: No such signal QgsGdalProvider::statusChanged( >> QString ) in >> /storage/build/Quantum-GIS/src/core/raster/qgsrasterlayer.cpp:2446 >> Any hint? >> All the bes > > -- 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 Skype: timlinux Irc: timlinux on #qgis at freenode.net ============================================== _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer