[Qgis-user] qgis 1.7 geotiff problem

[Giovanni Manghi]

Hi Stefan,

you are right, there is this issue in qgis >= 1.7.

We lost many time tracking it down and yesterday Pedro V. finally found
the reason, and there is an easy workaround.

http://hub.qgis.org/issues/3867


I have now to change the title and give the ticket a new description.


cheers

-- Giovanni --


On Fri, 2011-06-17 at 00:38 -0700, Stefan Sylla wrote:
> Dear list,
> 
> I have some very large geotiff-files (up to 10 GB) from satellite imagery
> that I need to load into QGIS. To speed up the rendering, I created pyramids
> on those images with gdaladdo. In QGIS 1.6 this worked very fine and the
> images where loaded (after adding them with "Add Raster Layer") within a few
> seconds. 
> 
> Now, after I updated to QGIS 1.7, it takes several minutes to load the
> images into QGIS with "Add Raster Layer" (after being loaded, however,
> everything works fine and I can zoom in and out without any time-consuming
> rendering processes).
> 
> Anyone has an idea why QGIS 1.7 takes so much time to load the images, as it
> was working fine in QGIS 1.6?
> 
> I am using QGIS on Ubuntu 10.10 64bit.
> 
> Hope someone can help
> Stefan
> 
> --
> View this message in context: http://osgeo-org.1803224.n2.nabble.com/qgis-1-7-geotiff-problem-tp6486091p6486091.html
> Sent from the qgis-user mailing list archive at Nabble.com.
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