[Qgis-developer] Possible bug? Viewing rasters at 2:1 scale

Tue Mar 24 03:19:53 EDT 2009

Hi, I'm speaking at scale 2:1, that is 1:0,5. My raster have pyramids, and
at that scale, QGIS (and every program) takes the largest base.

             Paolo Cavallini                                               
             <cavallini at faunal                                             
             ia.it>                                                     To 
                                       luca_manganelli at comune.trento.it    
             23/03/2009 14.03                                           cc 
                                       qgis-developer at lists.osgeo.org      
                                                                   Subject 
             Please respond to         Re: [Qgis-developer] Possible bug?  
             cavallini at faunali         Viewing rasters at 2:1 scale        
                   a.it                                                    

luca_manganelli at comune.trento.it ha scritto:
> I discovered that viewing any type of raster at 2:1 scale is VERY slow.
>
> This is strange because, franlky, you see a scaled image of about 10x10
> pixels.

Hi.
Have you tried pyramidizing it?
What are the results?
--
Paolo Cavallini: http://www.faunalia.it/pc