[Qgis-user] singelband pseudocolor takes a very long time to classify a 21698x24647 raster

2012-08-20 Thread G. Allegri
I'm testing the new raster styling with qgis-dev (from osgeo4w) on a Windows 7 64bit machine. My single band raster (21698x24647) takes a very long time to do the color ramp classification with singleband pseudocolor. So much time that I ended it before completion (minutes after starting it). In QG

Re: [Qgis-user] singelband pseudocolor takes a very long time to classify a 21698x24647 raster

2012-08-20 Thread Etienne Tourigny
Hi, which ramp(s) are you using, and how many classification steps? Can you test in linux? Can you make the file available? Etienne On Mon, Aug 20, 2012 at 7:50 AM, G. Allegri wrote: > I'm testing the new raster styling with qgis-dev (from osgeo4w) on a Windows > 7 64bit machine. > My single

Re: [Qgis-user] singelband pseudocolor takes a very long time to classify a 21698x24647 raster

2012-08-20 Thread G. Allegri
Hi Etienne, which ramp(s) are you using, and how many classification steps? > any ramp (qgis defaults and cpt-city behave the same) > > Can you test in linux? > I will do as soon as I restore my Ubuntu VM... > > Can you make the file available? > Mmm, I suppose no, both for license issues a

Re: [Qgis-user] singelband pseudocolor takes a very long time to classify a 21698x24647 raster

2012-08-20 Thread Etienne Tourigny
On Mon, Aug 20, 2012 at 11:52 AM, G. Allegri wrote: > Hi Etienne, > >> which ramp(s) are you using, and how many classification steps? > > > any ramp (qgis defaults and cpt-city behave the same) > >> >> >> Can you test in linux? > > > I will do as soon as I restore my Ubuntu VM... > >> >> >> Can y

Re: [Qgis-user] singelband pseudocolor takes a very long time to classify a 21698x24647 raster

2012-08-21 Thread G. Allegri
Driver: AIG/Arc/Info Binary Grid Hi Etienne, I past the gdalinfo output below. giovanni Size is 21698, 24647 Coordinate System is: PROJCS["unnamed", GEOGCS["Unknown datum based upon the International 1924 ellipsoid", DATUM["Not_specified_based_on_International_1924_ellipsoid",

Re: [Qgis-user] singelband pseudocolor takes a very long time to classify a 21698x24647 raster

2012-08-21 Thread G. Allegri
PS: the projections is EPSG:3003 (or 102091). The OTFR is disabled. giovanni 2012/8/21 G. Allegri > Driver: AIG/Arc/Info Binary Grid > Hi Etienne, > I past the gdalinfo output below. > > giovanni > > > Size is 21698, 24647 > Coordinate System is: > PROJCS["unnamed", > GEOGCS["Unknown datum