On Sat, Jul 5, 2014 at 8:17 PM, G. Allegri <gioha...@gmail.com> wrote: > Sorry for the buzz. It's not QGIS fault, it's GDAL itself which reads the > ASCII Grid as Float64, but I wonder why contrarily gdalinfo and > gdal_translate treats it as Float32...
Float64 in QGIS layer properties metadata Data Type and gdalinfo giving Float32 on the same file? Radim > > 2014-07-05 18:56 GMT+02:00 G. Allegri <gioha...@gmail.com>: > >> I haven't spot tha exact point where this happens but QGIS exports >> Float64, even if the origin was Float32. >> >> giovanni >> >> >> 2014-07-05 16:54 GMT+02:00 G. Allegri <gioha...@gmail.com>: >> >>> Causally I hit the save as raster dialog, and I tried to export a raster >>> to layer (coming from an ASCII Grid source) to Geotiff, with no creation >>> options set. >>> The result was a file 3 times bigger then the original ASCII, and 5 times >>> bigger then the Geotiff created by gdal_translate. >>> >>> gdalinfo on the files give same results (except statistics missing from >>> the one created by RasterFileWriter). >>> Does gdal_translate do some optimizations that RFW doesn't? >>> I wasn't aware that two Geotiffs, apparently with the same properties, >>> could be so different in size... >>> >>> giovanni >>> >>> -- >>> Giovanni Allegri >>> http://about.me/giovanniallegri >>> Twitter: https://twitter.com/_giohappy_ >>> blog: http://blog.spaziogis.it >>> GEO+ geomatica in Italia http://bit.ly/GEOplus >> >> >> >> >> -- >> Giovanni Allegri >> http://about.me/giovanniallegri >> Twitter: https://twitter.com/_giohappy_ >> blog: http://blog.spaziogis.it >> GEO+ geomatica in Italia http://bit.ly/GEOplus > > > > > -- > Giovanni Allegri > http://about.me/giovanniallegri > Twitter: https://twitter.com/_giohappy_ > blog: http://blog.spaziogis.it > GEO+ geomatica in Italia http://bit.ly/GEOplus _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
