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...
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
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