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
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