> One issue there is still. My original was a highly compressed (deflate) > tiff with a file size of 550 MB. Initial transform into Rasterlite with > png tiles yielded a 1.2 GB Rasterlite db. Condiderably bigger but still > understandable. However, gdaladdo has no option to compress internal > overviews which make most sense with Rasterlite.
Good point. Support for specifying options was actually missing. Added in trunk in r24660. See below diff for the syntax : Index: frmts/rasterlite/frmt_rasterlite.html =================================================================== --- frmts/rasterlite/frmt_rasterlite.html (révision 24659) +++ frmts/rasterlite/frmt_rasterlite.html (copie de travail) @@ -76,6 +76,10 @@ <p>If no internal overview is detected, the driver will try using external overviews (.ovr files).</p> +<p>Starting with GDAL 2.0, options can be used for internal overviews building. They can be specified with the +RASTERLITE_OVR_OPTIONS configuration option, as a comma separated list of the above creation options. See below +examples.</p> + <h2>Examples:</h2> <ul> @@ -172,6 +176,12 @@ </pre> </li> +<li>Creating internal overviews with options (GDAL 2.0 or later): +<pre> +$ gdaladdo RASTERLITE:my_db.sqlite,table=source 2 4 8 16 --config RASTERLITE_OVR_OPTIONS DRIVER=GTiff,COMPRESS=JPEG,PHOTOMETRIC=YCbCr +</pre> +</li> + </ul> _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
