On Fri, Jan 27, 2012 at 10:30 AM, Rahkonen Jukka
<[email protected]>wrote:
> Hi,
>
> Is the Geotools .qix using the same format than GDAL? If it is then there
> are one or two more alternatives. GDAL comes often (but not always) with a
> Mapserver utility "shptree". And then it is possible to use GDAL shapefile
> driver indexing option described in Spatial and attribute indexing section
> at http://gdal.org/ogr/drv_shapefile.html
>
>
Yes, the format is the same, but the .qix files generated by GeoServer
should be smaller and perform somewhat better
(we have a few heuristics to get a small but effective index, avoid
isolated laves with single records and the like).
A recent version of uDig will generate the same .qix file as GeoServer
though
> It is impossible to guess that index can be created with ogrinfo. This is
> taken from gdal-dev list.
>
> "The SQL command to create a spatial index can be given through ogrinfo.
> ogrinfo -sql "CREATE SPATIAL INDEX ON file1 [DEPTH N]" file1.shp"
>
Nice one :-)
Cheers
Andrea
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