[gdal-dev] Open source vector geoprocessing libraries?
ari.jolma at gmail.com
Wed Jan 13 09:49:02 EST 2010
Jan Hartmann wrote:
> On 13-1-2010 2:33, Mateusz Loskot wrote:
>> OGR does not provide any spatial indexing layer common to various
>> vector datasets. For many simple formats it performs the brute-force
> Just curious, would it make sense / be possible to implement indexing
> in OGR, something like a
> generalized version of Mapserver's shptree, the "quadtree-based
> spatial index for a shapefiles"?
It could make sense to have a in-memory index for in-memory geometries.
Pehaps use GiST library(1) (I don't know whether it can use in-memory
indexes) for geometries in an OGRGeometryCollection or OGRMemLayer if
For other formats it might not make sense because OGR is not responsible
for the actual geometries. As have been said, one should use PostGIS
format, which has this functionality built-in, for larger and more
Just my quick thoughts.
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