[gdal-dev] Where to find a FlatGeobuf test file?

[Rahkonen Jukka]

Hi,

Has there been a change in writing the layer extent?
I thought that the test https://github.com/OSGeo/gdal/blob/e4d1f7ff474ceeffd69b1ceef3fa635428788e8c/autotest/ogr/ogr_flatgeobuf.py#L182 is testing with TestCapability(ogr.OLCFastGetExtent) if spatial index exists. At least the test file  data/testfgb/poly_no_index.fgb shows false for this capability.

I am not really interested in the layer extent, what I want to know is how can I check if an existing FlatGeobuf file has spatial index or not.

-Jukka-

Lähettäjä: Even Rouault <even.rouault at spatialys.com>
Lähetetty: perjantai 6. joulukuuta 2024 12.37
Vastaanottaja: Rahkonen Jukka <jukka.rahkonen at maanmittauslaitos.fi>; 'gdal-dev at lists.osgeo.org' (gdal-dev at lists.osgeo.org) <gdal-dev at lists.osgeo.org>
Aihe: Re: [gdal-dev] Where to find a FlatGeobuf test file?


Hi Jukka,
Le 06/12/2024 à 11:13, Rahkonen Jukka a écrit :
Next question: Why this gives true for me?

OLCFastGetExtent != OLCFastSpatialFilter

The layer extent is written in the FlatGeoBuf layer even in the SPATIAL_INDEX=NO case, so retrieving the extent is fast.

Even



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