OGR GeoJSON Driver

[mloskot]

Today, on my website I  announced usable prototype of new OGR driver to access datasources based on GeoJSON format.

Currently, the driver lives in SVN repository of MOSS4G project:

 http://trac.osgeo.org/moss4g/browser/trunk/libs/gdal/extensions/ogr

I'd like to ask if there is an interest in this driver and if it would be possible to add it to the official OGR drivers set.

[warmerdam]

Mateusz,

Go ahead and add it, with all appropriate changes. Please make sure at least a small test script is added in gdal autotest, and some modest documentation in the OGR driver style is available.

[mloskot]

Patch with OGR GeoJSON changes to existing GDAL files (does not include ogr\ogrsf_frmts\geojson subdirectory)

[hobu]

Basics of the driver added in r12632 r12633 and r12634

[mloskot]

I'm passing this ticked to Hobu who offered his help in porting GeoJSON driver to the repo. Big thanks to Hobu!

[hobu]

Better 3d support r12636

[mloskot]

Fixed JSON-C parser so it handles numbers in E notation (r12647)

Fixed problems with unsupported or not readable geometries reported by the GeoJSON reader as NULL pointers. So, we still generate features object but with NULL geometries and avoid segfaults (r12468). Now, the driver can successfully access sample GeoServer? datasource using following URL:

http://sigma.openplans.org:8080/geoserver/wfs?request=GetFeature&typeName=topp:states&version=1.0.0&outputformat=json

[mloskot]

Started the ogr_geojson.py test script (r12689)

[mloskot]

I added some basic test cases to the ogr_geojson.py script and a bunch of .geojson files (r12690).

[mloskot]

I'm closing this ticket and I believe we can consider the GeoJSON driver as successfully incorporated to the GDAL upstream.