Fwd: ogr extension

[Bernhard Herzog]

Nina Hüffmeyer <nhueffme at intevation.de> writes:

> Thuban knows three types of geometries: points, lines and polygons. In ogr,
> more types are known, e.g. geometry type wkbUnknown.

What does wkbUnknown mean?  How is Thuban supposed to treat it?  What
other types of geometries are there that Thuban may need to support?

   Bernhard

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