[postgis-users] Topology Postgis 2.0

Sandro Santilli strk at keybit.net
Mon Sep 24 01:47:55 PDT 2012

On Mon, Sep 24, 2012 at 01:40:05AM -0700, ps.tiara wrote:
> i have questions, whether PostGIS 2.0 supports topology in 3 D?
> could you explain the detail steps to populate the geometry to the topology
> schema please?

It supports 2.5D topology (a Z value for each vertex, but no volumes).
You need to specify you want Z at CreateTopology time.
For populating it you can use the TopoGeom_add* family of functions.
See the PostGIS manual for details.



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