[postgis-users] Topology GetRingEdges

Sandro Santilli strk at keybit.net
Thu May 3 07:18:03 PDT 2012


On Thu, May 03, 2012 at 06:56:34AM -0700, Bob Pawley wrote:
> Hi Sandro
> 
> I'm attempting to identify the linestrings that form a particular
> shape after identifying one of the linestrings.

By "a particular shape" you mean a polygon ?

> I'm doing this with my geometry in a table in the Public schema.
> 
> Perhaps, the point I missed was to dump all of the linestrings,
> polygons and points that form the geometry, into the new topology
> schema?

I think what you're missing is the toTopoGeometry function.
That function takes your geometry, imports component pieces
into a topology and gives you an handle which identifies all
the components.

--strk;

  ,------o-. 
  |   __/  |    Delivering high quality PostGIS 2.0 !
  |  / 2.0 |    http://strk.keybit.net - http://vizzuality.com
  `-o------'




More information about the postgis-users mailing list