Hi Sandro,
Thanks a lot!
Can you also give me hint on what to do when I have an error:
psql:topology.sql:14: ERROR: SQL/MM Spatial exception - point not on edge
Basically, I wanted to create the topology to check it...
I think I cannot do anything with validatetopology until toTopoGeom is
achieved right?
Thanks again!!!
On 02/23/2012 11:13 AM, Sandro Santilli wrote:
On Thu, Feb 23, 2012 at 10:45:45AM +0100, Denis Rouzaud wrote:
Hi all,
Is there somewhere on the web a basic tutorial on how to deal with topology?
I am looking for a small step-by-step introduction.
I looked for a while: chapter 11 of current doc, the wiki, some
presentations, strk's blog...
Basically I have a table of pipes, and I would like to enable the
topology in it...
SELECT CreateTopology('pipes_topo', find_srid('public', 'pipes', 'geom));
SELECT AddTopoGeometryColumn('pipes_topo', 'pipes', 'topogeom', 'LINE');
UPDATE pipes SET topogeom = toTopoGeom(geom, 'pipes_topo', 1);
Good luck!
--strk;
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