Wow this seems like really impressive work, at a very cool scale!
It is more or less the kind of tool I dreamt to have.
Processing a 1.2 million topology is really not easy,
I wonder if CGAL implementation is multiprocessed.
Cheers,
Rémi-C
2015-01-22 8:00 GMT+01:00 Paolo Cavallini
Joseph,
With St_Relate (http://postgis.net/docs/ST_Relate.html) we can get all
kind of relations between geometries.
You can get boundary intersections, interior intersections, interior
intersections without boundary intersections all possibilities are
supported.
St_Relate uses the
Steve,
I had the same issue when working with geometries using srid=4326 . I
was also following the same link
(http://blog.mathieu-leplatre.info/use-postgis-topologies-to-clean-up-road-networks.html)
Then I tried with some projected geometries (units = meters) and the
problem was gone. I am
For two cents, a quick but inaccurate solution might be to shrink your
polygon slightly by using st_buffer() with a negative radius?
Ben
On 22 January 2015 at 16:50, toni hernández t...@sigte.udg.edu wrote:
Joseph,
With St_Relate (http://postgis.net/docs/ST_Relate.html) we can get all
kind
Thanks.
I think I am ensuring the geometries are both projected to 32648 (zone 48N
UTM). The tolerance being sent to topology.toTopoGeom is 1.0, presumably this
is in meters. I will try the next run with 0.001 which is appropriate if
the tolerance is being applied to 4326 coordinates
Steve,
I transformed the geometries into a new table.
From there I created a new topology using the new reference system (25831)
On 22/01/2015 16:35, Miller, Stephan wrote:
Thanks.
Here is the code as it now stands. I was using 4326 and topology will
not work for geography coordinates.
