Hi all Since PostGIS 2.2, you can now do the clustering server-side. See [1] It is not as simple as using a QGIS code feature, and it is only available for PostGIS layers, but it could do the job. You will probably need to play with other methods such as ST_Centroid for getting a point and other aggregates function to count the features involved.
[1] http://postgis.net/docs/manual-2.2/ST_ClusterWithin.html Cheers, Michaƫl 2015-11-12 10:30 GMT+01:00 Neumann, Andreas <a.neum...@carto.net>: > Hi, > > On 2015-11-12 10:22, Anita Graser wrote: > > > On Nov 12, 2015 9:11 AM, "Neumann, Andreas" <a.neum...@carto.net> wrote: > > > > I also think that - what Anita wants - is a special case of a cluster > renderer (one that actually does not cluster, but only count how many > features are at the same geometry). To have this as a special option of the > displacement renderer would be a quite misleading ... > > > > But the cluster renderer also allows for a search radius (similar to the > heatmap) - while the displacement renderer only looks at features at the > exact same location (I know there is now a tolerance, but this was only > added later). > > Exactly this tolerance makes the renderer much more interesting to me. > Never had a use case for the original displacement renderer. > > but still we shouldn't misuse terms. Displacement is the opposite of > clustering. What you want is clustering, not displacement. > > Andreas > > > > > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user >
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