Re: [OpenLayers-Users] Cluster strategy but on the server

2009-04-06 Thread Yves Moisan
> For my needs I have come up with this: > > * A separate table for the cluster features, with columns >for the geometry (a point), a feature count and the scale >(i.e. I store the cluster points for all scales in one >table) > > * A view for each scale > >"create view cluster_1

Re: [OpenLayers-Users] Cluster strategy but on the server

2009-04-06 Thread Nils Weinander
users-requ...@openlayers.org wrote: Didrik: > >> I don't know if this is interesting for you but this postgis thread was >> related to the subject of your mail : >> >> http://postgis.refractions.net/pipermail/postgis-users/2005-July/008642.html Interesting, but as one of the replies said, the clu

Re: [OpenLayers-Users] Cluster strategy but on the server side

2009-04-04 Thread Yves Moisan
> > I don't know if this is interesting for you but this postgis thread was > related to the subject of your mail : > > http://postgis.refractions.net/pipermail/postgis-users/2005-July/008642.html > That series of posts is about statistical data clustering as in k-means and the like. Give a k-

Re: [OpenLayers-Users] Cluster strategy but on the server side

2009-04-04 Thread Didrik Pinte
On Wed, 2009-04-01 at 21:15 +0200, Kris Geusebroek wrote: > Hi Nils, > > I didn't try this myself but i could imagine that you could cluster a > bit in your database. > I'm using oracle and have functionality to show only features within a > certain boundary of a province. > I create a view which

Re: [OpenLayers-Users] Cluster strategy but on the server side

2009-04-01 Thread Yves Moisan
> has anyone tried clustering features on the server > side, and if so how did you do it? Please post any answer to the list. I'm very interested too ;-) Cheers, Yves ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinf

Re: [OpenLayers-Users] Cluster strategy but on the server side

2009-04-01 Thread Kris Geusebroek
Weinander Sent: Wednesday, April 01, 2009 7:46 PM To: OpenLayers Users Subject: [OpenLayers-Users] Cluster strategy but on the server side Hi all This is a bit peripheral, sorry about that. I have tried the cluster strategy on a WFS layer and it works excellently. But, when zoomed out, there

[OpenLayers-Users] Cluster strategy but on the server side

2009-04-01 Thread Nils Weinander
Hi all This is a bit peripheral, sorry about that. I have tried the cluster strategy on a WFS layer and it works excellently. But, when zoomed out, there are simply too many features to run the clustering on the client (I tried with 10,000 which the browser wasn't too happy about and in the final