I'm not entirely sure, that it has to be that complicated .. what about using for example http://www.patrick-wied.at/static/heatmapjs/ ? You could collect all the geo-related data and do the (heat)map stuff on the client.
On Sunday, June 10, 2012 at 7:49 PM, Jamie Johnson wrote: > I had a request from a customer which to this point I have not seen > much similar so I figured I'd pose the question here. I've been asked > if it was possible to build a heat map from the results of a query. I > can imagine a process to do this through some post processing, but > that sounds very expensive for large/distributed indices so I was > wondering if with all of the new geospatial support that is being > added to lucene/solr there was a way to do geospatial faceting. What > I am imagining is bounding box being defined and that box being broken > into an N by N matrix, each of which would return counts so a heat map > could be constructed. Any other thoughts on this would be greatly > appreciated, right now I am really just fishing for some ideas.
