Hi list, I'm trying to use postgis raster analysis and I think that it's incredibly slow. I wonder if there is a better raster organization for analysis. I've tryed both tiled raster and single row raster and tiled raster was a little bit faster when calling intersection.
I don't really understand the results of the intersection. I expected that the command would give me a linestring with one coordinate more than the linestring I gave. But instead it gives me many pieces of linestring. IMHO it's not a very usefull result. I'd have to join them to get the profile. Does anyone have any hints on how to improve performance? I'm using a little bit old Postgis 2.0 SVN version. It might be the problem. All the best, -- Mauricio de Paulo Engenheiro Cartografo MapeandoOBrasil <http://mapeandoobrasil.blogspot.com>
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