Hi list,<br>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.<br>I've tryed both tiled raster and single row raster and tiled raster was a little bit faster when calling intersection.<br>
<br>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.<br>
<br>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.<br>All the best,<br clear="all"><br>-- <br>Mauricio de Paulo<br>Engenheiro Cartografo<br>
<a href="http://mapeandoobrasil.blogspot.com" target="_blank">MapeandoOBrasil</a><br><br>