Hi, You can use something like
SELECT areas.id, SUM( ST_Length( lines.geometry) ) FROM lines,areas WHERE ST_Intersects(lines.geometry,areas.geometry) GROUP BY areas.id ;
Greetings, Denis On 07/03/2012 01:36 PM, Matej Mailing wrote:
Hi all, We have a layer that contains polygons and another that contains lines that lie on them. Parts of the lines are laying "inside" the polygons and I would like to get a sum of all the lengths of lines that lie on the polygons. What is the easiest way to achieve this? TIA, Matej _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
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