Hi Marco, ST_Extent();
http://postgis.refractions.net/documentation/manual-1.5/ST_Extent.html Fred On Mon, Apr 12, 2010 at 5:47 PM, Marco Lechner - FOSSGIS e.V. < [email protected]> wrote: > hi > i'm calculating some hundred boxes of linegeometries to get the extent > of each of the records. > now i need the overall extent (box). is there a way to get the box of a > bunch of boxes? or what is the fastest way to calculate this. I guess > merging all the linegeometries and the calculating the box might not be > the fastest, because merging the geometries costs more then looking on > boxes - or am i wrong? > > Marco > > -- > +++++++++++++++++++++++++++++++ > > FOSSGIS e.V. > die unabhängige Hilfe bei freier GIS-Software und freien Geodaten > www.fossgis.de > > +++++++++++++++++++++++++++++++++ > > _______________________________________________ > postgis-users mailing list > [email protected] > http://postgis.refractions.net/mailman/listinfo/postgis-users >
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