Hi, I have placed a small amount of postgis code online for generating linestring grids, clipping polygons by linestrings and linearly interpolating linestrings (e.g., you have a linestring that represents positions at a set of times that you want to interpolate so that the intervals between positions is uniform).
http://www.crh-eme.ird.fr/team/dkaplan/notes/postgis/index.html The code is in pure SQL and PL/PGSQL, so it should be usable by most. There is definitely lots of room for improvement and I haven't been following postgis 2.0 particularly closely, so perhaps some of this functionality exists already. But it still seems like a useful bit of code. Comments and improvements welcome. Cheers, David -- ********************************** David M. Kaplan Charge de Recherche 1 Institut de Recherche pour le Developpement UMR 212 Ecosystemes Marins Exploites av. Jean Monnet B.P. 171 34203 Sete cedex France Phone: +33 (0)4 99 57 32 27 Fax: +33 (0)4 99 57 32 95 http://www.umr-eme.org/team/dkaplan/ http://www.amped.ird.fr/ ********************************** _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
