2009/12/25 Hemant Bist <[email protected]>: > I have a polyline shapefile with each polyline having 200 segements with > each segments length roughly 1 meter. I want to "resample" the polylines to > have roughly 10 meter segment size and each polyline having roughly 20 > segments. I understand this may result in some loss of information. > > > Can postgis help me with some conversion like this. I need this done > somewhat quickly. I have looked at the documentation but did not find > anything relevant. > I have installed postgis on ubuntu and ran some queries. That's my level of > familiarity with postgis. > Would appreciate any pointers.
http://postgis.refractions.net/docs/ST_Simplify.html http://postgis.refractions.net/docs/ST_SimplifyPreserveTopology.html http://bostongis.org/PrinterFriendly.aspx?content_name=postgis_simplify http://old.nabble.com/simplify-a-linestring-to-n-points-td20632406.html > > Best, > HB > > _______________________________________________ > postgis-users mailing list > [email protected] > http://postgis.refractions.net/mailman/listinfo/postgis-users > > -- Brian Modra Land line: +27 23 5411 462 Mobile: +27 79 69 77 082 5 Jan Louw Str, Prince Albert, 6930 Postal: P.O. Box 2, Prince Albert 6930 South Africa http://www.zwartberg.com/ _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
