Hi Ani, Have you looked into st_intersects() ? and st_intersection() ?
http://postgis.refractions.net/docs/ST_Intersects.html James On 22 November 2013 16:17, Ani Alamo <alamo....@gmail.com> wrote: > Hi! > I need a specific function to get if two linestring overlaps. e.g. > Linestring 1 is Point (0, 0) : Point (10, 0) Linestring 2 is Point (0, 0) : > Point (3, 0) > > In this case I need "true" result because LineString 1 overlaps in different > points like 0,0 1,0 2,0 & 3,0. I dont need the common points, I only need if > two linestring overlaps or not. I tried with this function in postgis... > > overlaps(buffer(LINESTRING1, 0.001), buffer(LINESTRING2, 0.001)) > I create a buffer on both linestrings... but muy problem is some times works > better, some times not. > > Can you help me please? > > Thanks! > > _______________________________________________ > postgis-users mailing list > postgis-users@lists.osgeo.org > http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users _______________________________________________ postgis-users mailing list postgis-users@lists.osgeo.org http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users