Is there any other function equivalent to the line_interpolate_point(the_geom, 0.5) to find the midpoint of a MULTILINESTRING?
the line_interpolate_point works only with LINESTRINGS. - Pradeep B V www.btis.in On 6/21/07, Rodrigo Martín LÓPEZ GREGORIO < [EMAIL PROTECTED]> wrote:
Hi Matt. I think what you want may be: line_interpolate_point(the_geom,0.5) (or ST_line_interpolate_point(the_geom,0.5) depending on your Postgis version) where the_geom is a linestring and 0.5 means half of the total 2d length of the linestring. You can reed more details in the documentation: http://postgis.refractions.net/docs/ch06.html#line_interpolate_point Rodrigo On 6/21/07, Matt Doughty < [EMAIL PROTECTED]> wrote: > > Hi List, > > > > Is there a function in PostGIS that finds the midpoint of a line? > > > > Matt > > > > > > > > Matt Doughty > > GEOGRAM A S.L. > > Tel.: +34 945 13 13 72 652 77 14 15 > > Fax: +34 945 23 03 40 > > www.geograma.com > > > > > > _______________________________________________ > postgis-users mailing list > [email protected] > http://postgis.refractions.net/mailman/listinfo/postgis-users > > _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
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