Michael, ExteriorRing doesn't seem to work. Maybe this is due to the_geom being a multi-polygon? This returns something, but I'm not sure if it is correct. Could anyone tell me?
SELECT distance(transform(GeomFromText( 'POINT(-81.0571731786471 28.0183613937886 )', 4326 ),utmzone(GeomFromText( 'POINT(-81.0571731786471 28.0183613937886 )', 4326 ))), boundary(transform(the_geom,utmzone(GeomFromText( 'POINT(-81.0571731786471 28.0183613937886)', 4326 ))))) FROM "S_FIRM_PAN" where gid = 743; On 7/30/07, Michael Fuhr <[EMAIL PROTECTED]> wrote: > > On Mon, Jul 30, 2007 at 08:43:34PM -0500, Chris Story wrote: > > I am attempting to determine the distance from a point inside a polygon > > to the edge of the polygon. How can I achieve this? > > Have you tried distance(point_geom, exteriorring(poly_geom))? > > -- > Michael Fuhr > _______________________________________________ > postgis-users mailing list > [email protected] > http://postgis.refractions.net/mailman/listinfo/postgis-users > -- Thank you, Chris Story
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