[postgis-users] Polygon area in meters
ibrahimsaricicek at gmail.com
Tue Feb 9 05:46:39 PST 2010
ST_Distance_Spheroid(point_x, point_y, 'SPHEROID["WGS
the other method create a new geometry (the_geom_epsg) column ansd find the
exaxt EPSG code for your region (i prefer 2321 for middle Turkiye ED50 /TM
update table set the_geom_epsg=st_transform(the_geom, epsg)
then use st_area..
On Tue, Feb 9, 2010 at 3:40 PM, Kemal Bayram <kemal at cins.co.uk> wrote:
> I'm current working with data in long/lat (wgs84) format and using
> st_distance_spheroid to calculate the length of my linestrings in meters. I
> now need to calculate the area of my polygons and am wondering what the
> easiest way of doing this would be?
> I am thinking projecting the polygon with an equal area projection and then
> using st_area on the result. Anyone have any ideas on suitable
> postgis-users mailing list
> postgis-users at postgis.refractions.net
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