[postgis-users] creating a grid; transform error

[Puneet Kishor]

I am trying to create a simple 1 deg x 1 deg grid and transform it to spherical 
mercator

        SELECT ST_Transform(ST_MakeEnvelope(minx, miny, maxx, maxy, 4326), 
900913) the_geom
        FROM (
                SELECT lng minx, lat miny, (lng + 1) maxx, (lat + 1) maxy
                FROM (
                        SELECT Generate_series(-180, 180, 1) lng, 
Generate_series(-90, 90, 1) lat
                ) series 
                WHERE (lng + 1) < 181 AND (lat + 1) < 91
        ) lat_lng


I get

        ERROR: transform: couldn't project point (-180 -90 0): tolerance 
condition error (-20)



What am I doing wrong?


--
Puneet Kishor
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