Drawing collected multipolygons from PostGIS...
john.cole at UAI.COM
Wed May 16 13:27:42 EDT 2007
I'm trying to "pretty" up a polygon layer (specifically tiger placecu).
I'd like to draw an outline of a collection of multipolygon objects, but it
doesn't seem to be working.
Here is my data statement in my mapfile:
DATA "the_geom from (SELECT min(gid) as gid, collect(the_geom) as the_geom
WHERE (gid = any (string_to_array('%PLCGID%', '^')))
and (the_geom && setSRID(!BOX!, 4326)) group by name) foo USING SRID=4326,
USING UNIQUE gid"
If I remove the min/collect the layer draws fine, but I was hoping to get
the exterior ring of the combined polygons and draw that. Has anyone done
something similar? I'd love an example.
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