[mapserver-users] Problem with Russia polygon
andy at squeakycode.net
Sat Jan 2 09:50:13 EST 2010
On 12/30/2009 11:14 AM, Nelson Correia wrote:
> I’m using shapefile world data from gadm.org (I’ve had this same problem
> with other data sources too) and I’m having a problem with the Russian
> polygon: mapserver draws some strange lines parallel to the equator,
> near the north pole (like you can see in the attached image).
> Anyone had the same problem and knows how to solve it?
I have no idea if this is the same problem, but I have run into weird drawing problems before. I import shape files into PostGIS and then use mapserver on that. I got a polygon layer that had an unclosed line (I guess that is a good way to describe it). It pissed off mapserver. I could run sql like:
select gid from layer where not ST_IsClosed(the_geom)
and it would pull it up. The people that sent me the layer swore there was nothing wrong with it (they didn't see any error).
I guess to make a long story short, do you have any editors (like qgis) that you can use to see/edit the layer and make sure each record is valid?
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