[postgis-users] Merge all polygons from a dataset

Pedro Doria Meunier pdoria at netmadeira.com
Fri Aug 1 03:37:33 PDT 2008

Hi Erik,

(PostGIS 'listers' please forgive me)

I know this is a bit off-topic but have you tried OpenJump?

You have easy-going multiple polygons merging... ;-)

As to what Erik asked, I'd also like to know as I've never tried that
too ... :)

Pedro Doria Meunier

On Fri, 2008-08-01 at 12:12 +0200, danny wrote:
> Hello everybody,
> I've converted a shapefile of Europe to PostGIS. I would like to merge
> all the countries together so that I only have one polygon left, the
> whole contour of Europe. I have tried ST_Union that gives me no
> result. I've tried several other functions to no avail. Does anybody
> know how I should proceed?
> Many thanks,
> Erik
> _______________________________________________
> postgis-users mailing list
> postgis-users at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20080801/ba8ffb5c/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: stock_smiley-1.png
Type: image/png
Size: 873 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20080801/ba8ffb5c/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: stock_smiley-3.png
Type: image/png
Size: 876 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20080801/ba8ffb5c/attachment-0001.png>

More information about the postgis-users mailing list