Merging Regions of a shapefile

Brock Anderson banders at REFRACTIONS.NET
Mon Jan 16 11:05:07 PST 2006


Neil,

I tend to use Postgres/PostGIS for this kind of processing.

For example:

Load the data into postgres like this:

    shp2pgsql <loader options here> england.shp england_table | psql

Then dump it out again into several shapefiles. Use an SQL statement to 
select the regions to include in each file:

    pgsql2shp <dumper options here> england_table "select * where ..."
    pgsql2shp <dumper options here> england_table "select * where ..."
    pgsql2shp <dumper options here> england_table "select * where ..."

Brock

Neil Saunders wrote:

>Hi Folks,
>
>I've got a map of England as a shapefile, containing regions for each
>county. What I'd like to do is merge selected regions in to a larger
>region (E.g Devon, Somerset, Cornwall etc into "Westcountry").
>
>Does any one know a simple (Preferably GUI based) way of achieving this?
>
>Thanks in advance,
>
>Neil.
>  
>



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