[postgis-users] [OT] Extract data from within polygons - not in Postgis

[Pedro Doria Meunier]

Hi Chris,

OpenJump (http://openjump.org/) is your friend there... ;-)
Being Java-based it's cross-platform.

HTH
Pedro Doria Meunier


On Wed, 2008-09-10 at 14:05 +0200, chlists at me.com wrote:
> Hi list,
> apologies for an off-topic question, but some of you osgeo wizards  
> might know an answer for my question. I need some help to do some  
> geoprocessing _outside_ PostGIS using available open source tools.
> 
> I have two shapefiles - the first one containing 'master' polygons,  
> the second one can contain random features (lines, polygons or  
> points). I now want to iterate through all polygons of the first  
> shapefile and extract the features from the second file which are  
> located within a given master polygon. The extracted features should  
> also get some a new attribute based on which master polygon they are  
> located in. So essentially it is a  simple iteration over a 'within'  
> query.
> 
> Can this be done without converting the shapefiles to a different  
> format using any of the existing open source tools (ogr2ogr, geos,  
> shapely)? I would prefer to use Python, and if possible, the solution  
> needs to be cross-platform (OS X, Win). If not, what would be the best  
> way to do this, preserving the attributes of the shapefiles?
> 
> Any pointers greatly appreciated.
> 
> TIA,
> Chris
> 
> _______________________________________________
> postgis-users mailing list
> postgis-users at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20080910/a71873d2/attachment.pgp>