[Gdal-dev] Building multipolygons from single polygons with OGR?

[Ethan Alpert]

Thanks Frank! That did the trick!
 
-e

________________________________

From: fwarmerdam at gmail.com on behalf of Frank Warmerdam
Sent: Tue 12/13/2005 8:52 PM
To: Ethan Alpert
Cc: gdal-dev at lists.maptools.org
Subject: Re: [Gdal-dev] Building multipolygons from single polygons with OGR?



On 12/13/05, Ethan Alpert <ealpert at digitalglobe.com> wrote:
> I have a query that returns single polygon geometries and I'd like to loop
> through the features and create a single multipolygon from the result set.
> How is this done with the OGR API?

Ethan,

You could need to create a multipolygon object, and then
call addGeometry() for each polygon.  You can pass in
the original polygons, as the method will clone them internally.

Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent


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