[gdal-dev] Re: Multipart to singlepart

[iomeneandrei]

Dear Frank,

Frank Warmerdam wrote:
> 
> I tried it with a trunk build and the multipolygon is converted to a
> polygon.
> I suspect the feature of the forcing support is new and if you want it you
> would need a reasonably recent development build - more recent than
> FWTools.
> 

I have downloaded GDAL 1.7.3 from here http://vbkto.dyndns.org/sdk/, and I
have made a test. The output file now does not contain ever MultiPolygon,
but it has only Polygon. And I have made this test using two output formats:
SQLite and GML. This is a GML output:
https://gist.github.com/732281

But I have a question for you: is it a real multpart to singlepart
transformation? The output file is without any MultiPolygon, but the two
polygons that constitute the former MultiPolygon remain in some way
geometrically related. I was thinking of getting two separate polygons, but
if I will select one of them in a desktop GIS, also the other one is
selected.
Probably it's correct, but it's not what I want.

It's really a pleasure to "talk" with you.

Thank you,

Andrea

-----
Andrea Borruso

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