On 10-12-07 02:48 PM, iomeneandrei wrote:
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
Andrea, Good.
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.
I'm afraid it is just pushing all the rings into one polygon feature which is in truth not a valid simple feature polygon geometry. If you want multipolygons split into multiple features - a reasonable wish - you will need another mechanism. You could do this in your own script or program but I am not aware of mechanism to do this with ogr2ogr or other existing OGR utilities. It might be nice to have a -explode-collections option for ogr2ogr what would produce one feature for each geometry in any kind of geometry collection in the source file. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
