[gdal-dev] GDAL and monster multipolygons

Fri Oct 25 13:52:06 PDT 2019

Hi,

This shapefile from the Inspire dataportal https://geospatial.jrc.ec.europa.eu/geoserver/wad/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=wad%3Alpd_int2&outputFormat=SHAPE-ZIP

contains 226 (multi)polygons, one of them with 516716 ring. It seems that ogr2ogr can't explode the geometries in a reasonable time. Spatialite-gui did the job in 2 min 30 sec with

select elementarygeometries('lpd_int2','GEOMETRY','exploded','id_1','id_2');

Perhaps GDAL could be improved as well.

-Jukka Rahkonen-
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