Oh - I reported the issue to the Natural Earth people - https://github.com/nvkelso/natural-earth-vector/issues/343
On Tue, May 12, 2020 at 5:11 PM David Blasby <david.bla...@geocat.net> wrote: > Hi, > > I was trying to use the Natural Earth GeoPackage (countries) - link below. > > However, I found the rendering was very "wrong"; > [image: image.png] > This triangle is actually 3 small islands - it's represented in the > GeoPackage as a Multipolygon (one polygon for each island). > > This works fine in QGIS. > > Looking at the gpkg_geometry_column tables; > [image: image.png] > > We can see it's marked as "Polygon" (not multipolygon). > > During reading, we get to these lines; > > > https://github.com/geotools/geotools/blob/master/modules/library/jdbc/src/main/java/org/geotools/jdbc/JDBCFeatureReader.java#L409 > [image: image.png] > > Here, value is a Multipolygon, but the binding is a Polygon. The > multipolygon is converted to a polygon, leading to the issues above. > > I'm not sure what should happen here? > > We could just throw an exception? Dont do the conversion? We could also > (similar to shapefiles) have polygon (and line/point) geopkgs always > represented as the corresponding multi*. However, that's a bit > aggressive... > > Doesn't seem to be a good solution here... > > Ideas? > > > (note - this is 250mb) > http://naciscdn.org/naturalearth/packages/natural_earth_vector.gpkg.zip > > Thanks, > David >
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