Thanks Steve. Yes, ows_geomtype=Geometry does the trick! You're right -- it seems with layer TYPE=polygon, the OGR output is coerced to a Polygon rather than MultiPolygon for this case: https://github.com/mapserver/mapserver/blob/2c1e5c50791cac205cfbeed0e1fa98bb421f5c5c/mapogroutput.c#L908-L923
My mental model was that the METADATA block only gave hints to what should be reported in GetCapabilities requests. Thanks again, Pete On Mon, Jan 8, 2018 at 12:07 PM, Lime, Steve D (MNIT) < [email protected]> wrote: > Hi Peter: Adding the following metadata to the layer returns a > multipolygon for me: > > > > METADATA > > "ows_geomtype" "Geometry" > > END > > > > Without specific direction on geometry type it may be that MapServer is > capitalizing on the layer type or something like that. > > > > Steve > > > > *From:* mapserver-users [mailto:[email protected]] *On > Behalf Of *Peter Schmitt > *Sent:* Friday, January 05, 2018 12:09 PM > *To:* [email protected] > *Subject:* [mapserver-users] MultiPolygon layer requested as GeoJSON is > returned as Polygon > > > > Hi, > > > > I have a layer with one MultiPolygon feature. I issue a request for the > layer as GeoJSON, like so: > > > > curl "http://localhost/mapserv?MAP=/usr/src/mapfiles/busted.map&; > service=WFS&VERSION=1.1.0&REQUEST=getfeature&typename= > should_be_multi&OUTPUTFORMAT=geojson" > > > > In response, I get a single feature, but it has been converted to a > Polygon. > > > > { > > "type": "FeatureCollection", "name": "should_be_multi", "features": [ > > { "type": "Feature", "properties": { }, "geometry": { "type": > "Polygon", "coordinates": ... } } > > ] > > } > > > > The returned polygon has interior rings, one of which should actually be a > separate polygon with its own interior rings. I think this is wrong and > the geometry type returned by MapServer should be MultiPolygon. Can anyone > help me understand what is going on? > > > > Here's the feature as a MultiPolygon I expected to receive: > > http://bl.ocks.org/d/640884687326af5d123a5fc761884e3d > > http://bl.ocks.org/d/640884687326af5d123a5fc761884e3d/map.geojson > > > > Here's my MAP file: > > https://gist.github.com/pedros007/f685d8d336c77aff4cc56673b85f6672 > > > > Thanks, > > Pete > -- Pete
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