On mercredi 13 septembre 2017 10:39:50 CEST Ari Jolma wrote: > Hi, > > I'm trying to get OpenLayers (v4.3.2) understand GML made by GDAL (in > the context of a WFS). GDAL has a lot of creation options for GML and > the best results I've got with TARGET_NAMESPACE = > http://ogr.maptools.org/, PREFIX = ogr, and FORMAT = GML2. That has > worked with earlier (v2) OpenLayers but with v4 the features are > understood but not their geometries. This may not be the full issue but > if I produce the geometries the way geoserver seems to do, I get OL to > understand them. > > Geometry produced by GDAL as GML2, not working with new OL: > > <ogr:geometryProperty> > <gml:Polygon srsName="EPSG:3857"> > <gml:outerBoundaryIs> > <gml:LinearRing> > <gml:coordinates>2423495.53212975,9236910.2942792 > 2487091.13966301,9293167.94709709 2491983.10947327,9276046.05276121 > 2440617.42646563,9212450.44522794 > 2423495.53212975,9236910.2942792</gml:coordinates> > </gml:LinearRing> > </gml:outerBoundaryIs> > </gml:Polygon> > </ogr:geometryProperty> > > Geometry that works with new OL: > > <ogr:geometry> > <gml:Polygon srsName="http://www.opengis.net/gml/srs/epsg.xml#3857"; > srsDimension="2"> > <gml:exterior>
--> gml:exterior isn't GML2, but GML3. Perhaps you should try FORMAT=GML3 instead then. > <gml:LinearRing> > <gml:posList>2423495.53212975 9236910.2942792 2487091.13966301 > 9293167.94709709 2491983.10947327 9276046.05276121 2440617.42646563 > 9212450.44522794 2423495.53212975 9236910.2942792</gml:posList> > </gml:LinearRing> > </gml:exterior> > </gml:Polygon> > </ogr:geometry> > > I'm using ol.format.WFS to parse the GML. If I give it a constructor > option gmlFormat:ol.format.GML2, the parsing causes an error because > ol.format.GML2 does not have a feature collection parser. > > Ari > > > _______________________________________________ > gdal-dev mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/gdal-dev -- Spatialys - Geospatial professional services http://www.spatialys.com
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