> Indeed that's likely what's going on. There is no support whatsoever for unit > interpretation in GeoServer distance filters. > Adding it is possible, but quite a bit of work too > Hmm. so creating that DWITHIN filter requires knowledge of what the layer unit is by the application. It seems odd that coordinate is converted but not the distance. Can I assume that distanceUnit is simply ignored by GS?
I if put in "degree" as the distance unit, it still work fine. HOWEVER I tried to serialize for the GET instead with this string. http://maps.gns.cri.nz/geoserver/wfs?service=WFS&version=1.1.0&srsName=EPSG%3A900913&request=GetFeature&featurePrefix=gns&typeName=MARINE.DSDP_ODP_VIEW&outputFormat=json&cql_filter=DWITHIN(SHAPE,POINT(18671222.484796%20-4944119.0809142),335260,degrees)&format_options=callback%3AOpenLayers.Protocol.Script.getCallback(1) <http://maps.gns.cri.nz/geoserver/wfs?service=WFS&version=1.1.0&srsName=EPSG%3A900913&request=GetFeature&featurePrefix=gns&typeName=MARINE.DSDP_ODP_VIEW&outputFormat=json&cql_filter=DWITHIN%28SHAPE,POINT%2818671222.484796%20-4944119.0809142%29,335260,meters%29&format_options=callback%3AOpenLayers.Protocol.Script.getCallback%281%29> This fails: <ows:ExceptionText> Could not parse CQL filter list. Encountered "degree" at line 1, column 62. Was expecting one of: "feet" ... "meters" ... "statute miles" ... "nautical miles" ... "kilometers" ... . Parsing : DWITHIN(SHAPE,POINT(18671222.484796 -4944119.0809142),335260,degree). Current Token : "," </ows:ExceptionText> - because "degrees" (or for that matter anything like it) is not one the list of units supported according to the error message. Odd that this fails, but the POST version doesnt. If degrees isnt allowed then what distance to use for a EPSG:4326 coverage? Changing to http://maps.gns.cri.nz/geoserver/wfs?service=WFS&version=1.1.0&srsName=EPSG%3A900913&request=GetFeature&featurePrefix=gns&typeName=MARINE.DSDP_ODP_VIEW&outputFormat=json&cql_filter=DWITHIN(SHAPE,POINT(18671222.484796%20-4944119.0809142),335260,meters)&format_options=callback%3AOpenLayers.Protocol.Script.getCallback(1) <http://maps.gns.cri.nz/geoserver/wfs?service=WFS&version=1.1.0&srsName=EPSG%3A900913&request=GetFeature&featurePrefix=gns&typeName=MARINE.DSDP_ODP_VIEW&outputFormat=json&cql_filter=DWITHIN%28SHAPE,POINT%2818671222.484796%20-4944119.0809142%29,335260,meters%29&format_options=callback%3AOpenLayers.Protocol.Script.getCallback%281%29> however returns an empty feature set. No matter how big distance unit is, I get nothing unless I remove the cql_filter completely. Is there another way to serialise a filter for GET that works better? -- Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St, Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232 Notice: This email and any attachments are confidential. If received in error please destroy and immediately notify us. Do not copy or disclose the contents.
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