unusual response from mapserver when making WFS request with
filter encoding on a layer that uses a tile index
Urvashi Gadi
urvashig at GMAIL.COM
Wed Jul 11 13:38:35 EDT 2007
Hi,
I'm getting an unusual response from mapserver when I make a WFS request
with filter
encoding on a layer that uses a tile index; it returns a box with -1 as all
corners. Is
there anything that can be done to make this work, or is this a know
limitation of
mapserver?
WFS works on the layer with the tile index as long as I don't use any FE.
WFS with FE
works on a test layer that references one of the shapefiles directly instead
of the tile
index. Below is some information about what I'm trying and my environment:
Sample WFS Requests with FE:
http://wilson.library.emory.edu/~mapserver/cgi-bin/south?SERVICE=WFS&VERSION=1.0.0&REQUEST=getfeature&TYPENAME=Urban_Areas&Filter=<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwilson.library.emory.edu%2F%7Emapserver%2Fcgi-bin%2Fsouth%3FSERVICE%3DWFS%26VERSION%3D1.0.0%26REQUEST%3Dgetfeature%26TYPENAME%3DUrban_Areas%26Filter%3D>
<Filter><PropertyIsEqualTo><PropertyName>NAME</PropertyName><Literal>Arcola</Literal></PropertyIsEqualTo></Filter>
http://wilson.library.emory.edu/~mapserver/cgi-bin/south?SERVICE=WFS&VERSION=1.0.0&REQUEST=getfeature&TYPENAME=Urban_Areas&Filter=<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwilson.library.emory.edu%2F%7Emapserver%2Fcgi-bin%2Fsouth%3FSERVICE%3DWFS%26VERSION%3D1.0.0%26REQUEST%3Dgetfeature%26TYPENAME%3DUrban_Areas%26Filter%3D>
<Filter><PropertyIsEqualTo><PropertyName>PLACE</PropertyName><Literal>01820</Literal></PropertyIsEqualTo></Filter>
The response:
<?xml version='1.0' encoding="ISO-8859-1" ?>
<wfs:FeatureCollection
xmlns:ms="http://mapserver.gis.umn.edu/mapserver<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fmapserver.gis.umn.edu%2Fmapserver>
"
xmlns:wfs="http://www.opengis.net/wfs<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.opengis.net%2Fwfs>
"
xmlns:gml="http://www.opengis.net/gml<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.opengis.net%2Fgml>
"
xmlns:ogc="http://www.opengis.net/ogc<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.opengis.net%2Fogc>
"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema-instance>
"
xsi:schemaLocation="http://www.opengis.net/wfs<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.opengis.net%2Fwfs>
http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fschemas.opengis.net%2Fwfs%2F1.0.0%2FWFS-basic.xsd>
http://mapserver.gis.umn.edu/mapserver<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fmapserver.gis.umn.edu%2Fmapserver>
http://wilson.library.emory.edu/~mapserver/cgi-bin/south?SERVICE=WFS&VERSION=1.0.0&REQUEST=DescribeFeatureType&TYPENAME=Urban_Areas&OUTPUTFORMAT=XMLSCHEMA<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwilson.library.emory.edu%2F%7Emapserver%2Fcgi-bin%2Fsouth%3FSERVICE%3DWFS%26VERSION%3D1.0.0%26REQUEST%3DDescribeFeatureType%26TYPENAME%3DUrban_Areas%26OUTPUTFORMAT%3DXMLSCHEMA>
">
<gml:boundedBy>
<gml:Box srsName="EPSG:4326">
<gml:coordinates>-1.000000,-1.000000 -1.000000,-
1.000000</gml:coordinates>
</gml:Box>
</gml:boundedBy>
</wfs:FeatureCollection>
Sample WFS Request without FE:
http://wilson.library.emory.edu/~mapserver/cgi-bin/south?SERVICE=WFS&VERSION=1.0.0&REQUEST=getfeature&TYPENAME=Urban_Areas&MAXFEATURES=1<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwilson.library.emory.edu%2F%7Emapserver%2Fcgi-bin%2Fsouth%3FSERVICE%3DWFS%26VERSION%3D1.0.0%26REQUEST%3Dgetfeature%26TYPENAME%3DUrban_Areas%26MAXFEATURES%3D1>
The response:
<?xml version='1.0' encoding="ISO-8859-1" ?>
<wfs:FeatureCollection
xmlns:ms="http://mapserver.gis.umn.edu/mapserver<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fmapserver.gis.umn.edu%2Fmapserver>
"
xmlns:wfs="http://www.opengis.net/wfs<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.opengis.net%2Fwfs>
"
xmlns:gml="http://www.opengis.net/gml<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.opengis.net%2Fgml>
"
xmlns:ogc="http://www.opengis.net/ogc<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.opengis.net%2Fogc>
"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema-instance>
"
xsi:schemaLocation="http://www.opengis.net/wfs<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwww.opengis.net%2Fwfs>
http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fschemas.opengis.net%2Fwfs%2F1.0.0%2FWFS-basic.xsd>
http://mapserver.gis.umn.edu/mapserver<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fmapserver.gis.umn.edu%2Fmapserver>
http://wilson.library.emory.edu/~mapserver/cgi-bin/south?SERVICE=WFS&VERSION=1.0.0&REQUEST=DescribeFeatureType&TYPENAME=Urban_Areas&OUTPUTFORMAT=XMLSCHEMA<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwilson.library.emory.edu%2F%7Emapserver%2Fcgi-bin%2Fsouth%3FSERVICE%3DWFS%26VERSION%3D1.0.0%26REQUEST%3DDescribeFeatureType%26TYPENAME%3DUrban_Areas%26OUTPUTFORMAT%3DXMLSCHEMA>
">
<gml:boundedBy>
<gml:Box srsName="EPSG:4326">
<gml:coordinates>-91.429176,24.844480 -75.562841,
36.641761</gml:coordinates>
</gml:Box>
</gml:boundedBy>
<gml:featureMember>
<ms:Urban_Areas fid="Arcola">
<gml:boundedBy>
<gml:Box srsName="EPSG:4326">
<gml:coordinates>-90.885096,33.266165 -90.875910,
33.274779</gml:coordinates>
</gml:Box>
</gml:boundedBy>
<ms:msGeometry>
<gml:Polygon srsName="EPSG:4326">
<gml:outerBoundaryIs>
<gml:LinearRing>
<gml:coordinates>-90.884500,33.269424 -90.885040,33.269421
-90.885082,33.272127 -90.885096,33.273023 -90.883338,33.273026 -90.879469,
33.273030
-90.879464,33.273206 -90.879413,33.274749 -90.876712,33.274772 -90.875930,
33.274779
-90.875910,33.272084 -90.876238,33.270229 -90.876375,33.269817 -90.876403,
33.269665
-90.876649,33.268329 -90.877004,33.266749 -90.877707,33.266755 -90.880544,
33.266781
-90.880502,33.266688 -90.880420,33.266507 -90.881163,33.266376 -90.882357,
33.266165
-90.882984,33.267974 -90.883487,33.269427 -90.883781,33.269426 -90.884500,
33.269424
</gml:coordinates>
</gml:LinearRing>
</gml:outerBoundaryIs>
</gml:Polygon>
</ms:msGeometry>
<ms:GIST_ID>1</ms:GIST_ID>
<ms:COUNTY>28151</ms:COUNTY>
<ms:PLACE>01820</ms:PLACE>
<ms:NAME>Arcola</ms:NAME>
<ms:LSADC>60</ms:LSADC>
<ms:ENTITY>P</ms:ENTITY>
<ms:FIPSCC>C1</ms:FIPSCC>
<ms:PLACEDC>0</ms:PLACEDC>
</ms:Urban_Areas>
</gml:featureMember>
</wfs:FeatureCollection>
GetCapabilities report for the layer:
<FeatureType>
<Name>Urban_Areas</Name>
<Title>Urban Areas</Title>
<SRS>EPSG:4326</SRS>
<LatLongBoundingBox minx="-91.4292" miny="0" maxx="0" maxy="36.6418"
/>
</FeatureType>
Excerpts from the mapfile:
WEB
METADATA
'wms_title' 'SouthComb WMS Server'
'wms_onlineresource' '
http://wilson.library.emory.edu/~mapserver/cgi-bin/south?<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwilson.library.emory.edu%2F%7Emapserver%2Fcgi-bin%2Fsouth%3F>
'
'wms_srs' 'EPSG:4326'
'wfs_title' 'SouthComb WFS Server'
'wfs_onlineresource' '
http://wilson.library.emory.edu/~mapserver/cgi-bin/south?<https://webmail.service.emory.edu/horde/services/go.php?url=http%3A%2F%2Fwilson.library.emory.edu%2F%7Emapserver%2Fcgi-bin%2Fsouth%3F>
'
'wfs_srs' 'EPSG:4326'
END
END
LAYER
NAME 'Urban_Areas'
TYPE POLYGON
TILEINDEX 'placecu.shp'
TILEITEM 'location'
DUMP TRUE # allow GML export
METADATA
'wms_title' 'Urban Areas'
'wfs_title' 'Urban Areas'
'gml_featureid' 'name'
'gml_include_items' 'all'
END
STATUS OFF
LABELCACHE ON
LABELITEM 'NAME'
PROJECTION
'init=epsg:4326'
END
CLASS
NAME placecu MAXSCALE
1000000
STYLE
SYMBOL 0
SIZE 6 OUTLINECOLOR 106 46 34
COLOR 248 241 223
END
LABEL
TYPE TRUETYPE
FONT sans
SIZE 14
COLOR 0 0 0
END
END
END
Attributes reported by ogrinfo for one of the shapfiles that the tile index
file
placecu.shp references:
GIST_ID: Integer (8.0)
COUNTY: String (5.0)
PLACE: String (5.0)
NAME: String (60.0)
LSADC: String (2.0)
ENTITY: String (1.0)
FIPSCC: String (2.0)
PLACEDC: String (1.0)
Thanks,
Urvashi Gadi
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