Bart,

Thanks for your quick response!

The table had only the normal ArcSDE applied OBJECTID unique index and no separate user primary key, although other layers that work correctly have the same setup.

I've tried adding a separate user PK on another column but it doesn't help the problem.

One further interesting (and confusing) fact is that out of the 200 or so features in this layer, a small number return the correct value when clicked. Seems to be no pattern (spatial or attribute-wise) as to which features work correctly - maybe its just co-incidence, I guess even randomly some will be correct!?

At 10:09 PM 22/11/2005, you wrote:
With respect to your first problem (results are totally off), does your table have a primary key?

Best regards,
Bart

Bart van den Eijnden
Syncera IT Solutions
Postbus 270
2600 AG  DELFT

tel.nr.: 015-7512436
email: [EMAIL PROTECTED]

>>> Ian Miller <[EMAIL PROTECTED]> 11/22/2005 11:55:55 AM >>>
I have a mapserver map file with many ArcSDE layers defined in it and am
calling this via a WMS client.  For many layers (point and polygon), the
GetFeatureInfo request works correctly, returning a GML string with the one
or many results.

For a number of layers however, both point and polygon, I am getting one of
two different errors.  In some cases, the feature(s) returned are nowhere
near the point clicked, even though the BBOX coordinates included in the
request are correct.  eg for the request:

http://203.21.120.26/cgi-bin/mapserv?
map=amsis.map&VERSION=1.0.0&SERVICE=WFS&REQUEST=GetFeature&MAXFEATURES=100&O
UTPUTFORMAT=GML2&TYPENAME=PETROLEUMWELLS&BBOX=119.7781007751938,-
17.236434108527135,119.88791989664084,-17.126614987080103

the return is:

<?xml version='1.0' encoding="ISO-8859-1" ?><wfs:FeatureCollection
xmlns:myns="http://www.ttt.org/myns";
xmlns:wfs="http://www.opengis.net/wfs";
xmlns:gml="http://www.opengis.net/gml";
xmlns:ogc="http://www.opengis.net/ogc";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="<http://www.opengis.net/wfs>http://www.opengis.net/wfs
http://schemas.opengeospatial.net/wfs/1.0.0/WFS-
basic.xsd                        http://www.ttt.org/myns
http://203.21.120.26/cgi-bin/mapserv?
map=amsis.map&amp;SERVICE=WFS&amp;VERSION=1.0.0&amp;REQUEST=DescribeFeatureT
ype&amp;TYPENAME=PETROLEUMWELLS&amp;OUTPUTFORMAT=XMLSCHEMA">
<gml:boundedBy>       <gml:Box srsName="EPSG:4326">
 <gml:coordinates>119.822556,-17.166944 119.822556,-
17.166944</gml:coordinates>       </gml:Box>      </gml:boundedBy>
<gml:featureMember>      <myns:PETROLEUMWELLS>
<gml:boundedBy>         <gml:Box srsName="EPSG:4326">
 <gml:coordinates>144.671667,-8.282500 144.671667,-
8.282500</gml:coordinates>         </gml:Box>
</gml:boundedBy>        <myns:msGeometry>        <gml:Point
srsName="EPSG:4326">          <gml:coordinates>144.671667,-
8.282500</gml:coordinates>        </gml:Point>
</myns:msGeometry>        <myns:OBJECTID>595</myns:OBJECTID>
<myns:FEATURETYPE>Petroleum Well</myns:FEATURETYPE>
<myns:ENO>10567</myns:ENO>        <myns:WELL>Dibiri  1A</myns:WELL>
<myns:TOTALDEPTH>4895</myns:TOTALDEPTH>
<myns:STATUS>Dry</myns:STATUS>        <myns:OPERATOR>Phillips Aust Oil
Co</myns:OPERATOR>        <myns:CONTRACTOR></myns:CONTRACTOR>
<myns:TITLE></myns:TITLE>        <myns:SHORE></myns:SHORE>
<myns:FIELD></myns:FIELD>        <myns:WELLTYPE></myns:WELLTYPE>
<myns:ELEVATION>&amp;lt;null&amp;gt;</myns:ELEVATION>
<myns:SOURCE>Geoscience Australia</myns:SOURCE>
<myns:SCALE>10000000</myns:SCALE>
<myns:ACCURACYESTIMATE>0</myns:ACCURACYESTIMATE>
<myns:DATACURRENCY>00:00:00 05/25/2005</myns:DATACURRENCY>
<myns:UPDATEFREQUENCY>5</myns:UPDATEFREQUENCY>
<myns:CREATIONDATE>&amp;lt;null&amp;gt;</myns:CREATIONDATE>
<myns:RETIREMENTDATE>&amp;lt;null&amp;gt;</myns:RETIREMENTDATE>
<myns:PID>&amp;lt;null&amp;gt;</myns:PID>
<myns:SYMBOL>0</myns:SYMBOL>
<myns:SHAPE>&amp;lt;shape&amp;gt;</myns:SHAPE>
<myns:SE_ROW_ID>561</myns:SE_ROW_ID>      </myns:PETROLEUMWELLS>
</gml:featureMember></wfs:FeatureCollection>

You can see the gml:boundedBy box coordinates match the request BBOX
coordinates but the returned feature is in a totally different place.  If I
query this ArcSDE layer from a client like ArcMap it works correctly.  Note
that if I export the ArcSDE layer to a shapefile and use that with
mapserver, the result is also correct.

Possibly related, some polygon layers also fail, although the symptoms are
different.  In that case I get a truncated return GML string such as:

<?xml version="1.0" encoding="ISO-8859-1"?><msGMLOutput
xmlns:gml="http://www.opengis.net/gml";
xmlns:xlink="http://www.w3.org/1999/xlink";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
 <PETROLEUMACREAGERELEASE_layer>

which would appear to indicate that the process terminated abnormally mid
request but if I use a debug-enabled version of mapserver I don't see any
error message.  Again, exported to shapefiles the request works correctly.

Note that in both cases if I use a WFS GETFEATURE in place of the WMS
GetFeatureInfo I get similar errors.

Can anyone help?


Regards

Ian Miller
SPATIAL VISION
Phone: +61 3 9691 3034
Fax: +61 3 9691 3001
Mobile: 0419 185 470
E-mail: [EMAIL PROTECTED]

For the latest news visit http://www.spatialvision.com.au/

This e-mail is privileged and confidential and intended only for
the addressee(s). If received in error please delete and advise
Spatial Vision by return e-mail.

Reply via email to