[mapserver-users] WFS Intersect with gml:box
Joaquín Rodriguez-Guerra Urcelay
jrguerra at gmv.com
Wed Mar 30 14:30:18 EDT 2011
Hello,
I was finally able to build the source code, and I am not getting the error anymore :D (with Latest Release Branch, with trunk wfs was not working for me)
But I am not getting the result I was expecting. Maybe I am wrong, but I thought that bbox operation would return all geometries contained in the box, and intersect would return all geometries contained in the box and also those who are not contained completely, but a part of them. Is this right??
In the following example I have a point in (10,10), and bbox filter in (-11,-11, -9,-9) returns the point :)
http://localhost:8080/cgi-bin/mywfs?WIDTH=512&SERVICE=WFS&VERSION=1.0.0&request=getfeature&typename=PositionReal&Filter=
<Filter xmlns="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml"><BBOX><PropertyName>point</PropertyName>
<gml:Box srsName="WGS84(DD)"><gml:coordinates decimal="." cs="," ts=" ">-11,-11 -9,-9</gml:coordinates>
</gml:Box>
</BBOX>
</Filter>
<?xml version='1.0' encoding="ISO-8859-1" ?>
<wfs:FeatureCollection
xmlns:ms="http://mapserver.gis.umn.edu/mapserver"
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://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd
http://mapserver.gis.umn.edu/mapserver http://localhost:8080/cgi-bin/mywfs?SERVICE=WFS&VERSION=1.0.0&REQUEST=DescribeFeatureType&TYPENAME=PositionReal&OUTPUTFORMAT=XMLSCHEMA">
<gml:boundedBy>
<gml:Box srsName="EPSG:4326">
<gml:coordinates>-10.000000,-10.000000 -10.000000,-10.000000</gml:coordinates>
</gml:Box>
</gml:boundedBy>
<gml:featureMember>
<ms:PositionReal fid="PositionReal.1">
<gml:boundedBy>
<gml:Box srsName="EPSG:4326">
<gml:coordinates>-10.000000,-10.000000 -10.000000,-10.000000</gml:coordinates>
</gml:Box>
</gml:boundedBy>
<ms:msGeometry>
<gml:Point srsName="EPSG:4326">
<gml:coordinates>-10.000000,-10.000000</gml:coordinates>
</gml:Point>
</ms:msGeometry>
<ms:id>1</ms:id>
</ms:PositionReal>
</gml:featureMember>
</wfs:FeatureCollection>
If I try the same query using intersect operation, I would expect the same result, but I obtain none
http://localhost:8080/cgi-bin/mywfs?WIDTH=512&SERVICE=WFS&VERSION=1.0.0&request=getfeature&typename=PositionReal&Filter=
<Filter xmlns="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml"><Intersects><PropertyName>point</PropertyName>
<gml:Box srsName="WGS84(DD)"><gml:coordinates decimal="." cs="," ts=" ">-11,-11 -9,-9</gml:coordinates>
</gml:Box>
</Intersects>
</Filter>
<?xml version='1.0' encoding="ISO-8859-1" ?>
<wfs:FeatureCollection
xmlns:ms="http://mapserver.gis.umn.edu/mapserver"
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://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd
http://mapserver.gis.umn.edu/mapserver http://localhost:8080/cgi-bin/mywfs?SERVICE=WFS&VERSION=1.0.0&REQUEST=DescribeFeatureType&TYPENAME=PositionReal&OUTPUTFORMAT=XMLSCHEMA">
<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>
Forgive me if the results are right, and I just did not understand the operators, I am kind of new
Thank you for your help!!
PD: It is a shame FGS self-extract installer may not be available anymore, it was fantastic!
Joaquín
________________________________________
De: mapserver-users-bounces at lists.osgeo.org [mapserver-users-bounces at lists.osgeo.org] En nombre de Daniel Morissette [dmorissette at mapgears.com]
Enviado el: miércoles, 30 de marzo de 2011 19:57
Para: mapserver-users at lists.osgeo.org
Asunto: Re: [mapserver-users] WFS Intersect with gml:box
On 11-03-30 01:44 PM, Yewondwossen Assefa wrote:
>>
> I can not say one way or the other about fgs installer. You can ask on
> the fgs mailing list or someone cam comment here.
>
Unfortunately FGS has fallen down the list of priorities in the last
year or so. One of the reasons is that we put more efforts in native
packages (e.g. UbuntuGIS, DebianGIS, etc.) and also the fact that we no
longer have clients using it and supporting its maintenance.
I think there is still a need for FGS in some cases, and we still use it
internally for development, but we'd need a new champion to take care of
official releases.
--
Daniel Morissette
http://www.mapgears.com/
Provider of Professional MapServer Support since 2000
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