DWithin filter

[Miguel Gonçalves]

Hi

Im am using MapServer 4.6.0 for windows.
I am using the following WFS DWithin filter

http://localhost/cgi-bin/mapserv.exe?MAP=../mymap.map&SERVICE=wfs&VERSION=1.0.0&REQUEST=getFeature&TYPENAME=cities&Filter= 

<Filter>
   <DWithin>
       <gml:Point>
       <gml:coordinates>-8.418000,41.539600</gml:coordinates>
       </gml:Point>
       <Distance units='m'>1000</Distance>
   </DWithin>
</Filter>

to get all the points in the layer cities in a range of 1000 meters.
The Problem is that I am not obtaining accurate results.
The points I am getting as result are in a range bigger than 1000 meters.
Does somebody can help me?

The mapfile file that I am using is:


MAP
  SHAPEPATH    "europe_1_data"

  WEB
    METADATA
    WFS_TITLE    "Mapa da Europa"
    WFS_SRS        "http://localhost/cgi-bin/mapserv.exe?"
    END
  END  

############## LAYER cities
  LAYER
    NAME    cities
    DATA    cities
    TYPE    line
    DUMP    TRUE                                   
    TOLERANCEUNITS METERS
    METADATA
    WFS_TITLE    "cities layer"
    GML_INCLUDE_ITEMS "all"
    END
  END

############## LAYER mjroads
  LAYER
    NAME    mjroads
    DATA    mjroads
    TYPE    line
    DUMP    TRUE
    TOLERANCEUNITS METERS
    METADATA
    WFS_TITLE    "mjroads layer"
    GML_INCLUDE_ITEMS "all"
    END
  END

##############LAYER country
  LAYER
    NAME    countries
    DATA    countries
    TYPE    polygon
    DUMP    TRUE
    TOLERANCEUNITS METERS
    METADATA
    WFS_TITLE    "country layer"
    GML_INCLUDE_ITEMS "all"
    END
  END

END


Best regards.

Miguel