[mapserver-users] problem with INTERSECTS query from OpenLayers to mapserver

[Sally Buechel]

Am hoping someone can help or at least point me in the right direction
regarding a problem I'm having trying to send a spatial filter produced in
OpenLayers to mapserver.  What I'm trying to do is so basic, I'm sure that
many have done this, yet I've been unsuccessful.  I thought this would be
easy.  With much searching I have found similar questions, but nothing
actually answering or showing a working example of this.

 

I'm using mapserver 6.2.1 and the current OpenLayers.js.  I can run the
wfs.map file using shp2img and get a valid response from mapserver, I can
run non-spatial filters using my OpenLayers WFS call to mapserver.  The POST
request sent to mapserver with the spatial query looks fine, but I simply
get  the not very helpful "premature end of script headers : mapserv" in
response.  The spatial input is a hand-drawn polygon in OpenLayers and the
intersection at the mapserver end is a postgis table containing a polygon
field.  The table is large, but a spatial restriction should always yield a
manageable number of records.  Without a spatial restriction in the filter,
I've noticed that mapserver tried to load all the data, so have currently
restricted it to 100 records for testing/debugging.  I'm assuming once I get
the spatial filter that this will restrict the number of records retrieved
on the server side.  I have some assumptions, but as I said I've not been
able to find a working example of this online, maybe because its too simple
and everyone but me has it working?

 

Should what I'm trying to do work or am I just beating my head against the
wall?  It doesn't seem that this should be so hard.

 

Sally

 

 

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