Re: [galeon] Rudimentary Exercise of GALEON WCS Servers

• To: "Dominic Lowe" <d.lowe@xxxxxxxx>
• Subject: Re: [galeon] Rudimentary Exercise of GALEON WCS Servers
• From: "Ben Domenico" <Ben@xxxxxxxxxxxxxxxx>
• Date: Wed, 30 Jul 2008 10:03:40 -0600

Hi,

I just made an attempt to update the wiki page with the salient comments from 
the follow up email discussions.

http://galeon-wcs.jot.com/WikiHome/GALEON%20WCS%20%22Tests%22

In there are pointers to the source for Dominic's  python client code.

Please keep this valuable discussion going.  I'll attempt to find a better way 
to gather the information, but hopefully this will suffice for now.

-- Ben

On Wed, Jul 30, 2008 at 7:19 AM, Dominic Lowe <d.lowe@xxxxxxxx> wrote:

Hi Ben and All,

Following on from Ben's experiments I have attempted to get a bit more
information about any problems the client had accessing various servers.

My findings are below. Hopefully Ben can add these notes to the wiki when
he
has time.

Regards,

Dominic


PFEG:
-------
Have discussed this with Roy and it is a suspected problem with the
Bounding
Box extents on global datasets.


Argoss:
----------

This server requires Width and Height parameters.

Adding "width=600, height=400" to the parameters returns a different error
possibly suggesting some type of file access problem on the server side ?

<?xml version='1.0' encoding="ISO-8859-1" ?>
<ServiceExceptionReport version="1.2.0"
xmlns="http://www.opengis.net/ogc";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://www.opengis.net/ogc
http://schemas.opengis.net/wms/1.1.1/OGC-exception.xsd";>
 <ServiceException>msDrawRaster(): Unable to access file. (netCDF:
%tidethamdata%:u)
 </ServiceException>
</ServiceExceptionReport>


BADC:
--------
There is a bug with the BADC server which I've fixed in development but not
deployed yet.


GMU:
------
Have fixed bug in client wcs code on subversion, but now the server has XML
content errors.

e.g. this document seems to have invalid characters in it (and won't render
in
Firefox).


http://data.laits.gmu.edu:8080/cgi-bin/wcs110?service=WCS&request=DescribeCoverage&version=1.1.0&identifiers=NETCDF%3A%22%2FData%2FG12IR04D20011013014200.nc%22%3ABand4_TEMP&format=text%2Fxml

Uni of Florence:
--------------------
I have fixed a couple of bugs in the client code and can now access the
server.
However I get a 'Content not allowed in prolog' error when trying to unpack
the Multipart Mime response from a getCoverage request.

I think that there may be some headers missing from the multipart mime
response.

i.e. I suspect there should be something like this:
Content-Type: multipart/mixed; boundary="===============1992083144=="
MIME-Version: 1.0

Before the XML and NetCDF parts.

Here you can compare the response from the BADC server:

wget "
http://ndgbeta.badc.rl.ac.uk/wcs/badc.nerc.ac.uk__NDG-A0__AWQX8gTc?Service=WCS&request=GetCoverage&version=1.1.0&TimeSequence=2024-01-15T00:00:00.0&Format=cf-netcdf&store=false&BoundingBox=-80,10,80,100&Identifier=EhWv0qW5
"

With the University of Florence server:

wget "
http://kronos.pin.unifi.it:8080/wcs-1.1.0-service/ogc-wcs?service=WCS&format=image%2FnetCDF&request=GetCoverage&version=1.1.0&identifier=23lug07H&store=false
"

But, I am by no means very familiar with MIME so I may easily have
misinterpreted something.  If anybody knows which (if either) is the
correct
way to deliver multipart MIMEs that would be most helpful.

• References:
  • [galeon] Rudimentary Exercise of GALEON WCS Servers
    • From: Ben Domenico
  • Re: [galeon] Rudimentary Exercise of GALEON WCS Servers
    • From: Dominic Lowe