Clarification on GetTransformationChain() API

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I'm updating some code that used to work under the pre-SfN release. I'm trying 
to get a transformation chain and then execute it. However, I'm running into 
some issues.

What steps will reproduce the problem?
1. I call GetTransformationChain as follows:
http://incf-dev.crbs.ucsd.edu:8080/atlas-ucsd?service=WPS&version=1.0.0&request=
Execute&Identifier=GetTransformationChain&DataInputs=inputSrsName=Mouse_WHS_1.0;
outputSrsName=Mouse_Paxinos_1.0;

2. From the XML, I parse out the following URL:
http://incf-dev.crbs.ucsd.edu:8080/atlas-ucsd?service=WPS&version=1.0.0&request=
Execute&Identifier=TransformPOI&DataInputs=inputSrsName=Mouse_WHS_1.0;outputSrsN
ame=Mouse_Paxinos_1.0;x=0;y=0;z=0;

3. I then get the exception:

No Such Transformation is available under UCSD Hub.

Can someone clarify if I'm calling the new services incorrectly, from the wrong 
server, or in the wrong order?

Thanks,
Daren

Original issue reported on code.google.com by dlee8...@gmail.com on 15 Jan 2011 at 1:48