As it turns out, I'm working on an open source (C#) implementation of the client side for OpenSearch. I'd like to include support for the OGC extensions to query by Geo and Time.
There are publicly available servers that implement the Geo and Time extensions, especially in the earth observation area (e.g. NASA Echo). However they don't implement the "extra" bits defined by OGC.
Are there any publicly available servers that implement any of the OGC extensions to the original OpenSearch Geo/Time extensions? In particular, I'm looking for implementations that expose the spatial and temporal containment operations ("relation" parameter).
Publicly available is preferred because:
- Saves work in setting up a test server
- Unit tests can be written that use it directly
- Avoids confirmation bias in testing
However in the absence of publicly available, anything implementing the draft OGC spec (even "git branch" level maturity) would be better than what I have now.