Note that this is not yet a specification, it is a proposal that might be adopted as a specification at some point, likely after further changes. Thus WCTS is a protocol in flux.
This implementation is based on the OGRSpatialReference class within the GDAL/OGR library. The underlying projections engine is PROJ.4, and the GML support from OGR is used.
The code implementing the server can be found in the GDAL/OGR CVS tree in the gdal/ogr/wcts directory, along with some sample request documents. Currently all the server specific code is in the ogrwcts.cpp file in this directory.
Some Implementation Details on features and limitations of the server are available. There is also an Installation and Configuration document.
Some sample XML input requests are available for the following requests:
An HTML form based client (backed by a cgi-bin program) has been implemented for user interface to WCTS services and testing.
A user form for interacting with an instance of the deegree based server is available at lat/lon .