The documentation of the API (last updated on 2014-03-04 for the newest Mercurial changeset "f65927e3ce9b tip" ) is split into three parts:
  1. the Python-based generator
  2. the C++ implementation of the interpolation algorithm
  3. the F90 implementation of the interpolation algorithm
The current Rapsodia source code and all version history is accessible via the mercurial server as explained under Access.