This is the first implementation of Knot3 from Oct 2013 aka "the prototype", developed by KIT student Tobias Schulz.
It is API compatible to the official version of Knot3 which was later released by six students of the Karlsruhe Institute of Technology in collaborative work with people from the Staatliche Hochschule für Gestaltung. Both the code and the pipe and node models are available under the conditions of the GNU General Public License v3, or any later version.