hohlraum/gdsCAD — pull request #13 by PhilReinhold (2014-09-12 14:18:41+00:00)
Title: Boundaries should be closed

Please note http://www.rulabinsky.com/cavd/text/chapc.html section C.4

Note that boundaries must be closed explicitly, so the first and last coordinate values must be the same

It appears to me that this was not the behavior of gdsCAD currently.