Neil McKay works in the Manufacturing Systems Research lab
[http://www.gm.com/company/careers/career_paths/rnd/lab_manuf.html] at
General Motors Research and Development. He also has taught
computer graphics at the University of Michigan [http://www.umich.edu] in Ann Arbor.
His web page is:

http://www.eecs.umich.edu/~mckay

The computer section of the web page has a number of Tcl/Tk extensions
available for download, including:

   * [xop]
   * [rootwin]

Neil is also the author of [Tk3D], which his employer has very graciously
allowed him to release as open source code.

Also known as [NDM].
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[Category Person]