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Publications

PLEASE NOTE: The Publications System provided by the Manufacturing Systems Integration Division (MSID) has moved to: http://www.mel.nist.gov/msidlibrary/publications.html. The pages below are maintained for archival purposes only.

Publication summary

Author(s): Sandy Ressler

Publication date: 1989

Citation: Sandy Ressler: "Tile Tool: A Graphical Interface for the Exploration of Generalized Penrose Tilings," NBSIR 3488, National Bureau of Standards, Gaithersburg, MD, 1989.

Availability:

  • A paper copy of this document is available by contacting Kristy Thompson [web,email]
Abstract:
A graphical system to experiment with non-periodic tilings of a plane has been developed as part of research supported by the Bureau of Engraving and Printing (BEP) and the National Bureau of Standards (NBS). Non-periodic tilings have several properties which may be useful in the domain of security printing. Documents such as currency, stocks, bonds, and checks which have values much greater than the material they are composed of, are security documents. The forging of such documents has continued to be a problem as access to sophisticated equipment becomes widespread.

Attention users of these documents: The information contained in these files should not be altered in any way. Attempts to change these files will adversely impact the integrity of the information and its usefulness. It is intended for use as is and will lose its usefulness if changed.

 

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