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AMRF Part Model Extensions



Allison Barnard


This document specifies the addition of ellipses, hyperbolas, parabolas, and b-splines to the AMRF Part Model Report Format. These reports are used throughout the AMRF to communicate part model data between application processes and the global AMRF database. Part model data consists of geometry, topology, features, and tolerances. This document is intended to be used by programmers implementing systems that make use of AMRF part model data. While this report is a complete description of the extensions, the document AMRF Database Report Format: Part Model by T.H. Hopp (NBSIR 87-3672) is also required to complete the grammar.
NIST Interagency/Internal Report (NISTIR) - 4189
Report Number


AMRF, part model data, tolerances


Barnard, A. (1989), AMRF Part Model Extensions, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed April 23, 2024)
Created August 31, 1989, Updated October 12, 2021