The Geometric Tolerancing Module manipulates actual design level manufacturing
data. Currently, this data is displayed as "old" notes or annotations on the
drawing of a part. The Geometric Tolerancing Module allows the designer to
include manufacturing information, in the form of Tolerance Features
(datums, datum targets, and tolerances), directly in the master model of the
part. These Tolerance Features are "smart," knowing when a change in the model
influences a change in a Tolerance Feature. The module does simple checking
automatically and comprehensive checking on user demand.

This API allows users of the Geometric Tolerancing Module to further enhance
their design environment and facilitate advanced design for manufacturing
on NX.

tolerance features