40 The Datum toolset

40. The Datum toolset

A datum is a construction aid that helps you progress through the modeling process when the model itself does not contain the desired geometry. You use the Datum toolset to create these construction aids. This chapter explains how you use the Datum toolset to create and position datum points, axes, planes, and coordinate systems. The following topics are covered:

“Understanding the role of datum geometry,” Section 40.1
“Using the Datum toolset,” Section 40.2
“Why are datum coordinate systems so important?,” Section 40.3
“Understanding a datum as a feature,” Section 40.4
“An overview of datum creation techniques,” Section 40.5
“Creating datum points,” Section 40.6
“Creating datum axes,” Section 40.7
“Creating datum planes,” Section 40.8
“Creating datum coordinate systems,” Section 40.9