2013

Table Of Contents
Glossary
Commands associated with definitions are shown in parentheses at the end of the
definition.
3D mesh primitive
Basic mesh forms such as boxes, cones, cylinders, pyramids, wedges, spheres,
and tori.
3D view
Any view where the UCS icon appears in rendered colored form; current visual
style is not 2D Wireframe, and the model is being viewed from an isometric
view.
absolute coordinates
Coordinate values measured from a coordinate system's origin point. See also
origin, relative coordinates, user coordinate system (UCS), world coordinates,
and world coordinate system (WCS).
acquired point
In the tracking or object snap tracking methods of locating a point, an
intermediate location used as a reference.
acquisition marker
During tracking or object snap tracking, the temporary plus sign displayed at
the location of an acquired point.
activate
Part of the Autodesk software registration process. It allows you to run a
product in compliance with the product's end-user license agreement.
adaptive degradation
A method of controlling performance that turns off features in a certain order
when performance falls below a specified level.
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