2012

Table Of Contents
AutoCAD LT window The drawing area, its surrounding menus, and the
command line.
axis tripod Icon with X, Y, and Z coordinates that is used to visualize the
viewpoint (view direction) of a drawing without displaying the drawing.
(VPOINT)
B-spline curve A blended piecewise polynomial curve passing near a given
set of control points. See also Bezier curve. (SPLINE)
base point 1. In the context of editing grips, the grip that changes to a solid
color when selected to specify the focus of the subsequent editing operation.
2. A point for relative distance and angle when copying, moving, and rotating
objects. 3. The insertion base point of the current drawing. (BASE) 4. The
insertion base point for a block definition. (BLOCK)
baseline An imaginary line on which text characters appear to rest. Individual
characters can have descenders that drop below the baseline. See also baseline
dimension.
baseline dimension Multiple dimensions measured from the same baseline.
Also called parallel dimensions. See also baseline.
basic tooltip Displays a brief description for the tooltip.
Bezier curve A polynomial curve defined by a set of control points,
representing an equation of an order one less than the number of points being
considered. A Bezier curve is a special case of a B-spline curve. See also B-spline
curve.
bitmap The digital representation of an image having bits referenced to pixels.
In color graphics, a different value represents each red, green, and blue
component of a pixel.
blips Temporary screen markers displayed in the drawing area when you
specify a point or select objects. (BLIPMODE)
block A generic term for one or more objects that are combined to create a
single object. Commonly used for either block definition or block reference.
See also block definition and block reference. (BLOCK)
block action Defines how the geometry of a dynamic block reference will
move or change when the custom properties of a block reference are
manipulated in a drawing. A dynamic block definition usually contains at
least one action that is associated with a parameter. (BACTION)
block authoring object A dimensional constraint, parameter, or action that
adds intelligence to a block definition.
1520 | Glossary