2011

Table Of Contents
control frame A series of point locations used as a mechanism to control the
shape of a B-spline. These points are connected by a series of line segments
for visual clarity and to distinguish the control frame from fit points. The
CVSHOW and CVHIDE commands must be turned on to display and hide
control frames.
control point See control frame.
coordinate filters Functions that extract individual X, Y, and Z coordinate
values from different points to create a new, composite point. Also called X,Y,Z
point filters.
crosshairs A type of cursor consisting of two lines that intersect.
crossing selection A rectangular area drawn to select objects fully or partly
within its borders.
CTB file SA color-dependent plot style table.
ctrl-cycle Method for cycling between different behaviors while editing
geometry, either in a command or when grip-editing. Pressing and releasing
the CTRL key cycles the behavior. For constrained geometry, CTRL-cycling
switches between enforcing and relaxing constraints.
current drawing A drawing file that is open in the program, and receives any
command or action that you enter.
cursor See pointer and crosshairs.
cursor menu See shortcut menu.
curve-fit A smooth curve consisting of arcs joining each pair of vertices. The
curve passes through all vertices of the polyline and uses any tangent direction
you specify.
custom grips In a dynamic block reference, used to manipulate the geometry
and custom properties.
custom object A type of object that is created by an ObjectARX application
and that typically has more specialized capabilities than standard objects.
Custom objects include parametric solids (AutoCAD Mechanical Desktop),
intelligently interactive door symbols (AutoCAD Architecture), polygon objects
(AutoCAD Map 3D), and associative dimension objects (AutoCAD and
AutoCAD LT). See also proxy object and object enabler.
Glossary | 1393