2012

Table Of Contents
The X axis of the dynamic UCS is located along an edge of the face and the
positive direction of the X axis always points toward the right half of the
screen. Only the front faces of a solid are detected by the dynamic UCS.
The types of commands that can use a dynamic UCS include the following:
Simple geometry. Line, polyline, rectangle, arc, circle
Text. Text, Multiline text, table
References. Insert, xref
Solids. Primitives and POLYSOLID
Editing. Rotate, mirror, align
Other. UCS, area, grip tool manipulation
TIP You can easily align the UCS with a plane on a solid model by turning on the
dynamic UCS feature and then using the UCS command to locate the origin on
that plane.
If Grid and Snap mode are turned on, they align temporarily to the dynamic
UCS. The limits of the grid display are set automatically.
You can temporarily turn off the dynamic UCS by pressing Fn-F6 or Shift-Z
while moving the pointer over a face.
NOTE The dynamic UCS is available only while a command is active.
Control the Display of the User Coordinate System
Icon
The user coordinate system icon (UCS icon) helps you visualize the current
orientation of the UCS. Several versions of this icon are available, and you
can change its size, location, and color.
To indicate the location and orientation of the UCS, the UCS icon is displayed
either at the UCS origin point or in the lower-left corner of the current
viewport.
You can choose a 2D or 3D style of the icon to represent the UCS when
working in 2D environment. Shaded style of icon is displayed to represent
the UCS in the 3D environment.
150 | Chapter 6 Create and Modify Objects