2004

388 | Chapter 17 Change Existing Objects
To offset an object through a point
1 From the Modify menu, choose Offset.
2 Enter t (Through).
3 Select the object to offset.
4 Specify the through point.
5 Select another object to offset, or press
ENTER to end the command.
Modify toolbar
Command line
OFFSET
Mirror Objects
Mirroring creates a mirror image of objects. It is useful for creating symmet-
rical objects because you can quickly draw half the object and then mirror it
instead of drawing the entire object.
You flip objects about an axis called a mirror line to create a mirror image. To
specify this temporary mirror line, you enter two points. You can choose
whether to delete or retain the original objects. Mirroring works in any plane
parallel to the XY plane of the current UCS.
When you mirror text, attributes, and attribute definitions, they are reversed
or turned upside down in the mirror image. To prevent this, set the
MIRRTEXT
system variable to 0 (off). Text then has the same alignment and justification
as before the mirroring. Compare the following illustrations.
1
2
3
4
mirror
line
object selected with
window
mirror line defined
with two points
result with original
object retained
before MIRROR after MIRROR
(MIRRTEXT = 1)
after MIRROR
(MIRRTEXT = 0)