2012

This means you can first create an object such as a line and then later adjust
it to fit exactly between other objects.
Objects you select as cutting edges or boundary edges are not required to
intersect the object being trimmed. You can trim or extend an object to a
projected edge or to an extrapolated intersection; that is, where the objects
would intersect if they were extended.
If you do not specify a boundary and press Enter at the Select Objects prompt,
all displayed objects become potential boundaries.
NOTE To select cutting edges or boundary edges that include blocks, you can
use only the single selection, Crossing, Fence, and Select All options.
Trim Objects
You can trim objects so that they end precisely at boundary edges defined by
other objects.
For example, you can clean up the intersection of two walls smoothly by
trimming.
An object can be one of the cutting edges and one of the objects being
trimmed. For example, in the illustrated light fixture, the circle is a cutting
edge for the construction lines and is also being trimmed.
When you trim several objects, the different selection methods can help you
choose the current cutting edges and objects to trim. In the following example,
the cutting edges are selected using crossing selection.
822 | Chapter 19 Select and Modify Objects