2012

NOTE You can trim objects without exiting the EXTEND command. Press and
hold Shift while selecting the objects to be trimmed.
Trim and Extend Wide Polylines
2D wide polylines trim and extend at their centerlines. The ends of wide
polylines are always square. Trimming a wide polyline at an angle causes
portions of the end to extend beyond the cutting edge
If you trim or extend a tapered 2D polyline segment, the width of the extended
end is corrected to continue the original taper to the new endpoint. If this
correction gives the segment a negative ending width, the ending width is
forced to 0.
Trim and Extend Spline-Fit Polylines
Trimming a spline-fit polyline removes the curve-fit information and changes
the spline-fit segments into ordinary polyline segments.
Extending a spline-fit polyline adds a new vertex to the control frame for the
polyline.
Trim or Extend in 3D
You can trim or extend an object to any other object in 3D space, regardless
of whether the objects are on the same plane or parallel to the cutting or
boundary edges. In the TRIM and EXTEND commands, use the Project and
Edge options to select one of three projections for trimming or extending:
■ The XY plane of the current UCS
Change the Size and Shape of Objects | 681