User`s guide

174 ■ Chapter 3: Manipulating Objects
5. To erase using an implied crossing window:
■ Start the Erase command.
■ Click near point (1), then near point (2) as
indicated in the following image. Notice
that you are now clicking from right to left.
All of the objects that the selection window
crosses are highlighted.
■ Press ENTER to complete the Erase
command.
6. In another part of the drawing (zoom in if
necessary), erase selected objects using the
Crossing Polygon selection option:
■ Begin the Erase command.
■ At the Select objects prompt, enter CP.
Press ENTER.
■ Click the points for the crossing polygon
following the illustration below.
■ Begin with (1) and follow the points
consecutively until you get to (6) and press
ENTER.
■ All of the objects that the polygon window
has crossed are highlighted.
■ Press ENTER to complete the Erase
command.
7. This time erase using the Window Polygon
selection option:
■ Start the Erase command.
■ At the Select objects prompt, enter WP.
Press ENTER.
■ Click the points for the window polygon
following the illustration below.
■ Begin with (1) and follow the points
consecutively until you get to (8). Press
ENTER.
■ Only the objects that are completely within
the polygon window are highlighted.
■ Press ENTER to complete the Erase
command.
8. Now practice selecting objects with the Fence
selection option. Zoom if necessary to the part
of the drawing shown below:
■ Begin the Erase command
■ At the Select objects prompt, enter F. Press
ENTER.
■ Click in the drawing as indicated in the
illustration below, beginning with (1).
■ When you reach point (7), press ENTER to
complete the selection set.
■ Press ENTER to execute the Erase
command.