POLYGON allows you to specify entities using a closed 
broken line segment. The cursor is used to specify the
vertices of the polygon.

Specify the type of polygon selection by choosing from the
following options. An asterisk indicates which option is
active. The option that is active when you choose the 
second corner of the window is the one that is used.

ALL IN - to select the entities lying totally inside the 
window.

PART IN - to select the entities lying at least partly
inside the window.

ALL OUT - to select the entities lying totally outside the 
window.

PART OUT - to select the entities lying at least partly 
outside the window.

Indicate the vertex of the polygon by moving the cursor 
to the desired position on the screen and pressing 
the cursor button or by pressing the space bar and 
entering the x and y view coordinates. When the cursor 
is moved, a rubberline is connected to this first 
position.

Indicate subsequent vertices of the polygon by moving 
the cursor to the desired position on the screen and 
pressing the cursor button or by pressing the space 
bar and entering the x and y view coordinates.  
Consecutive vertices are connected by solid line 
segments.  You can indicate up to twenty vertices.

When you have indicated the last vertex, press <Enter> 
and the polygon is automatically closed by connecting 
the last vertex to the first. If you indicated twenty 
vertices, you do not need to press <Enter>, the polygon 
is automatically closed for you.

The entities are selected according to the indicated 
menu option (i.e., ALL IN, PART IN, ALL OUT, or 
PART OUT).
