3Com 3CRWX120695A Reference Manual page 138

138 C 4: P 3C M S
HAPTER LANNING THE OM OBILITY YSTEM
Drawing a Coverage Area
3WXM supports concave polygons, which have an internal angle greater
than 180 degrees. When drawing a polygon, make sure that two sides of
the polygon do not intersect each other, as shown in Figure 8. Also make
sure start and end points and the vertices are not too close.
Figure 8 Unsupported Polygon Shape
If you are using a complex concave polygon as a coverage area,
computation of MAP access points might take longer than the
computation for an area with a less complicated shape.
When drawing a coverage area, make sure it extends just short of
external walls. If the coverage area includes external walls, 3WXM
accounts for the external walls when computing how many MAP access
points are required for the coverage area. This might lead to an
inaccurate MAP count.