If you do not close the polygon, the area is calculated as if a line were drawn
from the last point entered to the first. When the perimeter is calculated, that
line length is added.
Object
Calculates the area and perimeter of the selected object. You can calculate the
area of circles, ellipses, splines, polylines, polygons, regions, and solids.
NOTE
2D solids (created with the SOLID command) do not have an area reported.
Select objects:
If you select an open polyline, the area is calculated as if a line were drawn
from the last point entered to the first. When the perimeter is calculated that
line length is ignored.
open polyline
selected
area defined
The centerline of a wide polyline is used to make area and perimeter (or length)
calculations.
wide polyline
Add
Turns on Add mode and keeps a running balance of the total area as you
continue to define areas. The Add option calculates the individual areas and
perimeters of defined areas and objects as well as the total area of all defined
areas and objects. You can use the Subtract option to subtract specified areas
from the total area.
Specify first corner point or [Object/Subtract]: Specify a point (1) or enter an option
78 | Chapter 3
Summary of Contents for AUTOCAD 2006
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