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- GENERAL allows you to choose a set of entities (excluding
- points) whose projections define a closed region in the
- current view. Islands are permitted inside of the selected
- outer perimeter.
-
- Choose Selection Menu option to specify the desired set of
- entities. As with crosshatching, islands can be chosen that
- which will be excluded (or included) as required.
-
- If the selected entities do not form a closed shape, they
- are rejected. Press <Enter> to continue. Choose from the
- Selection Menu again, and reselect desired entities.
-
- Rectangular shapes (referred to as panels) are used to
- approximate the area of the selected shape. The area and
- centroid values are calculated by summing up the area and
- centroids for each panel within the shape. These panels
- are stacked sequentially through the shape and are sized
- according to the assigned panel width value.
-
- A smaller width value generates more panels within the
- shape, therefore adding more accuracy to the area and
- centroid calculated.
-
- The area for the closed shape is calculated and displayed.
- Press <Enter> again to display the X and Y coordinates of
- the centroid, with respect to the view coordinate system
- (XV, YV). A temporary asterisk (*) is displayed at the
- centroid location.
-