Subject: Using islands and island detection



Islands are closed loops that reside inside other closed loops. CADdirect provides island-detection options so that you can specify which islands, if any, should be con­sidered in the area selection for a boundary.

The following figure shows a rectangular polyline with two islands. The circle is referred to as the outer island, and the octagon is referred to as a nested island.

 

Rectangular polyline (A) with outer island (B), with point (C) specifying the area selection, and nested island (D).

You can choose from three island-detection methods.

   Nested Islands The outer entity and all its islands are considered for the polyline.

   Outer Only Only the outer entity and its outer island are considered for the polyline.

   Ignore Islands Only the outer entity is considered for the polyline.

3D Array
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