If you enter -boundary at the Command prompt, the following prompts are displayed.
Specify internal point or [Advanced options]: Specify a point or enter a
Creates a region or polyline from existing objects that form an enclosed area. Specify a point inside the area.
Sets the method BOUNDARY uses to create the boundary.
Enter an option [Boundary set/Island detection/Object type]: Enter an option or press Enter to return to the previous prompt
Defines the set of objects boundary analyzes when it creates a boundary from a specified point. For information about defining a boundary set at the Command prompt, see the HATCH Command prompt option.
Specifies whether boundary uses objects within the outermost boundary as boundary objects. For information about specifying island detection at the Command prompt, see the HATCH Command prompt option.
Specifies the type of object that boundary creates.