INT                                                                Menu: SETOP
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Creates a new solid entity consisting only of the coincident portions of two
interpenetrating original entities.

        1. (IND) first solid for intersection
        2. (Y/N) confirm choice
        3. (IND) second solid for intersection
        4. (Y/N) confirm choice
        5. (Y/N) keep the result ?

Description:
This command creates a new entity consisting only of the coincident portions
of two original interpenetrating entities.
Parameters 1 and 2 ask you to identify the first entity, and confirm your
choice. Parameters 3 and 4 do the same for the second entity. The system will
display the resultant entity, and ask you (parameter 5) if you wish to keep
it.
The result of this process is a complex solid entity (data-type 9). If only
one of the entities involved in this operation is an axial wall the result is
a complex wall that continues to possess wall characteristics but the commands
\chaw, \chaa, \fixw, and \fixa no longer function.

        Example: \int (ind) y (ind) y y

Result: The coincident portions of the two original entities are now a new
entity.
Limitations
1. It is recommended to execute \int on entities of the same color otherwise
   the color of the resultant entity is unpredictable.
2. When two entities exist in different layers, the resulting solid will
   reside in the layer of the first entity.
3. If there is no interpenetration between the two entities they will both be
   erased.
4. The number of \int commands that may be executed on any entity is limited
   by the maximum of 200 points on any one of its polygons. You will be
   notified if you go beyond this limit.
5. It is not possible to execute \int on negative entities.
6. This command will not operate on placed entities that contain a negative
   solids or  2D entities.
