CATT                                                               Menu: MANIP
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Copies the selection group a specified number of times by attaching.

        1.   (POINT) first point of from-set
        2.   (POINT) second point of from-set
        3.   (POINT) third point of from-set
        4.   (POINT) first point of to-set
        5. * (POINT) second point of to-set
        6. * (POINT) third point of to-set
        7. * (NUM) number of copies

Description:
This command copies all the entities in the selection group a specified number
of times. The relation between the original and the first copy as well as
between every consecutive pair of copies is defined by identifying a specified
plane relative to the selection group and another specified plane in space.
This command is especially useful for the creation of a staircase or other
cases where the desired relation between copies of a set is a combination of
translation and rotation.

The relative displacement and rotation are given between two indicated sets of
three points ("to" and "from" sets), each identifying a plane in space that
may have any inclination or location relative to the selection group. The
defined displacement and rotation become the rule governing the relation
between each consecutive copy. The selection group keeps its internal
organization and its relation to the first defined plane ("from" set). The
following rules apply in defining the relation between the copies in the
series:
1. The plane defined by points 1-2-3 lies on the plane defined by points 4-5-6
2. The first point of the copy coincides with the first point of the original
   "to-set".
3. The virtual line between the first and second points lies on the virtual
   line between the fourth and fifth points.
After you have defined the relationship,indicate the number of desired copies.
You may define additional "to-set"s until you enter a new command.
