PCUBE                                                              Menu: PRISM
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Creates a solid cube given base plane and edge length (greater than 0).

        1. * (CHAR) plane of base square (x-xy,y-yz,z-zx) <x>
        2. * (NUM) edge length (greater than 0)
        3. * (POINT) starting point
        4. * (Y/N) positive cube? <y>

Description:
This command creates a solid cube. Choose a plane: x  xy plane (the default),
y  yz plane or z  xz plane. Specify the edge length. Define the starting point
and specify whether the cube is to be positive (option `y') or negative
(option `n'). The cube height will be identical to its edge length.

        Example: \pcube x 4 0 0 0 y

Result: A 4 by 4 by 4 cube is created having its lower-left corner at the
point 0 0 0.
