PCYL                                                               Menu: PRISM
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Creates a solid cylinder or a (2D) circular polygon.

        1. * (CHAR) plane of base circle (x-xy,y-yz,z-zx) <x>
        2. * (POINT) center of base circle
        3. * (NUM) radius of base circle
     for option `x':
        4. * (NUM) height of cylinder
     for option `y' or `z':
        4. * (NUM) length of cylinder
     for all options:
        5. * (Y/N) positive cylinder? <y>

Description:
This command creates a 2D circular polygon or a solid cylinder based on the
polygon.
Specify one of the axial planes,  (x  xy  plane,  the default, y  yz plane or
z  xz plane). Define the center of the base circle. Specify the radius, and
the height (for option `x') or the width (for options `y' or `z'). You may
enter `0' for a 2D polygon. Enter `y' for a positive solid or `n' for
a negative one.
You are prompted to create additional cylinders until another command is
selected.

        Example: \pcyl x 3 3 0 4 1 y

Result: A positive cylinder is created with the center of its base at 3 3 0,
a radius of 4 units (meters or feet), and a height of 1 unit.
