MESH allows you to generate a point mesh that approximates
a two-curve, three-curve, four-curve swept surface; a
tabulated cylinder; a surface of revolution; a sphere; or 
a ruled surface. It allows you to define a surface and 
then generate a set of points (a mesh) that approximates
the surface to a user-specified level of accuracy.

Create the mesh by choosing from the following options:

2 CURVE - to create a point mesh defined by a selected
generator curve and director curve. The mesh approximates
a swept surface that is formed by moving (sweeping) the
generator curve along the director curve.

3 CURVE - to create a point mesh that is defined by either
two generator curves and a director curve, or by one
generator curve and two director curves. The mesh
approximates the blending of the two, two-curve surfaces.

4 CURVE - to create a point mesh defined by two generator
curves and two director curves. The mesh approximates the
blending of the four, two-curve surfaces.

TAB CYL - to create a point mesh that approximates the
surface defined by sweeping a generator curve along an 
axis vector (the director) of a specified length.

REVOLUT - to create a point mesh that approximates the
surface formed by rotating a generator curve about an axis
by a specified angular distance.

SPHERE - to create a point mesh that approximates a 
sphere. You can create a sphere in any one of the 
following ways:

- by specifying the center and radius of the sphere, as
well as the number of the latitude and longitude lines.

- by specifying the center and diameter of the sphere, as
well as the number of latitude and longitude lines.

RULED  - to create a point mesh that approximates the
surface formed by simultaneously moving a line (generator)
along two director curves.
