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

Select the line, arc, conic, or spline to be used as the
generator curve.

Enter the number of segments that the generator curve is 
to be broken into.

Define the cylinder axis by choosing one of the following
options:


2 PTS - to define the cylinder axis by selecting a start
point and an endpoint. An axis vector is directed from the
start point to the endpoint.

Using a Position Menu option, indicate a start point and 
an endpoint to define the axis vector.

LINE - to define the cylinder axis by selecting a line
entity. The axis vector is directed from the end of the 
line closest to the selection point, to the opposite end 
of the line.

Select a line entity to define the axis vector.

END ENT - to define the cylinder axis by selecting a line,
arc, conic, polyline, or spline. The axis is defined as 
the outward-pointing tangent vector at the end of the 
entity, closest to the cursor selection position.

Select a line, arc, conic, polyline, or spline.

KEYIN - to define the cylinder axis by entering the axis
vector coordinates.

Define the direction of the vector by entering the x, y, z
vector components, either in world or construction
coordinates.


Enter the length of the cylinder. If a negative length is
entered, the direction of the axis vector is reversed.

Enter the number of segments that are to be generated in
the axis direction.

A temporary mesh is displayed, along with a NO/YES menu. 
If the curves are connected correctly, choose YES. If the
curves are not connected correctly, choose NO and select
another generator curve.

Indicate whether to group the entities. Choose NO to
continue without grouping. Choose YES to create a group,
and enter a group name.

The mesh is created.

