RULED allows you to create a polygon mesh that 
approximates the surface that is formed by simultaneously
moving a line (generator) along two director curves.

Choose either a three-sided or four-sided polygon from the
displayed menu. A three-sided polygon mesh allows for 
easier shading, a four-sided polygon mesh is a more 
precise mesh.

Create the mesh by choosing from the following options:

NUMSEGS - to divide the selected curves into a specific
number of equal-length segments.

ARCLNTH - to divide the selected curves into segments of a
specific length, with the last segment being of length
equal to, or less than, the specified length.

A temporary mesh is displayed. Choose NO from the menu
displayed if the curves are not connected correctly or if
you choose not to create lines in the cross-direction.
Choose YES if they are connected correctly or if you 
choose to create lines in the cross-direction. 

The NUMSEGS/ARCLNTH menu is displayed again. 

Use the same procedure to create the cross-direction mesh.

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.


