2012

The N direction of the mesh is along the boundary curves. If both boundaries
are closed, or if one is closed and the other is a point, the resulting polygon
mesh is closed in the N direction and N equals SURFTAB1. If both boundaries
are open, N equals SURFTAB1 + 1, because division of a curve into n parts
requires n + 1 tabulations.
The 0,0 vertex of the mesh is the endpoint of the first selected curve nearest
the point you used to select that curve.
Selecting objects at the same ends creates a polygon mesh.
Selecting objects at opposite ends creates a self-intersecting polygon mesh.
List of Prompts
The following prompts are displayed.
First defining curve Specifies an object and start point for the new mesh
object.
Second defining curve Specifies an object and start point for the sweep of
the new mesh object.
1684 | Chapter 18 R Commands