2013

Table Of Contents

The ruled mesh is constructed as a 2 by N polygon mesh. RULESURF places

half the mesh vertices at equal intervals along one defining curve, and the

other half at equal intervals along the other curve. The number of intervals

is specified by the

SURFTAB1 (page 1500) system variable. It is the same for each

curve; therefore, the distance between the vertices along the two curves differs

if the curves are of different lengths.

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.