ABSTRACT
Ruled surface A ruled surface is a polygon mesh created between two defined boundaries selected by the user. The objects which can be used to define the boundaries are lines, arcs, circles, points and 2D/3D polylines. The surface created is a ‘one-way’ mesh of straight lines drawn between the two selected boundaries. The number of straight line meshes is controlled by the system variable SURFTAB1 which has an initial value of 6.
