Fit Surfaces - generates a NURBS surface based on
the grids that lie in patches that lie on panels.
Modify NURBS Patch Layer - (selectable after NURBS > Fit Surfaces) modifies the smoothness of a NURBS surface by editing the number of NURBS control points and amount of tension on those points, one row of patches at a time.
Modify Surface Tension - allows adjustment of the surface tension that was specified in NURBS > Fit Surfaces.
Relax Surfaces - smoothes the NURBS surface by relaxing the NURBS control points independently of the underlying polygons.
Merge Surfaces - combines two or more patches into
a single patch.
Refit Surfaces - regenerates a NURBS surface in selected patches
Delete Surfaces - (or the Del key) removes the NURBS
surface within selected patches.
Edit Control Points - (available after NURBS
> Fit
Surfaces) modifies a NURBS surface by changing the position
of individual NURBS control points.
Edit Corners and Boundaries - repositions NURBS control points that form spline boundaries and corners (by clicking and dragging).
To CAD Phase - converts a Shape object that has a NURBS surface into into a CAD object.
Spline Boundaries to Curves - converts the spline boundaries of a NURBS surface (the patch lines) to a Curves Object in the Model Manager.
Cross Section - creates a two-dimensional outline where the CAD object intersects a plane.
Remove Surfaces - (applicable when the current Shape object has a NURBS surface) removes the NURBS surface from a Shape object, revealing the underlying panels, patches within those panels, and grids within those patches.