TYPE: SOP
TITLE: Refine SOP

The Refine operation allows you to increase the number of CVs in any NURBS,
Bezier, polygonal surface or face without changing its shape.  It can also
decrease the number of CVs within a given tolerance.

Parameters:

    Group             - Subset of geometry to refine.
    First U           - Starting location in U [0,1].                /domainu1
    Second U          - Ending location in U [0,1].                  /domainu2
    U Divisions       - Number of divisions to create in U.          /divsu
    First V           - Starting location in V [0,1].                /domainv1
    Second V          - Ending location in V [0,1].                  /domainv2
    V Divisions       - Number of divisions to create in V.          /divsv

    Refine - 
        NURBS Count U, V - Number of knots to insert in each location   /refinev
                           when refining NURBS geometry.                /refineu
        Uniform Domain Lengths - Refine splines at equal intervals.
	Uniform Arc Lengths    - Each refinement is done at the center
			of the maximum knot spans (splines) or edge 
			length (polygons).

    Unrefine - 
	NURBS Count U, V     - Number of knots to remove from NURBS
	                       geometry at each location.  /unrefineu /unrefinev
        NURBS Tolerance U, V - Only remove knots that do not change the    /tolu
                               resulting shape by more than this distance. /tolv
    
    Subdivide - 
        Uniform Domain Lengths - Divides splines at equal intervals.
	Uniform Arc Lengths    - Each divide is done at the center
			of the maximum knot spans (splines) or edge 
			length (polygons).

See also: Resample, Convert, Carve
