TYPE: SOP
TITLE: Measure SOP

The Measure operation performs measurements on primitives.  

The area of polygons is only exact when they are planar.  Otherwise it
is the area of the triangle fan of the polygon from it's barycenter.

Bezier and NURBs curves use the measurements of the polygon which
shares their control points.  Bezier and NURBs patches use the
measurements of the mesh which shares their control points.

Parameters:

    Group            - The primitive group to be measured.
    Type             - The type of measurement to be performed.  It is
                       one of area or perimeter.
    Override Name    - Determines if the default attribute name should
                       be used.  The default for perimeter is
                       "perimeter" and for area "area".
    Attribute        - The name of the attribute to store the
                       generated measurement in, if the default is not
                       to be used.

See Also: Source POP(../pop/source)
