SYNOPSIS:
    NURB_TRAPEZ [modeopt] [nurb]

DESCRIPTION:
    Flatten the NURB given or the current NURB, if none
    given.
    Mode can be one of
    '-e'dge:  Change position of control points that are on an
              outer edge
    '-f'ace:  Change position of control points that are on an
              outer face (2d/3d only)
    '-i'nner: Change position of control points inside (3d only)
    '-a'll:   All of the above

SEE ALSO:
    nurb, NURB_AUTOFIT, NURB_SET
