NAME

       OpenBSpline, S_OpenBSpline, F_OpenBSpline, SF_OpenBSpline, SFH_OpenBSpline, ClosedBSpline,
       S_ClosedBSpline,  F_ClosedBSpline,  SF_ClosedBSpline,   SFH_ClosedBSpline   -   structured
       graphics classes for open and closed B-splines

SYNOPSIS

       #include <Unidraw/Graphic/splines.h>

DESCRIPTION

       OpenBSpline  and ClosedBSpline are Vertices subclasses that serve as abstract base classes
       for  open  and  closed  B-spline  structured  graphics.   Predefined  subclasses   include
       S_OpenBSpline, F_OpenBSpline, and SF_OpenBSpline, which draw stroked, filled, and stroked-
       filled  open  B-splines,   respectively;   and   S_ClosedBSpline,   F_ClosedBSpline,   and
       SF_ClosedBSpline,  which  draw  stroked,  filled,  and  stroked-filled  closed  B-splines,
       respectively.  The SFH_OpenBSpline and SFH_ClosedBSpline subclasses are identical to their
       SF_-prefixed counterparts, except they can detect hits on their control points in addition
       to detecting hits on their visible parts.  The stroked subclasses  store  a  PSBrush,  the
       filled subclasses store a PSPattern, and the stroked-filled subclasses store one of each.

OPENBSPLINE PROTECTED OPERATIONS

       OpenBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
              OpenBSpline's  constructor  is  protected  to prevent instantiation of the abstract
              base class.  The parameters are passed directly to the Vertices constructor.

OPENBSPLINE SUBCLASS PUBLIC OPERATIONS

       S_OpenBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
       F_OpenBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
       SF_OpenBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
       SFH_OpenBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
              Constructors for the various predefined Rect subclasses.

CLOSEDBSPLINE PROTECTED OPERATIONS

       ClosedBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
              ClosedBSpline's constructor is protected to prevent instantiation of  the  abstract
              base class.  The parameters are passed directly to the Vertices constructor.

CLOSEDBSPLINE SUBCLASS PUBLIC OPERATIONS

       S_ClosedBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
       F_ClosedBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
       SF_ClosedBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
       SFH_ClosedBSpline(Coord* x, Coord* y, int count, Graphic* = nil)
              Constructors for the various predefined Rect subclasses.

SEE ALSO

       Graphic(3U), Vertices(3U), geomobjs(3U), pspaint(3U)