splines(3U) InterViews Reference Manual splines(3U)
NAME
OpenBSpline, S_OpenBSpline, F_OpenBSpline, SF_OpenBSpline, SFH_OpenBSpline, ClosedBSpline, S_ClosedBSpline, F_ClosedBSpline, SF_ClosedB-
Spline, 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)
Unidraw 2 February 1991 splines(3U)