Provided by: ivtools-dev_1.2.11a1-11_amd64 
NAME
SplineComp, SplineView, PSSpline, ClosedSplineComp, ClosedSplineView, PSClosedSpline - open and closed
spline component subjects, views, and PostScript external representations
SYNOPSIS
#include <Unidraw/Components/spline.h>
DESCRIPTION
SplineComp and ClosedSplineComp are VerticesComps that define open and closed splines, respectively.
SplineComp uses an SFH_OpenBSpline graphic to store its graphical attributes, while ClosedSplineComp uses
an SFH_ClosedBSpline. SplineView and ClosedSplineView are VerticesViews for displaying open and closed
splines. PSSpline and PSClosedSpline are PSVertices that externalize their subject's information in
PostScript form.
SPLINECOMP PUBLIC OPERATIONS
SplineComp(SFH_OpenBSpline* = nil)
The constructor takes an optional control point hit-detecting stroked-filled open B-spline graphic
that defines the attributes of the spline.
SFH_OpenBSpline* GetSpline()
Return the SFH_OpenBSpline graphic that defines the spline's attributes. GetSpline is simply a
more specific form of the GetGraphic operation.
SPLINEVIEW PUBLIC OPERATIONS
SplineView(SplineComp* = nil)
Create a SplineView, optionally supplying the subject.
virtual Manipulator* CreateManipulator(
Viewer*, Event&, Transformer*, Tool*
)
virtual void InterpretManipulator(Manipulator*)
SplineView redefines its response to manipulation with a GraphicCompTool. The user clicks the
left mouse button to specify each vertex and clicks with the middle mouse button to specify the
final vertex. Vertex positioning will be constrained by gravity, if any. SplineView also defines
a response to the ReshapeTool, allowing the user to click on one of its control points to
reposition it. The subject is actually replaced (via ReplaceCmd) with a new SplineComp subject
reflecting the repositioned control point. Repositioning will be influenced by gravity.
SplineComp* GetSplineComp()
Return the subject.
PSSPLINE PUBLIC OPERATIONS
PSSpline(SplineComp* = nil)
Construct a PostScript external representation of the given subject, if any.
PSSPLINE PROTECTED OPERATIONS
virtual const char* Name()
PSSpline identifies itself as "BSpl" in the PostScript output.
CLOSEDSPLINECOMP PUBLIC OPERATIONS
ClosedSplineComp(SFH_ClosedBSpline* = nil)
The constructor takes an optional control point hit-detecting stroked-filled closed B-spline
graphic that defines the attributes of the closed spline.
SFH_ClosedBSpline* GetClosedSpline()
Return the SFH_ClosedBSpline graphic that defines the closed spline's attributes. GetClosedSpline
is simply a more specific form of the GetGraphic operation.
CLOSEDSPLINEVIEW PUBLIC OPERATIONS
ClosedSplineView(ClosedSplineComp* = nil)
Create a ClosedSplineView, optionally supplying the subject.
virtual Manipulator* CreateManipulator(
Viewer*, Event&, Transformer*, Tool*
)
virtual void InterpretManipulator(Manipulator*)
ClosedSplineView redefines its response to manipulation with a GraphicCompTool. The user clicks
the left mouse button to specify each vertex and clicks with the middle mouse button to specify
the final vertex. Vertex positioning will be constrained by gravity, if any. ClosedSplineView
also defines a response to the ReshapeTool, allowing the user to click on one of its control
points to reposition it. The subject is actually replaced (via ReplaceCmd) with a new
ClosedSplineComp subject reflecting the repositioned control point. Repositioning will be
influenced by gravity.
ClosedSplineComp* GetClosedSplineComp()
Return the subject.
PSCLOSEDSPLINE PUBLIC OPERATIONS
PSClosedSpline(ClosedSplineComp* = nil)
Construct a PostScript external representation of the given subject, if any.
PSCLOSEDSPLINE PROTECTED OPERATIONS
virtual const char* Name()
PSClosedSpline identifies itself as "CBSpl" in the PostScript output.
SEE ALSO
Event(3I), GraphicComp(3U), GraphicCompTool(3U), GraphicView(3U), Grid(3U), PatternCmd(3U), PostScriptView(3U), ReshapeTool(3U), Rubband(3I), Transformer(3I), VerticesComp(3U), Viewer(3U), align(3U), edit(3U), splines(3U)