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)