vtkSplineWidget Class Reference

#include <vtkSplineWidget.h>

Inheritance diagram for vtkSplineWidget:

[legend]Collaboration diagram for vtkSplineWidget:

[legend]List of all members.

Detailed Description

3D widget for manipulating a spline

This 3D widget defines a spline that can be interactively placed in a scene. The spline has handles, the number of which can be changed, plus it can be picked on the spline itself to translate or rotate it in the scene. A nice feature of the object is that the vtkSplineWidget, like any 3D widget, will work with the current interactor style. That is, if vtkSplineWidget does not handle an event, then all other registered observers (including the interactor style) have an opportunity to process the event. Otherwise, the vtkSplineWidget will terminate the processing of the event that it handles.

To use this object, just invoke SetInteractor() with the argument of the method a vtkRenderWindowInteractor. You may also wish to invoke "PlaceWidget()" to initially position the widget. The interactor will act normally until the "i" key (for "interactor") is pressed, at which point the vtkSplineWidget will appear. (See superclass documentation for information about changing this behavior.) By grabbing one of the spherical handles (use the left mouse button), the spline can be oriented and stretched (the other handles remain fixed). By grabbing the spline itself (left or middle mouse button), the entire spline can be translated. (Translation can also be employed by using the "shift-left-mouse-button" combination inside of the widget.) Scaling (about the center of the spline) is achieved by using the right mouse button. By moving the mouse "up" the render window the spline will be made bigger; by moving "down" the render window the widget will be made smaller. Finally, holding the ctrl key down and then grabbing either a handle or the spline itself with the middle mouse button enalbles spinning of the widget about its center. Events that occur outside of the widget (i.e., no part of the widget is picked) are propagated to any other registered obsevers (such as the interaction style). Turn off the widget by pressing the "i" key again (or invoke the Off() method).

The vtkSplineWidget has several methods that can be used in conjunction with other VTK objects. The Set/GetResolution() methods control the number of subdivisions of the spline; the GetPolyData() method can be used to get the polygonal representation and can be used for things like seeding streamlines or probing other data sets. Typical usage of the widget is to make use of the StartInteractionEvent, InteractionEvent, and EndInteractionEvent events. The InteractionEvent is called on mouse motion; the other two events are called on button down and button up (either left or right button).

Some additional features of this class include the ability to control the properties of the widget. You can set the properties of the selected and unselected representations of the spline. For example, you can set the property for the handles and spline. In addition there are methods to constrain the spline so that it is aligned with a plane. Note that a simple ruler widget can be derived by setting the resolution to 1, the number of handles to 2, and calling the GetSummedLength method!

Thanks:: Thanks to Dean Inglis for developing and contributing this class.

Warning:: Note that handles and line can be picked even when they are "behind" other actors. This is an intended feature and not a bug.

See also:: vtk3DWidget vtkBoxWidget vtkLineWidget vtkPointWidget vtkSphereWidget vtkImagePlaneWidget vtkImplicitPlaneWidget vtkPlaneWidget

Events:: vtkCommand::DisableEvent vtkCommand::EndInteractionEvent vtkCommand::InteractionEvent vtkCommand::StartInteractionEvent vtkCommand::EnableEvent

Created by:

Inglis, Dean

CVS contributions (if > 5%):

Inglis, Dean (90%)
Martin, Ken (5%)

CVS logs (CVSweb):

.h (/Hybrid/vtkSplineWidget.h)
.cxx (/Hybrid/vtkSplineWidget.cxx)

Examples:: vtkSplineWidget (Examples)

Tests:: vtkSplineWidget (Tests)

Definition at line 120 of file vtkSplineWidget.h.

Public Types

typedef vtk3DWidget Superclass

Public Member Functions

virtual const char * GetClassName ()

virtual int IsA (const char *type)

void PrintSelf (ostream &os, vtkIndent indent)

void SetPlaneSource (vtkPlaneSource *plane)

virtual void SetProjectionNormal (int)

virtual int GetProjectionNormal ()

void SetProjectionNormalToXAxes ()

void SetProjectionNormalToYAxes ()

void SetProjectionNormalToZAxes ()

void SetProjectionNormalToOblique ()

void GetPolyData (vtkPolyData *pd)

double GetSummedLength ()

virtual void SetEnabled (int)

virtual void PlaceWidget (double bounds[6])

void PlaceWidget ()

void PlaceWidget (double xmin, double xmax, double ymin, double ymax, double zmin, double zmax)

virtual void SetProjectToPlane (int)

virtual int GetProjectToPlane ()

virtual void ProjectToPlaneOn ()

virtual void ProjectToPlaneOff ()

void SetProjectionPosition (double position)

virtual double GetProjectionPosition ()

virtual void SetHandleProperty (vtkProperty *)

virtual vtkProperty * GetHandleProperty ()

virtual void SetSelectedHandleProperty (vtkProperty *)

virtual vtkProperty * GetSelectedHandleProperty ()

virtual void SetLineProperty (vtkProperty *)

virtual vtkProperty * GetLineProperty ()

virtual void SetSelectedLineProperty (vtkProperty *)

virtual vtkProperty * GetSelectedLineProperty ()

virtual void SetNumberOfHandles (int npts)

virtual int GetNumberOfHandles ()

void SetResolution (int resolution)

virtual int GetResolution ()

void SetXSpline (vtkSpline *)

void SetYSpline (vtkSpline *)

void SetZSpline (vtkSpline *)

void SetHandlePosition (int handle, double x, double y, double z)

void SetHandlePosition (int handle, double xyz[3])

void GetHandlePosition (int handle, double xyz[3])

double * GetHandlePosition (int handle)

void SetClosed (int closed)

virtual int GetClosed ()

virtual void ClosedOn ()

virtual void ClosedOff ()

Static Public Member Functions

vtkSplineWidget * New ()

int IsTypeOf (const char *type)

vtkSplineWidget * SafeDownCast (vtkObject *o)

Protected Types

enum WidgetState {
Start = 0, Moving, Scaling, Spinning,
Outside
}

Protected Member Functions

vtkSplineWidget ()

~vtkSplineWidget ()

void OnLeftButtonDown ()

void OnLeftButtonUp ()

void OnMiddleButtonDown ()

void OnMiddleButtonUp ()

void OnRightButtonDown ()

void OnRightButtonUp ()

void OnMouseMove ()

void ProjectPointsToPlane ()

void ProjectPointsToOrthoPlane ()

void ProjectPointsToObliquePlane ()

vtkSpline * CreateDefaultSpline ()

void HighlightLine (int highlight)

void Initialize ()

int HighlightHandle (vtkProp *prop)

virtual void SizeHandles ()

void BuildRepresentation ()

void MovePoint (double *p1, double *p2)

void Scale (double *p1, double *p2, int X, int Y)

void Translate (double *p1, double *p2)

void Spin (double *p1, double *p2, double *vpn)

void CreateDefaultProperties ()

void CalculateCentroid ()

Static Protected Member Functions

void ProcessEvents (vtkObject *object, unsigned long event, void *clientdata, void *calldata)

Protected Attributes

int State

int ProjectionNormal

double ProjectionPosition

int ProjectToPlane

vtkPlaneSource * PlaneSource

vtkSpline * XSpline

vtkSpline * YSpline

vtkSpline * ZSpline

int NumberOfHandles

int Closed

double Offset

vtkActor * LineActor

vtkPolyDataMapper * LineMapper

vtkPolyData * LineData

int NumberOfSplinePoints

int Resolution

double * SplinePositions

vtkActor ** Handle

vtkPolyDataMapper ** HandleMapper

vtkSphereSource ** HandleGeometry

vtkCellPicker * HandlePicker

vtkCellPicker * LinePicker

vtkActor * CurrentHandle

int CurrentHandleIndex

vtkTransform * Transform

vtkProperty * HandleProperty

vtkProperty * SelectedHandleProperty

vtkProperty * LineProperty

vtkProperty * SelectedLineProperty

double Centroid [3]

Member Typedef Documentation

typedef vtk3DWidget vtkSplineWidget::Superclass

Reimplemented from vtk3DWidget.
Definition at line 126 of file vtkSplineWidget.h.

Member Enumeration Documentation

enum vtkSplineWidget::WidgetState [protected]

Enumeration values:

Start

Moving

Scaling

Spinning

Outside

Definition at line 256 of file vtkSplineWidget.h.

Constructor & Destructor Documentation

vtkSplineWidget::vtkSplineWidget ( ) [protected]

vtkSplineWidget::~vtkSplineWidget ( ) [protected]

Member Function Documentation

vtkSplineWidget* vtkSplineWidget::New ( ) [static]

Instantiate the object.
Reimplemented from vtkObject.

virtual const char* vtkSplineWidget::GetClassName ( ) [virtual]

Reimplemented from vtk3DWidget.

int vtkSplineWidget::IsTypeOf ( const char * type ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtk3DWidget.

virtual int vtkSplineWidget::IsA ( const char * type ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtk3DWidget.

vtkSplineWidget* vtkSplineWidget::SafeDownCast ( vtkObject * o ) [static]

Reimplemented from vtk3DWidget.

void vtkSplineWidget::PrintSelf ( ostream & os,

vtkIndent indent

) [virtual]

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from vtk3DWidget.

virtual void vtkSplineWidget::SetEnabled ( int ) [virtual]

Methods that satisfy the superclass' API.
Reimplemented from vtkInteractorObserver.

virtual void vtkSplineWidget::PlaceWidget ( double bounds[6] ) [virtual]

Methods that satisfy the superclass' API.
Implements vtk3DWidget.

void vtkSplineWidget::PlaceWidget ( ) [inline, virtual]

Methods that satisfy the superclass' API.
Reimplemented from vtk3DWidget.
Definition at line 133 of file vtkSplineWidget.h.

void vtkSplineWidget::PlaceWidget ( double xmin,

double xmax,

double ymin,

double ymax,

double zmin,

double zmax

) [inline, virtual]

Methods that satisfy the superclass' API.
Reimplemented from vtk3DWidget.
Definition at line 135 of file vtkSplineWidget.h.

virtual void vtkSplineWidget::SetProjectToPlane ( int ) [virtual]

Force the spline widget to be projected onto one of the orthogonal planes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the spline to the plane if it is orginally not aligned. The normal in SetProjectionNormal is 0,1,2 for YZ,XZ,XY planes respectively and 3 for arbitrary oblique planes when the widget is tied to a vtkPlaneSource.

virtual int vtkSplineWidget::GetProjectToPlane ( ) [virtual]

Force the spline widget to be projected onto one of the orthogonal planes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the spline to the plane if it is orginally not aligned. The normal in SetProjectionNormal is 0,1,2 for YZ,XZ,XY planes respectively and 3 for arbitrary oblique planes when the widget is tied to a vtkPlaneSource.

virtual void vtkSplineWidget::ProjectToPlaneOn ( ) [virtual]

Force the spline widget to be projected onto one of the orthogonal planes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the spline to the plane if it is orginally not aligned. The normal in SetProjectionNormal is 0,1,2 for YZ,XZ,XY planes respectively and 3 for arbitrary oblique planes when the widget is tied to a vtkPlaneSource.

virtual void vtkSplineWidget::ProjectToPlaneOff ( ) [virtual]

Force the spline widget to be projected onto one of the orthogonal planes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the spline to the plane if it is orginally not aligned. The normal in SetProjectionNormal is 0,1,2 for YZ,XZ,XY planes respectively and 3 for arbitrary oblique planes when the widget is tied to a vtkPlaneSource.

void vtkSplineWidget::SetPlaneSource ( vtkPlaneSource * plane )

Set up a reference to a vtkPlaneSource that could be from another widget object, e.g. a vtkPolyDataSourceWidget.

virtual void vtkSplineWidget::SetProjectionNormal ( int ) [virtual]

virtual int vtkSplineWidget::GetProjectionNormal ( ) [virtual]

void vtkSplineWidget::SetProjectionNormalToXAxes ( ) [inline]

Definition at line 158 of file vtkSplineWidget.h.

void vtkSplineWidget::SetProjectionNormalToYAxes ( ) [inline]

Definition at line 160 of file vtkSplineWidget.h.

void vtkSplineWidget::SetProjectionNormalToZAxes ( ) [inline]

Definition at line 162 of file vtkSplineWidget.h.

void vtkSplineWidget::SetProjectionNormalToOblique ( ) [inline]

Definition at line 164 of file vtkSplineWidget.h.

void vtkSplineWidget::SetProjectionPosition ( double position )

Set the position of spline handles and points in terms of a plane's position. i.e., if ProjectionNormal is 0, all of the x-coordinate values of the points are set to position. Any value can be passed (and is ignored) to update the spline points when Projection normal is set to 3 for arbritrary plane orientations.

virtual double vtkSplineWidget::GetProjectionPosition ( ) [virtual]

Set the position of spline handles and points in terms of a plane's position. i.e., if ProjectionNormal is 0, all of the x-coordinate values of the points are set to position. Any value can be passed (and is ignored) to update the spline points when Projection normal is set to 3 for arbritrary plane orientations.

void vtkSplineWidget::GetPolyData ( vtkPolyData * pd )

Grab the polydata (including points) that defines the spline. The polydata consists of the NumberOfSplinePoints points. These point values are guaranteed to be up-to-date when either the InteractionEvent or EndInteraction events are invoked. The user provides the vtkPolyData and the points and polyline are added to it.

virtual void vtkSplineWidget::SetHandleProperty ( vtkProperty * ) [virtual]

Set/Get the handle properties (the little balls are the handles). The properties of the handles when selected and normal can be manipulated.

virtual vtkProperty* vtkSplineWidget::GetHandleProperty ( ) [virtual]

Set/Get the handle properties (the little balls are the handles). The properties of the handles when selected and normal can be manipulated.

virtual void vtkSplineWidget::SetSelectedHandleProperty ( vtkProperty * ) [virtual]

Set/Get the handle properties (the little balls are the handles). The properties of the handles when selected and normal can be manipulated.

virtual vtkProperty* vtkSplineWidget::GetSelectedHandleProperty ( ) [virtual]

Set/Get the handle properties (the little balls are the handles). The properties of the handles when selected and normal can be manipulated.

virtual void vtkSplineWidget::SetLineProperty ( vtkProperty * ) [virtual]

Set/Get the line properties. The properties of the line when selected and unselected can be manipulated.

virtual vtkProperty* vtkSplineWidget::GetLineProperty ( ) [virtual]

Set/Get the line properties. The properties of the line when selected and unselected can be manipulated.

virtual void vtkSplineWidget::SetSelectedLineProperty ( vtkProperty * ) [virtual]

Set/Get the line properties. The properties of the line when selected and unselected can be manipulated.

virtual vtkProperty* vtkSplineWidget::GetSelectedLineProperty ( ) [virtual]

Set/Get the line properties. The properties of the line when selected and unselected can be manipulated.

virtual void vtkSplineWidget::SetNumberOfHandles ( int npts ) [virtual]

Set/Get the number of handles for this widget.

virtual int vtkSplineWidget::GetNumberOfHandles ( ) [virtual]

Set/Get the number of handles for this widget.

void vtkSplineWidget::SetResolution ( int resolution )

Set/Get the number of line segments representing the spline for this widget.

virtual int vtkSplineWidget::GetResolution ( ) [virtual]

Set/Get the number of line segments representing the spline for this widget.

void vtkSplineWidget::SetXSpline ( vtkSpline * )

Set the spline objects. The user can supply one of currently two types of spline: vtkCardinalSpline, vtkKochanekSpline. WARNING: The widget does not enforce internal consistency so that all three are of the same type.

void vtkSplineWidget::SetYSpline ( vtkSpline * )

Set the spline objects. The user can supply one of currently two types of spline: vtkCardinalSpline, vtkKochanekSpline. WARNING: The widget does not enforce internal consistency so that all three are of the same type.

void vtkSplineWidget::SetZSpline ( vtkSpline * )

Set the spline objects. The user can supply one of currently two types of spline: vtkCardinalSpline, vtkKochanekSpline. WARNING: The widget does not enforce internal consistency so that all three are of the same type.

void vtkSplineWidget::SetHandlePosition ( int handle,

double x,

double y,

double z

)

Set/Get the position of the spline handles. Call GetNumberOfHandles to determine the valid range of handle indices.

void vtkSplineWidget::SetHandlePosition ( int handle,

double xyz[3]

)

Set/Get the position of the spline handles. Call GetNumberOfHandles to determine the valid range of handle indices.

void vtkSplineWidget::GetHandlePosition ( int handle,

double xyz[3]

)

Set/Get the position of the spline handles. Call GetNumberOfHandles to determine the valid range of handle indices.

double* vtkSplineWidget::GetHandlePosition ( int handle )

Set/Get the position of the spline handles. Call GetNumberOfHandles to determine the valid range of handle indices.

void vtkSplineWidget::SetClosed ( int closed )

Control whether the spline is open or closed. A closed spline forms a continuous loop: the first and last points are the same, and derivatives are continuous. This method enforces consistency with user supplied subclasses of vtkSpline.

virtual int vtkSplineWidget::GetClosed ( ) [virtual]

Control whether the spline is open or closed. A closed spline forms a continuous loop: the first and last points are the same, and derivatives are continuous. This method enforces consistency with user supplied subclasses of vtkSpline.

virtual void vtkSplineWidget::ClosedOn ( ) [virtual]

Control whether the spline is open or closed. A closed spline forms a continuous loop: the first and last points are the same, and derivatives are continuous. This method enforces consistency with user supplied subclasses of vtkSpline.

virtual void vtkSplineWidget::ClosedOff ( ) [virtual]

Control whether the spline is open or closed. A closed spline forms a continuous loop: the first and last points are the same, and derivatives are continuous. This method enforces consistency with user supplied subclasses of vtkSpline.

double vtkSplineWidget::GetSummedLength ( )

Get the approximate vs. the true arc length of the spline. Calculated as the summed lengths of the individual straight line segments. Use SetResolution to control the accuracy.

void vtkSplineWidget::ProcessEvents ( vtkObject * object,

unsigned long event,

void * clientdata,

void * calldata

) [static, protected]

Handles the char widget activation event. Also handles the delete event.
Reimplemented from vtkInteractorObserver.

void vtkSplineWidget::OnLeftButtonDown ( ) [protected]

void vtkSplineWidget::OnLeftButtonUp ( ) [protected]

void vtkSplineWidget::OnMiddleButtonDown ( ) [protected]

void vtkSplineWidget::OnMiddleButtonUp ( ) [protected]

void vtkSplineWidget::OnRightButtonDown ( ) [protected]

void vtkSplineWidget::OnRightButtonUp ( ) [protected]

void vtkSplineWidget::OnMouseMove ( ) [protected]

void vtkSplineWidget::ProjectPointsToPlane ( ) [protected]

void vtkSplineWidget::ProjectPointsToOrthoPlane ( ) [protected]

void vtkSplineWidget::ProjectPointsToObliquePlane ( ) [protected]

vtkSpline* vtkSplineWidget::CreateDefaultSpline ( ) [protected]

void vtkSplineWidget::HighlightLine ( int highlight ) [protected]

void vtkSplineWidget::Initialize ( ) [protected]

int vtkSplineWidget::HighlightHandle ( vtkProp * prop ) [protected]

virtual void vtkSplineWidget::SizeHandles ( ) [protected, virtual]

Reimplemented from vtk3DWidget.

void vtkSplineWidget::BuildRepresentation ( ) [protected]

void vtkSplineWidget::MovePoint ( double * p1,

double * p2

) [protected]

void vtkSplineWidget::Scale ( double * p1,

double * p2,

int X,

int Y

) [protected]

void vtkSplineWidget::Translate ( double * p1,

double * p2

) [protected]

void vtkSplineWidget::Spin ( double * p1,

double * p2,

double * vpn

) [protected]

void vtkSplineWidget::CreateDefaultProperties ( ) [protected]

void vtkSplineWidget::CalculateCentroid ( ) [protected]

Member Data Documentation

int vtkSplineWidget::State [protected]

Definition at line 255 of file vtkSplineWidget.h.

int vtkSplineWidget::ProjectionNormal [protected]

Definition at line 282 of file vtkSplineWidget.h.

double vtkSplineWidget::ProjectionPosition [protected]

Definition at line 283 of file vtkSplineWidget.h.

int vtkSplineWidget::ProjectToPlane [protected]

Definition at line 284 of file vtkSplineWidget.h.

vtkPlaneSource* vtkSplineWidget::PlaneSource [protected]

Definition at line 285 of file vtkSplineWidget.h.

vtkSpline* vtkSplineWidget::XSpline [protected]

Definition at line 293 of file vtkSplineWidget.h.

vtkSpline* vtkSplineWidget::YSpline [protected]

Definition at line 294 of file vtkSplineWidget.h.

vtkSpline* vtkSplineWidget::ZSpline [protected]

Definition at line 295 of file vtkSplineWidget.h.

int vtkSplineWidget::NumberOfHandles [protected]

Definition at line 296 of file vtkSplineWidget.h.

int vtkSplineWidget::Closed [protected]

Definition at line 298 of file vtkSplineWidget.h.

double vtkSplineWidget::Offset [protected]

Definition at line 299 of file vtkSplineWidget.h.

vtkActor* vtkSplineWidget::LineActor [protected]

Definition at line 302 of file vtkSplineWidget.h.

vtkPolyDataMapper* vtkSplineWidget::LineMapper [protected]

Definition at line 303 of file vtkSplineWidget.h.

vtkPolyData* vtkSplineWidget::LineData [protected]

Definition at line 304 of file vtkSplineWidget.h.

int vtkSplineWidget::NumberOfSplinePoints [protected]

Definition at line 306 of file vtkSplineWidget.h.

int vtkSplineWidget::Resolution [protected]

Definition at line 307 of file vtkSplineWidget.h.

double* vtkSplineWidget::SplinePositions [protected]

Definition at line 308 of file vtkSplineWidget.h.

vtkActor** vtkSplineWidget::Handle [protected]

Definition at line 311 of file vtkSplineWidget.h.

vtkPolyDataMapper** vtkSplineWidget::HandleMapper [protected]

Definition at line 312 of file vtkSplineWidget.h.

vtkSphereSource** vtkSplineWidget::HandleGeometry [protected]

Definition at line 313 of file vtkSplineWidget.h.

vtkCellPicker* vtkSplineWidget::HandlePicker [protected]

Definition at line 320 of file vtkSplineWidget.h.

vtkCellPicker* vtkSplineWidget::LinePicker [protected]

Definition at line 321 of file vtkSplineWidget.h.

vtkActor* vtkSplineWidget::CurrentHandle [protected]

Definition at line 322 of file vtkSplineWidget.h.

int vtkSplineWidget::CurrentHandleIndex [protected]

Definition at line 323 of file vtkSplineWidget.h.

vtkTransform* vtkSplineWidget::Transform [protected]

Definition at line 332 of file vtkSplineWidget.h.

vtkProperty* vtkSplineWidget::HandleProperty [protected]

Definition at line 336 of file vtkSplineWidget.h.

vtkProperty* vtkSplineWidget::SelectedHandleProperty [protected]

Definition at line 337 of file vtkSplineWidget.h.

vtkProperty* vtkSplineWidget::LineProperty [protected]

Definition at line 338 of file vtkSplineWidget.h.

vtkProperty* vtkSplineWidget::SelectedLineProperty [protected]

Definition at line 339 of file vtkSplineWidget.h.

double vtkSplineWidget::Centroid[3] [protected]

Definition at line 343 of file vtkSplineWidget.h.

The documentation for this class was generated from the following file:

dox/Hybrid/vtkSplineWidget.h


Public Types
typedef vtk3DWidget	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	SetPlaneSource (vtkPlaneSource *plane)
virtual void	SetProjectionNormal (int)
virtual int	GetProjectionNormal ()
void	SetProjectionNormalToXAxes ()
void	SetProjectionNormalToYAxes ()
void	SetProjectionNormalToZAxes ()
void	SetProjectionNormalToOblique ()
void	GetPolyData (vtkPolyData *pd)
double	GetSummedLength ()

virtual void	SetEnabled (int)
virtual void	PlaceWidget (double bounds[6])
void	PlaceWidget ()
void	PlaceWidget (double xmin, double xmax, double ymin, double ymax, double zmin, double zmax)

virtual void	SetProjectToPlane (int)
virtual int	GetProjectToPlane ()
virtual void	ProjectToPlaneOn ()
virtual void	ProjectToPlaneOff ()

void	SetProjectionPosition (double position)
virtual double	GetProjectionPosition ()

virtual void	SetHandleProperty (vtkProperty *)
virtual vtkProperty *	GetHandleProperty ()
virtual void	SetSelectedHandleProperty (vtkProperty *)
virtual vtkProperty *	GetSelectedHandleProperty ()

virtual void	SetLineProperty (vtkProperty *)
virtual vtkProperty *	GetLineProperty ()
virtual void	SetSelectedLineProperty (vtkProperty *)
virtual vtkProperty *	GetSelectedLineProperty ()

virtual void	SetNumberOfHandles (int npts)
virtual int	GetNumberOfHandles ()

void	SetResolution (int resolution)
virtual int	GetResolution ()

void	SetXSpline (vtkSpline *)
void	SetYSpline (vtkSpline *)
void	SetZSpline (vtkSpline *)

void	SetHandlePosition (int handle, double x, double y, double z)
void	SetHandlePosition (int handle, double xyz[3])
void	GetHandlePosition (int handle, double xyz[3])
double *	GetHandlePosition (int handle)

void	SetClosed (int closed)
virtual int	GetClosed ()
virtual void	ClosedOn ()
virtual void	ClosedOff ()
Static Public Member Functions
vtkSplineWidget *	New ()
int	IsTypeOf (const char *type)
vtkSplineWidget *	SafeDownCast (vtkObject *o)
Protected Types
enum	WidgetState { Start = 0, Moving, Scaling, Spinning, Outside }
Protected Member Functions
	vtkSplineWidget ()
	~vtkSplineWidget ()
void	OnLeftButtonDown ()
void	OnLeftButtonUp ()
void	OnMiddleButtonDown ()
void	OnMiddleButtonUp ()
void	OnRightButtonDown ()
void	OnRightButtonUp ()
void	OnMouseMove ()
void	ProjectPointsToPlane ()
void	ProjectPointsToOrthoPlane ()
void	ProjectPointsToObliquePlane ()
vtkSpline *	CreateDefaultSpline ()
void	HighlightLine (int highlight)
void	Initialize ()
int	HighlightHandle (vtkProp *prop)
virtual void	SizeHandles ()
void	BuildRepresentation ()
void	MovePoint (double p1, double p2)
void	Scale (double p1, double p2, int X, int Y)
void	Translate (double p1, double p2)
void	Spin (double p1, double p2, double *vpn)
void	CreateDefaultProperties ()
void	CalculateCentroid ()
Static Protected Member Functions
void	ProcessEvents (vtkObject object, unsigned long event, void clientdata, void *calldata)
Protected Attributes
int	State
int	ProjectionNormal
double	ProjectionPosition
int	ProjectToPlane
vtkPlaneSource *	PlaneSource
vtkSpline *	XSpline
vtkSpline *	YSpline
vtkSpline *	ZSpline
int	NumberOfHandles
int	Closed
double	Offset
vtkActor *	LineActor
vtkPolyDataMapper *	LineMapper
vtkPolyData *	LineData
int	NumberOfSplinePoints
int	Resolution
double *	SplinePositions
vtkActor **	Handle
vtkPolyDataMapper **	HandleMapper
vtkSphereSource **	HandleGeometry
vtkCellPicker *	HandlePicker
vtkCellPicker *	LinePicker
vtkActor *	CurrentHandle
int	CurrentHandleIndex
vtkTransform *	Transform
vtkProperty *	HandleProperty
vtkProperty *	SelectedHandleProperty
vtkProperty *	LineProperty
vtkProperty *	SelectedLineProperty
double	Centroid [3]