vtkSphereWidget Class Reference

#include <vtkSphereWidget.h>

Inheritance diagram for vtkSphereWidget:

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Collaboration diagram for vtkSphereWidget:

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List of all members.


Detailed Description

3D widget for manipulating a sphere

This 3D widget defines a sphere that can be interactively placed in a scene.

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 vtkSphereWidget will appear. (See superclass documentation for information about changing this behavior.) 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 vtkSphereWidget has several methods that can be used in conjunction with other VTK objects. The Set/GetThetaResolution() and Set/GetPhiResolution() methods control the number of subdivisions of the sphere in the theta and phi directions; the GetPolyData() method can be used to get the polygonal representation and can be used for things like seeding streamlines. The GetSphere() method returns a sphere implicit function that can be used for cutting and clipping. 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 (any mouse 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 sphere.

Warning:
Note that the sphere can be picked even when they are "behind" other actors. This is an intended feature and not a bug.
See also:
vtk3DWidget vtkLineWidget vtkBoxWidget vtkPlaneWidget
Events:
vtkCommand::DisableEvent vtkCommand::EndInteractionEvent vtkCommand::InteractionEvent vtkCommand::StartInteractionEvent vtkCommand::EnableEvent
Examples:
vtkSphereWidget (Examples)

Definition at line 81 of file vtkSphereWidget.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 GetPolyData (vtkPolyData *pd)
void GetSphere (vtkSphere *sphere)
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 SetRepresentation (int)
virtual int GetRepresentation ()
void SetRepresentationToOff ()
void SetRepresentationToWireframe ()
void SetRepresentationToSurface ()
void SetThetaResolution (int r)
int GetThetaResolution ()
void SetPhiResolution (int r)
int GetPhiResolution ()
void SetRadius (double r)
double GetRadius ()
void SetCenter (double x, double y, double z)
void SetCenter (double x[3])
double * GetCenter ()
void GetCenter (double xyz[3])
virtual void SetTranslation (int)
virtual int GetTranslation ()
virtual void TranslationOn ()
virtual void TranslationOff ()
virtual void SetScale (int)
virtual int GetScale ()
virtual void ScaleOn ()
virtual void ScaleOff ()
virtual void SetHandleVisibility (int)
virtual int GetHandleVisibility ()
virtual void HandleVisibilityOn ()
virtual void HandleVisibilityOff ()
virtual void SetHandleDirection (double, double, double)
virtual void SetHandleDirection (double[3])
virtual double * GetHandleDirection ()
virtual void GetHandleDirection (double &, double &, double &)
virtual void GetHandleDirection (double[3])
virtual double * GetHandlePosition ()
virtual void GetHandlePosition (double &, double &, double &)
virtual void GetHandlePosition (double[3])
virtual vtkPropertyGetSphereProperty ()
virtual vtkPropertyGetSelectedSphereProperty ()
virtual vtkPropertyGetHandleProperty ()
virtual vtkPropertyGetSelectedHandleProperty ()

Static Public Member Functions

static vtkSphereWidgetNew ()
static int IsTypeOf (const char *type)
static vtkSphereWidgetSafeDownCast (vtkObject *o)

Protected Types

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

Protected Member Functions

 vtkSphereWidget ()
 ~vtkSphereWidget ()
void OnLeftButtonDown ()
void OnLeftButtonUp ()
void OnRightButtonDown ()
void OnRightButtonUp ()
void OnMouseMove ()
void HighlightSphere (int highlight)
void SelectRepresentation ()
void Translate (double *p1, double *p2)
void ScaleSphere (double *p1, double *p2, int X, int Y)
void MoveHandle (double *p1, double *p2, int X, int Y)
void PlaceHandle (double *center, double radius)
void CreateDefaultProperties ()
void HighlightHandle (int)
virtual void SizeHandles ()

Static Protected Member Functions

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

Protected Attributes

int State
vtkActorSphereActor
vtkPolyDataMapperSphereMapper
vtkSphereSourceSphereSource
int Representation
vtkCellPickerPicker
int Translation
int Scale
vtkPropertySphereProperty
vtkPropertySelectedSphereProperty
vtkPropertyHandleProperty
vtkPropertySelectedHandleProperty
vtkActorHandleActor
vtkPolyDataMapperHandleMapper
vtkSphereSourceHandleSource
int HandleVisibility
double HandleDirection [3]
double HandlePosition [3]

Member Typedef Documentation

Reimplemented from vtk3DWidget.

Definition at line 87 of file vtkSphereWidget.h.


Member Enumeration Documentation

enum vtkSphereWidget::WidgetState [protected]

Enumerator:
Start 
Moving 
Scaling 
Positioning 
Outside 

Definition at line 229 of file vtkSphereWidget.h.


Constructor & Destructor Documentation

vtkSphereWidget::vtkSphereWidget (  )  [protected]

vtkSphereWidget::~vtkSphereWidget (  )  [protected]


Member Function Documentation

static vtkSphereWidget* vtkSphereWidget::New (  )  [static]

Instantiate the object.

Reimplemented from vtkObject.

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

Reimplemented from vtk3DWidget.

static int vtkSphereWidget::IsTypeOf ( const char *  name  )  [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 vtkSphereWidget::IsA ( const char *  name  )  [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.

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

Reimplemented from vtk3DWidget.

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

Methods that satisfy the superclass' API.

Reimplemented from vtkInteractorObserver.

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

Methods that satisfy the superclass' API.

Implements vtk3DWidget.

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

Methods that satisfy the superclass' API.

Reimplemented from vtk3DWidget.

Definition at line 94 of file vtkSphereWidget.h.

void vtkSphereWidget::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 96 of file vtkSphereWidget.h.

virtual void vtkSphereWidget::SetRepresentation ( int   )  [virtual]

Set the representation of the sphere. Different representations are useful depending on the application.

virtual int vtkSphereWidget::GetRepresentation (  )  [virtual]

Set the representation of the sphere. Different representations are useful depending on the application.

void vtkSphereWidget::SetRepresentationToOff (  )  [inline]

Set the representation of the sphere. Different representations are useful depending on the application.

Definition at line 106 of file vtkSphereWidget.h.

void vtkSphereWidget::SetRepresentationToWireframe (  )  [inline]

Set the representation of the sphere. Different representations are useful depending on the application.

Definition at line 108 of file vtkSphereWidget.h.

void vtkSphereWidget::SetRepresentationToSurface (  )  [inline]

Set the representation of the sphere. Different representations are useful depending on the application.

Definition at line 110 of file vtkSphereWidget.h.

void vtkSphereWidget::SetThetaResolution ( int  r  )  [inline]

Set/Get the resolution of the sphere in the Theta direction.

Definition at line 116 of file vtkSphereWidget.h.

int vtkSphereWidget::GetThetaResolution (  )  [inline]

Set/Get the resolution of the sphere in the Theta direction.

Definition at line 118 of file vtkSphereWidget.h.

void vtkSphereWidget::SetPhiResolution ( int  r  )  [inline]

Set/Get the resolution of the sphere in the Phi direction.

Definition at line 124 of file vtkSphereWidget.h.

int vtkSphereWidget::GetPhiResolution (  )  [inline]

Set/Get the resolution of the sphere in the Phi direction.

Definition at line 126 of file vtkSphereWidget.h.

void vtkSphereWidget::SetRadius ( double  r  )  [inline]

Set/Get the radius of sphere. Default is .5.

Definition at line 132 of file vtkSphereWidget.h.

double vtkSphereWidget::GetRadius (  )  [inline]

Set/Get the radius of sphere. Default is .5.

Definition at line 140 of file vtkSphereWidget.h.

void vtkSphereWidget::SetCenter ( double  x,
double  y,
double  z 
) [inline]

Set/Get the center of the sphere.

Definition at line 146 of file vtkSphereWidget.h.

void vtkSphereWidget::SetCenter ( double  x[3]  )  [inline]

Set/Get the center of the sphere.

Definition at line 150 of file vtkSphereWidget.h.

double* vtkSphereWidget::GetCenter (  )  [inline]

Set/Get the center of the sphere.

Definition at line 154 of file vtkSphereWidget.h.

void vtkSphereWidget::GetCenter ( double  xyz[3]  )  [inline]

Set/Get the center of the sphere.

Definition at line 156 of file vtkSphereWidget.h.

virtual void vtkSphereWidget::SetTranslation ( int   )  [virtual]

Enable translation and scaling of the widget. By default, the widget can be translated and rotated.

virtual int vtkSphereWidget::GetTranslation (  )  [virtual]

Enable translation and scaling of the widget. By default, the widget can be translated and rotated.

virtual void vtkSphereWidget::TranslationOn (  )  [virtual]

Enable translation and scaling of the widget. By default, the widget can be translated and rotated.

virtual void vtkSphereWidget::TranslationOff (  )  [virtual]

Enable translation and scaling of the widget. By default, the widget can be translated and rotated.

virtual void vtkSphereWidget::SetScale ( int   )  [virtual]

Enable translation and scaling of the widget. By default, the widget can be translated and rotated.

virtual int vtkSphereWidget::GetScale (  )  [virtual]

Enable translation and scaling of the widget. By default, the widget can be translated and rotated.

virtual void vtkSphereWidget::ScaleOn (  )  [virtual]

Enable translation and scaling of the widget. By default, the widget can be translated and rotated.

virtual void vtkSphereWidget::ScaleOff (  )  [virtual]

Enable translation and scaling of the widget. By default, the widget can be translated and rotated.

virtual void vtkSphereWidget::SetHandleVisibility ( int   )  [virtual]

The handle sits on the surface of the sphere and may be moved around the surface by picking (left mouse) and then moving. The position of the handle can be retrieved, this is useful for positioning cameras and lights. By default, the handle is turned off.

virtual int vtkSphereWidget::GetHandleVisibility (  )  [virtual]

The handle sits on the surface of the sphere and may be moved around the surface by picking (left mouse) and then moving. The position of the handle can be retrieved, this is useful for positioning cameras and lights. By default, the handle is turned off.

virtual void vtkSphereWidget::HandleVisibilityOn (  )  [virtual]

The handle sits on the surface of the sphere and may be moved around the surface by picking (left mouse) and then moving. The position of the handle can be retrieved, this is useful for positioning cameras and lights. By default, the handle is turned off.

virtual void vtkSphereWidget::HandleVisibilityOff (  )  [virtual]

The handle sits on the surface of the sphere and may be moved around the surface by picking (left mouse) and then moving. The position of the handle can be retrieved, this is useful for positioning cameras and lights. By default, the handle is turned off.

virtual void vtkSphereWidget::SetHandleDirection ( double  ,
double  ,
double   
) [virtual]

Set/Get the direction vector of the handle relative to the center of the sphere. The direction of the handle is from the sphere center to the handle position.

virtual void vtkSphereWidget::SetHandleDirection ( double  [3]  )  [virtual]

Set/Get the direction vector of the handle relative to the center of the sphere. The direction of the handle is from the sphere center to the handle position.

virtual double* vtkSphereWidget::GetHandleDirection (  )  [virtual]

Set/Get the direction vector of the handle relative to the center of the sphere. The direction of the handle is from the sphere center to the handle position.

virtual void vtkSphereWidget::GetHandleDirection ( double &  ,
double &  ,
double &   
) [virtual]

Set/Get the direction vector of the handle relative to the center of the sphere. The direction of the handle is from the sphere center to the handle position.

virtual void vtkSphereWidget::GetHandleDirection ( double  [3]  )  [virtual]

Set/Get the direction vector of the handle relative to the center of the sphere. The direction of the handle is from the sphere center to the handle position.

virtual double* vtkSphereWidget::GetHandlePosition (  )  [virtual]

Get the position of the handle.

virtual void vtkSphereWidget::GetHandlePosition ( double &  ,
double &  ,
double &   
) [virtual]

Get the position of the handle.

virtual void vtkSphereWidget::GetHandlePosition ( double  [3]  )  [virtual]

Get the position of the handle.

void vtkSphereWidget::GetPolyData ( vtkPolyData pd  ) 

Grab the polydata (including points) that defines the sphere. The polydata consists of n+1 points, where n is the resolution of the sphere. 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 polysphere are added to it.

void vtkSphereWidget::GetSphere ( vtkSphere sphere  ) 

Get the spherical implicit function defined by this widget. Note that vtkSphere is a subclass of vtkImplicitFunction, meaning that it can be used by a variety of filters to perform clipping, cutting, and selection of data.

virtual vtkProperty* vtkSphereWidget::GetSphereProperty (  )  [virtual]

Get the sphere properties. The properties of the sphere when selected and unselected can be manipulated.

virtual vtkProperty* vtkSphereWidget::GetSelectedSphereProperty (  )  [virtual]

Get the sphere properties. The properties of the sphere when selected and unselected can be manipulated.

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

Get the handle properties (the little ball on the sphere is the handle). The properties of the handle when selected and unselected can be manipulated.

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

Get the handle properties (the little ball on the sphere is the handle). The properties of the handle when selected and unselected can be manipulated.

static void vtkSphereWidget::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 vtkSphereWidget::OnLeftButtonDown (  )  [protected]

void vtkSphereWidget::OnLeftButtonUp (  )  [protected]

void vtkSphereWidget::OnRightButtonDown (  )  [protected]

void vtkSphereWidget::OnRightButtonUp (  )  [protected]

void vtkSphereWidget::OnMouseMove (  )  [protected]

void vtkSphereWidget::HighlightSphere ( int  highlight  )  [protected]

void vtkSphereWidget::SelectRepresentation (  )  [protected]

void vtkSphereWidget::Translate ( double *  p1,
double *  p2 
) [protected]

void vtkSphereWidget::ScaleSphere ( double *  p1,
double *  p2,
int  X,
int  Y 
) [protected]

void vtkSphereWidget::MoveHandle ( double *  p1,
double *  p2,
int  X,
int  Y 
) [protected]

void vtkSphereWidget::PlaceHandle ( double *  center,
double  radius 
) [protected]

void vtkSphereWidget::CreateDefaultProperties (  )  [protected]

void vtkSphereWidget::HighlightHandle ( int   )  [protected]

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

Reimplemented from vtk3DWidget.


Member Data Documentation

int vtkSphereWidget::State [protected]

Definition at line 228 of file vtkSphereWidget.h.

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Definition at line 260 of file vtkSphereWidget.h.

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Definition at line 266 of file vtkSphereWidget.h.

int vtkSphereWidget::Scale [protected]

Definition at line 267 of file vtkSphereWidget.h.

Definition at line 275 of file vtkSphereWidget.h.

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Definition at line 286 of file vtkSphereWidget.h.

double vtkSphereWidget::HandleDirection[3] [protected]

Definition at line 287 of file vtkSphereWidget.h.

double vtkSphereWidget::HandlePosition[3] [protected]

Definition at line 288 of file vtkSphereWidget.h.


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

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