vtkPlaneWidget Class Reference

#include <vtkPlaneWidget.h>

Inheritance diagram for vtkPlaneWidget:

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Collaboration diagram for vtkPlaneWidget:

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List of all members.


Detailed Description

3D widget for manipulating a finite plane

This 3D widget defines a finite (bounded) plane that can be interactively placed in a scene. The plane has four handles (at its corner vertices), a normal vector, and the plane itself. The handles are used to resize the plane; the normal vector to rotate it, and the plane can be picked and translated. Selecting the plane while pressing CTRL makes it spin around the normal. A nice feature of the object is that the vtkPlaneWidget, like any 3D widget, will work with the current interactor style. That is, if vtkPlaneWidget does not handle an event, then all other registered observers (including the interactor style) have an opportunity to process the event. Otherwise, the vtkPlaneWidget 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. If the "i" key (for "interactor") is pressed, the vtkPlaneWidget will appear. (See superclass documentation for information about changing this behavior.) By grabbing the one of the four handles (use the left mouse button), the plane can be resized. By grabbing the plane itself, the entire plane can be arbitrarily translated. Pressing CTRL while grabbing the plane will spin the plane around the normal. If you select the normal vector, the plane can be arbitrarily rotated. Selecting any part of the widget with the middle mouse button enables translation of the plane along its normal. (Once selected using middle mouse, moving the mouse in the direction of the normal translates the plane in the direction of the normal; moving in the direction opposite the normal translates the plane in the direction opposite the normal.) Scaling (about the center of the plane) is achieved by using the right mouse button. By moving the mouse "up" the render window the plane will be made bigger; by moving "down" the render window the widget will be made smaller. 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 vtkPlaneWidget has several methods that can be used in conjunction with other VTK objects. The Set/GetResolution() methods control the number of subdivisions of the plane; the GetPolyData() method can be used to get the polygonal representation and can be used for things like seeding stream lines. GetPlane() can be used to update a vtkPlane implicit function. 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 plane. For example, you can set the property for the handles and plane. In addition there are methods to constrain the plane so that it is perpendicular to the x-y-z axes.

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

Definition at line 111 of file vtkPlaneWidget.h.


Public Types

typedef vtkPolyDataSourceWidget 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 GetPlane (vtkPlane *plane)
vtkPolyDataAlgorithmGetPolyDataAlgorithm ()
void UpdatePlacement (void)
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)
void SetResolution (int r)
int GetResolution ()
void SetOrigin (double x, double y, double z)
void SetOrigin (double x[3])
double * GetOrigin ()
void GetOrigin (double xyz[3])
void SetPoint1 (double x, double y, double z)
void SetPoint1 (double x[3])
double * GetPoint1 ()
void GetPoint1 (double xyz[3])
void SetPoint2 (double x, double y, double z)
void SetPoint2 (double x[3])
double * GetPoint2 ()
void GetPoint2 (double xyz[3])
void SetCenter (double x, double y, double z)
void SetCenter (double x[3])
double * GetCenter ()
void GetCenter (double xyz[3])
void SetNormal (double x, double y, double z)
void SetNormal (double x[3])
double * GetNormal ()
void GetNormal (double xyz[3])
virtual void SetRepresentation (int)
virtual int GetRepresentation ()
void SetRepresentationToOff ()
void SetRepresentationToOutline ()
void SetRepresentationToWireframe ()
void SetRepresentationToSurface ()
virtual void SetNormalToXAxis (int)
virtual int GetNormalToXAxis ()
virtual void NormalToXAxisOn ()
virtual void NormalToXAxisOff ()
virtual void SetNormalToYAxis (int)
virtual int GetNormalToYAxis ()
virtual void NormalToYAxisOn ()
virtual void NormalToYAxisOff ()
virtual void SetNormalToZAxis (int)
virtual int GetNormalToZAxis ()
virtual void NormalToZAxisOn ()
virtual void NormalToZAxisOff ()
virtual vtkPropertyGetHandleProperty ()
virtual vtkPropertyGetSelectedHandleProperty ()
virtual void SetPlaneProperty (vtkProperty *)
virtual vtkPropertyGetPlaneProperty ()
virtual vtkPropertyGetSelectedPlaneProperty ()

Static Public Member Functions

static vtkPlaneWidgetNew ()
static int IsTypeOf (const char *type)
static vtkPlaneWidgetSafeDownCast (vtkObject *o)

Protected Types

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

Protected Member Functions

 vtkPlaneWidget ()
 ~vtkPlaneWidget ()
void OnLeftButtonDown ()
void OnLeftButtonUp ()
void OnMiddleButtonDown ()
void OnMiddleButtonUp ()
void OnRightButtonDown ()
void OnRightButtonUp ()
void OnMouseMove ()
void SelectRepresentation ()
void HighlightPlane (int highlight)
void PositionHandles ()
void HandlesOn (double length)
void HandlesOff ()
int HighlightHandle (vtkProp *prop)
virtual void SizeHandles ()
void HighlightNormal (int highlight)
void MoveOrigin (double *p1, double *p2)
void MovePoint1 (double *p1, double *p2)
void MovePoint2 (double *p1, double *p2)
void MovePoint3 (double *p1, double *p2)
void Rotate (int X, int Y, double *p1, double *p2, double *vpn)
void Spin (double *p1, double *p2)
void Scale (double *p1, double *p2, int X, int Y)
void Translate (double *p1, double *p2)
void Push (double *p1, double *p2)
void CreateDefaultProperties ()
void GeneratePlane ()

Static Protected Member Functions

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

Protected Attributes

int State
int NormalToXAxis
int NormalToYAxis
int NormalToZAxis
int Representation
vtkActorPlaneActor
vtkPolyDataMapperPlaneMapper
vtkPlaneSourcePlaneSource
vtkPolyDataPlaneOutline
vtkActor ** Handle
vtkPolyDataMapper ** HandleMapper
vtkSphereSource ** HandleGeometry
vtkActorConeActor
vtkPolyDataMapperConeMapper
vtkConeSourceConeSource
vtkActorLineActor
vtkPolyDataMapperLineMapper
vtkLineSourceLineSource
vtkActorConeActor2
vtkPolyDataMapperConeMapper2
vtkConeSourceConeSource2
vtkActorLineActor2
vtkPolyDataMapperLineMapper2
vtkLineSourceLineSource2
vtkCellPickerHandlePicker
vtkCellPickerPlanePicker
vtkActorCurrentHandle
double Normal [3]
vtkTransformTransform
vtkPropertyHandleProperty
vtkPropertySelectedHandleProperty
vtkPropertyPlaneProperty
vtkPropertySelectedPlaneProperty
int LastPickValid
double HandleSizeFactor

Member Typedef Documentation

Reimplemented from vtkPolyDataSourceWidget.

Definition at line 117 of file vtkPlaneWidget.h.


Member Enumeration Documentation

enum vtkPlaneWidget::WidgetState [protected]

Enumerator:
Start 
Moving 
Scaling 
Pushing 
Rotating 
Spinning 
Outside 

Definition at line 262 of file vtkPlaneWidget.h.


Constructor & Destructor Documentation

vtkPlaneWidget::vtkPlaneWidget (  )  [protected]

vtkPlaneWidget::~vtkPlaneWidget (  )  [protected]


Member Function Documentation

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

Instantiate the object.

Reimplemented from vtkObject.

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

Reimplemented from vtkPolyDataSourceWidget.

static int vtkPlaneWidget::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 vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkPolyDataSourceWidget.

virtual int vtkPlaneWidget::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 vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkPolyDataSourceWidget.

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

Reimplemented from vtkPolyDataSourceWidget.

void vtkPlaneWidget::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 vtkPolyDataSourceWidget.

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

Methods that satisfy the superclass' API.

Reimplemented from vtkInteractorObserver.

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

Methods that satisfy the superclass' API.

Implements vtkPolyDataSourceWidget.

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

Methods that satisfy the superclass' API.

Reimplemented from vtkPolyDataSourceWidget.

Definition at line 124 of file vtkPlaneWidget.h.

void vtkPlaneWidget::PlaceWidget ( double  xmin,
double  xmax,
double  ymin,
double  ymax,
double  zmin,
double  zmax 
) [inline, virtual]

Methods that satisfy the superclass' API.

Reimplemented from vtkPolyDataSourceWidget.

Definition at line 126 of file vtkPlaneWidget.h.

void vtkPlaneWidget::SetResolution ( int  r  ) 

Set/Get the resolution (number of subdivisions) of the plane.

int vtkPlaneWidget::GetResolution (  ) 

Set/Get the resolution (number of subdivisions) of the plane.

void vtkPlaneWidget::SetOrigin ( double  x,
double  y,
double  z 
)

Set/Get the origin of the plane.

void vtkPlaneWidget::SetOrigin ( double  x[3]  ) 

Set/Get the origin of the plane.

double* vtkPlaneWidget::GetOrigin (  ) 

Set/Get the origin of the plane.

void vtkPlaneWidget::GetOrigin ( double  xyz[3]  ) 

Set/Get the origin of the plane.

void vtkPlaneWidget::SetPoint1 ( double  x,
double  y,
double  z 
)

Set/Get the position of the point defining the first axis of the plane.

void vtkPlaneWidget::SetPoint1 ( double  x[3]  ) 

Set/Get the position of the point defining the first axis of the plane.

double* vtkPlaneWidget::GetPoint1 (  ) 

Set/Get the position of the point defining the first axis of the plane.

void vtkPlaneWidget::GetPoint1 ( double  xyz[3]  ) 

Set/Get the position of the point defining the first axis of the plane.

void vtkPlaneWidget::SetPoint2 ( double  x,
double  y,
double  z 
)

Set/Get the position of the point defining the second axis of the plane.

void vtkPlaneWidget::SetPoint2 ( double  x[3]  ) 

Set/Get the position of the point defining the second axis of the plane.

double* vtkPlaneWidget::GetPoint2 (  ) 

Set/Get the position of the point defining the second axis of the plane.

void vtkPlaneWidget::GetPoint2 ( double  xyz[3]  ) 

Set/Get the position of the point defining the second axis of the plane.

void vtkPlaneWidget::SetCenter ( double  x,
double  y,
double  z 
)

Get the center of the plane.

void vtkPlaneWidget::SetCenter ( double  x[3]  ) 

Get the center of the plane.

double* vtkPlaneWidget::GetCenter (  ) 

Get the center of the plane.

void vtkPlaneWidget::GetCenter ( double  xyz[3]  ) 

Get the center of the plane.

void vtkPlaneWidget::SetNormal ( double  x,
double  y,
double  z 
)

Get the normal to the plane.

void vtkPlaneWidget::SetNormal ( double  x[3]  ) 

Get the normal to the plane.

double* vtkPlaneWidget::GetNormal (  ) 

Get the normal to the plane.

void vtkPlaneWidget::GetNormal ( double  xyz[3]  ) 

Get the normal to the plane.

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

Control how the plane appears when GetPolyData() is invoked. If the mode is "outline", then just the outline of the plane is shown. If the mode is "wireframe" then the plane is drawn with the outline plus the interior mesh (corresponding to the resolution specified). If the mode is "surface" then the plane is drawn as a surface.

virtual int vtkPlaneWidget::GetRepresentation (  )  [virtual]

Control how the plane appears when GetPolyData() is invoked. If the mode is "outline", then just the outline of the plane is shown. If the mode is "wireframe" then the plane is drawn with the outline plus the interior mesh (corresponding to the resolution specified). If the mode is "surface" then the plane is drawn as a surface.

void vtkPlaneWidget::SetRepresentationToOff (  )  [inline]

Control how the plane appears when GetPolyData() is invoked. If the mode is "outline", then just the outline of the plane is shown. If the mode is "wireframe" then the plane is drawn with the outline plus the interior mesh (corresponding to the resolution specified). If the mode is "surface" then the plane is drawn as a surface.

Definition at line 187 of file vtkPlaneWidget.h.

void vtkPlaneWidget::SetRepresentationToOutline (  )  [inline]

Control how the plane appears when GetPolyData() is invoked. If the mode is "outline", then just the outline of the plane is shown. If the mode is "wireframe" then the plane is drawn with the outline plus the interior mesh (corresponding to the resolution specified). If the mode is "surface" then the plane is drawn as a surface.

Definition at line 189 of file vtkPlaneWidget.h.

void vtkPlaneWidget::SetRepresentationToWireframe (  )  [inline]

Control how the plane appears when GetPolyData() is invoked. If the mode is "outline", then just the outline of the plane is shown. If the mode is "wireframe" then the plane is drawn with the outline plus the interior mesh (corresponding to the resolution specified). If the mode is "surface" then the plane is drawn as a surface.

Definition at line 191 of file vtkPlaneWidget.h.

void vtkPlaneWidget::SetRepresentationToSurface (  )  [inline]

Control how the plane appears when GetPolyData() is invoked. If the mode is "outline", then just the outline of the plane is shown. If the mode is "wireframe" then the plane is drawn with the outline plus the interior mesh (corresponding to the resolution specified). If the mode is "surface" then the plane is drawn as a surface.

Definition at line 193 of file vtkPlaneWidget.h.

virtual void vtkPlaneWidget::SetNormalToXAxis ( int   )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual int vtkPlaneWidget::GetNormalToXAxis (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual void vtkPlaneWidget::NormalToXAxisOn (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual void vtkPlaneWidget::NormalToXAxisOff (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual void vtkPlaneWidget::SetNormalToYAxis ( int   )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual int vtkPlaneWidget::GetNormalToYAxis (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual void vtkPlaneWidget::NormalToYAxisOn (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual void vtkPlaneWidget::NormalToYAxisOff (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual void vtkPlaneWidget::SetNormalToZAxis ( int   )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual int vtkPlaneWidget::GetNormalToZAxis (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual void vtkPlaneWidget::NormalToZAxisOn (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

virtual void vtkPlaneWidget::NormalToZAxisOff (  )  [virtual]

Force the plane widget to be aligned with one of the x-y-z axes. Remember that when the state changes, a ModifiedEvent is invoked. This can be used to snap the plane to the axes if it is orginally not aligned.

void vtkPlaneWidget::GetPolyData ( vtkPolyData pd  ) 

Grab the polydata (including points) that defines the plane. The polydata consists of (res+1)*(res+1) points, and res*res quadrilateral polygons, where res is the resolution of the plane. 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 polyplane are added to it.

void vtkPlaneWidget::GetPlane ( vtkPlane plane  ) 

Get the planes describing the implicit function defined by the plane widget. The user must provide the instance of the class vtkPlane. Note that vtkPlane is a subclass of vtkImplicitFunction, meaning that it can be used by a variety of filters to perform clipping, cutting, and selection of data.

vtkPolyDataAlgorithm* vtkPlaneWidget::GetPolyDataAlgorithm (  )  [virtual]

Satisfies superclass API. This returns a pointer to the underlying PolyData. Make changes to this before calling the initial PlaceWidget() to have the initial placement follow suit. Or, make changes after the widget has been initialised and call UpdatePlacement() to realise.

Implements vtkPolyDataSourceWidget.

void vtkPlaneWidget::UpdatePlacement ( void   )  [virtual]

Satisfies superclass API. This will change the state of the widget to match changes that have been made to the underlying PolyDataSource

Implements vtkPolyDataSourceWidget.

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

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

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

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

virtual void vtkPlaneWidget::SetPlaneProperty ( vtkProperty  )  [virtual]

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

virtual vtkProperty* vtkPlaneWidget::GetPlaneProperty (  )  [virtual]

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

virtual vtkProperty* vtkPlaneWidget::GetSelectedPlaneProperty (  )  [virtual]

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

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

void vtkPlaneWidget::OnLeftButtonUp (  )  [protected]

void vtkPlaneWidget::OnMiddleButtonDown (  )  [protected]

void vtkPlaneWidget::OnMiddleButtonUp (  )  [protected]

void vtkPlaneWidget::OnRightButtonDown (  )  [protected]

void vtkPlaneWidget::OnRightButtonUp (  )  [protected]

void vtkPlaneWidget::OnMouseMove (  )  [protected]

void vtkPlaneWidget::SelectRepresentation (  )  [protected]

void vtkPlaneWidget::HighlightPlane ( int  highlight  )  [protected]

void vtkPlaneWidget::PositionHandles (  )  [protected]

void vtkPlaneWidget::HandlesOn ( double  length  )  [protected]

void vtkPlaneWidget::HandlesOff (  )  [protected]

int vtkPlaneWidget::HighlightHandle ( vtkProp prop  )  [protected]

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

Reimplemented from vtk3DWidget.

void vtkPlaneWidget::HighlightNormal ( int  highlight  )  [protected]

void vtkPlaneWidget::MoveOrigin ( double *  p1,
double *  p2 
) [protected]

void vtkPlaneWidget::MovePoint1 ( double *  p1,
double *  p2 
) [protected]

void vtkPlaneWidget::MovePoint2 ( double *  p1,
double *  p2 
) [protected]

void vtkPlaneWidget::MovePoint3 ( double *  p1,
double *  p2 
) [protected]

void vtkPlaneWidget::Rotate ( int  X,
int  Y,
double *  p1,
double *  p2,
double *  vpn 
) [protected]

void vtkPlaneWidget::Spin ( double *  p1,
double *  p2 
) [protected]

void vtkPlaneWidget::Scale ( double *  p1,
double *  p2,
int  X,
int  Y 
) [protected]

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

void vtkPlaneWidget::Push ( double *  p1,
double *  p2 
) [protected]

void vtkPlaneWidget::CreateDefaultProperties (  )  [protected]

void vtkPlaneWidget::GeneratePlane (  )  [protected]


Member Data Documentation

int vtkPlaneWidget::State [protected]

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double vtkPlaneWidget::Normal[3] [protected]

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

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