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vtkAffineWidget Class Reference

perform affine transformations More...

#include <vtkAffineWidget.h>

Inheritance diagram for vtkAffineWidget:
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Collaboration diagram for vtkAffineWidget:
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Public Member Functions

void CreateDefaultRepresentation ()
 
virtual void SetEnabled (int)
 
void SetRepresentation (vtkAffineRepresentation *r)
 
vtkAffineRepresentationGetAffineRepresentation ()
 
- Public Member Functions inherited from vtkAbstractWidget
void Render ()
 
virtual void SetPriority (float)
 
virtual void SetProcessEvents (int)
 
virtual int GetProcessEvents ()
 
virtual void ProcessEventsOn ()
 
virtual void ProcessEventsOff ()
 
vtkWidgetEventTranslatorGetEventTranslator ()
 
void SetParent (vtkAbstractWidget *parent)
 
virtual vtkAbstractWidgetGetParent ()
 
vtkWidgetRepresentationGetRepresentation ()
 
virtual void SetManagesCursor (int)
 
virtual int GetManagesCursor ()
 
virtual void ManagesCursorOn ()
 
virtual void ManagesCursorOff ()
 
vtkAbstractWidgetNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 

Static Public Member Functions

static vtkAffineWidgetNew ()
 
- Static Public Member Functions inherited from vtkAbstractWidget
static int IsTypeOf (const char *type)
 
static vtkAbstractWidgetSafeDownCast (vtkObjectBase *o)
 

Protected Types

enum  _WidgetState { Start =0, Active }
 

Protected Member Functions

 vtkAffineWidget ()
 
 ~vtkAffineWidget ()
 
void SetCursor (int state)
 
- Protected Member Functions inherited from vtkAbstractWidget
 vtkAbstractWidget ()
 
 ~vtkAbstractWidget ()
 
void SetWidgetRepresentation (vtkWidgetRepresentation *r)
 
virtual void SetCursor (int vtkNotUsed(state))
 

Static Protected Member Functions

static void SelectAction (vtkAbstractWidget *)
 
static void EndSelectAction (vtkAbstractWidget *)
 
static void MoveAction (vtkAbstractWidget *)
 
static void ModifyEventAction (vtkAbstractWidget *)
 
- Static Protected Member Functions inherited from vtkAbstractWidget
static void ProcessEventsHandler (vtkObject *object, unsigned long event, void *clientdata, void *calldata)
 

Protected Attributes

int WidgetState
 
int ModifierActive
 
- Protected Attributes inherited from vtkAbstractWidget
vtkWidgetRepresentationWidgetRep
 
int ManagesCursor
 
vtkWidgetEventTranslatorEventTranslator
 
vtkWidgetCallbackMapperCallbackMapper
 
vtkAbstractWidgetParent
 
void * CallData
 
int ProcessEvents
 
typedef vtkAbstractWidget Superclass
 
static int IsTypeOf (const char *type)
 
static vtkAffineWidgetSafeDownCast (vtkObjectBase *o)
 
virtual int IsA (const char *type)
 
vtkAffineWidgetNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual vtkObjectBase * NewInstanceInternal () const
 

Detailed Description

perform affine transformations

The vtkAffineWidget is used to perform affine transformations on objects. (Affine transformations are transformations that keep parallel lines parallel. Affine transformations include translation, scaling, rotation, and shearing.)

To use this widget, set the widget representation. The representation maintains a transformation matrix and other instance variables consistent with the transformations applied by this widget.

Event Bindings:
By default, the widget responds to the following VTK events (i.e., it watches the vtkRenderWindowInteractor for these events):
  LeftButtonPressEvent - select widget: depending on which part is selected
                         translation, rotation, scaling, or shearing may follow.
  LeftButtonReleaseEvent - end selection of widget.
  MouseMoveEvent - interactive movement across widget
Event Bindings:
Note that the event bindings described above can be changed using this class's vtkWidgetEventTranslator. This class translates VTK events into the vtkAffineWidget's widget events:
  vtkWidgetEvent::Select -- focal point is being selected
  vtkWidgetEvent::EndSelect -- the selection process has completed
  vtkWidgetEvent::Move -- a request for widget motion
Event Bindings:
In turn, when these widget events are processed, the vtkAffineWidget invokes the following VTK events on itself (which observers can listen for):
  vtkCommand::StartInteractionEvent (on vtkWidgetEvent::Select)
  vtkCommand::EndInteractionEvent (on vtkWidgetEvent::EndSelect)
  vtkCommand::InteractionEvent (on vtkWidgetEvent::Move)
Events:
vtkCommand::StartInteractionEvent vtkCommand::InteractionEvent vtkCommand::EndInteractionEvent
Examples:
vtkAffineWidget (Examples)
Tests:
vtkAffineWidget (Tests)

Definition at line 75 of file vtkAffineWidget.h.

Member Typedef Documentation

Standard VTK class macros.

Definition at line 83 of file vtkAffineWidget.h.

Member Enumeration Documentation

Enumerator
Start 
Active 

Definition at line 124 of file vtkAffineWidget.h.

Constructor & Destructor Documentation

vtkAffineWidget::vtkAffineWidget ( )
protected
vtkAffineWidget::~vtkAffineWidget ( )
protected

Member Function Documentation

static vtkAffineWidget* vtkAffineWidget::New ( )
static

Instantiate this class.

static int vtkAffineWidget::IsTypeOf ( const char *  type)
static

Standard VTK class macros.

virtual int vtkAffineWidget::IsA ( const char *  type)
virtual

Standard VTK class macros.

Reimplemented from vtkAbstractWidget.

static vtkAffineWidget* vtkAffineWidget::SafeDownCast ( vtkObjectBase *  o)
static

Standard VTK class macros.

virtual vtkObjectBase* vtkAffineWidget::NewInstanceInternal ( ) const
protectedvirtual

Standard VTK class macros.

Reimplemented from vtkAbstractWidget.

vtkAffineWidget* vtkAffineWidget::NewInstance ( ) const

Standard VTK class macros.

void vtkAffineWidget::PrintSelf ( ostream &  os,
vtkIndent  indent 
)

Standard VTK class macros.

void vtkAffineWidget::SetRepresentation ( vtkAffineRepresentation r)
inline

Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene. Note that the representation is a subclass of vtkProp so it can be added to the renderer independent of the widget.

Definition at line 91 of file vtkAffineWidget.h.

vtkAffineRepresentation* vtkAffineWidget::GetAffineRepresentation ( )
inline

Return the representation as a vtkAffineRepresentation.

Definition at line 97 of file vtkAffineWidget.h.

void vtkAffineWidget::CreateDefaultRepresentation ( )
virtual

Create the default widget representation if one is not set.

Implements vtkAbstractWidget.

virtual void vtkAffineWidget::SetEnabled ( int  )
virtual

Methods for activating this widget. This implementation extends the superclasses' in order to resize the widget handles due to a render start event.

Reimplemented from vtkAbstractWidget.

static void vtkAffineWidget::SelectAction ( vtkAbstractWidget )
staticprotected
static void vtkAffineWidget::EndSelectAction ( vtkAbstractWidget )
staticprotected
static void vtkAffineWidget::MoveAction ( vtkAbstractWidget )
staticprotected
static void vtkAffineWidget::ModifyEventAction ( vtkAbstractWidget )
staticprotected
void vtkAffineWidget::SetCursor ( int  state)
protected

Member Data Documentation

int vtkAffineWidget::WidgetState
protected

Definition at line 123 of file vtkAffineWidget.h.

int vtkAffineWidget::ModifierActive
protected

Definition at line 132 of file vtkAffineWidget.h.


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