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| virtual vtkTypeBool | IsA (const char *type) |
| | Return 1 if this class is the same type of (or a subclass of) the named class. More...
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| vtkScenePicker * | NewInstance () const |
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| void | PrintSelf (ostream &os, vtkIndent indent) override |
| | Methods invoked by print to print information about the object including superclasses. More...
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| vtkIdType | GetCellId (int displayPos[2]) |
| | Get cell id at the pick position. More...
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| vtkIdType | GetVertexId (int displayPos[2]) |
| | Get cell id at the pick position. More...
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| vtkProp * | GetViewProp (int displayPos[2]) |
| | Get actor at the pick position. More...
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| virtual void | SetRenderer (vtkRenderer *) |
| | Set the renderer. More...
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| virtual vtkRenderer * | GetRenderer () |
| | Set the renderer. More...
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| virtual void | SetEnableVertexPicking (vtkTypeBool) |
| | Vertex picking (using the method GetVertexId()), required additional resources and can slow down still render time by 5-10%. More...
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| virtual vtkTypeBool | GetEnableVertexPicking () |
| | Vertex picking (using the method GetVertexId()), required additional resources and can slow down still render time by 5-10%. More...
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| virtual void | EnableVertexPickingOn () |
| | Vertex picking (using the method GetVertexId()), required additional resources and can slow down still render time by 5-10%. More...
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| virtual void | EnableVertexPickingOff () |
| | Vertex picking (using the method GetVertexId()), required additional resources and can slow down still render time by 5-10%. More...
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| | vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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| virtual void | DebugOn () |
| | Turn debugging output on. More...
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| virtual void | DebugOff () |
| | Turn debugging output off. More...
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| bool | GetDebug () |
| | Get the value of the debug flag. More...
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| void | SetDebug (bool debugFlag) |
| | Set the value of the debug flag. More...
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| virtual void | Modified () |
| | Update the modification time for this object. More...
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| virtual vtkMTimeType | GetMTime () |
| | Return this object's modified time. More...
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| void | RemoveObserver (unsigned long tag) |
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| void | RemoveObservers (unsigned long event) |
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| void | RemoveObservers (const char *event) |
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| void | RemoveAllObservers () |
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| vtkTypeBool | HasObserver (unsigned long event) |
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| vtkTypeBool | HasObserver (const char *event) |
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| int | InvokeEvent (unsigned long event) |
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| int | InvokeEvent (const char *event) |
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| unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| vtkCommand * | GetCommand (unsigned long tag) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| void | RemoveObserver (vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| void | RemoveObservers (unsigned long event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| void | RemoveObservers (const char *event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| template<class U , class T > |
| unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
| | Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
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| template<class U , class T > |
| unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
| | Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
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| template<class U , class T > |
| unsigned long | AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
| | Allow user to set the AbortFlagOn() with the return value of the callback method. More...
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| int | InvokeEvent (unsigned long event, void *callData) |
| | This method invokes an event and return whether the event was aborted or not. More...
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| int | InvokeEvent (const char *event, void *callData) |
| | This method invokes an event and return whether the event was aborted or not. More...
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| const char * | GetClassName () const |
| | Return the class name as a string. More...
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| virtual void | Delete () |
| | Delete a VTK object. More...
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| virtual void | FastDelete () |
| | Delete a reference to this object. More...
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| void | InitializeObjectBase () |
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| void | Print (ostream &os) |
| | Print an object to an ostream. More...
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| virtual void | Register (vtkObjectBase *o) |
| | Increase the reference count (mark as used by another object). More...
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| virtual void | UnRegister (vtkObjectBase *o) |
| | Decrease the reference count (release by another object). More...
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| int | GetReferenceCount () |
| | Return the current reference count of this object. More...
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| void | SetReferenceCount (int) |
| | Sets the reference count. More...
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| void | PrintRevisions (ostream &) |
| | Legacy. More...
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| virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| | Methods invoked by print to print information about the object including superclasses. More...
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| virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| | Methods invoked by print to print information about the object including superclasses. More...
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Picks an entire viewport at one shot.
The Scene picker, unlike conventional pickers picks an entire viewport at one shot and caches the result, which can be retrieved later. The utility of the class arises during Actor Selection. Let's say you have a couple of polygonal objects in your scene and you wish to have a status bar that indicates the object your mouse is over. Picking repeatedly every time your mouse moves would be very slow. The scene picker automatically picks your viewport every time the camera is changed and caches the information. Additionally, it observes the vtkRenderWindowInteractor to avoid picking during interaction, so that you still maintain your interactivity. In effect, the picker does an additional pick-render of your scene every time you stop interacting with your scene. As an example, see Rendering/TestScenePicker.
- Warning
- Unlike a vtkHoverWidget, this class is not timer based. The hover widget picks a scene when the mouse is over an actor for a specified duration.
- This class uses a vtkHardwareSelector under the hood. Hence, it will work only for actors that have opaque geomerty and are rendered by a vtkPolyDataMapper.
- See also
- vtkHoverWidget vtkHardwareSelector
Definition at line 55 of file vtkScenePicker.h.
Public Member Functions inherited from vtkObject