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| virtual int | 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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| vtkAbstractPropPicker * | NewInstance () const |
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| void | PrintSelf (ostream &os, vtkIndent indent) |
| | Methods invoked by print to print information about the object including superclasses. More...
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| virtual vtkProp * | GetViewProp () |
| | Return the vtkProp that has been picked. More...
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| virtual vtkProp3D * | GetProp3D () |
| | Return the vtkProp that has been picked. More...
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| virtual vtkActor * | GetActor () |
| | Return the vtkActor that has been picked. More...
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| virtual vtkActor2D * | GetActor2D () |
| | Return the vtkActor2D that has been picked. More...
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| virtual vtkVolume * | GetVolume () |
| | Return the vtkVolume that has been picked. More...
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| virtual vtkAssembly * | GetAssembly () |
| | Return the vtkAssembly that has been picked. More...
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| virtual vtkPropAssembly * | GetPropAssembly () |
| | Return the vtkPropAssembly that has been picked. More...
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| virtual void | SetPath (vtkAssemblyPath *) |
| | Return the vtkAssemblyPath that has been picked. More...
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| virtual vtkAssemblyPath * | GetPath () |
| | Return the vtkAssemblyPath that has been picked. More...
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| vtkAbstractPicker * | NewInstance () const |
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| virtual int | Pick (double selectionX, double selectionY, double selectionZ, vtkRenderer *renderer)=0 |
| | Perform pick operation with selection point provided. More...
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| int | Pick (double selectionPt[3], vtkRenderer *ren) |
| | provided. More...
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| void | InitializePickList () |
| | Initialize list of actors in pick list. More...
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| void | AddPickList (vtkProp *) |
| | Add an actor to the pick list. More...
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| void | DeletePickList (vtkProp *) |
| | Delete an actor from the pick list. More...
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| vtkPropCollection * | GetPickList () |
| | Return the list of actors in the PickList. More...
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| virtual vtkRenderer * | GetRenderer () |
| | Get the renderer in which pick event occurred. More...
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| virtual double * | GetSelectionPoint () |
| | Get the selection point in screen (pixel) coordinates. More...
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| virtual void | GetSelectionPoint (double data[3]) |
| | Get the selection point in screen (pixel) coordinates. More...
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| virtual double * | GetPickPosition () |
| | Return position in global coordinates of pick point. More...
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| virtual void | GetPickPosition (double data[3]) |
| | Return position in global coordinates of pick point. More...
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| virtual void | SetPickFromList (int) |
| | Use these methods to control whether to limit the picking to this list (rather than renderer's actors). More...
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| virtual int | GetPickFromList () |
| | Use these methods to control whether to limit the picking to this list (rather than renderer's actors). More...
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| virtual void | PickFromListOn () |
| | Use these methods to control whether to limit the picking to this list (rather than renderer's actors). More...
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| virtual void | PickFromListOff () |
| | Use these methods to control whether to limit the picking to this list (rather than renderer's actors). 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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| int | HasObserver (unsigned long event) |
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| int | 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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| int | HasObserver (unsigned long event, vtkCommand *) |
| | Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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| int | 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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abstract API for pickers that can pick an instance of vtkProp
vtkAbstractPropPicker is an abstract superclass for pickers that can pick an instance of vtkProp. Some pickers, like vtkWorldPointPicker (not a subclass of this class), cannot identify the prop that is picked. Subclasses of vtkAbstractPropPicker return a prop in the form of a vtkAssemblyPath when a pick is invoked. Note that an vtkAssemblyPath contain a list of vtkAssemblyNodes, each of which in turn contains a reference to a vtkProp and a 4x4 transformation matrix. The path fully describes the entire pick path, so you can pick assemblies or portions of assemblies, or just grab the tail end of the vtkAssemblyPath (which is the picked prop).
- Warning
- Because a vtkProp can be placed into different assemblies, or even in different leaf positions of the same assembly, the vtkAssemblyPath is used to fully qualify exactly which use of the vtkProp was picked, including its position (since vtkAssemblyPath includes a transformation matrix per node).
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The class returns information about picked actors, props, etc. Note that what is returned by these methods is the top level of the assembly path. This can cause a lot of confusion! For example, if you pick a vtkAssembly, and the returned vtkAssemblyPath has as a leaf a vtkActor, then if you invoke GetActor(), you will get NULL, even though an actor was indeed picked. (GetAssembly() will return something.) Note that the safest thing to do is to do a GetViewProp(), which will always return something if something was picked. A better way to manage picking is to work with vtkAssemblyPath, since this completely defines the pick path from top to bottom in a assembly hierarchy, and avoids confusion when the same prop is used in different assemblies.
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The returned assembly paths refer to assembly nodes that in turn refer to vtkProp and vtkMatrix. This association to vtkProp is not a reference counted association, meaning that dangling references are possible if you do a pick, get an assembly path, and then delete a vtkProp. (Reason: assembly paths create many self-referencing loops that destroy reference counting.)
- See also
- vtkPropPicker vtkPicker vtkWorldPointPicker vtkCellPicker vtkPointPicker vtkAssemblyPath vtkAssemblyNode vtkAssemblyPaths vtkAbstractPicker vtkRenderer
Definition at line 79 of file vtkAbstractPropPicker.h.
Public Types inherited from vtkAbstractPicker