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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.
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vtkAreaPicker * | 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.
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void | SetPickCoords (double x0, double y0, double x1, double y1) |
| Set the default screen rectangle to pick in.
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void | SetRenderer (vtkRenderer *) |
| Set the default renderer to pick on.
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virtual int | Pick () |
| Perform an AreaPick within the default screen rectangle and renderer.
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virtual int | AreaPick (double x0, double y0, double x1, double y1, vtkRenderer *renderer=nullptr) |
| Perform pick operation in volume behind the given screen coordinates.
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int | Pick (double x0, double y0, double vtkNotUsed(z0), vtkRenderer *renderer=nullptr) override |
| Perform pick operation in volume behind the given screen coordinate.
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vtkProp3DCollection * | GetProp3Ds () |
| Return a collection of all the prop 3D's that were intersected by the pick ray.
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virtual vtkAbstractMapper3D * | GetMapper () |
| Return mapper that was picked (if any).
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virtual vtkDataSet * | GetDataSet () |
| Get a pointer to the dataset that was picked (if any).
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virtual vtkPlanes * | GetFrustum () |
| Return the six planes that define the selection frustum.
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virtual vtkPoints * | GetClipPoints () |
| Return eight points that define the selection frustum.
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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.
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vtkAbstractPropPicker * | 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.
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virtual vtkProp * | GetViewProp () |
| Return the vtkProp that has been picked.
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virtual vtkProp3D * | GetProp3D () |
| Return the vtkProp that has been picked.
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virtual vtkActor * | GetActor () |
| Return the vtkActor that has been picked.
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virtual vtkActor2D * | GetActor2D () |
| Return the vtkActor2D that has been picked.
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virtual vtkVolume * | GetVolume () |
| Return the vtkVolume that has been picked.
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virtual vtkAssembly * | GetAssembly () |
| Return the vtkAssembly that has been picked.
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virtual vtkPropAssembly * | GetPropAssembly () |
| Return the vtkPropAssembly that has been picked.
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virtual void | SetPath (vtkAssemblyPath *) |
| Return the vtkAssemblyPath that has been picked.
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virtual vtkAssemblyPath * | GetPath () |
| Return the vtkAssemblyPath that has been picked.
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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.
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vtkAbstractPicker * | 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.
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virtual int | Pick (double selectionX, double selectionY, double selectionZ, vtkRenderer *renderer)=0 |
| Perform pick operation with selection point provided.
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int | Pick (double selectionPt[3], vtkRenderer *ren) |
| provided.
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virtual int | Pick3DPoint (double[3], vtkRenderer *) |
| Perform pick operation with selection point provided.
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virtual int | Pick3DRay (double[3], double[4], vtkRenderer *) |
| Perform pick operation with selection point and orientation provided.
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void | InitializePickList () |
| Initialize list of actors in pick list.
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void | AddPickList (vtkProp *) |
| Add an actor to the pick list.
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void | DeletePickList (vtkProp *) |
| Delete an actor from the pick list.
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vtkPropCollection * | GetPickList () |
| Return the list of actors in the PickList.
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virtual vtkRenderer * | GetRenderer () |
| Get the renderer in which pick event occurred.
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virtual double * | GetSelectionPoint () |
| Get the selection point in screen (pixel) coordinates.
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virtual void | GetSelectionPoint (double data[3]) |
| Get the selection point in screen (pixel) coordinates.
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virtual double * | GetPickPosition () |
| Return position in global coordinates of pick point.
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virtual void | GetPickPosition (double data[3]) |
| Return position in global coordinates of pick point.
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virtual void | SetPickFromList (vtkTypeBool) |
| Use these methods to control whether to limit the picking to this list (rather than renderer's actors).
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virtual vtkTypeBool | GetPickFromList () |
| Use these methods to control whether to limit the picking to this list (rather than renderer's actors).
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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).
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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).
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| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on.
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virtual void | DebugOff () |
| Turn debugging output off.
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bool | GetDebug () |
| Get the value of the debug flag.
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag.
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virtual void | Modified () |
| Update the modification time for this object.
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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time.
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses.
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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.
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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.
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vtkCommand * | GetCommand (unsigned long tag) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObserver (vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObservers (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObservers (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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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.
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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.
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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.
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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.
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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.
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const char * | GetClassName () const |
| Return the class name as a string.
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virtual vtkTypeBool | IsA (const char *name) |
| Return 1 if this class is the same type of (or a subclass of) the named class.
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virtual vtkIdType | GetNumberOfGenerationsFromBase (const char *name) |
| Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
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virtual void | Delete () |
| Delete a VTK object.
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virtual void | FastDelete () |
| Delete a reference to this object.
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void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream.
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virtual void | Register (vtkObjectBase *o) |
| Increase the reference count (mark as used by another object).
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virtual void | UnRegister (vtkObjectBase *o) |
| Decrease the reference count (release by another object).
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int | GetReferenceCount () |
| Return the current reference count of this object.
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void | SetReferenceCount (int) |
| Sets the reference count.
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bool | GetIsInMemkind () const |
| A local state flag that remembers whether this object lives in the normal or extended memory space.
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses.
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses.
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static vtkAreaPicker * | New () |
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkAreaPicker * | SafeDownCast (vtkObjectBase *o) |
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkAbstractPropPicker * | SafeDownCast (vtkObjectBase *o) |
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkAbstractPicker * | SafeDownCast (vtkObjectBase *o) |
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static vtkObject * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
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static void | BreakOnError () |
| This method is called when vtkErrorMacro executes.
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static void | SetGlobalWarningDisplay (int val) |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static void | GlobalWarningDisplayOn () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static void | GlobalWarningDisplayOff () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static int | GetGlobalWarningDisplay () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static vtkTypeBool | IsTypeOf (const char *name) |
| Return 1 if this class type is the same type of (or a subclass of) the named class.
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static vtkIdType | GetNumberOfGenerationsFromBaseType (const char *name) |
| Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
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static vtkObjectBase * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
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static void | SetMemkindDirectory (const char *directoryname) |
| The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
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static bool | GetUsingMemkind () |
| A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.
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Picks props behind a selection rectangle on a viewport.
The vtkAreaPicker picks all vtkProp3Ds that lie behind the screen space rectangle from x0,y0 and x1,y1. The selection is based upon the bounding box of the prop and is thus not exact.
Like vtkPicker, a pick results in a list of Prop3Ds because many props may lie within the pick frustum. You can also get an AssemblyPath, which in this case is defined to be the path to the one particular prop in the Prop3D list that lies nearest to the near plane.
This picker also returns the selection frustum, defined as either a vtkPlanes, or a set of eight corner vertices in world space. The vtkPlanes version is an ImplicitFunction, which is suitable for use with the vtkExtractGeometry. The six frustum planes are in order: left, right, bottom, top, near, far
Because this picker picks everything within a volume, the world pick point result is ill-defined. Therefore if you ask this class for the world pick position, you will get the centroid of the pick frustum. This may be outside of all props in the prop list.
- See also
- vtkInteractorStyleRubberBandPick, vtkExtractSelectedFrustum.
- Events:
- vtkCommand::EndPickEvent vtkCommand::PickEvent vtkCommand::StartPickEvent
- Online Examples:
- Tests:
- vtkAreaPicker (Tests)
Definition at line 134 of file vtkAreaPicker.h.