#include <vtkAbstractPicker.h>
Inheritance diagram for vtkAbstractPicker:
Public Methods | |
virtual const char * | GetClassName () |
virtual int | IsA (const char *type) |
void | PrintSelf (ostream &os, vtkIndent indent) |
virtual vtkRenderer * | GetRenderer () |
virtual float * | GetSelectionPoint () |
virtual void | GetSelectionPoint (float data[3]) |
virtual float * | GetPickPosition () |
virtual void | GetPickPosition (float data[3]) |
virtual int | Pick (float selectionX, float selectionY, float selectionZ, vtkRenderer *renderer)=0 |
int | Pick (float selectionPt[3], vtkRenderer *ren) |
void | SetStartPickMethod (void(*f)(void *), void *arg) |
void | SetPickMethod (void(*f)(void *), void *arg) |
void | SetEndPickMethod (void(*f)(void *), void *arg) |
void | SetStartPickMethodArgDelete (void(*f)(void *)) |
void | SetPickMethodArgDelete (void(*f)(void *)) |
void | SetEndPickMethodArgDelete (void(*f)(void *)) |
virtual void | SetPickFromList (int) |
virtual int | GetPickFromList () |
virtual void | PickFromListOn () |
virtual void | PickFromListOff () |
void | InitializePickList () |
void | AddPickList (vtkProp *) |
void | DeletePickList (vtkProp *) |
vtkPropCollection * | GetPickList () |
Static Public Methods | |
int | IsTypeOf (const char *type) |
vtkAbstractPicker * | SafeDownCast (vtkObject *o) |
Protected Methods | |
vtkAbstractPicker () | |
~vtkAbstractPicker () | |
vtkAbstractPicker (const vtkAbstractPicker &) | |
void | operator= (const vtkAbstractPicker &) |
virtual void | Initialize () |
Protected Attributes | |
vtkRenderer * | Renderer |
float | SelectionPoint [3] |
float | PickPosition [3] |
void(* | StartPickMethod )(void *) |
void(* | StartPickMethodArgDelete )(void *) |
void * | StartPickMethodArg |
void(* | PickMethod )(void *) |
void * | PickMethodArg |
void(* | PickMethodArgDelete )(void *) |
void(* | EndPickMethod )(void *) |
void(* | EndPickMethodArgDelete )(void *) |
void * | EndPickMethodArg |
int | PickFromList |
vtkPropCollection * | PickList |
vtkAbstractPicker is an abstract superclass that defines a minimal API for its concrete subclasses. The minimum functionality of a picker is to return the x-y-z global coordinate position of a pick (the pick itself is defined in display coordinates).
The API to this class is to invoke the Pick() method with a selection point (in display coordinates - pixels) and a renderer. Then get the resulting pick position in global coordinates with the GetPickPosition() method.
vtkPicker has hooks for methods to call during the picking process. These methods are StartPickMethod(), PickMethod(), and EndPickMethod() which are invoked prior to picking, when something is picked, and after all picking candidates have been tested. Note that during the pick process the PickMethod() of vtkProp (and its subclasses such as vtkActor) is called prior to the pick method of vtkPicker.
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Add an actor to the pick list. |
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Delete an actor from the pick list. |
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Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkObject. Reimplemented in vtkAbstractPropPicker. |
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Return the list of actors in the PickList. |
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Return position in global coordinates of pick point. |
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Get the renderer in which pick event occurred. |
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Get the selection point in screen (pixel) coordinates. The third value is related to z-buffer depth. (Normally should be =0.) |
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Initialize list of actors in pick list. |
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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 vtkObject. Reimplemented in vtkAbstractPropPicker. |
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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 vtkObject. Reimplemented in vtkAbstractPropPicker. |
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provided. Normally the first two values for the selection point are x-y pixel coordinate, and the third value is =0. Return non-zero if something was successfully picked. Reimplemented in vtkPicker. |
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Perform pick operation with selection point provided. Normally the first two values for the selection point are x-y pixel coordinate, and the third value is =0. Return non-zero if something was successfully picked. Implemented in vtkPicker. |
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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 vtkObject. Reimplemented in vtkAbstractPropPicker. |
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Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkObject. Reimplemented in vtkAbstractPropPicker. |
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Specify function to be called after all picking operations have been performed. |
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Set a method to delete user arguments for EndPickMethod. |
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Use these methods to control whether to limit the picking to this list (rather than renderer's actors). Make sure that the pick list contains actors that referred to by the picker's renderer. |
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Specify function to be called when something is picked. |
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Set a method to delete user arguments for PickMethod. |
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begins. |
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Set a method to delete user arguments for StartPickMethod. |