VTK
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
vtkPointPicker Class Reference

select a point by shooting a ray into a graphics window More...

#include <vtkPointPicker.h>

Inheritance diagram for vtkPointPicker:
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Collaboration diagram for vtkPointPicker:
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List of all members.

Public Types

typedef vtkPicker Superclass
- Public Types inherited from vtkPicker
- Public Types inherited from vtkAbstractPropPicker
- Public Types inherited from vtkAbstractPicker
- Public Types inherited from vtkObject

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
virtual vtkIdType GetPointId ()
- Public Member Functions inherited from vtkPicker
vtkProp3DCollectionGetProp3Ds ()
vtkActorCollectionGetActors ()
vtkPointsGetPickedPositions ()
virtual void SetTolerance (double)
virtual double GetTolerance ()
virtual double * GetMapperPosition ()
virtual void GetMapperPosition (double data[3])
virtual vtkAbstractMapper3DGetMapper ()
virtual vtkDataSetGetDataSet ()
virtual int Pick (double selectionX, double selectionY, double selectionZ, vtkRenderer *renderer)
int Pick (double selectionPt[3], vtkRenderer *ren)
- Public Member Functions inherited from vtkAbstractPropPicker
virtual vtkPropGetViewProp ()
virtual vtkProp3DGetProp3D ()
virtual vtkActorGetActor ()
virtual vtkActor2DGetActor2D ()
virtual vtkVolumeGetVolume ()
virtual vtkAssemblyGetAssembly ()
virtual vtkPropAssemblyGetPropAssembly ()
virtual vtkPropGetProp ()
virtual void SetPath (vtkAssemblyPath *)
virtual vtkAssemblyPathGetPath ()
- Public Member Functions inherited from vtkAbstractPicker
void InitializePickList ()
void AddPickList (vtkProp *)
void DeletePickList (vtkProp *)
vtkPropCollectionGetPickList ()
virtual vtkRendererGetRenderer ()
virtual double * GetSelectionPoint ()
virtual void GetSelectionPoint (double data[3])
virtual double * GetPickPosition ()
virtual void GetPickPosition (double data[3])
virtual void SetPickFromList (int)
virtual int GetPickFromList ()
virtual void PickFromListOn ()
virtual void PickFromListOff ()
- Public Member Functions inherited from vtkObject
virtual void DebugOn ()
virtual void DebugOff ()
unsigned char GetDebug ()
void SetDebug (unsigned char debugFlag)
virtual void Modified ()
virtual unsigned long GetMTime ()
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
vtkCommandGetCommand (unsigned long tag)
void RemoveObserver (vtkCommand *)
void RemoveObservers (unsigned long event, vtkCommand *)
void RemoveObservers (const char *event, vtkCommand *)
int HasObserver (unsigned long event, vtkCommand *)
int HasObserver (const char *event, vtkCommand *)
void RemoveObserver (unsigned long tag)
void RemoveObservers (unsigned long event)
void RemoveObservers (const char *event)
void RemoveAllObservers ()
int HasObserver (unsigned long event)
int HasObserver (const char *event)
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
int InvokeEvent (unsigned long event, void *callData)
int InvokeEvent (const char *event, void *callData)
int InvokeEvent (unsigned long event)
int InvokeEvent (const char *event)
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
virtual void Delete ()
virtual void FastDelete ()
void Print (ostream &os)
virtual void Register (vtkObjectBase *o)
virtual void UnRegister (vtkObjectBase *o)
void SetReferenceCount (int)
void PrintRevisions (ostream &os)
virtual void PrintHeader (ostream &os, vtkIndent indent)
virtual void PrintTrailer (ostream &os, vtkIndent indent)
int GetReferenceCount ()

Static Public Member Functions

static vtkPointPickerNew ()
static int IsTypeOf (const char *type)
static vtkPointPickerSafeDownCast (vtkObject *o)

Protected Member Functions

 vtkPointPicker ()
 ~vtkPointPicker ()
double IntersectWithLine (double p1[3], double p2[3], double tol, vtkAssemblyPath *path, vtkProp3D *p, vtkAbstractMapper3D *m)
void Initialize ()
- Protected Member Functions inherited from vtkPicker
 vtkPicker ()
 ~vtkPicker ()
void MarkPicked (vtkAssemblyPath *path, vtkProp3D *p, vtkAbstractMapper3D *m, double tMin, double mapperPos[3])
- Protected Member Functions inherited from vtkAbstractPropPicker
 vtkAbstractPropPicker ()
 ~vtkAbstractPropPicker ()
- Protected Member Functions inherited from vtkAbstractPicker
 vtkAbstractPicker ()
 ~vtkAbstractPicker ()
- Protected Member Functions inherited from vtkObject
 vtkObject ()
virtual ~vtkObject ()
virtual void RegisterInternal (vtkObjectBase *, int check)
virtual void UnRegisterInternal (vtkObjectBase *, int check)
void InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=NULL)
void InternalReleaseFocus ()
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
virtual ~vtkObjectBase ()
virtual void CollectRevisions (ostream &os)
virtual void ReportReferences (vtkGarbageCollector *)
 vtkObjectBase (const vtkObjectBase &)
void operator= (const vtkObjectBase &)

Protected Attributes

vtkIdType PointId
- Protected Attributes inherited from vtkPicker
double Tolerance
double MapperPosition [3]
vtkAbstractMapper3DMapper
vtkDataSetDataSet
double GlobalTMin
vtkTransformTransform
vtkActorCollectionActors
vtkProp3DCollectionProp3Ds
vtkPointsPickedPositions
- Protected Attributes inherited from vtkAbstractPropPicker
vtkAssemblyPathPath
- Protected Attributes inherited from vtkAbstractPicker
vtkRendererRenderer
double SelectionPoint [3]
double PickPosition [3]
int PickFromList
vtkPropCollectionPickList
- Protected Attributes inherited from vtkObject
unsigned char Debug
vtkTimeStamp MTime
vtkSubjectHelper * SubjectHelper
- Protected Attributes inherited from vtkObjectBase
int ReferenceCount
vtkWeakPointerBase ** WeakPointers

Detailed Description

select a point by shooting a ray into a graphics window

vtkPointPicker is used to select a point by shooting a ray into a graphics window and intersecting with actor's defining geometry - specifically its points. Beside returning coordinates, actor, and mapper, vtkPointPicker returns the id of the point projecting closest onto the ray (within the specified tolerance). Ties are broken (i.e., multiple points all projecting within the tolerance along the pick ray) by choosing the point closest to the ray.

See also:
vtkPicker vtkCellPicker.
Tests:
vtkPointPicker (Tests)

Definition at line 40 of file vtkPointPicker.h.


Member Typedef Documentation

Reimplemented from vtkPicker.

Definition at line 44 of file vtkPointPicker.h.


Constructor & Destructor Documentation

vtkPointPicker::vtkPointPicker ( )
protected
vtkPointPicker::~vtkPointPicker ( )
inlineprotected

Definition at line 54 of file vtkPointPicker.h.


Member Function Documentation

static vtkPointPicker* vtkPointPicker::New ( )
static

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkPicker.

virtual const char* vtkPointPicker::GetClassName ( )
virtual

Reimplemented from vtkPicker.

static int vtkPointPicker::IsTypeOf ( const char *  name)
static

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 vtkPicker.

virtual int vtkPointPicker::IsA ( const char *  name)
virtual

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 vtkPicker.

static vtkPointPicker* vtkPointPicker::SafeDownCast ( vtkObject o)
static

Reimplemented from vtkPicker.

void vtkPointPicker::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
virtual

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 vtkPicker.

virtual vtkIdType vtkPointPicker::GetPointId ( )
virtual

Get the id of the picked point. If PointId = -1, nothing was picked.

double vtkPointPicker::IntersectWithLine ( double  p1[3],
double  p2[3],
double  tol,
vtkAssemblyPath path,
vtkProp3D p,
vtkAbstractMapper3D m 
)
protectedvirtual

Reimplemented from vtkPicker.

void vtkPointPicker::Initialize ( )
protectedvirtual

Reimplemented from vtkPicker.


Member Data Documentation

vtkIdType vtkPointPicker::PointId
protected

Definition at line 54 of file vtkPointPicker.h.


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