vtkVolumePicker Class Reference

ray-cast picker enhanced for volumes More...

#include <vtkVolumePicker.h>

Inheritance diagram for vtkVolumePicker:

Collaboration diagram for vtkVolumePicker:

Public Types
typedef vtkCellPicker	Superclass
Public Types inherited from vtkCellPicker
typedef vtkPicker	Superclass
Public Types inherited from vtkPicker
typedef vtkAbstractPropPicker	Superclass
Public Types inherited from vtkAbstractPropPicker
typedef vtkAbstractPicker	Superclass
Public Types inherited from vtkAbstractPicker
typedef vtkObject	Superclass
Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)
vtkVolumePicker *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	SetPickCroppingPlanes (int)
virtual void	PickCroppingPlanesOn ()
virtual void	PickCroppingPlanesOff ()
virtual int	GetPickCroppingPlanes ()
virtual int	GetCroppingPlaneId ()
Public Member Functions inherited from vtkCellPicker
vtkCellPicker *	NewInstance () const
void	AddLocator (vtkAbstractCellLocator *locator)
void	RemoveLocator (vtkAbstractCellLocator *locator)
void	RemoveAllLocators ()
vtkTexture *	GetTexture ()
virtual int	Pick (double selectionX, double selectionY, double selectionZ, vtkRenderer *renderer)
virtual void	SetVolumeOpacityIsovalue (double)
virtual double	GetVolumeOpacityIsovalue ()
virtual void	SetUseVolumeGradientOpacity (int)
virtual void	UseVolumeGradientOpacityOn ()
virtual void	UseVolumeGradientOpacityOff ()
virtual int	GetUseVolumeGradientOpacity ()
virtual void	SetPickClippingPlanes (int)
virtual void	PickClippingPlanesOn ()
virtual void	PickClippingPlanesOff ()
virtual int	GetPickClippingPlanes ()
virtual int	GetClippingPlaneId ()
virtual double *	GetPickNormal ()
virtual void	GetPickNormal (double data[3])
virtual double *	GetMapperNormal ()
virtual void	GetMapperNormal (double &, double &, double &)
virtual void	GetMapperNormal (double[3])
virtual int *	GetPointIJK ()
virtual void	GetPointIJK (int &, int &, int &)
virtual void	GetPointIJK (int[3])
virtual int *	GetCellIJK ()
virtual void	GetCellIJK (int &, int &, int &)
virtual void	GetCellIJK (int[3])
virtual vtkIdType	GetPointId ()
virtual vtkIdType	GetCellId ()
virtual int	GetSubId ()
virtual double *	GetPCoords ()
virtual void	GetPCoords (double &, double &, double &)
virtual void	GetPCoords (double[3])
virtual void	SetPickTextureData (int)
virtual void	PickTextureDataOn ()
virtual void	PickTextureDataOff ()
virtual int	GetPickTextureData ()
Public Member Functions inherited from vtkPicker
vtkPicker *	NewInstance () const
vtkActorCollection *	GetActors ()
virtual void	SetTolerance (double)
virtual double	GetTolerance ()
virtual double *	GetMapperPosition ()
virtual void	GetMapperPosition (double data[3])
virtual vtkAbstractMapper3D *	GetMapper ()
virtual vtkDataSet *	GetDataSet ()
vtkProp3DCollection *	GetProp3Ds ()
vtkPoints *	GetPickedPositions ()
int	Pick (double selectionPt[3], vtkRenderer *ren)
Public Member Functions inherited from vtkAbstractPropPicker
vtkAbstractPropPicker *	NewInstance () const
virtual vtkProp *	GetViewProp ()
virtual vtkProp3D *	GetProp3D ()
virtual vtkActor *	GetActor ()
virtual vtkActor2D *	GetActor2D ()
virtual vtkVolume *	GetVolume ()
virtual vtkAssembly *	GetAssembly ()
virtual vtkPropAssembly *	GetPropAssembly ()
virtual void	SetPath (vtkAssemblyPath *)
virtual vtkAssemblyPath *	GetPath ()
Public Member Functions inherited from vtkAbstractPicker
vtkAbstractPicker *	NewInstance () const
void	InitializePickList ()
void	AddPickList (vtkProp *)
void	DeletePickList (vtkProp *)
vtkPropCollection *	GetPickList ()
virtual vtkRenderer *	GetRenderer ()
virtual double *	GetSelectionPoint ()
virtual void	GetSelectionPoint (double data[3])
virtual double *	GetPickPosition ()
virtual void	GetPickPosition (double data[3])
int	Pick (double selectionPt[3], vtkRenderer *ren)
virtual void	SetPickFromList (int)
virtual int	GetPickFromList ()
virtual void	PickFromListOn ()
virtual void	PickFromListOff ()
Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const
virtual void	DebugOn ()
virtual void	DebugOff ()
bool	GetDebug ()
void	SetDebug (bool 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)
vtkCommand *	GetCommand (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)
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(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 &)
virtual void	PrintHeader (ostream &os, vtkIndent indent)
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
int	GetReferenceCount ()

Static Public Member Functions
static vtkVolumePicker *	New ()
static int	IsTypeOf (const char *type)
static vtkVolumePicker *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkCellPicker
static vtkCellPicker *	New ()
static int	IsTypeOf (const char *type)
static vtkCellPicker *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkPicker
static vtkPicker *	New ()
static int	IsTypeOf (const char *type)
static vtkPicker *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkAbstractPropPicker
static int	IsTypeOf (const char *type)
static vtkAbstractPropPicker *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkAbstractPicker
static int	IsTypeOf (const char *type)
static vtkAbstractPicker *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)
static vtkObject *	SafeDownCast (vtkObjectBase *o)
static vtkObject *	New ()
static void	BreakOnError ()
static void	SetGlobalWarningDisplay (int val)
static void	GlobalWarningDisplayOn ()
static void	GlobalWarningDisplayOff ()
static int	GetGlobalWarningDisplay ()
Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)
static vtkObjectBase *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkVolumePicker ()
	~vtkVolumePicker ()
virtual void	ResetPickInfo ()
virtual double	IntersectVolumeWithLine (const double p1[3], const double p2[3], double t1, double t2, vtkProp3D *prop, vtkAbstractVolumeMapper *mapper)
Protected Member Functions inherited from vtkCellPicker
	vtkCellPicker ()
	~vtkCellPicker ()
void	Initialize ()
virtual double	IntersectWithLine (double p1[3], double p2[3], double tol, vtkAssemblyPath *path, vtkProp3D *p, vtkAbstractMapper3D *m)
virtual double	IntersectActorWithLine (const double p1[3], const double p2[3], double t1, double t2, double tol, vtkProp3D *prop, vtkMapper *mapper)
virtual double	IntersectImageWithLine (const double p1[3], const double p2[3], double t1, double t2, vtkProp3D *prop, vtkImageMapper3D *mapper)
virtual double	IntersectProp3DWithLine (const double p1[3], const double p2[3], double t1, double t2, double tol, vtkProp3D *prop, vtkAbstractMapper3D *mapper)
void	SetImageDataPickInfo (const double x[3], const int extent[6])
double	ComputeVolumeOpacity (const int xi[3], const double pcoords[3], vtkImageData *data, vtkDataArray *scalars, vtkPiecewiseFunction *scalarOpacity, vtkPiecewiseFunction *gradientOpacity)
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 &)
virtual void	ReportReferences (vtkGarbageCollector *)
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Static Protected Member Functions
static int	ClipLineWithCroppingRegion (const double bounds[6], const int extent[6], int flags, const double x1[3], const double x2[3], double t1, double t2, int &extentPlaneId, int &numSegments, double *t1List, double *t2List, double *s1List, int *planeIdList)
Static Protected Member Functions inherited from vtkCellPicker
static int	ClipLineWithPlanes (vtkAbstractMapper3D *mapper, vtkMatrix4x4 *propMatrix, const double p1[3], const double p2[3], double &t1, double &t2, int &planeId)
static int	ClipLineWithExtent (const int extent[6], const double x1[3], const double x2[3], double &t1, double &t2, int &planeId)
static int	ComputeSurfaceNormal (vtkDataSet *data, vtkCell *cell, const double *weights, double normal[3])
static int	ComputeSurfaceTCoord (vtkDataSet *data, vtkCell *cell, const double *weights, double tcoord[3])
static int	HasSubCells (int cellType)
static int	GetNumberOfSubCells (vtkIdList *pointIds, int cellType)
static void	GetSubCell (vtkDataSet *data, vtkIdList *pointIds, int subId, int cellType, vtkGenericCell *cell)
static void	SubCellFromCell (vtkGenericCell *cell, int subId)

Protected Attributes
int	PickCroppingPlanes
int	CroppingPlaneId
Protected Attributes inherited from vtkCellPicker
vtkCollection *	Locators
double	VolumeOpacityIsovalue
int	UseVolumeGradientOpacity
int	PickClippingPlanes
int	ClippingPlaneId
vtkIdType	PointId
vtkIdType	CellId
int	SubId
double	PCoords [3]
int	PointIJK [3]
int	CellIJK [3]
double	PickNormal [3]
double	MapperNormal [3]
vtkTexture *	Texture
int	PickTextureData
Protected Attributes inherited from vtkPicker
double	Tolerance
double	MapperPosition [3]
vtkAbstractMapper3D *	Mapper
vtkDataSet *	DataSet
double	GlobalTMin
vtkTransform *	Transform
vtkActorCollection *	Actors
vtkProp3DCollection *	Prop3Ds
vtkPoints *	PickedPositions
Protected Attributes inherited from vtkAbstractPropPicker
vtkAssemblyPath *	Path
Protected Attributes inherited from vtkAbstractPicker
vtkRenderer *	Renderer
double	SelectionPoint [3]
double	PickPosition [3]
int	PickFromList
vtkPropCollection *	PickList
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Detailed Description

ray-cast picker enhanced for volumes

vtkVolumePicker is a subclass of vtkCellPicker. It has one advantage over vtkCellPicker for volumes: it will be able to correctly perform picking when CroppingPlanes are present. This isn't possible for vtkCellPicker since it doesn't link to the VolumeRendering classes and hence cannot access information about the CroppingPlanes.

See also

vtkPicker vtkPointPicker vtkCellPicker

Thanks:

This class was contributed to VTK by David Gobbi on behalf of Atamai Inc.

Examples:

vtkVolumePicker (Examples)

Tests:

vtkVolumePicker (Tests)

Definition at line 44 of file vtkVolumePicker.h.

Member Typedef Documentation

typedef vtkCellPicker vtkVolumePicker::Superclass

Definition at line 48 of file vtkVolumePicker.h.

Constructor & Destructor Documentation

vtkVolumePicker::vtkVolumePicker ( )

protected

vtkVolumePicker::~vtkVolumePicker ( )

protected

Member Function Documentation

static vtkVolumePicker* vtkVolumePicker::New ( )

static

static int vtkVolumePicker::IsTypeOf ( const char *  type )

static

virtual int vtkVolumePicker::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 vtkCellPicker.

static vtkVolumePicker* vtkVolumePicker::SafeDownCast ( vtkObjectBase *  o )

static

virtual vtkObjectBase* vtkVolumePicker::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkCellPicker.

vtkVolumePicker* vtkVolumePicker::NewInstance

(

)

const

void vtkVolumePicker::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 vtkCellPicker.

virtual void vtkVolumePicker::SetPickCroppingPlanes ( int  )

virtual

Set whether to pick the cropping planes of props that have them. If this is set, then the pick will be done on the cropping planes rather than on the data. The GetCroppingPlaneId() method will return the index of the cropping plane of the volume that was picked. This setting is only relevant to the picking of volumes.

virtual void vtkVolumePicker::PickCroppingPlanesOn ( )

virtual

Set whether to pick the cropping planes of props that have them. If this is set, then the pick will be done on the cropping planes rather than on the data. The GetCroppingPlaneId() method will return the index of the cropping plane of the volume that was picked. This setting is only relevant to the picking of volumes.

virtual void vtkVolumePicker::PickCroppingPlanesOff ( )

virtual

Set whether to pick the cropping planes of props that have them. If this is set, then the pick will be done on the cropping planes rather than on the data. The GetCroppingPlaneId() method will return the index of the cropping plane of the volume that was picked. This setting is only relevant to the picking of volumes.

virtual int vtkVolumePicker::GetPickCroppingPlanes ( )

virtual

Set whether to pick the cropping planes of props that have them. If this is set, then the pick will be done on the cropping planes rather than on the data. The GetCroppingPlaneId() method will return the index of the cropping plane of the volume that was picked. This setting is only relevant to the picking of volumes.

virtual int vtkVolumePicker::GetCroppingPlaneId ( )

virtual

Get the index of the cropping plane that the pick ray passed through on its way to the prop. This will be set regardless of whether PickCroppingPlanes is on. The crop planes are ordered as follows: xmin, xmax, ymin, ymax, zmin, zmax. If the volume is not cropped, the value will bet set to -1.

virtual void vtkVolumePicker::ResetPickInfo ( )

protectedvirtual

Reimplemented from vtkCellPicker.

virtual double vtkVolumePicker::IntersectVolumeWithLine ( const double  p1[3], const double  p2[3], double  t1, double  t2, vtkProp3D *  prop, vtkAbstractVolumeMapper *  mapper  )

protectedvirtual

Reimplemented from vtkCellPicker.

static int vtkVolumePicker::ClipLineWithCroppingRegion ( const double  bounds[6], const int  extent[6], int  flags, const double  x1[3], const double  x2[3], double  t1, double  t2, int &  extentPlaneId, int &  numSegments, double *  t1List, double *  t2List, double *  s1List, int *  planeIdList  )

staticprotected

Member Data Documentation

int vtkVolumePicker::PickCroppingPlanes

protected

Definition at line 91 of file vtkVolumePicker.h.

int vtkVolumePicker::CroppingPlaneId

protected

Definition at line 92 of file vtkVolumePicker.h.

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

• dox/Rendering/Volume/vtkVolumePicker.h