ray-cast cell picker for all kinds of Prop3Ds More...

#include <vtkCellPicker.h>

Inheritance diagram for vtkCellPicker:

Collaboration diagram for vtkCellPicker:

Public Types
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)

vtkCellPicker *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

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

void	PrintSelf (ostream &os, vtkIndent indent)

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 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

	vtkCellPicker ()

	~vtkCellPicker ()

void	Initialize ()

virtual void	ResetPickInfo ()

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	IntersectVolumeWithLine (const double p1[3], const double p2[3], double t1, double t2, vtkProp3D prop, vtkAbstractVolumeMapper 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	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
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 cell picker for all kinds of Prop3Ds

vtkCellPicker will shoot a ray into a 3D scene and return information about the first object that the ray hits. It works for all Prop3Ds. For vtkVolume objects, it shoots a ray into the volume and returns the point where the ray intersects an isosurface of a chosen opacity. For vtkImage objects, it intersects the ray with the displayed slice. For vtkActor objects, it intersects the actor's polygons. If the object's mapper has ClippingPlanes, then it takes the clipping into account, and will return the Id of the clipping plane that was intersected. For all prop types, it returns point and cell information, plus the normal of the surface that was intersected at the pick position. For volumes and images, it also returns (i,j,k) coordinates for the point and the cell that were picked.

See also: vtkPicker vtkPointPicker vtkVolumePicker

Thanks:: This class was contributed to VTK by David Gobbi on behalf of Atamai Inc., as an enhancement to the original vtkCellPicker.

Examples:: vtkCellPicker (Examples)

Tests:: vtkCellPicker (Tests)

Definition at line 68 of file vtkCellPicker.h.

Member Typedef Documentation

typedef vtkPicker vtkCellPicker::Superclass

Definition at line 72 of file vtkCellPicker.h.

Constructor & Destructor Documentation

vtkCellPicker::vtkCellPicker ( )

protected

vtkCellPicker::~vtkCellPicker ( )

protected

Member Function Documentation

static vtkCellPicker* vtkCellPicker::New ( )

static

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

static

virtual int vtkCellPicker::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.

Reimplemented in vtkVolumePicker.

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

static

virtual vtkObjectBase* vtkCellPicker::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkPicker.

Reimplemented in vtkVolumePicker.

vtkCellPicker* vtkCellPicker::NewInstance ( ) const

void vtkCellPicker::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 vtkAbstractPropPicker.

Reimplemented in vtkVolumePicker.

virtual int vtkCellPicker::Pick	(	double	selectionX,
		double	selectionY,
		double	selectionZ,
		vtkRenderer *	renderer
	)

virtual

Perform pick operation with selection point provided. Normally the first two values are the (x,y) pixel coordinates for the pick, and the third value is z=0. The return value will be non-zero if something was successfully picked.

Reimplemented from vtkPicker.

void vtkCellPicker::AddLocator ( vtkAbstractCellLocator * locator )

Add a locator for one of the data sets that will be included in the scene. You must set up the locator with exactly the same data set that was input to the mapper of one or more of the actors in the scene. As well, you must either build the locator before doing the pick, or you must turn on LazyEvaluation in the locator to make it build itself on the first pick. Note that if you try to add the same locator to the picker twice, the second addition will be ignored.

void vtkCellPicker::RemoveLocator ( vtkAbstractCellLocator * locator )

Remove a locator that was previously added. If you try to remove a nonexistent locator, then nothing will happen and no errors will be raised.

void vtkCellPicker::RemoveAllLocators ( )

Remove all locators associated with this picker.

virtual void vtkCellPicker::SetVolumeOpacityIsovalue ( double )

virtual

Set the opacity isovalue to use for defining volume surfaces. The pick will occur at the location along the pick ray where the opacity of the volume is equal to this isovalue. If you want to do the pick based on an actual data isovalue rather than the opacity, then pass the data value through the scalar opacity function before using this method.

virtual double vtkCellPicker::GetVolumeOpacityIsovalue ( )

virtual

Set the opacity isovalue to use for defining volume surfaces. The pick will occur at the location along the pick ray where the opacity of the volume is equal to this isovalue. If you want to do the pick based on an actual data isovalue rather than the opacity, then pass the data value through the scalar opacity function before using this method.

virtual void vtkCellPicker::SetUseVolumeGradientOpacity ( int )

virtual

Use the product of the scalar and gradient opacity functions when computing the opacity isovalue, instead of just using the scalar opacity. This parameter is only relevant to volume picking and is off by default.

virtual void vtkCellPicker::UseVolumeGradientOpacityOn ( )

virtual

Use the product of the scalar and gradient opacity functions when computing the opacity isovalue, instead of just using the scalar opacity. This parameter is only relevant to volume picking and is off by default.

virtual void vtkCellPicker::UseVolumeGradientOpacityOff ( )

virtual

Use the product of the scalar and gradient opacity functions when computing the opacity isovalue, instead of just using the scalar opacity. This parameter is only relevant to volume picking and is off by default.

virtual int vtkCellPicker::GetUseVolumeGradientOpacity ( )

virtual

Use the product of the scalar and gradient opacity functions when computing the opacity isovalue, instead of just using the scalar opacity. This parameter is only relevant to volume picking and is off by default.

virtual void vtkCellPicker::SetPickClippingPlanes ( int )

virtual

The PickClippingPlanes setting controls how clipping planes are handled by the pick. If it is On, then the clipping planes become pickable objects, even though they are usually invisible. This means that if the pick ray intersects a clipping plane before it hits anything else, the pick will stop at that clipping plane. The GetProp3D() and GetMapper() methods will return the Prop3D and Mapper that the clipping plane belongs to. The GetClippingPlaneId() method will return the index of the clipping plane so that you can retrieve it from the mapper, or -1 if no clipping plane was picked.

virtual void vtkCellPicker::PickClippingPlanesOn ( )

virtual

The PickClippingPlanes setting controls how clipping planes are handled by the pick. If it is On, then the clipping planes become pickable objects, even though they are usually invisible. This means that if the pick ray intersects a clipping plane before it hits anything else, the pick will stop at that clipping plane. The GetProp3D() and GetMapper() methods will return the Prop3D and Mapper that the clipping plane belongs to. The GetClippingPlaneId() method will return the index of the clipping plane so that you can retrieve it from the mapper, or -1 if no clipping plane was picked.

virtual void vtkCellPicker::PickClippingPlanesOff ( )

virtual

The PickClippingPlanes setting controls how clipping planes are handled by the pick. If it is On, then the clipping planes become pickable objects, even though they are usually invisible. This means that if the pick ray intersects a clipping plane before it hits anything else, the pick will stop at that clipping plane. The GetProp3D() and GetMapper() methods will return the Prop3D and Mapper that the clipping plane belongs to. The GetClippingPlaneId() method will return the index of the clipping plane so that you can retrieve it from the mapper, or -1 if no clipping plane was picked.

virtual int vtkCellPicker::GetPickClippingPlanes ( )

virtual

The PickClippingPlanes setting controls how clipping planes are handled by the pick. If it is On, then the clipping planes become pickable objects, even though they are usually invisible. This means that if the pick ray intersects a clipping plane before it hits anything else, the pick will stop at that clipping plane. The GetProp3D() and GetMapper() methods will return the Prop3D and Mapper that the clipping plane belongs to. The GetClippingPlaneId() method will return the index of the clipping plane so that you can retrieve it from the mapper, or -1 if no clipping plane was picked.

virtual int vtkCellPicker::GetClippingPlaneId ( )

virtual

Get the index of the clipping plane that was intersected during the pick. This will be set regardless of whether PickClippingPlanes is On, all that is required is that the pick intersected a clipping plane of the Prop3D that was picked. The result will be -1 if the Prop3D that was picked has no clipping planes, or if the ray didn't intersect the planes.

virtual double* vtkCellPicker::GetPickNormal ( )

virtual

Return the normal of the picked surface at the PickPosition. If no surface was picked, then a vector pointing back at the camera is returned.

virtual void vtkCellPicker::GetPickNormal ( double data[3] )

virtual

Return the normal of the picked surface at the PickPosition. If no surface was picked, then a vector pointing back at the camera is returned.

virtual double* vtkCellPicker::GetMapperNormal ( )

virtual

Return the normal of the surface at the PickPosition in mapper coordinates. The result is undefined if no prop was picked.

virtual void vtkCellPicker::GetMapperNormal	(	double &	,
		double &	,
		double &
	)

virtual

Return the normal of the surface at the PickPosition in mapper coordinates. The result is undefined if no prop was picked.

virtual void vtkCellPicker::GetMapperNormal ( double [3] )

virtual

Return the normal of the surface at the PickPosition in mapper coordinates. The result is undefined if no prop was picked.

virtual int* vtkCellPicker::GetPointIJK ( )

virtual

Get the structured coordinates of the point at the PickPosition. Only valid for image actors and volumes with vtkImageData.

virtual void vtkCellPicker::GetPointIJK	(	int &	,
		int &	,
		int &
	)

virtual

Get the structured coordinates of the point at the PickPosition. Only valid for image actors and volumes with vtkImageData.

virtual void vtkCellPicker::GetPointIJK ( int [3] )

virtual

Get the structured coordinates of the point at the PickPosition. Only valid for image actors and volumes with vtkImageData.

virtual int* vtkCellPicker::GetCellIJK ( )

virtual

Get the structured coordinates of the cell at the PickPosition. Only valid for image actors and volumes with vtkImageData. Combine this with the PCoords to get the position within the cell.

virtual void vtkCellPicker::GetCellIJK	(	int &	,
		int &	,
		int &
	)

virtual

Get the structured coordinates of the cell at the PickPosition. Only valid for image actors and volumes with vtkImageData. Combine this with the PCoords to get the position within the cell.

virtual void vtkCellPicker::GetCellIJK ( int [3] )

virtual

Get the structured coordinates of the cell at the PickPosition. Only valid for image actors and volumes with vtkImageData. Combine this with the PCoords to get the position within the cell.

virtual vtkIdType vtkCellPicker::GetPointId ( )

virtual

Get the id of the picked point. If PointId = -1, nothing was picked. This point will be a member of any cell that is picked.

virtual vtkIdType vtkCellPicker::GetCellId ( )

virtual

Get the id of the picked cell. If CellId = -1, nothing was picked.

virtual int vtkCellPicker::GetSubId ( )

virtual

Get the subId of the picked cell. This is useful, for example, if the data is made of triangle strips. If SubId = -1, nothing was picked.

virtual double* vtkCellPicker::GetPCoords ( )

virtual

Get the parametric coordinates of the picked cell. Only valid if a prop was picked. The PCoords can be used to compute the weights that are needed to interpolate data values within the cell.

virtual void vtkCellPicker::GetPCoords	(	double &	,
		double &	,
		double &
	)

virtual

Get the parametric coordinates of the picked cell. Only valid if a prop was picked. The PCoords can be used to compute the weights that are needed to interpolate data values within the cell.

virtual void vtkCellPicker::GetPCoords ( double [3] )

virtual

Get the parametric coordinates of the picked cell. Only valid if a prop was picked. The PCoords can be used to compute the weights that are needed to interpolate data values within the cell.

vtkTexture* vtkCellPicker::GetTexture ( )

inline

Get the texture that was picked. This will always be set if the picked prop has a texture, and will always be null otherwise.

Definition at line 199 of file vtkCellPicker.h.

virtual void vtkCellPicker::SetPickTextureData ( int )

virtual

If this is "On" and if the picked prop has a texture, then the data returned by GetDataSet() will be the texture's data instead of the mapper's data. The GetPointId(), GetCellId(), GetPCoords() etc. will all return information for use with the texture's data. If the picked prop does not have any texture, then GetDataSet() will return the mapper's data instead and GetPointId() etc. will return information related to the mapper's data. The default value of PickTextureData is "Off".

virtual void vtkCellPicker::PickTextureDataOn ( )

virtual

If this is "On" and if the picked prop has a texture, then the data returned by GetDataSet() will be the texture's data instead of the mapper's data. The GetPointId(), GetCellId(), GetPCoords() etc. will all return information for use with the texture's data. If the picked prop does not have any texture, then GetDataSet() will return the mapper's data instead and GetPointId() etc. will return information related to the mapper's data. The default value of PickTextureData is "Off".

virtual void vtkCellPicker::PickTextureDataOff ( )

virtual

If this is "On" and if the picked prop has a texture, then the data returned by GetDataSet() will be the texture's data instead of the mapper's data. The GetPointId(), GetCellId(), GetPCoords() etc. will all return information for use with the texture's data. If the picked prop does not have any texture, then GetDataSet() will return the mapper's data instead and GetPointId() etc. will return information related to the mapper's data. The default value of PickTextureData is "Off".

virtual int vtkCellPicker::GetPickTextureData ( )

virtual

If this is "On" and if the picked prop has a texture, then the data returned by GetDataSet() will be the texture's data instead of the mapper's data. The GetPointId(), GetCellId(), GetPCoords() etc. will all return information for use with the texture's data. If the picked prop does not have any texture, then GetDataSet() will return the mapper's data instead and GetPointId() etc. will return information related to the mapper's data. The default value of PickTextureData is "Off".

void vtkCellPicker::Initialize ( )

protectedvirtual

Reimplemented from vtkPicker.

virtual void vtkCellPicker::ResetPickInfo ( )

protectedvirtual

Reimplemented in vtkVolumePicker.

virtual double vtkCellPicker::IntersectWithLine	(	double	p1[3],
		double	p2[3],
		double	tol,
		vtkAssemblyPath *	path,
		vtkProp3D *	p,
		vtkAbstractMapper3D *	m
	)

protectedvirtual

Reimplemented from vtkPicker.

virtual double vtkCellPicker::IntersectActorWithLine	(	const double	p1[3],
		const double	p2[3],
		double	t1,
		double	t2,
		double	tol,
		vtkProp3D *	prop,
		vtkMapper *	mapper
	)

protectedvirtual

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

protectedvirtual

Reimplemented in vtkVolumePicker.

virtual double vtkCellPicker::IntersectImageWithLine	(	const double	p1[3],
		const double	p2[3],
		double	t1,
		double	t2,
		vtkProp3D *	prop,
		vtkImageMapper3D *	mapper
	)

protectedvirtual

virtual double vtkCellPicker::IntersectProp3DWithLine	(	const double	p1[3],
		const double	p2[3],
		double	t1,
		double	t2,
		double	tol,
		vtkProp3D *	prop,
		vtkAbstractMapper3D *	mapper
	)

protectedvirtual

static int vtkCellPicker::ClipLineWithPlanes	(	vtkAbstractMapper3D *	mapper,
		vtkMatrix4x4 *	propMatrix,
		const double	p1[3],
		const double	p2[3],
		double &	t1,
		double &	t2,
		int &	planeId
	)

staticprotected

static int vtkCellPicker::ClipLineWithExtent	(	const int	extent[6],
		const double	x1[3],
		const double	x2[3],
		double &	t1,
		double &	t2,
		int &	planeId
	)

staticprotected

static int vtkCellPicker::ComputeSurfaceNormal	(	vtkDataSet *	data,
		vtkCell *	cell,
		const double *	weights,
		double	normal[3]
	)

staticprotected

static int vtkCellPicker::ComputeSurfaceTCoord	(	vtkDataSet *	data,
		vtkCell *	cell,
		const double *	weights,
		double	tcoord[3]
	)

staticprotected

static int vtkCellPicker::HasSubCells ( int cellType )

staticprotected

static int vtkCellPicker::GetNumberOfSubCells	(	vtkIdList *	pointIds,
		int	cellType
	)

staticprotected

static void vtkCellPicker::GetSubCell	(	vtkDataSet *	data,
		vtkIdList *	pointIds,
		int	subId,
		int	cellType,
		vtkGenericCell *	cell
	)

staticprotected

static void vtkCellPicker::SubCellFromCell	(	vtkGenericCell *	cell,
		int	subId
	)

staticprotected

void vtkCellPicker::SetImageDataPickInfo	(	const double	x[3],
		const int	extent[6]
	)

protected

double vtkCellPicker::ComputeVolumeOpacity	(	const int	xi[3],
		const double	pcoords[3],
		vtkImageData *	data,
		vtkDataArray *	scalars,
		vtkPiecewiseFunction *	scalarOpacity,
		vtkPiecewiseFunction *	gradientOpacity
	)

protected

Member Data Documentation

vtkCollection* vtkCellPicker::Locators

protected

Definition at line 280 of file vtkCellPicker.h.

double vtkCellPicker::VolumeOpacityIsovalue

protected

Definition at line 282 of file vtkCellPicker.h.

int vtkCellPicker::UseVolumeGradientOpacity

protected

Definition at line 283 of file vtkCellPicker.h.

int vtkCellPicker::PickClippingPlanes

protected

Definition at line 284 of file vtkCellPicker.h.

int vtkCellPicker::ClippingPlaneId

protected

Definition at line 285 of file vtkCellPicker.h.

vtkIdType vtkCellPicker::PointId

protected

Definition at line 287 of file vtkCellPicker.h.

vtkIdType vtkCellPicker::CellId

protected

Definition at line 288 of file vtkCellPicker.h.

int vtkCellPicker::SubId

protected

Definition at line 289 of file vtkCellPicker.h.

double vtkCellPicker::PCoords[3]

protected

Definition at line 290 of file vtkCellPicker.h.

int vtkCellPicker::PointIJK[3]

protected

Definition at line 292 of file vtkCellPicker.h.

int vtkCellPicker::CellIJK[3]

protected

Definition at line 293 of file vtkCellPicker.h.

double vtkCellPicker::PickNormal[3]

protected

Definition at line 295 of file vtkCellPicker.h.

double vtkCellPicker::MapperNormal[3]

protected

Definition at line 296 of file vtkCellPicker.h.

vtkTexture* vtkCellPicker::Texture

protected

Definition at line 298 of file vtkCellPicker.h.

int vtkCellPicker::PickTextureData

protected

Definition at line 299 of file vtkCellPicker.h.

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

dox/Rendering/Core/vtkCellPicker.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation