represents the common properties for rendering a volume. More...

#include <vtkVolumeProperty.h>

Inheritance diagram for vtkVolumeProperty:

Collaboration diagram for vtkVolumeProperty:

Public Types
typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

vtkVolumeProperty *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

void	DeepCopy (vtkVolumeProperty *p)

vtkMTimeType	GetMTime () override
	Get the modified time for this object (or the properties registered with this object). More...

void	SetColor (int index, vtkPiecewiseFunction *function)
	Set the color of a volume to a gray level transfer function for the component indicated by index. More...

void	SetColor (vtkPiecewiseFunction *function)

void	SetColor (int index, vtkColorTransferFunction *function)
	Set the color of a volume to an RGB transfer function for the component indicated by index. More...

void	SetColor (vtkColorTransferFunction *function)

int	GetColorChannels (int index)
	Get the number of color channels in the transfer function for the given component. More...

int	GetColorChannels ()

vtkPiecewiseFunction *	GetGrayTransferFunction (int index)
	Get the gray transfer function. More...

vtkPiecewiseFunction *	GetGrayTransferFunction ()

vtkColorTransferFunction *	GetRGBTransferFunction (int index)
	Get the RGB transfer function for the given component. More...

vtkColorTransferFunction *	GetRGBTransferFunction ()

void	SetScalarOpacity (int index, vtkPiecewiseFunction *function)
	Set the opacity of a volume to an opacity transfer function based on scalar value for the component indicated by index. More...

void	SetScalarOpacity (vtkPiecewiseFunction *function)

vtkPiecewiseFunction *	GetScalarOpacity (int index)
	Get the scalar opacity transfer function for the given component. More...

vtkPiecewiseFunction *	GetScalarOpacity ()

void	SetGradientOpacity (int index, vtkPiecewiseFunction *function)
	Set the opacity of a volume to an opacity transfer function based on gradient magnitude for the given component. More...

void	SetGradientOpacity (vtkPiecewiseFunction *function)

vtkPiecewiseFunction *	GetGradientOpacity (int index)
	Get the gradient magnitude opacity transfer function for the given component. More...

vtkPiecewiseFunction *	GetGradientOpacity ()

bool	HasGradientOpacity (int index=0)
	Check whether or not we have the gradient opacity. More...

vtkContourValues *	GetIsoSurfaceValues ()
	Get contour values for isosurface blending mode. More...

void	UpdateMTimes ()
	WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE UpdateMTimes performs a Modified() on all TimeStamps. More...

vtkTimeStamp	GetGradientOpacityMTime (int index)
	WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Get the time that the gradient opacity transfer function was set. More...

vtkTimeStamp	GetGradientOpacityMTime ()

vtkTimeStamp	GetScalarOpacityMTime (int index)
	WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Get the time that the scalar opacity transfer function was set. More...

vtkTimeStamp	GetScalarOpacityMTime ()

vtkTimeStamp	GetRGBTransferFunctionMTime (int index)
	WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Get the time that the RGBTransferFunction was set. More...

vtkTimeStamp	GetRGBTransferFunctionMTime ()

vtkTimeStamp	GetGrayTransferFunctionMTime (int index)
	WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Get the time that the GrayTransferFunction was set. More...

vtkTimeStamp	GetGrayTransferFunctionMTime ()


virtual void	SetIndependentComponents (vtkTypeBool)
	Does the data have independent components, or do some define color only? If IndependentComponents is On (the default) then each component will be independently passed through a lookup table to determine RGBA, shaded. More...

virtual vtkTypeBool	GetIndependentComponents ()
	Does the data have independent components, or do some define color only? If IndependentComponents is On (the default) then each component will be independently passed through a lookup table to determine RGBA, shaded. More...

virtual void	IndependentComponentsOn ()
	Does the data have independent components, or do some define color only? If IndependentComponents is On (the default) then each component will be independently passed through a lookup table to determine RGBA, shaded. More...

virtual void	IndependentComponentsOff ()
	Does the data have independent components, or do some define color only? If IndependentComponents is On (the default) then each component will be independently passed through a lookup table to determine RGBA, shaded. More...


virtual void	SetInterpolationType (int)
	Set the interpolation type for sampling a volume. More...

virtual int	GetInterpolationType ()
	Set the interpolation type for sampling a volume. More...

void	SetInterpolationTypeToNearest ()
	Set the interpolation type for sampling a volume. More...

void	SetInterpolationTypeToLinear ()
	Set the interpolation type for sampling a volume. More...

const char *	GetInterpolationTypeAsString (void)
	Return the interpolation type as a descriptive character string. More...


virtual void	SetComponentWeight (int index, double value)
	Set/Get the scalar component weights. More...

virtual double	GetComponentWeight (int index)
	Set/Get the scalar component weights. More...


void	SetScalarOpacityUnitDistance (int index, double distance)
	Set/Get the unit distance on which the scalar opacity transfer function is defined. More...

void	SetScalarOpacityUnitDistance (double distance)
	Set/Get the unit distance on which the scalar opacity transfer function is defined. More...

double	GetScalarOpacityUnitDistance (int index)
	Set/Get the unit distance on which the scalar opacity transfer function is defined. More...

double	GetScalarOpacityUnitDistance ()
	Set/Get the unit distance on which the scalar opacity transfer function is defined. More...


virtual void	SetDisableGradientOpacity (int index, int value)
	Enable/Disable the gradient opacity function for the given component. More...

virtual void	SetDisableGradientOpacity (int value)
	Enable/Disable the gradient opacity function for the given component. More...

virtual void	DisableGradientOpacityOn (int index)
	Enable/Disable the gradient opacity function for the given component. More...

virtual void	DisableGradientOpacityOn ()
	Enable/Disable the gradient opacity function for the given component. More...

virtual void	DisableGradientOpacityOff (int index)
	Enable/Disable the gradient opacity function for the given component. More...

virtual void	DisableGradientOpacityOff ()
	Enable/Disable the gradient opacity function for the given component. More...

virtual int	GetDisableGradientOpacity (int index)
	Enable/Disable the gradient opacity function for the given component. More...

virtual int	GetDisableGradientOpacity ()
	Enable/Disable the gradient opacity function for the given component. More...

vtkPiecewiseFunction *	GetStoredGradientOpacity (int index)
	Enable/Disable the gradient opacity function for the given component. More...

vtkPiecewiseFunction *	GetStoredGradientOpacity ()
	Enable/Disable the gradient opacity function for the given component. More...


void	SetShade (int index, int value)
	Set/Get the shading of a volume. More...

void	SetShade (int value)
	Set/Get the shading of a volume. More...

int	GetShade (int index)
	Set/Get the shading of a volume. More...

int	GetShade ()
	Set/Get the shading of a volume. More...

void	ShadeOn (int index)
	Set/Get the shading of a volume. More...

void	ShadeOn ()
	Set/Get the shading of a volume. More...

void	ShadeOff (int index)
	Set/Get the shading of a volume. More...

void	ShadeOff ()
	Set/Get the shading of a volume. More...


void	SetAmbient (int index, double value)
	Set/Get the ambient lighting coefficient. More...

void	SetAmbient (double value)
	Set/Get the ambient lighting coefficient. More...

double	GetAmbient (int index)
	Set/Get the ambient lighting coefficient. More...

double	GetAmbient ()
	Set/Get the ambient lighting coefficient. More...


void	SetDiffuse (int index, double value)
	Set/Get the diffuse lighting coefficient. More...

void	SetDiffuse (double value)
	Set/Get the diffuse lighting coefficient. More...

double	GetDiffuse (int index)
	Set/Get the diffuse lighting coefficient. More...

double	GetDiffuse ()
	Set/Get the diffuse lighting coefficient. More...


void	SetSpecular (int index, double value)
	Set/Get the specular lighting coefficient. More...

void	SetSpecular (double value)
	Set/Get the specular lighting coefficient. More...

double	GetSpecular (int index)
	Set/Get the specular lighting coefficient. More...

double	GetSpecular ()
	Set/Get the specular lighting coefficient. More...


void	SetSpecularPower (int index, double value)
	Set/Get the specular power. More...

void	SetSpecularPower (double value)
	Set/Get the specular power. More...

double	GetSpecularPower (int index)
	Set/Get the specular power. More...

double	GetSpecularPower ()
	Set/Get the specular power. More...


virtual void	SetUseClippedVoxelIntensity (int)
	Set/Get whether to use a fixed intensity value for voxels in the clipped space for gradient calculations. More...

virtual int	GetUseClippedVoxelIntensity ()
	Set/Get whether to use a fixed intensity value for voxels in the clipped space for gradient calculations. More...

virtual void	UseClippedVoxelIntensityOn ()
	Set/Get whether to use a fixed intensity value for voxels in the clipped space for gradient calculations. More...

virtual void	UseClippedVoxelIntensityOff ()
	Set/Get whether to use a fixed intensity value for voxels in the clipped space for gradient calculations. More...


virtual void	SetClippedVoxelIntensity (double)
	Set/Get the intensity value for voxels in the clipped space for gradient computations (for shading and gradient based opacity modulation). More...

virtual double	GetClippedVoxelIntensity ()
	Set/Get the intensity value for voxels in the clipped space for gradient computations (for shading and gradient based opacity modulation). More...

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

bool	GetDebug ()
	Get the value of the debug flag. More...

void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...

virtual void	Modified ()
	Update the modification time for this object. More...

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

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. More...

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. More...

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. More...

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

int	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not. More...

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. More...

virtual void	Delete ()
	Delete a VTK object. More...

virtual void	FastDelete ()
	Delete a reference to this object. More...

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream. More...

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...

int	GetReferenceCount ()
	Return the current reference count of this object. More...

void	SetReferenceCount (int)
	Sets the reference count. More...

void	PrintRevisions (ostream &)
	Legacy. More...

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

Static Public Member Functions
static vtkVolumeProperty *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkVolumeProperty *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkVolumeProperty ()

	~vtkVolumeProperty () override

vtkTimeStamp	GetTransferFunction2DMTime (int index)
	WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Get the time when the TransferFunction2D was set. More...

vtkTimeStamp	GetTransferFunction2DMTime ()

virtual void	CreateDefaultGradientOpacity (int index)

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events. More...

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events. More...

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkTypeBool	IndependentComponents

double	ComponentWeight [VTK_MAX_VRCOMP]

int	InterpolationType

int	ColorChannels [VTK_MAX_VRCOMP]

vtkPiecewiseFunction *	GrayTransferFunction [VTK_MAX_VRCOMP]

vtkTimeStamp	GrayTransferFunctionMTime [VTK_MAX_VRCOMP]

vtkColorTransferFunction *	RGBTransferFunction [VTK_MAX_VRCOMP]

vtkTimeStamp	RGBTransferFunctionMTime [VTK_MAX_VRCOMP]

vtkPiecewiseFunction *	ScalarOpacity [VTK_MAX_VRCOMP]

vtkTimeStamp	ScalarOpacityMTime [VTK_MAX_VRCOMP]

double	ScalarOpacityUnitDistance [VTK_MAX_VRCOMP]

vtkPiecewiseFunction *	GradientOpacity [VTK_MAX_VRCOMP]

vtkTimeStamp	GradientOpacityMTime [VTK_MAX_VRCOMP]

vtkPiecewiseFunction *	DefaultGradientOpacity [VTK_MAX_VRCOMP]

int	DisableGradientOpacity [VTK_MAX_VRCOMP]

int	TransferFunctionMode

vtkImageData *	TransferFunction2D [VTK_MAX_VRCOMP]

vtkTimeStamp	TransferFunction2DMTime [VTK_MAX_VRCOMP]

int	Shade [VTK_MAX_VRCOMP]

double	Ambient [VTK_MAX_VRCOMP]

double	Diffuse [VTK_MAX_VRCOMP]

double	Specular [VTK_MAX_VRCOMP]

double	SpecularPower [VTK_MAX_VRCOMP]

double	ClippedVoxelIntensity

int	UseClippedVoxelIntensity

vtkNew< vtkContourValues >	IsoSurfaceValues
	Contour values for isosurface blend mode. More...

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

enum	TransferMode { TF_1D = 0, TF_2D }
	Color-opacity transfer function mode. More...

void	SetTransferFunction2D (int index, vtkImageData *function)
	Set/Get a 2D transfer function. More...

void	SetTransferFunction2D (vtkImageData *function)
	Color-opacity transfer function mode. More...

vtkImageData *	GetTransferFunction2D (int index)
	Color-opacity transfer function mode. More...

vtkImageData *	GetTransferFunction2D ()
	Color-opacity transfer function mode. More...

virtual void	SetTransferFunctionMode (int)
	Color-opacity transfer function mode. More...

virtual int	GetTransferFunctionMode ()
	Color-opacity transfer function mode. More...

Detailed Description

represents the common properties for rendering a volume.

vtkVolumeProperty is used to represent common properties associated with volume rendering. This includes properties for determining the type of interpolation to use when sampling a volume, the color of a volume, the scalar opacity of a volume, the gradient opacity of a volume, and the shading parameters of a volume.

Color, scalar opacity and gradient magnitude opacity transfer functions can be set as either 3 separate 1D functions or as a single 2D transfer function.

1D Transfer functions (vtkVolumeProperty::TF_1D) Color, scalar opacity and gradient magnitude opacity are defined by 1 vtkColorTransferFunction and 2 vtkPiecewiseFunctions respectively. When the scalar opacity or the gradient opacity of a volume is not set, then the function is defined to be a constant value of 1.0. When a scalar and gradient opacity are both set simultaneously, then the opacity is defined to be the product of the scalar opacity and gradient opacity transfer functions. 1D transfer functions is the legacy and default behavior.
2D Transfer functions (vtkVolumeProperty::TF_2D) Color and scalar/gradient magnitude opacity are defined by a 4-component vtkImageData instance mapping scalar value vs. gradient magnitude on its x and y axis respectively. This mode is only available if a 2D TF has been explicitly set (see SetTransferFunction2D).

Most properties can be set per "component" for volume mappers that support multiple independent components. If you are using 2 component data as LV or 4 component data as RGBV (as specified in the mapper) only the first scalar opacity and gradient opacity transfer functions will be used (and all color functions will be ignored). Omitting the index parameter on the Set/Get methods will access index = 0.

See also: vtkPiecewiseFunction vtkColorTransferFunction

Definition at line 68 of file vtkVolumeProperty.h.

Member Typedef Documentation

typedef vtkObject vtkVolumeProperty::Superclass

Definition at line 72 of file vtkVolumeProperty.h.

Member Enumeration Documentation

enum vtkVolumeProperty::TransferMode

Color-opacity transfer function mode.

TF_1D is its default value.

TF_1D Mappers will use 3 separate 1D functions for color, scalar opacity and gradient mag. opacity.
TF_2D Mappers will use a single 2D function for color and scalar/gradient mag. opacity.

Enumerator
TF_1D
TF_2D

Definition at line 245 of file vtkVolumeProperty.h.

Constructor & Destructor Documentation

vtkVolumeProperty::vtkVolumeProperty ( )

protected

vtkVolumeProperty::~vtkVolumeProperty ( )

overrideprotected

Member Function Documentation

static vtkVolumeProperty* vtkVolumeProperty::New ( )

static

static vtkTypeBool vtkVolumeProperty::IsTypeOf ( const char * type )

static

virtual vtkTypeBool vtkVolumeProperty::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 vtkObjectBase.

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

static

virtual vtkObjectBase* vtkVolumeProperty::NewInstanceInternal ( ) const

protectedvirtual

vtkVolumeProperty* vtkVolumeProperty::NewInstance ( ) const

void vtkVolumeProperty::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

overridevirtual

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.

void vtkVolumeProperty::DeepCopy ( vtkVolumeProperty * p )

vtkMTimeType vtkVolumeProperty::GetMTime ( )

overridevirtual

Get the modified time for this object (or the properties registered with this object).

Reimplemented from vtkObject.

virtual void vtkVolumeProperty::SetIndependentComponents ( vtkTypeBool )

virtual

Does the data have independent components, or do some define color only? If IndependentComponents is On (the default) then each component will be independently passed through a lookup table to determine RGBA, shaded.

Some volume Mappers can handle 1 to 4 component unsigned char or unsigned short data (see each mapper header file to determine functionality). If IndependentComponents is Off, then you must have either 2 or 4 component data. For 2 component data, the first is passed through the first color transfer function and the second component is passed through the first scalar opacity (and gradient opacity) transfer function. Normals will be generated off of the second component. When using gradient based opacity modulation, the gradients are computed off of the second component. For 4 component data, the first three will directly represent RGB (no lookup table). The fourth component will be passed through the first scalar opacity transfer function for opacity and first gradient opacity transfer function for gradient based opacity modulation. Normals will be generated from the fourth component. When using gradient based opacity modulation, the gradients are computed off of the fourth component.

virtual vtkTypeBool vtkVolumeProperty::GetIndependentComponents ( )

virtual

Does the data have independent components, or do some define color only? If IndependentComponents is On (the default) then each component will be independently passed through a lookup table to determine RGBA, shaded.

Some volume Mappers can handle 1 to 4 component unsigned char or unsigned short data (see each mapper header file to determine functionality). If IndependentComponents is Off, then you must have either 2 or 4 component data. For 2 component data, the first is passed through the first color transfer function and the second component is passed through the first scalar opacity (and gradient opacity) transfer function. Normals will be generated off of the second component. When using gradient based opacity modulation, the gradients are computed off of the second component. For 4 component data, the first three will directly represent RGB (no lookup table). The fourth component will be passed through the first scalar opacity transfer function for opacity and first gradient opacity transfer function for gradient based opacity modulation. Normals will be generated from the fourth component. When using gradient based opacity modulation, the gradients are computed off of the fourth component.

virtual void vtkVolumeProperty::IndependentComponentsOn ( )

virtual

Does the data have independent components, or do some define color only? If IndependentComponents is On (the default) then each component will be independently passed through a lookup table to determine RGBA, shaded.

Some volume Mappers can handle 1 to 4 component unsigned char or unsigned short data (see each mapper header file to determine functionality). If IndependentComponents is Off, then you must have either 2 or 4 component data. For 2 component data, the first is passed through the first color transfer function and the second component is passed through the first scalar opacity (and gradient opacity) transfer function. Normals will be generated off of the second component. When using gradient based opacity modulation, the gradients are computed off of the second component. For 4 component data, the first three will directly represent RGB (no lookup table). The fourth component will be passed through the first scalar opacity transfer function for opacity and first gradient opacity transfer function for gradient based opacity modulation. Normals will be generated from the fourth component. When using gradient based opacity modulation, the gradients are computed off of the fourth component.

virtual void vtkVolumeProperty::IndependentComponentsOff ( )

virtual

Does the data have independent components, or do some define color only? If IndependentComponents is On (the default) then each component will be independently passed through a lookup table to determine RGBA, shaded.

Some volume Mappers can handle 1 to 4 component unsigned char or unsigned short data (see each mapper header file to determine functionality). If IndependentComponents is Off, then you must have either 2 or 4 component data. For 2 component data, the first is passed through the first color transfer function and the second component is passed through the first scalar opacity (and gradient opacity) transfer function. Normals will be generated off of the second component. When using gradient based opacity modulation, the gradients are computed off of the second component. For 4 component data, the first three will directly represent RGB (no lookup table). The fourth component will be passed through the first scalar opacity transfer function for opacity and first gradient opacity transfer function for gradient based opacity modulation. Normals will be generated from the fourth component. When using gradient based opacity modulation, the gradients are computed off of the fourth component.

virtual void vtkVolumeProperty::SetInterpolationType ( int )

virtual

Set the interpolation type for sampling a volume.

Initial value is VTK_NEAREST_INTERPOLATION.

virtual int vtkVolumeProperty::GetInterpolationType ( )

virtual

Set the interpolation type for sampling a volume.

Initial value is VTK_NEAREST_INTERPOLATION.

void vtkVolumeProperty::SetInterpolationTypeToNearest ( )

inline

Set the interpolation type for sampling a volume.

Initial value is VTK_NEAREST_INTERPOLATION.

Definition at line 117 of file vtkVolumeProperty.h.

void vtkVolumeProperty::SetInterpolationTypeToLinear ( )

inline

Set the interpolation type for sampling a volume.

Initial value is VTK_NEAREST_INTERPOLATION.

Definition at line 119 of file vtkVolumeProperty.h.

const char * vtkVolumeProperty::GetInterpolationTypeAsString ( void )

inline

Return the interpolation type as a descriptive character string.

Definition at line 534 of file vtkVolumeProperty.h.

virtual void vtkVolumeProperty::SetComponentWeight	(	int	index,
		double	value
	)

virtual

Set/Get the scalar component weights.

Clamped between the range of (0.0, 1.0)

virtual double vtkVolumeProperty::GetComponentWeight ( int index )

virtual

Set/Get the scalar component weights.

Clamped between the range of (0.0, 1.0)

void vtkVolumeProperty::SetColor	(	int	index,
		vtkPiecewiseFunction *	function
	)

Set the color of a volume to a gray level transfer function for the component indicated by index.

This will set the color channels for this component to 1.

void vtkVolumeProperty::SetColor ( vtkPiecewiseFunction * function )

inline

Definition at line 139 of file vtkVolumeProperty.h.

void vtkVolumeProperty::SetColor	(	int	index,
		vtkColorTransferFunction *	function
	)

Set the color of a volume to an RGB transfer function for the component indicated by index.

This will set the color channels for this component to 3. This will also recompute the color channels

void vtkVolumeProperty::SetColor ( vtkColorTransferFunction * function )

inline

Definition at line 149 of file vtkVolumeProperty.h.

int vtkVolumeProperty::GetColorChannels ( int index )

Get the number of color channels in the transfer function for the given component.

int vtkVolumeProperty::GetColorChannels ( )

inline

Definition at line 157 of file vtkVolumeProperty.h.

vtkPiecewiseFunction* vtkVolumeProperty::GetGrayTransferFunction ( int index )

Get the gray transfer function.

If no transfer function has been set for this component, a default one is created and returned.

vtkPiecewiseFunction* vtkVolumeProperty::GetGrayTransferFunction ( )

inline

Definition at line 166 of file vtkVolumeProperty.h.

vtkColorTransferFunction* vtkVolumeProperty::GetRGBTransferFunction ( int index )

Get the RGB transfer function for the given component.

If no transfer function has been set for this component, a default one is created and returned.

vtkColorTransferFunction* vtkVolumeProperty::GetRGBTransferFunction ( )

inline

Definition at line 175 of file vtkVolumeProperty.h.

void vtkVolumeProperty::SetScalarOpacity	(	int	index,
		vtkPiecewiseFunction *	function
	)

Set the opacity of a volume to an opacity transfer function based on scalar value for the component indicated by index.

void vtkVolumeProperty::SetScalarOpacity ( vtkPiecewiseFunction * function )

inline

Definition at line 183 of file vtkVolumeProperty.h.

vtkPiecewiseFunction* vtkVolumeProperty::GetScalarOpacity ( int index )

Get the scalar opacity transfer function for the given component.

If no transfer function has been set for this component, a default one is created and returned.

vtkPiecewiseFunction* vtkVolumeProperty::GetScalarOpacity ( )

inline

Definition at line 192 of file vtkVolumeProperty.h.

void vtkVolumeProperty::SetScalarOpacityUnitDistance	(	int	index,
		double	distance
	)

Set/Get the unit distance on which the scalar opacity transfer function is defined.

By default this is 1.0, meaning that over a distance of 1.0 units, a given opacity (from the transfer function) is accumulated. This is adjusted for the actual sampling distance during rendering.

void vtkVolumeProperty::SetScalarOpacityUnitDistance ( double distance )

inline

Set/Get the unit distance on which the scalar opacity transfer function is defined.

By default this is 1.0, meaning that over a distance of 1.0 units, a given opacity (from the transfer function) is accumulated. This is adjusted for the actual sampling distance during rendering.

Definition at line 203 of file vtkVolumeProperty.h.

double vtkVolumeProperty::GetScalarOpacityUnitDistance ( int index )

Set/Get the unit distance on which the scalar opacity transfer function is defined.

By default this is 1.0, meaning that over a distance of 1.0 units, a given opacity (from the transfer function) is accumulated. This is adjusted for the actual sampling distance during rendering.

double vtkVolumeProperty::GetScalarOpacityUnitDistance ( )

inline

Set/Get the unit distance on which the scalar opacity transfer function is defined.

By default this is 1.0, meaning that over a distance of 1.0 units, a given opacity (from the transfer function) is accumulated. This is adjusted for the actual sampling distance during rendering.

Definition at line 206 of file vtkVolumeProperty.h.

void vtkVolumeProperty::SetGradientOpacity	(	int	index,
		vtkPiecewiseFunction *	function
	)

Set the opacity of a volume to an opacity transfer function based on gradient magnitude for the given component.

void vtkVolumeProperty::SetGradientOpacity ( vtkPiecewiseFunction * function )

inline

Definition at line 216 of file vtkVolumeProperty.h.

void vtkVolumeProperty::SetTransferFunction2D	(	int	index,
		vtkImageData *	function
	)

Set/Get a 2D transfer function.

Volume mappers interpret the x-axis of of this transfer function as scalar value and the y-axis as gradient magnitude. The value at (X, Y) corresponds to the color and opacity for a salar value of X and a gradient magnitude of Y.

void vtkVolumeProperty::SetTransferFunction2D ( vtkImageData * function )

inline

Color-opacity transfer function mode.

TF_1D is its default value.

TF_1D Mappers will use 3 separate 1D functions for color, scalar opacity and gradient mag. opacity.
TF_2D Mappers will use a single 2D function for color and scalar/gradient mag. opacity.

Definition at line 227 of file vtkVolumeProperty.h.

vtkImageData* vtkVolumeProperty::GetTransferFunction2D ( int index )

Color-opacity transfer function mode.

TF_1D is its default value.

TF_1D Mappers will use 3 separate 1D functions for color, scalar opacity and gradient mag. opacity.
TF_2D Mappers will use a single 2D function for color and scalar/gradient mag. opacity.

vtkImageData* vtkVolumeProperty::GetTransferFunction2D ( )

inline

Color-opacity transfer function mode.

TF_1D is its default value.

TF_1D Mappers will use 3 separate 1D functions for color, scalar opacity and gradient mag. opacity.
TF_2D Mappers will use a single 2D function for color and scalar/gradient mag. opacity.

Definition at line 233 of file vtkVolumeProperty.h.

virtual void vtkVolumeProperty::SetTransferFunctionMode ( int )

virtual

Color-opacity transfer function mode.

TF_1D is its default value.

TF_1D Mappers will use 3 separate 1D functions for color, scalar opacity and gradient mag. opacity.
TF_2D Mappers will use a single 2D function for color and scalar/gradient mag. opacity.

virtual int vtkVolumeProperty::GetTransferFunctionMode ( )

virtual

Color-opacity transfer function mode.

TF_1D is its default value.

TF_1D Mappers will use 3 separate 1D functions for color, scalar opacity and gradient mag. opacity.
TF_2D Mappers will use a single 2D function for color and scalar/gradient mag. opacity.

vtkPiecewiseFunction* vtkVolumeProperty::GetGradientOpacity ( int index )

Get the gradient magnitude opacity transfer function for the given component.

If no transfer function has been set for this component, a default one is created and returned. This default function is always returned if DisableGradientOpacity is On for that component.

vtkPiecewiseFunction* vtkVolumeProperty::GetGradientOpacity ( )

inline

Definition at line 264 of file vtkVolumeProperty.h.

virtual void vtkVolumeProperty::SetDisableGradientOpacity	(	int	index,
		int	value
	)

virtual

Enable/Disable the gradient opacity function for the given component.