a combination of vtkColorTransferFunction and vtkLookupTable. More...

#include <vtkDiscretizableColorTransferFunction.h>

Inheritance diagram for vtkDiscretizableColorTransferFunction:

Collaboration diagram for vtkDiscretizableColorTransferFunction:

Public Types
typedef vtkColorTransferFunction	Superclass

Public Types inherited from vtkColorTransferFunction
typedef vtkScalarsToColors	Superclass

Public Types inherited from vtkScalarsToColors
enum	VectorModes { MAGNITUDE =0, COMPONENT =1, RGBCOLORS =2 }

typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)

vtkDiscretizableColorTransferFunction *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

int	IsOpaque ()

virtual void	GetIndexedColor (vtkIdType i, double rgba[4])

virtual void	Build ()

virtual unsigned char *	MapValue (double v)

virtual void	GetColor (double v, double rgb[3])

virtual double	GetOpacity (double v)

double *	GetRGBPoints ()

virtual void	SetAlpha (double alpha)

virtual vtkIdType	GetNumberOfAvailableColors ()

virtual unsigned long	GetMTime ()


void	SetIndexedColor (unsigned int index, const double rgb[3])

void	SetIndexedColor (unsigned int index, double r, double g, double b)


void	SetNumberOfIndexedColors (unsigned int count)

unsigned int	GetNumberOfIndexedColors ()


virtual void	SetDiscretize (int)

virtual int	GetDiscretize ()

virtual void	DiscretizeOn ()

virtual void	DiscretizeOff ()


virtual void	SetUseLogScale (int useLogScale)

virtual int	GetUseLogScale ()


virtual void	SetNumberOfValues (vtkIdType)

virtual vtkIdType	GetNumberOfValues ()


virtual vtkUnsignedCharArray *	MapScalars (vtkDataArray *scalars, int colorMode, int component)

virtual vtkUnsignedCharArray *	MapScalars (vtkAbstractArray *scalars, int colorMode, int component)


virtual void	SetNanColor (double r, double g, double b)

virtual void	SetNanColor (double rgb[3])


virtual int	UsingLogScale ()


virtual void	SetScalarOpacityFunction (vtkPiecewiseFunction *function)

virtual vtkPiecewiseFunction *	GetScalarOpacityFunction () const


virtual void	SetEnableOpacityMapping (bool)

virtual bool	GetEnableOpacityMapping ()

virtual void	EnableOpacityMappingOn ()

virtual void	EnableOpacityMappingOff ()

Public Member Functions inherited from vtkColorTransferFunction
vtkColorTransferFunction *	NewInstance () const

void	DeepCopy (vtkScalarsToColors *f)

void	ShallowCopy (vtkColorTransferFunction *f)

int	GetSize ()

void	RemoveAllPoints ()

int	AdjustRange (double range[2])

void	BuildFunctionFromTable (double x1, double x2, int size, double *table)

double *	GetDataPointer ()

void	FillFromDataPointer (int n, double *ptr)

int	AddRGBPoint (double x, double r, double g, double b)

int	AddRGBPoint (double x, double r, double g, double b, double midpoint, double sharpness)

int	AddHSVPoint (double x, double h, double s, double v)

int	AddHSVPoint (double x, double h, double s, double v, double midpoint, double sharpness)

int	RemovePoint (double x)

void	AddRGBSegment (double x1, double r1, double g1, double b1, double x2, double r2, double g2, double b2)

void	AddHSVSegment (double x1, double h1, double s1, double v1, double x2, double h2, double s2, double v2)

double *	GetColor (double x)

double	GetRedValue (double x)

double	GetGreenValue (double x)

double	GetBlueValue (double x)

int	GetNodeValue (int index, double val[6])

int	SetNodeValue (int index, double val[6])

virtual double *	GetRange ()

virtual void	GetRange (double &, double &)

virtual void	GetRange (double[2])

void	GetTable (double x1, double x2, int n, double *table)

void	GetTable (double x1, double x2, int n, float *table)

const unsigned char *	GetTable (double x1, double x2, int n)

virtual void	SetClamping (int)

virtual int	GetClamping ()

virtual void	ClampingOn ()

virtual void	ClampingOff ()

virtual void	SetColorSpace (int)

void	SetColorSpaceToRGB ()

void	SetColorSpaceToHSV ()

void	SetColorSpaceToLab ()

void	SetColorSpaceToDiverging ()

virtual int	GetColorSpace ()

virtual void	SetHSVWrap (int)

virtual int	GetHSVWrap ()

virtual void	HSVWrapOn ()

virtual void	HSVWrapOff ()

virtual void	SetScale (int)

void	SetScaleToLinear ()

void	SetScaleToLog10 ()

virtual int	GetScale ()

virtual double *	GetNanColor ()

virtual void	GetNanColor (double &, double &, double &)

virtual void	GetNanColor (double[3])

virtual void	SetBelowRangeColor (double, double, double)

virtual void	SetBelowRangeColor (double[3])

virtual double *	GetBelowRangeColor ()

virtual void	GetBelowRangeColor (double &, double &, double &)

virtual void	GetBelowRangeColor (double[3])

virtual void	SetUseBelowRangeColor (int)

virtual int	GetUseBelowRangeColor ()

virtual void	UseBelowRangeColorOn ()

virtual void	UseBelowRangeColorOff ()

virtual void	SetAboveRangeColor (double, double, double)

virtual void	SetAboveRangeColor (double[3])

virtual double *	GetAboveRangeColor ()

virtual void	GetAboveRangeColor (double &, double &, double &)

virtual void	GetAboveRangeColor (double[3])

virtual void	SetUseAboveRangeColor (int)

virtual int	GetUseAboveRangeColor ()

virtual void	UseAboveRangeColorOn ()

virtual void	UseAboveRangeColorOff ()

virtual void	MapScalarsThroughTable2 (void input, unsigned char output, int inputDataType, int numberOfValues, int inputIncrement, int outputIncrement)

virtual void	SetAllowDuplicateScalars (int)

virtual int	GetAllowDuplicateScalars ()

virtual void	AllowDuplicateScalarsOn ()

virtual void	AllowDuplicateScalarsOff ()

Public Member Functions inherited from vtkScalarsToColors
vtkScalarsToColors *	NewInstance () const

virtual vtkIdType	SetAnnotation (vtkVariant value, vtkStdString annotation)

virtual vtkIdType	SetAnnotation (vtkStdString value, vtkStdString annotation)

vtkIdType	GetNumberOfAnnotatedValues ()

vtkVariant	GetAnnotatedValue (vtkIdType idx)

vtkStdString	GetAnnotation (vtkIdType idx)

virtual void	GetAnnotationColor (const vtkVariant &val, double rgba[4])

vtkIdType	GetAnnotatedValueIndex (vtkVariant val)

vtkIdType	GetAnnotatedValueIndexInternal (vtkVariant &val)

virtual bool	RemoveAnnotation (vtkVariant value)

virtual void	ResetAnnotations ()

void	SetRange (double rng[2])

double *	GetColor (double v)

double	GetLuminance (double x)

virtual double	GetAlpha ()

virtual void	SetVectorMode (int)

virtual int	GetVectorMode ()

void	SetVectorModeToMagnitude ()

void	SetVectorModeToComponent ()

void	SetVectorModeToRGBColors ()

virtual void	SetVectorComponent (int)

virtual int	GetVectorComponent ()

virtual void	SetVectorSize (int)

virtual int	GetVectorSize ()

void	MapVectorsThroughTable (void input, unsigned char output, int inputDataType, int numberOfValues, int inputIncrement, int outputFormat, int vectorComponent, int vectorSize)

void	MapVectorsThroughTable (void input, unsigned char output, int inputDataType, int numberOfValues, int inputIncrement, int outputFormat)

void	MapScalarsThroughTable (vtkDataArray scalars, unsigned char output, int outputFormat)

void	MapScalarsThroughTable (vtkDataArray scalars, unsigned char output)

void	MapScalarsThroughTable (void input, unsigned char output, int inputDataType, int numberOfValues, int inputIncrement, int outputFormat)

virtual void	SetAnnotations (vtkAbstractArray values, vtkStringArray annotations)

virtual vtkAbstractArray *	GetAnnotatedValues ()

virtual vtkStringArray *	GetAnnotations ()

virtual void	SetIndexedLookup (int)

virtual int	GetIndexedLookup ()

virtual void	IndexedLookupOn ()

virtual void	IndexedLookupOff ()

template<>
unsigned char	ColorToUChar (double t)

template<>
unsigned char	ColorToUChar (float t)

Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

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 vtkDiscretizableColorTransferFunction *	New ()

static int	IsTypeOf (const char *type)

static vtkDiscretizableColorTransferFunction *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkColorTransferFunction
static vtkColorTransferFunction *	New ()

static int	IsTypeOf (const char *type)

static vtkColorTransferFunction *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkScalarsToColors
static int	IsTypeOf (const char *type)

static vtkScalarsToColors *	SafeDownCast (vtkObjectBase *o)

static vtkScalarsToColors *	New ()

template<typename T >
static unsigned char	ColorToUChar (T t)

template<typename T >
static void	ColorToUChar (T t, unsigned char *dest)

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

	vtkDiscretizableColorTransferFunction ()

	~vtkDiscretizableColorTransferFunction ()

void	MapDataArrayToOpacity (vtkDataArray scalars, int component, vtkUnsignedCharArray colors)

Protected Member Functions inherited from vtkColorTransferFunction
	vtkColorTransferFunction ()

	~vtkColorTransferFunction ()

void	SortAndUpdateRange ()

bool	UpdateRange ()

void	MovePoint (double oldX, double newX)

virtual void	SetRange (double, double)

void	SetRange (double rng[2])

Protected Member Functions inherited from vtkScalarsToColors
	vtkScalarsToColors ()

	~vtkScalarsToColors ()

virtual vtkIdType	CheckForAnnotatedValue (vtkVariant value)

virtual void	UpdateAnnotatedValueMap ()

void	MapColorsToColors (void input, unsigned char output, int inputDataType, int numberOfValues, int numberOfComponents, int vectorSize, int outputFormat)

vtkUnsignedCharArray *	ConvertToRGBA (vtkDataArray *colors, int numComp, int numTuples)

void	MapVectorsToMagnitude (void input, double output, int inputDataType, int numberOfValues, int numberOfComponents, int vectorSize)

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 &)

Protected Attributes
int	Discretize

int	UseLogScale

vtkIdType	NumberOfValues

vtkLookupTable *	LookupTable

vtkTimeStamp	BuildTime

bool	EnableOpacityMapping

vtkSmartPointer< vtkPiecewiseFunction >	ScalarOpacityFunction

Protected Attributes inherited from vtkColorTransferFunction
vtkColorTransferFunctionInternals *	Internal

int	Clamping

int	ColorSpace

int	HSVWrap

int	Scale

double	NanColor [3]

double	BelowRangeColor [3]

int	UseBelowRangeColor

double	AboveRangeColor [3]

int	UseAboveRangeColor

double *	Function

double	Range [2]

unsigned char	UnsignedCharRGBAValue [4]

int	AllowDuplicateScalars

vtkTimeStamp	BuildTime

unsigned char *	Table

int	TableSize

Protected Attributes inherited from vtkScalarsToColors
vtkAbstractArray *	AnnotatedValues

vtkStringArray *	Annotations

vtkInternalAnnotatedValueMap *	AnnotatedValueMap

int	IndexedLookup

double	Alpha

int	VectorMode

int	VectorComponent

int	VectorSize

int	UseMagnitude

unsigned char	RGBABytes [4]

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

a combination of vtkColorTransferFunction and vtkLookupTable.

This is a cross between a vtkColorTransferFunction and a vtkLookupTable selectively combining the functionality of both. This class is a vtkColorTransferFunction allowing users to specify the RGB control points that control the color transfer function. At the same time, by setting Discretize to 1 (true), one can force the transfer function to only have NumberOfValues discrete colors.

When IndexedLookup is true, this class behaves differently. The annotated values are considered to the be only valid values for which entries in the color table should be returned. The colors for annotated values are those specified using AddIndexedColors. Typically, there must be at least as many indexed colors specified as the annotations. For backwards compatibility, if no indexed-colors are specified, the colors in the lookup Table are assigned to annotated values by taking the modulus of their index in the list of annotations. If a scalar value is not present in AnnotatedValues, then NanColor will be used.

NOTE: One must call Build() after making any changes to the points in the ColorTransferFunction to ensure that the discrete and non-discrete versions match up.

Tests:: vtkDiscretizableColorTransferFunction (Tests)

Definition at line 55 of file vtkDiscretizableColorTransferFunction.h.

Member Typedef Documentation

typedef vtkColorTransferFunction vtkDiscretizableColorTransferFunction::Superclass

Definition at line 59 of file vtkDiscretizableColorTransferFunction.h.

Constructor & Destructor Documentation

vtkDiscretizableColorTransferFunction::vtkDiscretizableColorTransferFunction ( )

protected

vtkDiscretizableColorTransferFunction::~vtkDiscretizableColorTransferFunction ( )

protected

Member Function Documentation

static vtkDiscretizableColorTransferFunction* vtkDiscretizableColorTransferFunction::New ( )

static

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

static

virtual int vtkDiscretizableColorTransferFunction::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 vtkColorTransferFunction.

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

static

virtual vtkObjectBase* vtkDiscretizableColorTransferFunction::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkColorTransferFunction.

vtkDiscretizableColorTransferFunction* vtkDiscretizableColorTransferFunction::NewInstance ( ) const

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

virtual

Print method for vtkColorTransferFunction

Reimplemented from vtkColorTransferFunction.

int vtkDiscretizableColorTransferFunction::IsOpaque ( )

virtual

Returns the negation of EnableOpacityMapping.

Reimplemented from vtkScalarsToColors.

void vtkDiscretizableColorTransferFunction::SetIndexedColor	(	unsigned int	index,
		const double	rgb[3]
	)

inline

Add colors to use when IndexedLookup is true. SetIndexedColor() will automatically call SetNumberOfIndexedColors(index+1) if the current number of indexed colors is not sufficient for the specified index and all will be initialized to the RGB values passed to this call.

Definition at line 71 of file vtkDiscretizableColorTransferFunction.h.

void vtkDiscretizableColorTransferFunction::SetIndexedColor	(	unsigned int	index,
		double	r,
		double	g,
		double	b
	)

Add colors to use when IndexedLookup is true. SetIndexedColor() will automatically call SetNumberOfIndexedColors(index+1) if the current number of indexed colors is not sufficient for the specified index and all will be initialized to the RGB values passed to this call.

virtual void vtkDiscretizableColorTransferFunction::GetIndexedColor	(	vtkIdType	i,
		double	rgba[4]
	)

virtual

Get the "indexed color" assigned to an index. The index is used in IndexedLookup mode to assign colors to annotations (in the order the annotations were set). Subclasses must implement this and interpret how to treat the index. vtkLookupTable simply returns GetTableValue(index % this->GetNumberOfTableValues()). vtkColorTransferFunction returns the color assocated with node index % this->GetSize(). Note that implementations must set the opacity (alpha) component of the color, even if they do not provide opacity values in their colormaps. In that case, alpha = 1 should be used.

Reimplemented from vtkColorTransferFunction.

void vtkDiscretizableColorTransferFunction::SetNumberOfIndexedColors ( unsigned int count )

Set the number of indexed colors. These are used when IndexedLookup is true. If no indexed colors are specified, for backwards compatibility, this class reverts to using the RGBPoints for colors.

unsigned int vtkDiscretizableColorTransferFunction::GetNumberOfIndexedColors ( )

Set the number of indexed colors. These are used when IndexedLookup is true. If no indexed colors are specified, for backwards compatibility, this class reverts to using the RGBPoints for colors.

virtual void vtkDiscretizableColorTransferFunction::Build ( )

virtual

Generate discretized lookup table, if applicable. This method must be called after changes to the ColorTransferFunction otherwise the discretized version will be inconsistent with the non-discretized one.

Reimplemented from vtkScalarsToColors.

virtual void vtkDiscretizableColorTransferFunction::SetDiscretize ( int )

virtual

Set if the values are to be mapped after discretization. The number of discrete values is set by using SetNumberOfValues(). Not set by default, i.e. color value is determined by interpolating at the scalar value.

virtual int vtkDiscretizableColorTransferFunction::GetDiscretize ( )

virtual

Set if the values are to be mapped after discretization. The number of discrete values is set by using SetNumberOfValues(). Not set by default, i.e. color value is determined by interpolating at the scalar value.

virtual void vtkDiscretizableColorTransferFunction::DiscretizeOn ( )

virtual

Set if the values are to be mapped after discretization. The number of discrete values is set by using SetNumberOfValues(). Not set by default, i.e. color value is determined by interpolating at the scalar value.

virtual void vtkDiscretizableColorTransferFunction::DiscretizeOff ( )

virtual

Set if the values are to be mapped after discretization. The number of discrete values is set by using SetNumberOfValues(). Not set by default, i.e. color value is determined by interpolating at the scalar value.

virtual void vtkDiscretizableColorTransferFunction::SetUseLogScale ( int useLogScale )

virtual

Get/Set if log scale must be used while mapping scalars to colors. The default is 0.

virtual int vtkDiscretizableColorTransferFunction::GetUseLogScale ( )

virtual

Get/Set if log scale must be used while mapping scalars to colors. The default is 0.

virtual void vtkDiscretizableColorTransferFunction::SetNumberOfValues ( vtkIdType )

virtual

Set the number of values i.e. colors to be generated in the discrete lookup table. This has no effect if Discretize is off. The default is

virtual vtkIdType vtkDiscretizableColorTransferFunction::GetNumberOfValues ( )

virtual

Set the number of values i.e. colors to be generated in the discrete lookup table. This has no effect if Discretize is off. The default is

virtual unsigned char* vtkDiscretizableColorTransferFunction::MapValue ( double v )

virtual

Map one value through the lookup table and return a color defined as a RGBA unsigned char tuple (4 bytes).

Reimplemented from vtkColorTransferFunction.

virtual void vtkDiscretizableColorTransferFunction::GetColor	(	double	v,
		double	rgb[3]
	)

virtual

Map one value through the lookup table and return the color as an RGB array of doubles between 0 and 1.

Reimplemented from vtkColorTransferFunction.

virtual double vtkDiscretizableColorTransferFunction::GetOpacity ( double v )

virtual

Return the opacity of a given scalar.

Reimplemented from vtkScalarsToColors.

virtual vtkUnsignedCharArray* vtkDiscretizableColorTransferFunction::MapScalars	(	vtkDataArray *	scalars,
		int	colorMode,
		int	component
	)

virtual

Internal methods that map a data array into a 4-component, unsigned char RGBA array. The color mode determines the behavior of mapping. If VTK_COLOR_MODE_DEFAULT is set, then unsigned char data arrays are treated as colors (and converted to RGBA if necessary); otherwise, the data is mapped through this instance of ScalarsToColors. The offset is used for data arrays with more than one component; it indicates which component to use to do the blending. When the component argument is -1, then the this object uses its own selected technique to change a vector into a scalar to map. When IndexedLookup (inherited from vtkScalarsToColors) is true, the scalar opacity function is not used regardless of EnableOpacityMapping.

Reimplemented from vtkScalarsToColors.

virtual vtkUnsignedCharArray* vtkDiscretizableColorTransferFunction::MapScalars	(	vtkAbstractArray *	scalars,
		int	colorMode,
		int	component
	)

virtual

Internal methods that map a data array into a 4-component, unsigned char RGBA array. The color mode determines the behavior of mapping. If VTK_COLOR_MODE_DEFAULT is set, then unsigned char data arrays are treated as colors (and converted to RGBA if necessary); otherwise, the data is mapped through this instance of ScalarsToColors. The offset is used for data arrays with more than one component; it indicates which component to use to do the blending. When the component argument is -1, then the this object uses its own selected technique to change a vector into a scalar to map. When IndexedLookup (inherited from vtkScalarsToColors) is true, the scalar opacity function is not used regardless of EnableOpacityMapping.

Reimplemented from vtkScalarsToColors.

double* vtkDiscretizableColorTransferFunction::GetRGBPoints ( )

Returns the (x, r, g, b) values as an array. vtkColorTransferFunction::GetDataPointer(). Retained for backwards compatibility.

Deprecated:: Use GetDataPointer() instead.

virtual void vtkDiscretizableColorTransferFunction::SetAlpha ( double alpha )

virtual

Specify an additional opacity (alpha) value to blend with. Values != 1 modify the resulting color consistent with the requested form of the output. This is typically used by an actor in order to blend its opacity. Overridden to pass the alpha to the internal vtkLookupTable.

Reimplemented from vtkScalarsToColors.

virtual void vtkDiscretizableColorTransferFunction::SetNanColor	(	double	r,
		double	g,
		double	b
	)

virtual

Set the color to use when a NaN (not a number) is encountered. This is an RGB 3-tuple color of doubles in the range [0, 1]. Overridden to pass the NanColor to the internal vtkLookupTable.

Reimplemented from vtkColorTransferFunction.

virtual void vtkDiscretizableColorTransferFunction::SetNanColor ( double rgb[3] )

inlinevirtual

Set the color to use when a NaN (not a number) is encountered. This is an RGB 3-tuple color of doubles in the range [0, 1]. Overridden to pass the NanColor to the internal vtkLookupTable.

Reimplemented from vtkColorTransferFunction.

Definition at line 172 of file vtkDiscretizableColorTransferFunction.h.

virtual int vtkDiscretizableColorTransferFunction::UsingLogScale ( )

inlinevirtual

This should return 1 if the subclass is using log scale for mapping scalars to colors.

Reimplemented from vtkScalarsToColors.

Definition at line 180 of file vtkDiscretizableColorTransferFunction.h.

virtual vtkIdType vtkDiscretizableColorTransferFunction::GetNumberOfAvailableColors ( )

virtual

Get the number of available colors for mapping to.

Reimplemented from vtkColorTransferFunction.

virtual void vtkDiscretizableColorTransferFunction::SetScalarOpacityFunction ( vtkPiecewiseFunction * function )