data structure for holding 1D transfer function data More...

#include <transferfunction.h>

Inheritance diagram for inviwo::TransferFunction:

Public Member Functions
	TransferFunction (const std::vector< TFPrimitiveData > &values)

	TransferFunction (const std::vector< TFPrimitiveData > &values, TFPrimitiveSetType type)

	TransferFunction (const TransferFunction &rhs)=default

	TransferFunction (TransferFunction &&rhs) noexcept=default

TransferFunction &	operator= (const TransferFunction &rhs)=default

TransferFunction &	operator= (TransferFunction &&rhs) noexcept=default

void	setMask (dvec2 mask)

dvec2	getMask () const

void	setMaskMin (double maskMin)

double	getMaskMin () const

void	setMaskMax (double maskMax)

double	getMaskMax () const

void	clearMask ()

virtual void	serialize (Serializer &s) const override

virtual void	deserialize (Deserializer &d) override

vec4	sample (double v) const

vec4	sample (float v) const

virtual void	interpolateAndStoreColors (std::span< vec4 > data) const override

Public Member Functions inherited from inviwo::TFPrimitiveSet
	TFPrimitiveSet (const std::vector< TFPrimitiveData > &values={}, TFPrimitiveSetType type=TFPrimitiveSetType::Relative)

	TFPrimitiveSet (const TFPrimitiveSet &rhs)

	TFPrimitiveSet (TFPrimitiveSet &&rhs) noexcept=default

TFPrimitiveSet &	operator= (const TFPrimitiveSet &rhs)

TFPrimitiveSet &	operator= (TFPrimitiveSet &&rhs) noexcept

void	setType (TFPrimitiveSetType type)

TFPrimitiveSetType	getType () const

dvec2	getRange () const

size_t	size () const

bool	empty () const

TFPrimitive &	operator[] (size_t i)

const TFPrimitive &	operator[] (size_t i) const

TFPrimitive &	get (size_t i)

const TFPrimitive &	get (size_t i) const

TFPrimitive &	front ()

const TFPrimitive &	front () const

TFPrimitive &	back ()

const TFPrimitive &	back () const

iterator	begin ()

iterator	end ()

const_iterator	begin () const

const_iterator	end () const

const_iterator	cbegin () const

const_iterator	cend () const

std::vector< TFPrimitiveData >	get () const

std::vector< TFPrimitiveData >	getUnsorted () const

void	set (std::span< const TFPrimitiveData >)

void	set (const_iterator begin, const_iterator end)

std::pair< std::vector< double >, std::vector< vec4 > >	getVectors () const

std::pair< std::vector< float >, std::vector< vec4 > >	getVectorsf () const

std::vector< double >	getPositions () const

std::vector< float >	getPositionsf () const

std::vector< vec4 >	getColors () const

TFPrimitive &	add (const TFPrimitive &primitive)

TFPrimitive &	add (double pos, const vec4 &color)

TFPrimitive &	add (double pos, double alpha)

TFPrimitive &	add (const dvec2 &pos)

TFPrimitive &	add (const TFPrimitiveData &data)

void	add (const std::vector< TFPrimitiveData > &primitives)

bool	remove (const TFPrimitive &primitive)

void	clear ()

void	setPosition (std::span< TFPrimitive * > primitives, double pos)

virtual void	onTFPrimitiveChange (const TFPrimitive &p) override

bool	operator== (const std::vector< TFPrimitiveData > &rhs) const

bool	contains (const TFPrimitive *primitive) const

Public Member Functions inherited from inviwo::Observable< TFPrimitiveSetObserver >
	Observable (const Observable< TFPrimitiveSetObserver > &other)

	Observable (Observable< TFPrimitiveSetObserver > &&other) noexcept

Observable< TFPrimitiveSetObserver > &	operator= (const Observable< TFPrimitiveSetObserver > &other)

Observable< TFPrimitiveSetObserver > &	operator= (Observable< TFPrimitiveSetObserver > &&other) noexcept

void	addObserver (TFPrimitiveSetObserver *observer)

void	removeObserver (TFPrimitiveSetObserver *observer)

virtual void	startBlockingNotifications () override final

virtual void	stopBlockingNotifications () override final

Public Member Functions inherited from inviwo::Observer
	Observer (const Observer &other)

	Observer (Observer &&other)

Observer &	operator= (Observer &&other)

Observer &	operator= (const Observer &other)

virtual	~Observer ()

void	removeObservation (ObservableInterface *observable)

void	removeObservations ()

Static Public Member Functions
static std::vector< TFPrimitiveData >	simplify (const std::vector< TFPrimitiveData > &points, double delta=0.01)

static TransferFunction	load (const std::filesystem::path &path)

static void	save (const TransferFunction &tf, const std::filesystem::path &path)

Protected Member Functions
virtual std::string_view	serializationKey () const override

virtual std::string_view	serializationItemKey () const override

Protected Member Functions inherited from inviwo::TFPrimitiveSet
TFPrimitive &	add (std::unique_ptr< TFPrimitive > primitive)

bool	remove (std::vector< std::unique_ptr< TFPrimitive > >::iterator it)

void	sort ()

vec4	interpolateColor (double t) const

Protected Member Functions inherited from inviwo::TFPrimitiveSetObservable
void	notifyTFPrimitiveAdded (const TFPrimitiveSet &set, TFPrimitive &p)

void	notifyTFPrimitiveRemoved (const TFPrimitiveSet &set, TFPrimitive &p)

void	notifyTFPrimitiveChanged (const TFPrimitiveSet &set, const TFPrimitive &p)

void	notifyTFTypeChanged (const TFPrimitiveSet &set, TFPrimitiveSetType type)

void	notifyTFMaskChanged (const TFPrimitiveSet &set, dvec2 mask)

Protected Member Functions inherited from inviwo::Observable< TFPrimitiveSetObserver >
void	forEachObserver (C callback)

Protected Member Functions inherited from inviwo::ObservableInterface
void	addObservationHelper (Observer *observer)

void	removeObservationHelper (Observer *observer)

Protected Member Functions inherited from inviwo::Observer
void	addObservation (ObservableInterface *observable)

Friends
IVW_CORE_API bool	operator== (const TransferFunction &lhs, const TransferFunction &rhs)

IVW_CORE_API bool	operator!= (const TransferFunction &lhs, const TransferFunction &rhs)

Additional Inherited Members
Public Types inherited from inviwo::TFPrimitiveSet
using	transform_t = TFPrimitive& ()(TFPrimitive)

using	const_transform_t = const TFPrimitive& ()(const TFPrimitive)

using	iterator

using	const_iterator

Protected Attributes inherited from inviwo::TFPrimitiveSet
std::vector< std::unique_ptr< TFPrimitive > >	values_

std::vector< TFPrimitive * >	sorted_

Protected Attributes inherited from inviwo::Observer
std::unordered_set< ObservableInterface * >	observables_

Detailed Description

data structure for holding 1D transfer function data

Member Function Documentation

◆ deserialize()

virtual void inviwo::TransferFunction::deserialize ( Deserializer & d )

overridevirtual

Reimplemented from inviwo::TFPrimitiveSet.

◆ interpolateAndStoreColors()

virtual void inviwo::TransferFunction::interpolateAndStoreColors ( std::span< vec4 > data ) const

overridevirtual

Interpolate the color between all neighboring pairs of TFPrimitives and write the result to dataArray. The range of all TFPrimitives is [0,1] when TF type is relative

Parameters

data	write interpolated colors into data

Reimplemented from inviwo::TFPrimitiveSet.

◆ sample() [1/2]

vec4 inviwo::TransferFunction::sample ( double v ) const

Sample the transfer function at position v and return the respective color and opacity (rgba). The range of the transfer function is [0,1].

Parameters

v	sampling position, if v is outside the range [0,1] it is clamped to [0,1]

Returns: color and opacity at position v

◆ sample() [2/2]

vec4 inviwo::TransferFunction::sample ( float v ) const

Sample the transfer function at position v and return the respective color and opacity (rgba). The range of the transfer function is [0,1].

Parameters

v	sampling position, if v is outside the range [0,1] it is clamped to [0,1]

Returns: color and opacity at position v

◆ serializationItemKey()

virtual std::string_view inviwo::TransferFunction::serializationItemKey ( ) const

overrideprotectedvirtual

Reimplemented from inviwo::TFPrimitiveSet.

◆ serializationKey()

virtual std::string_view inviwo::TransferFunction::serializationKey ( ) const

overrideprotectedvirtual

Reimplemented from inviwo::TFPrimitiveSet.

◆ serialize()

virtual void inviwo::TransferFunction::serialize ( Serializer & s ) const

overridevirtual

Reimplemented from inviwo::TFPrimitiveSet.

◆ simplify()

static std::vector< TFPrimitiveData > inviwo::TransferFunction::simplify	(	const std::vector< TFPrimitiveData > &	points,
		double	delta = 0.01 )

static

Simplify a vector of TF points by removing points that can be replaced by interpolating between the previous and the next point, as long as the resulting error is less then delta. the error is the absolute maximal component wise error at the point to be removed.

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

transferfunction.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ deserialize()

◆ interpolateAndStoreColors()

◆ sample() [1/2]

◆ sample() [2/2]

◆ serializationItemKey()

◆ serializationKey()

◆ serialize()

◆ simplify()