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

#include <transferfunction.h>

Inheritance diagram for inviwo::TransferFunction:

Public Member Functions
	TransferFunction (size_t textureSize=1024)

	TransferFunction (const std::vector< TFPrimitiveData > &values, size_t textureSize=1024)

	TransferFunction (const std::vector< TFPrimitiveData > &values, TFPrimitiveSetType type, size_t textureSize=1024)

	TransferFunction (const TransferFunction &rhs)

TransferFunction &	operator= (const TransferFunction &rhs)

const Layer *	getData () const

size_t	getTextureSize () const

size_t	getNumPoints () const

TFPrimitive *	getPoint (size_t i)

const TFPrimitive *	getPoint (size_t i) const

void	addPoint (const float &pos, const vec4 &color)

void	addPoint (const TFPrimitiveData &point)

void	addPoint (const vec2 &pos)

void	addPoints (const std::vector< TFPrimitiveData > &points)

void	addPoint (const vec2 &pos, const vec4 &color)

void	removePoint (TFPrimitive *dataPoint)

void	clearPoints ()

void	setMaskMin (double maskMin)

double	getMaskMin () const

void	setMaskMax (double maskMax)

double	getMaskMax () const

void	clearMask ()

virtual void	invalidate () override

virtual void	serialize (Serializer &s) const override

virtual void	deserialize (Deserializer &d) override

vec4	sample (double v) const

vec4	sample (float v) const

virtual std::vector< FileExtension >	getSupportedExtensions () const override

virtual void	save (const std::string &filename, const FileExtension &ext=FileExtension()) const override

virtual void	load (const std::string &filename, const FileExtension &ext=FileExtension()) override

virtual std::string	getTitle () 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)=default

TFPrimitiveSet &	operator= (const TFPrimitiveSet &rhs)

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 (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

void	add (const TFPrimitive &primitive)

void	add (double pos, const vec4 &color)

void	add (const dvec2 &pos)

void	add (const TFPrimitiveData &data)

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

bool	remove (const TFPrimitive &primitive)

void	clear ()

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

void	setAlpha (const std::vector< TFPrimitive * > primitives, double alpha)

void	setColor (const std::vector< TFPrimitive * > primitives, const vec3 &color)

virtual void	onTFPrimitiveChange (const TFPrimitive &p) override

void	interpolateAndStoreColors (vec4 *dataArray, const size_t size) const

void	flipPositions (const std::vector< TFPrimitive * > &primitives={})

void	interpolateAlpha (const std::vector< TFPrimitive * > &primitives={})

void	equalizeAlpha (const std::vector< TFPrimitive * > &primitives={})

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

	Observable (Observable< TFPrimitiveSetObserver > &&other)

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

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

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)

Protected Member Functions
void	calcTransferValues () const

virtual std::string	serializationKey () const override

virtual std::string	serializationItemKey () const override

Protected Member Functions inherited from inviwo::TFPrimitiveSet
void	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 (TFPrimitive &p)

void	notifyTFPrimitiveRemoved (TFPrimitive &p)

void	notifyTFPrimitiveChanged (const TFPrimitive &p)

void	notifyTFTypeChanged (const TFPrimitiveSet &primitiveSet)

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
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 = util::TransformIterator< transform_t, typename std::vector< TFPrimitive * >::iterator >

using	const_iterator = util::TransformIterator< const_transform_t, typename std::vector< TFPrimitive * >::const_iterator >

Protected Types inherited from inviwo::Observer
using	ObservableSet = std::unordered_set< ObservableInterface * >

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

std::vector< TFPrimitive * >	sorted_

Protected Attributes inherited from inviwo::Observer
ObservableSet	observables_

Detailed Description

data structure for holding 1D transfer function data

Member Function Documentation

◆ invalidate()

void inviwo::TransferFunction::invalidate ( )

overridevirtual

Notify that the layer data (texture) needs to be updated next time it is requested.

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

◆ simplify()

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 files:

transferfunction.h
transferfunction.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions