2D Transfer function container. More...

#include <vtkOpenGLVolumeTransferFunction2D.h>

Inheritance diagram for vtkOpenGLVolumeTransferFunction2D:

Collaboration diagram for vtkOpenGLVolumeTransferFunction2D:

Public Types
typedef vtkOpenGLVolumeLookupTable	Superclass

Public Types inherited from vtkOpenGLVolumeLookupTable
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...

vtkOpenGLVolumeTransferFunction2D *	NewInstance () const

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

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

vtkOpenGLVolumeLookupTable *	NewInstance () const

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

int	GetTextureUnit ()
	Get the texture unit associated with the managed texture object. More...

int	GetMaximumSupportedTextureWidth (vtkOpenGLRenderWindow *renWin, int idealWidth)
	Get the maximum supported texture width for the target OpenGL environment. More...

void	ReleaseGraphicsResources (vtkWindow *window)
	Release graphics resources. More...

virtual void	Update (vtkObject func, double scalarRange[2], int blendMode, double sampleDistance, double unitDistance, int filterValue, vtkOpenGLRenderWindow renWin)
	Update the internal texture object using the transfer function provided. More...

virtual int	GetTextureHeight ()
	Get access to the texture height used by this object. More...

virtual int	GetTextureWidth ()
	Get access to the texture width used by this object. More...

void	Activate ()
	Activate / deactivate the internal texture object. More...

void	Deactivate ()
	Activate / deactivate the internal texture object. 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...

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. 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 vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). 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...

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space. 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 vtkTypeBool	IsTypeOf (const char *type)

static vtkOpenGLVolumeTransferFunction2D *	SafeDownCast (vtkObjectBase *o)

static vtkOpenGLVolumeTransferFunction2D *	New ()

Static Public Member Functions inherited from vtkOpenGLVolumeLookupTable
static vtkTypeBool	IsTypeOf (const char *type)

static vtkOpenGLVolumeLookupTable *	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 vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). More...

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

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. More...

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkOpenGLVolumeTransferFunction2D ()

void	InternalUpdate (vtkObject *func, int blendMode, double sampleDistance, double unitDistance, int filterValue) override
	Update the internal texture object using the 2D image data. More...

bool	NeedsUpdate (vtkObject *func, double scalarRange[2], int blendMode, double sampleDistance) override
	Override needs update to not test for scalar range changes since the range is encoded in the vtkImageData. More...

void	AllocateTable () override
	Override allocate table to do nothing as no internal table management is needed. More...

Protected Member Functions inherited from vtkOpenGLVolumeLookupTable
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkOpenGLVolumeLookupTable ()=default

	~vtkOpenGLVolumeLookupTable () override

virtual bool	NeedsUpdate (vtkObject *func, double scalarRange[2], int blendMode, double sampleDistance)
	Test whether the internal function needs to be updated. More...

virtual void	InternalUpdate (vtkObject *func, int blendMode, double sampleDistance, double unitDistance, int filterValue)
	Internal method to actually update the texture object. More...

virtual void	ComputeIdealTextureSize (vtkObject func, int &width, int &height, vtkOpenGLRenderWindow renWin)
	Compute ideal width and height for the texture based on function provided. More...

virtual void	AllocateTable ()
	Allocate internal data table. More...

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	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkNew< vtkImageResize >	ResizeFilter

Protected Attributes inherited from vtkOpenGLVolumeLookupTable
double	LastRange [2] = { 0.0, 0.0 }

float *	Table = nullptr

int	LastInterpolation = -1

int	NumberOfColorComponents = 1

int	TextureWidth = 1024

int	TextureHeight = 1

vtkTextureObject *	TextureObject = nullptr

vtkTimeStamp	BuildTime

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

2D Transfer function container.

Manages the texture fetched by the fragment shader when TransferFunction2D mode is active. Update() assumes the vtkImageData instance used as source is of type VTK_FLOAT and has 4 components (vtkVolumeProperty ensures this is the case when the function is set).

See also: vtkVolumeProperty::SetTransferFunction2D

Definition at line 39 of file vtkOpenGLVolumeTransferFunction2D.h.

Member Typedef Documentation

◆ Superclass

typedef vtkOpenGLVolumeLookupTable vtkOpenGLVolumeTransferFunction2D::Superclass

Definition at line 43 of file vtkOpenGLVolumeTransferFunction2D.h.

Constructor & Destructor Documentation

◆ vtkOpenGLVolumeTransferFunction2D()

vtkOpenGLVolumeTransferFunction2D::vtkOpenGLVolumeTransferFunction2D ( )

protected

Member Function Documentation

◆ IsTypeOf()

static vtkTypeBool vtkOpenGLVolumeTransferFunction2D::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkOpenGLVolumeTransferFunction2D::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 vtkOpenGLVolumeLookupTable.

◆ SafeDownCast()

static vtkOpenGLVolumeTransferFunction2D * vtkOpenGLVolumeTransferFunction2D::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkOpenGLVolumeTransferFunction2D::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkOpenGLVolumeLookupTable.

◆ NewInstance()

vtkOpenGLVolumeTransferFunction2D * vtkOpenGLVolumeTransferFunction2D::NewInstance ( ) const

◆ PrintSelf()

void vtkOpenGLVolumeTransferFunction2D::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 vtkOpenGLVolumeLookupTable.

◆ New()

static vtkOpenGLVolumeTransferFunction2D * vtkOpenGLVolumeTransferFunction2D::New ( )

static

◆ InternalUpdate()

void vtkOpenGLVolumeTransferFunction2D::InternalUpdate	(	vtkObject *	func,
		int	blendMode,
		double	sampleDistance,
		double	unitDistance,
		int	filterValue
	)

overrideprotectedvirtual

Update the internal texture object using the 2D image data.

Reimplemented from vtkOpenGLVolumeLookupTable.

◆ NeedsUpdate()

bool vtkOpenGLVolumeTransferFunction2D::NeedsUpdate	(	vtkObject *	func,
		double	scalarRange[2],
		int	blendMode,
		double	sampleDistance
	)

overrideprotectedvirtual

Override needs update to not test for scalar range changes since the range is encoded in the vtkImageData.

Reimplemented from vtkOpenGLVolumeLookupTable.

◆ AllocateTable()

void vtkOpenGLVolumeTransferFunction2D::AllocateTable ( )

overrideprotectedvirtual

Override allocate table to do nothing as no internal table management is needed.

Reimplemented from vtkOpenGLVolumeLookupTable.

Member Data Documentation

◆ ResizeFilter

vtkNew<vtkImageResize> vtkOpenGLVolumeTransferFunction2D::ResizeFilter

protected

Definition at line 70 of file vtkOpenGLVolumeTransferFunction2D.h.

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

Rendering/VolumeOpenGL2/vtkOpenGLVolumeTransferFunction2D.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkOpenGLVolumeTransferFunction2D()

Member Function Documentation

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ New()

◆ InternalUpdate()

◆ NeedsUpdate()

◆ AllocateTable()

Member Data Documentation

◆ ResizeFilter