performs piecewise linear ray integration. More...

#include <vtkUnstructuredGridPartialPreIntegration.h>

Inheritance diagram for vtkUnstructuredGridPartialPreIntegration:

Collaboration diagram for vtkUnstructuredGridPartialPreIntegration:

Public Types
typedef vtkUnstructuredGridVolumeRayIntegrator	Superclass

Public Types inherited from vtkUnstructuredGridVolumeRayIntegrator
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...

vtkUnstructuredGridPartialPreIntegration *	NewInstance () const

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

void	Initialize (vtkVolume volume, vtkDataArray scalars) override
	Set up the integrator with the given properties and scalars. More...

void	Integrate (vtkDoubleArray intersectionLengths, vtkDataArray nearIntersections, vtkDataArray *farIntersections, float color[4]) override
	Given a set of intersections (defined by the three arrays), compute the piecewise integration of the array in front to back order. More...

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

vtkUnstructuredGridVolumeRayIntegrator *	NewInstance () const

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

virtual void	Initialize (vtkVolume volume, vtkDataArray scalars)=0
	Set up the integrator with the given properties and scalars. More...

virtual void	Integrate (vtkDoubleArray intersectionLengths, vtkDataArray nearIntersections, vtkDataArray *farIntersections, float color[4])=0
	Given a set of intersections (defined by the three arrays), compute the piecewise integration of the array in front to back order. 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 vtkUnstructuredGridPartialPreIntegration *	SafeDownCast (vtkObjectBase *o)

static vtkUnstructuredGridPartialPreIntegration *	New ()


static void	IntegrateRay (double length, double intensity_front, double attenuation_front, double intensity_back, double attenuation_back, float color[4])
	Integrates a single ray segment. More...

static void	IntegrateRay (double length, const double color_front[3], double attenuation_front, const double color_back[3], double attenuation_back, float color[4])
	Integrates a single ray segment. More...


static float	Psi (float taufD, float taubD)
	Looks up Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data") in a table. More...

static float *	GetPsiTable (int &size)
	Looks up Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data") in a table. More...

static void	BuildPsiTable ()
	Looks up Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data") in a table. More...

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

static vtkUnstructuredGridVolumeRayIntegrator *	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 Types
enum	{ PSI_TABLE_SIZE = 512 }

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkUnstructuredGridPartialPreIntegration ()

	~vtkUnstructuredGridPartialPreIntegration () override

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

	vtkUnstructuredGridVolumeRayIntegrator ()

	~vtkUnstructuredGridVolumeRayIntegrator () override

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
vtkVolumeProperty *	Property

vtkPartialPreIntegrationTransferFunction *	TransferFunctions

vtkTimeStamp	TransferFunctionsModified

int	NumIndependentComponents

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

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

vtkWeakPointerBase **	WeakPointers

Static Protected Attributes
static float	PsiTable [PSI_TABLE_SIZE *PSI_TABLE_SIZE]

static int	PsiTableBuilt

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

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

performs piecewise linear ray integration.

vtkUnstructuredGridPartialPreIntegration performs piecewise linear ray integration. This will give the same results as vtkUnstructuredGridLinearRayIntegration (with potentially a error due to table lookup quantization), but should be notably faster. The algorithm used is given by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data."

This class is thread safe only after the first instance is created.

Definition at line 52 of file vtkUnstructuredGridPartialPreIntegration.h.

Member Typedef Documentation

◆ Superclass

typedef vtkUnstructuredGridVolumeRayIntegrator vtkUnstructuredGridPartialPreIntegration::Superclass

Definition at line 56 of file vtkUnstructuredGridPartialPreIntegration.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

protected

Enumerator
PSI_TABLE_SIZE

Definition at line 98 of file vtkUnstructuredGridPartialPreIntegration.h.

Constructor & Destructor Documentation

◆ vtkUnstructuredGridPartialPreIntegration()

vtkUnstructuredGridPartialPreIntegration::vtkUnstructuredGridPartialPreIntegration ( )

protected

◆ ~vtkUnstructuredGridPartialPreIntegration()

vtkUnstructuredGridPartialPreIntegration::~vtkUnstructuredGridPartialPreIntegration ( )

overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool vtkUnstructuredGridPartialPreIntegration::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 vtkUnstructuredGridVolumeRayIntegrator.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkUnstructuredGridPartialPreIntegration::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.

◆ NewInstance()

vtkUnstructuredGridPartialPreIntegration * vtkUnstructuredGridPartialPreIntegration::NewInstance ( ) const

◆ New()

static vtkUnstructuredGridPartialPreIntegration * vtkUnstructuredGridPartialPreIntegration::New ( )

static

◆ PrintSelf()

void vtkUnstructuredGridPartialPreIntegration::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.

◆ Initialize()

void vtkUnstructuredGridPartialPreIntegration::Initialize	(	vtkVolume *	volume,
		vtkDataArray *	scalars
	)

overridevirtual

Set up the integrator with the given properties and scalars.

Implements vtkUnstructuredGridVolumeRayIntegrator.

◆ Integrate()

void vtkUnstructuredGridPartialPreIntegration::Integrate	(	vtkDoubleArray *	intersectionLengths,
		vtkDataArray *	nearIntersections,
		vtkDataArray *	farIntersections,
		float	color[4]
	)

overridevirtual

Given a set of intersections (defined by the three arrays), compute the piecewise integration of the array in front to back order.

/c intersectionLengths holds the lengths of each piecewise segment. /c nearIntersections and /c farIntersections hold the scalar values at the front and back of each segment. /c color should contain the RGBA value of the volume in front of the segments passed in, and the result will be placed back into /c color.

Implements vtkUnstructuredGridVolumeRayIntegrator.

◆ IntegrateRay() [1/2]

void vtkUnstructuredGridPartialPreIntegration::IntegrateRay	(	double	length,
		double	intensity_front,
		double	attenuation_front,
		double	intensity_back,
		double	attenuation_back,
		float	color[4]
	)

inlinestatic

Integrates a single ray segment.

color is blended with the result (with color in front). The result is written back into color.

Definition at line 127 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ IntegrateRay() [2/2]

void vtkUnstructuredGridPartialPreIntegration::IntegrateRay	(	double	length,
		const double	color_front[3],
		double	attenuation_front,
		const double	color_back[3],
		double	attenuation_back,
		float	color[4]
	)

inlinestatic

Integrates a single ray segment.

color is blended with the result (with color in front). The result is written back into color.

Definition at line 146 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ Psi()

float vtkUnstructuredGridPartialPreIntegration::Psi	(	float	taufD,
		float	taubD
	)

inlinestatic

Looks up Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data") in a table.

The table must be created first, which happens on the first instantiation of this class or when BuildPsiTable is first called.

Definition at line 112 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ GetPsiTable()

float * vtkUnstructuredGridPartialPreIntegration::GetPsiTable ( int & size )

inlinestatic

Looks up Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data") in a table.

The table must be created first, which happens on the first instantiation of this class or when BuildPsiTable is first called.

Definition at line 121 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ BuildPsiTable()

static void vtkUnstructuredGridPartialPreIntegration::BuildPsiTable ( )

static

Looks up Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data") in a table.

The table must be created first, which happens on the first instantiation of this class or when BuildPsiTable is first called.

Member Data Documentation

◆ Property

vtkVolumeProperty* vtkUnstructuredGridPartialPreIntegration::Property

protected

Definition at line 92 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ TransferFunctions

vtkPartialPreIntegrationTransferFunction* vtkUnstructuredGridPartialPreIntegration::TransferFunctions

protected

Definition at line 94 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ TransferFunctionsModified

vtkTimeStamp vtkUnstructuredGridPartialPreIntegration::TransferFunctionsModified

protected

Definition at line 95 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ NumIndependentComponents

int vtkUnstructuredGridPartialPreIntegration::NumIndependentComponents

protected

Definition at line 96 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ PsiTable

float vtkUnstructuredGridPartialPreIntegration::PsiTable[PSI_TABLE_SIZE *PSI_TABLE_SIZE]

staticprotected

Definition at line 103 of file vtkUnstructuredGridPartialPreIntegration.h.

◆ PsiTableBuilt

int vtkUnstructuredGridPartialPreIntegration::PsiTableBuilt

staticprotected

Definition at line 104 of file vtkUnstructuredGridPartialPreIntegration.h.

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

Rendering/Volume/vtkUnstructuredGridPartialPreIntegration.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ vtkUnstructuredGridPartialPreIntegration()

◆ ~vtkUnstructuredGridPartialPreIntegration()

Member Function Documentation

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ New()

◆ PrintSelf()

◆ Initialize()

◆ Integrate()

◆ IntegrateRay() [1/2]

◆ IntegrateRay() [2/2]

◆ Psi()

◆ GetPsiTable()

◆ BuildPsiTable()

Member Data Documentation

◆ Property

◆ TransferFunctions

◆ TransferFunctionsModified

◆ NumIndependentComponents

◆ PsiTable

◆ PsiTableBuilt