performs piecewise linear ray integration. More...

#include <vtkUnstructuredGridLinearRayIntegrator.h>

Inheritance diagram for vtkUnstructuredGridLinearRayIntegrator:

Collaboration diagram for vtkUnstructuredGridLinearRayIntegrator:

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...

vtkUnstructuredGridLinearRayIntegrator *	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
vtkUnstructuredGridVolumeRayIntegrator *	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 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	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)

vtkTypeBool	InvokeEvent (unsigned long event)

vtkTypeBool	InvokeEvent (const char *event)

std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output. More...

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...

vtkTypeBool	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

vtkTypeBool	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not. More...

virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes. More...

virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes. More...

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. 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...

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...

virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses `vtkGarbageCollector` or not. More...

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

static vtkUnstructuredGridLinearRayIntegrator *	SafeDownCast (vtkObjectBase *o)

static vtkUnstructuredGridLinearRayIntegrator *	New ()

static float	Psi (float length, float attenuation_front, float attenuation_back)
	Computes Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data"). More...


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 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 (vtkTypeBool 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 vtkTypeBool	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

	vtkUnstructuredGridLinearRayIntegrator ()

	~vtkUnstructuredGridLinearRayIntegrator () override

Protected Member Functions inherited from vtkUnstructuredGridVolumeRayIntegrator
	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	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkVolumeProperty *	Property

vtkLinearRayIntegratorTransferFunction *	TransferFunctions

vtkTimeStamp	TransferFunctionsModified

int	NumIndependentComponents

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

std::string	ObjectName

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

performs piecewise linear ray integration.

vtkUnstructuredGridLinearRayIntegrator performs piecewise linear ray integration. Considering that transfer functions in VTK are piecewise linear, this class should give the "correct" integration under most circumstances. However, the computations performed are fairly hefty and should, for the most part, only be used as a benchmark for other, faster methods.

See also: vtkUnstructuredGridPartialPreIntegration

Definition at line 33 of file vtkUnstructuredGridLinearRayIntegrator.h.

Member Typedef Documentation

◆ Superclass

typedef vtkUnstructuredGridVolumeRayIntegrator vtkUnstructuredGridLinearRayIntegrator::Superclass

Definition at line 37 of file vtkUnstructuredGridLinearRayIntegrator.h.

Constructor & Destructor Documentation

◆ vtkUnstructuredGridLinearRayIntegrator()

vtkUnstructuredGridLinearRayIntegrator::vtkUnstructuredGridLinearRayIntegrator ( )

protected

◆ ~vtkUnstructuredGridLinearRayIntegrator()

vtkUnstructuredGridLinearRayIntegrator::~vtkUnstructuredGridLinearRayIntegrator ( )

overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool vtkUnstructuredGridLinearRayIntegrator::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 vtkUnstructuredGridLinearRayIntegrator* vtkUnstructuredGridLinearRayIntegrator::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkUnstructuredGridLinearRayIntegrator::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.

◆ NewInstance()

vtkUnstructuredGridLinearRayIntegrator* vtkUnstructuredGridLinearRayIntegrator::NewInstance ( ) const

◆ New()

static vtkUnstructuredGridLinearRayIntegrator* vtkUnstructuredGridLinearRayIntegrator::New ( )

static

◆ PrintSelf()

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

overridevirtual

Set up the integrator with the given properties and scalars.

Implements vtkUnstructuredGridVolumeRayIntegrator.

◆ Integrate()

void vtkUnstructuredGridLinearRayIntegrator::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]

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

static

Integrates a single ray segment.

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

◆ IntegrateRay() [2/2]

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

static

Integrates a single ray segment.

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

◆ Psi()

static float vtkUnstructuredGridLinearRayIntegrator::Psi	(	float	length,
		float	attenuation_front,
		float	attenuation_back
	)

static

Computes Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data").

Member Data Documentation

◆ Property

vtkVolumeProperty* vtkUnstructuredGridLinearRayIntegrator::Property

protected

Definition at line 67 of file vtkUnstructuredGridLinearRayIntegrator.h.

◆ TransferFunctions

vtkLinearRayIntegratorTransferFunction* vtkUnstructuredGridLinearRayIntegrator::TransferFunctions

protected

Definition at line 69 of file vtkUnstructuredGridLinearRayIntegrator.h.

◆ TransferFunctionsModified

vtkTimeStamp vtkUnstructuredGridLinearRayIntegrator::TransferFunctionsModified

protected

Definition at line 70 of file vtkUnstructuredGridLinearRayIntegrator.h.

◆ NumIndependentComponents

int vtkUnstructuredGridLinearRayIntegrator::NumIndependentComponents

protected

Definition at line 71 of file vtkUnstructuredGridLinearRayIntegrator.h.

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

Rendering/Volume/vtkUnstructuredGridLinearRayIntegrator.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

◆ vtkUnstructuredGridLinearRayIntegrator()

◆ ~vtkUnstructuredGridLinearRayIntegrator()

Member Function Documentation

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ New()

◆ PrintSelf()

◆ Initialize()

◆ Integrate()

◆ IntegrateRay() [1/2]

◆ IntegrateRay() [2/2]

◆ Psi()

Member Data Documentation

◆ Property

◆ TransferFunctions

◆ TransferFunctionsModified

◆ NumIndependentComponents