VTK
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
vtkUnstructuredGridLinearRayIntegrator Class Reference

performs piecewise linear ray integration. More...

#include <vtkUnstructuredGridLinearRayIntegrator.h>

Inheritance diagram for vtkUnstructuredGridLinearRayIntegrator:
[legend]
Collaboration diagram for vtkUnstructuredGridLinearRayIntegrator:
[legend]

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...
 
vtkUnstructuredGridLinearRayIntegratorNewInstance () 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
vtkUnstructuredGridVolumeRayIntegratorNewInstance () 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...
 
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)
 
vtkCommandGetCommand (unsigned long tag)
 
void RemoveObserver (vtkCommand *)
 
void RemoveObservers (unsigned long event, vtkCommand *)
 
void RemoveObservers (const char *event, vtkCommand *)
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 
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)
 
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)
 
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)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string. 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 PrintHeader (ostream &os, vtkIndent indent)
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 
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...
 
void PrintRevisions (ostream &)
 Legacy. More...
 

Static Public Member Functions

static vtkTypeBool IsTypeOf (const char *type)
 
static vtkUnstructuredGridLinearRayIntegratorSafeDownCast (vtkObjectBase *o)
 
static vtkUnstructuredGridLinearRayIntegratorNew ()
 
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])
 
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 Public Member Functions inherited from vtkUnstructuredGridVolumeRayIntegrator
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkUnstructuredGridVolumeRayIntegratorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 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 ()
 
static void GlobalWarningDisplayOff ()
 
static int GetGlobalWarningDisplay ()
 
- 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 vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () 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 ()
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void CollectRevisions (ostream &)
 
virtual void ReportReferences (vtkGarbageCollector *)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

vtkVolumePropertyProperty
 
vtkLinearRayIntegratorTransferFunction * TransferFunctions
 
vtkTimeStamp TransferFunctionsModified
 
int NumIndependentComponents
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32 ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

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 52 of file vtkUnstructuredGridLinearRayIntegrator.h.

Member Typedef Documentation

◆ Superclass

Definition at line 56 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

◆ 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

◆ 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 95 of file vtkUnstructuredGridLinearRayIntegrator.h.

◆ TransferFunctions

vtkLinearRayIntegratorTransferFunction* vtkUnstructuredGridLinearRayIntegrator::TransferFunctions
protected

Definition at line 97 of file vtkUnstructuredGridLinearRayIntegrator.h.

◆ TransferFunctionsModified

vtkTimeStamp vtkUnstructuredGridLinearRayIntegrator::TransferFunctionsModified
protected

Definition at line 98 of file vtkUnstructuredGridLinearRayIntegrator.h.

◆ NumIndependentComponents

int vtkUnstructuredGridLinearRayIntegrator::NumIndependentComponents
protected

Definition at line 99 of file vtkUnstructuredGridLinearRayIntegrator.h.


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