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vtkOpenGLVolumeLookupTable Class Reference

Base class for OpenGL texture management of scalar color, opacity and gradient opacity lookup tables. More...

#include <vtkOpenGLVolumeLookupTable.h>

Inheritance diagram for vtkOpenGLVolumeLookupTable:
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Collaboration diagram for vtkOpenGLVolumeLookupTable:
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Public Types

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...
 
vtkOpenGLVolumeLookupTableNewInstance () 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...
 
void Activate ()
 Activate / deactivate the internal texture object. More...
 
void Deactivate ()
 
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...
 
- 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 vtkOpenGLVolumeLookupTableSafeDownCast (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
 
 vtkOpenGLVolumeLookupTable ()=default
 
virtual ~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 ()
 
- 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

double LastRange [2] = { 0.0, 0.0 }
 
floatTable = nullptr
 
int LastInterpolation = -1
 
int NumberOfColorComponents = 1
 
int TextureWidth = 1024
 
int TextureHeight = 1
 
vtkTextureObjectTextureObject = nullptr
 
vtkTimeStamp BuildTime
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32 ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Detailed Description

Base class for OpenGL texture management of scalar color, opacity and gradient opacity lookup tables.

Definition at line 35 of file vtkOpenGLVolumeLookupTable.h.

Member Typedef Documentation

◆ Superclass

Definition at line 38 of file vtkOpenGLVolumeLookupTable.h.

Constructor & Destructor Documentation

◆ vtkOpenGLVolumeLookupTable()

vtkOpenGLVolumeLookupTable::vtkOpenGLVolumeLookupTable ( )
protecteddefault

◆ ~vtkOpenGLVolumeLookupTable()

virtual vtkOpenGLVolumeLookupTable::~vtkOpenGLVolumeLookupTable ( )
overrideprotectedvirtual

Member Function Documentation

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkOpenGLVolumeLookupTable::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 vtkObjectBase.

Reimplemented in vtkOpenGLVolumeMaskGradientOpacityTransferFunction2D, vtkOpenGLVolumeMaskTransferFunction2D, vtkOpenGLVolumeTransferFunction2D, vtkOpenGLVolumeOpacityTable, vtkOpenGLVolumeGradientOpacityTable, and vtkOpenGLVolumeRGBTable.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkOpenGLVolumeLookupTable::NewInstanceInternal ( ) const
protectedvirtual

◆ NewInstance()

vtkOpenGLVolumeLookupTable* vtkOpenGLVolumeLookupTable::NewInstance ( ) const

◆ PrintSelf()

void vtkOpenGLVolumeLookupTable::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.

Reimplemented in vtkOpenGLVolumeMaskGradientOpacityTransferFunction2D, vtkOpenGLVolumeMaskTransferFunction2D, vtkOpenGLVolumeTransferFunction2D, vtkOpenGLVolumeOpacityTable, and vtkOpenGLVolumeRGBTable.

◆ GetTextureUnit()

int vtkOpenGLVolumeLookupTable::GetTextureUnit ( )

Get the texture unit associated with the managed texture object.

◆ Activate()

void vtkOpenGLVolumeLookupTable::Activate ( )

Activate / deactivate the internal texture object.

◆ Deactivate()

void vtkOpenGLVolumeLookupTable::Deactivate ( )

◆ GetMaximumSupportedTextureWidth()

int vtkOpenGLVolumeLookupTable::GetMaximumSupportedTextureWidth ( vtkOpenGLRenderWindow renWin,
int  idealWidth 
)

Get the maximum supported texture width for the target OpenGL environment.

◆ ReleaseGraphicsResources()

void vtkOpenGLVolumeLookupTable::ReleaseGraphicsResources ( vtkWindow window)

Release graphics resources.

◆ Update()

virtual void vtkOpenGLVolumeLookupTable::Update ( vtkObject func,
double  scalarRange[2],
int  blendMode,
double  sampleDistance,
double  unitDistance,
int  filterValue,
vtkOpenGLRenderWindow renWin 
)
virtual

Update the internal texture object using the transfer function provided.

◆ GetTextureHeight()

virtual int vtkOpenGLVolumeLookupTable::GetTextureHeight ( )
virtual

Get access to the texture height used by this object.

◆ GetTextureWidth()

virtual int vtkOpenGLVolumeLookupTable::GetTextureWidth ( )
virtual

Get access to the texture width used by this object.

◆ NeedsUpdate()

virtual bool vtkOpenGLVolumeLookupTable::NeedsUpdate ( vtkObject func,
double  scalarRange[2],
int  blendMode,
double  sampleDistance 
)
protectedvirtual

Test whether the internal function needs to be updated.

Reimplemented in vtkOpenGLVolumeTransferFunction2D, and vtkOpenGLVolumeOpacityTable.

◆ InternalUpdate()

virtual void vtkOpenGLVolumeLookupTable::InternalUpdate ( vtkObject func,
int  blendMode,
double  sampleDistance,
double  unitDistance,
int  filterValue 
)
protectedvirtual

◆ ComputeIdealTextureSize()

virtual void vtkOpenGLVolumeLookupTable::ComputeIdealTextureSize ( vtkObject func,
int width,
int height,
vtkOpenGLRenderWindow renWin 
)
protectedvirtual

Compute ideal width and height for the texture based on function provided.

Reimplemented in vtkOpenGLVolumeMaskGradientOpacityTransferFunction2D, and vtkOpenGLVolumeMaskTransferFunction2D.

◆ AllocateTable()

virtual void vtkOpenGLVolumeLookupTable::AllocateTable ( )
protectedvirtual

Allocate internal data table.

Reimplemented in vtkOpenGLVolumeTransferFunction2D.

Member Data Documentation

◆ LastRange

double vtkOpenGLVolumeLookupTable::LastRange[2] = { 0.0, 0.0 }
protected

Definition at line 92 of file vtkOpenGLVolumeLookupTable.h.

◆ Table

float* vtkOpenGLVolumeLookupTable::Table = nullptr
protected

Definition at line 93 of file vtkOpenGLVolumeLookupTable.h.

◆ LastInterpolation

int vtkOpenGLVolumeLookupTable::LastInterpolation = -1
protected

Definition at line 94 of file vtkOpenGLVolumeLookupTable.h.

◆ NumberOfColorComponents

int vtkOpenGLVolumeLookupTable::NumberOfColorComponents = 1
protected

Definition at line 95 of file vtkOpenGLVolumeLookupTable.h.

◆ TextureWidth

int vtkOpenGLVolumeLookupTable::TextureWidth = 1024
protected

Definition at line 96 of file vtkOpenGLVolumeLookupTable.h.

◆ TextureHeight

int vtkOpenGLVolumeLookupTable::TextureHeight = 1
protected

Definition at line 97 of file vtkOpenGLVolumeLookupTable.h.

◆ TextureObject

vtkTextureObject* vtkOpenGLVolumeLookupTable::TextureObject = nullptr
protected

Definition at line 98 of file vtkOpenGLVolumeLookupTable.h.

◆ BuildTime

vtkTimeStamp vtkOpenGLVolumeLookupTable::BuildTime
protected

Definition at line 99 of file vtkOpenGLVolumeLookupTable.h.


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