VTK
9.1.0
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performs ray integration with pre-integration tables. More...
#include <vtkUnstructuredGridPreIntegration.h>
Public Types | |
typedef vtkUnstructuredGridVolumeRayIntegrator | Superclass |
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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... | |
vtkUnstructuredGridPreIntegration * | 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... | |
virtual float * | GetPreIntegrationTable (int component=0) |
Get the partial pre-integration table for the given scalar component. More... | |
float * | GetTableEntry (double scalar_front, double scalar_back, double length, int component=0) |
Get an entry (RGBA) in one of the pre-integration tables. More... | |
float * | GetIndexedTableEntry (int scalar_front_index, int scalar_back_index, int length_index, int component=0) |
Like GetTableEntry, except the inputs are scaled indices into the table rather than than the actual scalar and length values. More... | |
virtual vtkUnstructuredGridVolumeRayIntegrator * | GetIntegrator () |
The class used to fill the pre integration table. More... | |
virtual void | SetIntegrator (vtkUnstructuredGridVolumeRayIntegrator *) |
The class used to fill the pre integration table. More... | |
virtual void | SetIntegrationTableScalarResolution (int) |
Set/Get the size of the integration table built. More... | |
virtual int | GetIntegrationTableScalarResolution () |
Set/Get the size of the integration table built. More... | |
virtual void | SetIntegrationTableLengthResolution (int) |
Set/Get the size of the integration table built. More... | |
virtual int | GetIntegrationTableLengthResolution () |
Set/Get the size of the integration table built. More... | |
virtual double | GetIntegrationTableScalarShift (int component=0) |
Get how an integration table is indexed. More... | |
virtual double | GetIntegrationTableScalarScale (int component=0) |
Get how an integration table is indexed. More... | |
virtual double | GetIntegrationTableLengthScale () |
Get how an integration table is indexed. More... | |
virtual vtkTypeBool | GetIncrementalPreIntegration () |
Get/set whether to use incremental pre-integration (by default it's on). More... | |
virtual void | SetIncrementalPreIntegration (vtkTypeBool) |
Get/set whether to use incremental pre-integration (by default it's on). More... | |
virtual void | IncrementalPreIntegrationOn () |
Get/set whether to use incremental pre-integration (by default it's on). More... | |
virtual void | IncrementalPreIntegrationOff () |
Get/set whether to use incremental pre-integration (by default it's on). More... | |
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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... | |
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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... | |
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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 vtkUnstructuredGridPreIntegration * | SafeDownCast (vtkObjectBase *o) |
static vtkUnstructuredGridPreIntegration * | New () |
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static vtkTypeBool | IsTypeOf (const char *type) |
static vtkUnstructuredGridVolumeRayIntegrator * | SafeDownCast (vtkObjectBase *o) |
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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... | |
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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 Attributes | |
vtkUnstructuredGridVolumeRayIntegrator * | Integrator |
vtkVolume * | Volume |
vtkVolumeProperty * | Property |
double | MaxLength |
int | NumComponents |
float ** | IntegrationTable |
double * | IntegrationTableScalarShift |
double * | IntegrationTableScalarScale |
double | IntegrationTableLengthScale |
vtkTimeStamp | IntegrationTableBuilt |
int | IntegrationTableScalarResolution |
int | IntegrationTableLengthResolution |
vtkTypeBool | IncrementalPreIntegration |
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bool | Debug |
vtkTimeStamp | MTime |
vtkSubjectHelper * | SubjectHelper |
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std::atomic< int32_t > | ReferenceCount |
vtkWeakPointerBase ** | WeakPointers |
Additional Inherited Members | |
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static vtkMallocingFunction | GetCurrentMallocFunction () |
static vtkReallocingFunction | GetCurrentReallocFunction () |
static vtkFreeingFunction | GetCurrentFreeFunction () |
static vtkFreeingFunction | GetAlternateFreeFunction () |
performs ray integration with pre-integration tables.
vtkUnstructuredGridPreIntegration performs ray integration by looking into a precomputed table. The result should be equivalent to that computed by vtkUnstructuredGridLinearRayIntegrator and vtkUnstructuredGridPartialPreIntegration, but faster than either one. The pre-integration algorithm was first introduced by Roettger, Kraus, and Ertl in "Hardware-Accelerated Volume And Isosurface Rendering Based On Cell-Projection."
Due to table size limitations, a table can only be indexed by independent scalars. Thus, dependent scalars are not supported.
Definition at line 52 of file vtkUnstructuredGridPreIntegration.h.
Definition at line 56 of file vtkUnstructuredGridPreIntegration.h.
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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.
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Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.
vtkUnstructuredGridPreIntegration * vtkUnstructuredGridPreIntegration::NewInstance | ( | ) | const |
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Set up the integrator with the given properties and scalars.
Implements vtkUnstructuredGridVolumeRayIntegrator.
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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.
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The class used to fill the pre integration table.
By default, a vtkUnstructuredGridPartialPreIntegration is built.
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The class used to fill the pre integration table.
By default, a vtkUnstructuredGridPartialPreIntegration is built.
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Set/Get the size of the integration table built.
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Set/Get the size of the integration table built.
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Set/Get the size of the integration table built.
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Set/Get the size of the integration table built.
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Get how an integration table is indexed.
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Get how an integration table is indexed.
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Get how an integration table is indexed.
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Get/set whether to use incremental pre-integration (by default it's on).
Incremental pre-integration is much faster but can introduce error due to numerical imprecision. Under most circumstances, the error is not noticeable.
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Get/set whether to use incremental pre-integration (by default it's on).
Incremental pre-integration is much faster but can introduce error due to numerical imprecision. Under most circumstances, the error is not noticeable.
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Get/set whether to use incremental pre-integration (by default it's on).
Incremental pre-integration is much faster but can introduce error due to numerical imprecision. Under most circumstances, the error is not noticeable.
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Get/set whether to use incremental pre-integration (by default it's on).
Incremental pre-integration is much faster but can introduce error due to numerical imprecision. Under most circumstances, the error is not noticeable.
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Get the partial pre-integration table for the given scalar component.
The tables are built when Initialize is called. A segment of length d with a front scalar of sf and a back scalar of sb is referenced in the resulting table as 4 * ((l * IntegrationTableLengthScale
) * IntegrationTableScalarResolution
* IntegrationTableScalarResolution
IntegrationTableScalarScale
+ IntegrationTableScalarShift
) * IntegrationTableScalarResolution
IntegrationTableScalarScale
+ IntegrationTableScalarShift
)).
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Get an entry (RGBA) in one of the pre-integration tables.
The tables are built when Initialize is called.
Definition at line 187 of file vtkUnstructuredGridPreIntegration.h.
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Like GetTableEntry, except the inputs are scaled indices into the table rather than than the actual scalar and length values.
Use GetTableEntry unless you are really sure you know what you are doing.
Definition at line 161 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 136 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 138 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 139 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 140 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 142 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 143 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 144 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 145 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 146 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 147 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 149 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 150 of file vtkUnstructuredGridPreIntegration.h.
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Definition at line 152 of file vtkUnstructuredGridPreIntegration.h.