VTK  9.5.20251120
vtkInterpolateCalculator Class Referenceabstract

Calculate field values at a point in a cell's parametric space. More...

#include <vtkInterpolateCalculator.h>

Inheritance diagram for vtkInterpolateCalculator:
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Collaboration diagram for vtkInterpolateCalculator:
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Public Types

typedef vtkCellAttributeCalculator Superclass
 
- Public Types inherited from vtkCellAttributeCalculator
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.
 
vtkInterpolateCalculatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
- Public Member Functions inherited from vtkCellAttributeCalculator
vtkCellAttributeCalculatorNewInstance () const
 
template<typename CalculatorType>
vtkSmartPointer< CalculatorType > Prepare (vtkCellMetadata *cell, vtkCellAttribute *field)
 Return an instance of a calculator ready to work on cell and field.
 
virtual vtkSmartPointer< vtkCellAttributeCalculatorPrepareForGrid (vtkCellMetadata *cell, vtkCellAttribute *field)
 Subclasses should override this to create an instance of their class with member variables set to perform calculations on the given cell type and field.
 
- Public Member Functions inherited from vtkObject
 vtkBaseTypeMacro (vtkObject, vtkObjectBase)
 
virtual void DebugOn ()
 Turn debugging output on.
 
virtual void DebugOff ()
 Turn debugging output off.
 
bool GetDebug ()
 Get the value of the debug flag.
 
void SetDebug (bool debugFlag)
 Set the value of the debug flag.
 
virtual void Modified ()
 Update the modification time for this object.
 
virtual vtkMTimeType GetMTime ()
 Return this object's modified time.
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
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.
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkCommandGetCommand (unsigned long tag)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObserver (vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObservers (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObservers (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
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.
 
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.
 
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.
 
vtkTypeBool InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
vtkTypeBool InvokeEvent (const char *event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
virtual void SetObjectName (const std::string &objectName)
 Set/get the name of this object for reporting purposes.
 
virtual std::string GetObjectName () const
 Set/get the name of this object for reporting purposes.
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string.
 
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).
 
virtual void Delete ()
 Delete a VTK object.
 
virtual void FastDelete ()
 Delete a reference to this object.
 
void InitializeObjectBase ()
 
void Print (ostream &os)
 Print an object to an ostream.
 
void Register (vtkObjectBase *o)
 Increase the reference count (mark as used by another object).
 
virtual void UnRegister (vtkObjectBase *o)
 Decrease the reference count (release by another object).
 
int GetReferenceCount ()
 Return the current reference count of this object.
 
void SetReferenceCount (int)
 Sets the reference count.
 
bool GetIsInMemkind () const
 A local state flag that remembers whether this object lives in the normal or extended memory space.
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses.
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses.
 
virtual bool UsesGarbageCollector () const
 Indicate whether the class uses vtkGarbageCollector or not.
 

Static Public Member Functions

static vtkTypeBool IsTypeOf (const char *type)
 
static vtkInterpolateCalculatorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkCellAttributeCalculator
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkCellAttributeCalculatorSafeDownCast (vtkObjectBase *o)
 
static vtkCellAttributeCalculatorNew ()
 
- 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.
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes.
 
static void SetGlobalWarningDisplay (vtkTypeBool val)
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static void GlobalWarningDisplayOn ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static void GlobalWarningDisplayOff ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static vtkTypeBool GetGlobalWarningDisplay ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
- 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.
 
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).
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
 
static void SetMemkindDirectory (const char *directoryname)
 The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
 
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.
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
- Protected Member Functions inherited from vtkCellAttributeCalculator
 vtkCellAttributeCalculator ()=default
 
 ~vtkCellAttributeCalculator () override=default
 
- 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.
 
void InternalReleaseFocus ()
 These methods allow a command to exclusively grab all events.
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void ReportReferences (vtkGarbageCollector *)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

InterpolatingValues Interpolating Values

virtual void Evaluate (vtkIdType cellId, const vtkVector3d &rst, std::vector< double > &value)=0
 
virtual void Evaluate (vtkIdTypeArray *cellIds, vtkDataArray *rst, vtkDataArray *result)=0
 Subclasses may override this method to perform multiple evaluations at a time.
 
virtual bool AnalyticDerivative () const
 Return true if the function has an analytic derivative.
 
virtual void EvaluateDerivative (vtkIdType cellId, const vtkVector3d &rst, std::vector< double > &jacobian, double neighborhood=1e-3)
 Return the derivative of the function at rst.
 
virtual void EvaluateDerivative (vtkIdTypeArray *cellIds, vtkDataArray *rst, vtkDataArray *result)=0
 Subclasses may override this method to perform multiple derivative-evaluations at a time.
 
 vtkInterpolateCalculator ()=default
 
 ~vtkInterpolateCalculator () override=default
 

Additional Inherited Members

- Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction GetCurrentMallocFunction ()
 
static vtkReallocingFunction GetCurrentReallocFunction ()
 
static vtkFreeingFunction GetCurrentFreeFunction ()
 
static vtkFreeingFunction GetAlternateFreeFunction ()
 
- 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
 

Detailed Description

Calculate field values at a point in a cell's parametric space.

Interpolate a field's value and possibly derivatives at a point in a cell.

Tests:
vtkInterpolateCalculator (Tests)

Definition at line 29 of file vtkInterpolateCalculator.h.

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkInterpolateCalculator()

vtkInterpolateCalculator::vtkInterpolateCalculator ( )
protecteddefault

Subclasses must override this method to perform evaluation.

You must resize value before calling Evaluate so there is enough space to hold the resulting value(s).

◆ ~vtkInterpolateCalculator()

vtkInterpolateCalculator::~vtkInterpolateCalculator ( )
overrideprotecteddefault

Subclasses must override this method to perform evaluation.

You must resize value before calling Evaluate so there is enough space to hold the resulting value(s).

Member Function Documentation

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkInterpolateCalculator::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 vtkCellAttributeCalculator.

Reimplemented in vtkDGInterpolateCalculator.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkInterpolateCalculator::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkCellAttributeCalculator.

Reimplemented in vtkDGInterpolateCalculator.

◆ NewInstance()

vtkInterpolateCalculator * vtkInterpolateCalculator::NewInstance ( ) const

◆ PrintSelf()

void vtkInterpolateCalculator::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 vtkCellAttributeCalculator.

◆ Evaluate() [1/2]

virtual void vtkInterpolateCalculator::Evaluate ( vtkIdType cellId,
const vtkVector3d & rst,
std::vector< double > & value )
pure virtual

Subclasses must override this method to perform evaluation.

You must resize value before calling Evaluate so there is enough space to hold the resulting value(s).

Implemented in vtkDGInterpolateCalculator.

◆ Evaluate() [2/2]

virtual void vtkInterpolateCalculator::Evaluate ( vtkIdTypeArray * cellIds,
vtkDataArray * rst,
vtkDataArray * result )
pure virtual

Subclasses may override this method to perform multiple evaluations at a time.

Implemented in vtkDGInterpolateCalculator.

◆ AnalyticDerivative()

virtual bool vtkInterpolateCalculator::AnalyticDerivative ( ) const
inlinevirtual

Return true if the function has an analytic derivative.

Reimplemented in vtkDGInterpolateCalculator.

Definition at line 47 of file vtkInterpolateCalculator.h.

◆ EvaluateDerivative() [1/2]

virtual void vtkInterpolateCalculator::EvaluateDerivative ( vtkIdType cellId,
const vtkVector3d & rst,
std::vector< double > & jacobian,
double neighborhood = 1e-3 )
virtual

Return the derivative of the function at rst.

The derivative should be ordered as d/dx, d/dy, then d/dz.

If you do not override AnalyticDerivative and EvaluateDerivative, this class will approximate the derivative by perturbing along each axis to compute a finite difference.

In the case of a non-analytic derivative, you can control the magnitude of the difference along each axis by passing a different neighborhood value.

Reimplemented in vtkDGInterpolateCalculator.

◆ EvaluateDerivative() [2/2]

virtual void vtkInterpolateCalculator::EvaluateDerivative ( vtkIdTypeArray * cellIds,
vtkDataArray * rst,
vtkDataArray * result )
pure virtual

Subclasses may override this method to perform multiple derivative-evaluations at a time.

Implemented in vtkDGInterpolateCalculator.


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