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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.
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vtkFFT * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses.
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| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on.
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virtual void | DebugOff () |
| Turn debugging output off.
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bool | GetDebug () |
| Get the value of the debug flag.
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag.
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virtual void | Modified () |
| Update the modification time for this object.
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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time.
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses.
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void | RemoveObserver (unsigned long tag) |
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void | RemoveObservers (unsigned long event) |
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void | RemoveObservers (const char *event) |
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void | RemoveAllObservers () |
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vtkTypeBool | HasObserver (unsigned long event) |
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vtkTypeBool | HasObserver (const char *event) |
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int | InvokeEvent (unsigned long event) |
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int | InvokeEvent (const char *event) |
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unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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vtkCommand * | GetCommand (unsigned long tag) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObserver (vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObservers (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObservers (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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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.
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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.
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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.
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int | InvokeEvent (unsigned long event, void *callData) |
| This method invokes an event and return whether the event was aborted or not.
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int | InvokeEvent (const char *event, void *callData) |
| This method invokes an event and return whether the event was aborted or not.
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const char * | GetClassName () const |
| Return the class name as a string.
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virtual vtkTypeBool | IsA (const char *name) |
| Return 1 if this class is the same type of (or a subclass of) the named class.
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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).
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virtual void | Delete () |
| Delete a VTK object.
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virtual void | FastDelete () |
| Delete a reference to this object.
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void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream.
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virtual void | Register (vtkObjectBase *o) |
| Increase the reference count (mark as used by another object).
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virtual void | UnRegister (vtkObjectBase *o) |
| Decrease the reference count (release by another object).
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int | GetReferenceCount () |
| Return the current reference count of this object.
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void | SetReferenceCount (int) |
| Sets the reference count.
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bool | GetIsInMemkind () const |
| A local state flag that remembers whether this object lives in the normal or extended memory space.
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses.
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses.
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static vtkFFT * | New () |
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkFFT * | SafeDownCast (vtkObjectBase *o) |
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static std::vector< ComplexNumber > | Fft (const std::vector< ComplexNumber > &in) |
| Compute the one-dimensional DFT for complex input.
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static std::vector< ComplexNumber > | Fft (const std::vector< ScalarNumber > &in) |
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static std::vector< ComplexNumber > | RFft (const std::vector< ScalarNumber > &in) |
| Compute the one-dimensional DFT for real input.
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static std::vector< ComplexNumber > | IFft (const std::vector< ComplexNumber > &in) |
| Compute the inverse of Fft .
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static std::vector< ScalarNumber > | IRFft (const std::vector< ComplexNumber > &in) |
| Compute the inverse of RFft .
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static double | Abs (const ComplexNumber &in) |
| Return the absolute value (also known as norm, modulus, or magnitude) of complex number.
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static double | SquaredAbs (const ComplexNumber &in) |
| Return the squared absolute value of the complex number.
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static std::vector< double > | FftFreq (int windowLength, double sampleSpacing) |
| Return the DFT sample frequencies.
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static std::vector< double > | RFftFreq (int windowLength, double sampleSpacing) |
| Return the DFT sample frequencies for the real version of the dft (see Rfft ).
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static double | HanningGenerator (const std::size_t x, const std::size_t size) |
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static double | BartlettGenerator (const std::size_t x, const std::size_t size) |
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static double | SineGenerator (const std::size_t x, const std::size_t size) |
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static double | BlackmanGenerator (const std::size_t x, const std::size_t size) |
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static double | RectangularGenerator (const std::size_t x, const std::size_t size) |
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template<typename Array1D > |
static void | GenerateKernel1D (Array1D *kernel, const std::size_t n, WindowGenerator generator) |
| Given a window generator function, create a symmetric 1D kernel.
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template<typename Array2D > |
static void | GenerateKernel2D (Array2D *kernel, const std::size_t n, const std::size_t m, WindowGenerator generator) |
| Given a window generator function, create a symmetric 2D kernel.
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static vtkObject * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
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static void | BreakOnError () |
| This method is called when vtkErrorMacro executes.
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static void | SetGlobalWarningDisplay (int val) |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static void | GlobalWarningDisplayOn () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static void | GlobalWarningDisplayOff () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static int | GetGlobalWarningDisplay () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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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.
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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).
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static vtkObjectBase * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
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static void | SetMemkindDirectory (const char *directoryname) |
| The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
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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.
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perform Discrete Fourier Transforms
vtkFFT provides methods to perform Discrete Fourier Transforms (DFT). These include providing forward and reverse Fourier transforms. The current implementation uses the third-party library kissfft.
The terminology tries to follow the Numpy terminology, that is :
- Fft means the Fast Fourier Tranform algorithm
- Prefix
R
stands for Real (meaning optimized function for real inputs)
- Prefix
I
stands for Inverse
Definition at line 45 of file vtkFFT.h.