A B C D E F G H I J L M N O P R S T U V W

A

add(Complex, Complex) - Static method in class jfftw.Complex

Static add method with two parameters

add(int, double) - Method in class jfftw.ComplexDataArray

Add a double to real part of element

add(int, double, double) - Method in class jfftw.ComplexDataArray

Add a Complex to specified

add(int, double) - Method in class jfftw.DataArray

Method to add a real double to an element in one-dimensions.

add(int, int, double) - Method in class jfftw.DataArray

Method to add a real double to an element in two-dimensions.

add(int, int, int, double) - Method in class jfftw.DataArray

Method to add a real double to an element in three-dimensions.

add(int, double, double) - Method in class jfftw.DataArray

Method to add a complex to an element in one-dimensions.

add(int, Complex) - Method in class jfftw.DataArray

Method to add a Complex to an element in one-dimensions.

add(int, int, Complex) - Method in class jfftw.DataArray

Method to add a Complex to an element in two-dimensions.

add(int, int, int, Complex) - Method in class jfftw.DataArray

Method to add a Complex to an element in three-dimensions.

add(DataArray) - Method in class jfftw.DataArray

Method to add a specified DataArray to the current DataArray, both must be the same size.

add(int, double) - Method in class jfftw.RealDataArray

Add a double to an element

add(int, double, double) - Method in class jfftw.RealDataArray

Add a Complex specified by two doubles to an element

addPlanFlag(int) - Method in class jfftw.FFTW

Method to add to the plan flag

addTo(Complex) - Method in class jfftw.Complex

Method to add to the current Complex

addTo(double, double) - Method in class jfftw.Complex

Void method to add to the current Complex

ArrayUtil - Class in jfftw

Class containing some useful static method to manipulate double arrays containing complex data used in jfftw.

ArrayUtil() - Constructor for class jfftw.ArrayUtil

B

BACKWARD - Static variable in class jfftw.FFTW

Flag for backward (on inverse) FFT

BOTH - Static variable in class jfftw.Complex

Static to specify both parts of a Complex number

C

centreFourier() - Method in class jfftw.DataArray

Method to form centred Fourier using applying checker pattern to shift DC the centre of the array.

checker() - Method in class jfftw.ComplexDataArray

Method to apply a +/1 checker patterns to the Complex data, used to form centred FFTW.

checker() - Method in class jfftw.DataArray

Abstract method to apply a checker pattern to shift the centre

checker() - Method in class jfftw.RealDataArray

Method to apply a checker in either Real or Fourier space.

CheckerBoard - Class in jfftw.demo

Test program to form a two-dimensional checkerboard in a complex two-dimensional data array.

CheckerBoard() - Constructor for class jfftw.demo.CheckerBoard

clear() - Method in class jfftw.DataArray

Method to clear the databuffer by setting all elements to zero.

clearWisdom() - Method in class jfftw.FFTW

Void method to clear the wisdom information

clone() - Method in class jfftw.Complex

Method to clone the current Complex

clone() - Method in class jfftw.ComplexDataArray

Form a deep clone of current ComplexDataArray, including data.

clone() - Method in class jfftw.RealDataArray

Form a deep clone of current RealDataArray, including data.

Complex - Class in jfftw

Class to handle Complex numbers and arithmetic.

Complex(double, double) - Constructor for class jfftw.Complex

Constructor for Complex with two doubles

Complex(double) - Constructor for class jfftw.Complex

Constructor for Complex with real part only

Complex() - Constructor for class jfftw.Complex

Default constructor for Complex with both real and imaginary zero

Complex(Complex) - Constructor for class jfftw.Complex

Constructor for Complex with Complex parameter

ComplexDataArray - Class in jfftw

Class to handle Complex Data arrays in either Real or Fourier space.

ComplexDataArray(int, int, int) - Constructor for class jfftw.ComplexDataArray

Constructor to form a three-dimensional ComplexDataArray, which defaults to FFTW.REAL space.

ComplexDataArray(int, int) - Constructor for class jfftw.ComplexDataArray

Constructor to form a two-dimensional ComplexDataArray, which defaults to FFTW.REAL space.

ComplexDataArray(int) - Constructor for class jfftw.ComplexDataArray

Constructor to form a one-dimensional ComplexDataArray, which defaults to FFTW.REAL space.

ComplexDataArray(int, int, int, double[]) - Constructor for class jfftw.ComplexDataArray

Form a general ComplexDataArray with specified dimensional and supplied data array, which is NOT copied, it is used internally.

ComplexDataArray(DataArray) - Constructor for class jfftw.ComplexDataArray

Form a ComplexDataArray from supplied DataArray.

ComplexDataArray(BufferedImage, int) - Constructor for class jfftw.ComplexDataArray

Constructor to form the a two-dimensional ComplexDataArray from a band of a Java BufferedImage.

ComplexDemo - Class in jfftw.demo

ComplexDemo() - Constructor for class jfftw.demo.ComplexDemo

conj() - Method in class jfftw.Complex

The Complex conjugate of the current Complex

conjugate(double[], int) - Static method in class jfftw.ArrayUtil

Conjugate specified element of an interleaved array

conjugate(double[]) - Static method in class jfftw.ArrayUtil

Method to take form the conjugate of an interleaved array by taking the negative of imaginary parts.

conjugate(double[][]) - Static method in class jfftw.ArrayUtil

Method to take form the conjugate of a split array by taking the negative of the imaginary parts.

conjugate(int) - Method in class jfftw.ComplexDataArray

Form the conjugate of the element on one-dimensions by negating the imaginary parts.

conjugate(int) - Method in class jfftw.DataArray

Method to form the Complex conjugate of an element in one-dimensions.

conjugate(int, int) - Method in class jfftw.DataArray

Method to form the Complex conjugate of an element in two-dimensions.

conjugate(int, int, int) - Method in class jfftw.DataArray

Method to form the Complex conjugate of an element in three-dimensions.

conjugate() - Method in class jfftw.DataArray

Method to take conjugate of the whole DataBuffer.

conjugate(int) - Method in class jfftw.RealDataArray

Form the conjugate of the ith Complex element.

conversionFlag - Variable in class jfftw.DataArray

Flag for Complex to double conversion, initially defaults to Complex.MODULUS

currentWidth - Variable in class jfftw.DataArray

Current width span of data, this will alter under FFTs of real data.

D

DataArray - Class in jfftw

Abstract Class type to manipulate hold data for FFTW methods.

DataArray() - Constructor for class jfftw.DataArray

dataBuffer - Variable in class jfftw.DataArray

Internal data buffer holding the data in double[] array

deletePlan() - Method in class jfftw.FFTWEngine

Method delete the current plan.

depth - Variable in class jfftw.DataArray

Depth or third size of the data array

depth - Variable in class jfftw.FFTWEngine

Depth of the data

E

errorStream - Variable in class jfftw.DataArray

PrintStream on which errors are printed.

errorStream - Static variable in class jfftw.FFTW

PrintStream for warning and error messages.

ESTIMATE - Static variable in class jfftw.FFTW

Flag for quick and dirty plan search (fast, but not optimal)

EXHAUSTIVE - Static variable in class jfftw.FFTW

Flag for exhaustive plan search (very slow)

exportWisdom(String) - Method in class jfftw.FFTW

Boolean method to export the current wisdom to a file.

F

fft - Variable in class jfftw.FFTWComplexEngine

fft - Variable in class jfftw.FFTWComplexToRealEngine

fft - Variable in class jfftw.FFTWRealToComplexEngine

fftw - Static variable in class jfftw.DataArray

Static FFTW object used for taking the ffts, this is loaded statically once and pass shared to all instances.

FFTW - Class in jfftw

Basic class for Java access to the fftw3 library to take Fourier Transforms or one-dimensional, two-dimensional or three-dimensional data held in double[] arrays.

FFTW() - Constructor for class jfftw.FFTW

Default constructor, do nothing but load the sharable library.

FFTW(FFTW) - Constructor for class jfftw.FFTW

Constructor to form a new FFTW, being a copy of the specified one.

FFTW(boolean) - Constructor for class jfftw.FFTW

Constructor with flag to optionally load the system wisdom file.

FFTW(String) - Constructor for class jfftw.FFTW

Constructor to load specified wisdom file specified by name.

FFTWComplex - Class in jfftw

Class to implement simple one-off Complex to Complex Fourier transforms using jfftw as a native library.

FFTWComplex() - Constructor for class jfftw.FFTWComplex

Default constructor which load sharable library and sets defaults.

FFTWComplex(FFTW) - Constructor for class jfftw.FFTWComplex

Constructor to form a FFTWComplex from a FFTW, The PlanFlag is also copied.

FFTWComplex(boolean) - Constructor for class jfftw.FFTWComplex

Constructor to optionally load system wisdom file

FFTWComplex(String) - Constructor for class jfftw.FFTWComplex

Constructor to load specified wisdom file by name

FFTWComplexDemo - Class in jfftw.demo

FFTWComplexDemo() - Constructor for class jfftw.demo.FFTWComplexDemo

FFTWComplexDemoSplit - Class in jfftw.demo

FFTWComplexDemoSplit() - Constructor for class jfftw.demo.FFTWComplexDemoSplit

FFTWComplexEngine - Class in jfftw

Class to form Complex Engine with complex input and output buffer for taking either forward of backward FFTs

FFTWComplexEngine(int, int, int, double[], double[], int) - Constructor for class jfftw.FFTWComplexEngine

Form a three-dimensional ComplexEngine of specified size with specified input and output buffers.

FFTWComplexEngine(int, int, double[], double[], int) - Constructor for class jfftw.FFTWComplexEngine

Form a two dimensional ComplexEngine of specified size with specified input and output buffers.

FFTWComplexEngine(int, double[], double[], int) - Constructor for class jfftw.FFTWComplexEngine

Form a one dimensional ComplexEngine of specified size with specified input and output buffers.

FFTWComplexEngine(int, int, int, int, boolean) - Constructor for class jfftw.FFTWComplexEngine

Form a three dimensional ComplexEngine of specified size The input and output buffers will be automatically created.

FFTWComplexEngine(int, int, int, boolean) - Constructor for class jfftw.FFTWComplexEngine

Form a two-dimensional ComplexEngine of specified size The input and output buffers will be automatically created.

FFTWComplexEngine(int, int, boolean) - Constructor for class jfftw.FFTWComplexEngine

Form a one-dimensional ComplexEngine of specified size The input and output buffers will be automatically created.

FFTWComplexToRealEngine - Class in jfftw

Class to for a (forward), Real to hermition complex FFT engine with a real input buffer and hermition complex output buffer.

FFTWComplexToRealEngine(int, int, int, double[], double[]) - Constructor for class jfftw.FFTWComplexToRealEngine

Form a three-dimensional ComplexToReal Engine specified input and output buffers.

FFTWComplexToRealEngine(int, int, double[], double[]) - Constructor for class jfftw.FFTWComplexToRealEngine

Form a two-dimensional ComplexToReal Engine specified input and output buffers.

FFTWComplexToRealEngine(int, double[], double[]) - Constructor for class jfftw.FFTWComplexToRealEngine

Form a one-dimensional ComplexToReal Engine specified input and output buffers.

FFTWComplexToRealEngine(int, int, int) - Constructor for class jfftw.FFTWComplexToRealEngine

Form a three-dimensional ComplexToReal Engine whithe input and and output baffer are aoutomatically created.

FFTWComplexToRealEngine(int, int) - Constructor for class jfftw.FFTWComplexToRealEngine

Form a two-dimensional ComplexToReal Engine whithe input and and output baffer are aoutomatically created.

FFTWComplexToRealEngine(int) - Constructor for class jfftw.FFTWComplexToRealEngine

Form a one-dimensional ComplexToReal Engine whithe input and and output baffer are aoutomatically created.

FFTWEngine - Class in jfftw

Class to implement a FFT Engine based on FFTW.

FFTWEngine() - Constructor for class jfftw.FFTWEngine

FFTWReal - Class in jfftw

Class to implement simple one-off Real to Complex and Complex to RealFourier transforms using fftw as a native library.

FFTWReal() - Constructor for class jfftw.FFTWReal

Default constructor, does nothing but load the sharable library.

FFTWReal(FFTW) - Constructor for class jfftw.FFTWReal

Constructor to form a FFTWReal from a any FFTW.

FFTWReal(boolean) - Constructor for class jfftw.FFTWReal

Constructor to optionally load system wisdom file if available.

FFTWReal(String) - Constructor for class jfftw.FFTWReal

Constructor to load specified wisdom file by name.

FFTWRealToComplexEngine - Class in jfftw

Class to for a (forward), Real to hermition complex FFT engine with a real input buffer and hermition complex output buffer.

FFTWRealToComplexEngine(int, int, int, double[], double[]) - Constructor for class jfftw.FFTWRealToComplexEngine

Form a three-dimensional RealToComplex Engine specified input and output buffers.

FFTWRealToComplexEngine(int, int, double[], double[]) - Constructor for class jfftw.FFTWRealToComplexEngine

Form a two-dimensional RealToComplex Engine specified input and output buffers.

FFTWRealToComplexEngine(int, double[], double[]) - Constructor for class jfftw.FFTWRealToComplexEngine

Form a one-dimensional RealToComplex Engine specified input and output buffers.

FFTWRealToComplexEngine(int, int, int) - Constructor for class jfftw.FFTWRealToComplexEngine

Form a three-dimensional RealToComplex Engine whithe input and and output baffer are aoutomatically created.

FFTWRealToComplexEngine(int, int) - Constructor for class jfftw.FFTWRealToComplexEngine

Form a two-dimensional RealToComplex Engine whithe input and and output baffer are aoutomatically created.

FFTWRealToComplexEngine(int) - Constructor for class jfftw.FFTWRealToComplexEngine

Form a one-dimensional RealToComplex Engine whithe input and and output baffer are aoutomatically created.

FORWARD - Static variable in class jfftw.FFTW

Flag for forward FFT

fourier() - Method in class jfftw.ComplexDataArray

Method to take in-place fft.

fourier() - Method in class jfftw.DataArray

Abstract method to form the un-shifted Fourier transform

FOURIER - Static variable in class jfftw.FFTW

Flag for Fourier space

fourier() - Method in class jfftw.RealDataArray

Method to take in-place fft.

from(Complex) - Method in class jfftw.Complex

Subtract the current Complex FROM specified value returning a new Complex

from(double, double) - Method in class jfftw.Complex

Subtract the current Complex FROM specified value retuning a new Complex

from(double) - Method in class jfftw.Complex

Subtract the current Complex from a scalar returning a new Complex

G

getComplex(double[], int) - Static method in class jfftw.ArrayUtil

Static method to get the ith Complex element from an interleaved array where real part is in 2*i and imaginary in 2*i + 1.

getComplex(double[], double[], int) - Static method in class jfftw.ArrayUtil

Static method to get the ith Complex element from a split array consisting of real and imaginary parts.

getComplex(double[][], int) - Static method in class jfftw.ArrayUtil

Static method to get the ith Complex element from a split array consisting of real and imaginary parts in a [2][] array

getComplex(int) - Method in class jfftw.ComplexDataArray

Method to get a Complex element in one-dimensional case.

getComplex(int) - Method in class jfftw.DataArray

Method to get the value of Complex element in one-dimensions case.

getComplex(int, int) - Method in class jfftw.DataArray

Method to get the value of a Complex element in two-dimensions.

getComplex(int, int, int) - Method in class jfftw.DataArray

Method to get the value of a Complex element in three-dimensions

getComplex(int) - Method in class jfftw.RealDataArray

Method to get a Complex in one-dimensional case.

getConversion() - Method in class jfftw.DataArray

Method to get the current Complex to double conversion flag.

getCurrentWidth() - Method in class jfftw.DataArray

Method to get the current width data width.

getDataBuffer() - Method in class jfftw.DataArray

Method to get the current internal dataBuffer as a double[].

getDepth() - Method in class jfftw.DataArray

Method to get the data depth (tertiary direction).

getDepth() - Method in class jfftw.FFTWEngine

Method to get the depth, for a one or two-dimensional beffer this will be 1.

getDouble(int) - Method in class jfftw.Complex

Method to get double, converted from current Complex as specified by the conversion flag.

getDouble(int) - Method in class jfftw.ComplexDataArray

Method to get the double value of the element on one-dimensions where the Complex real conversion is controlled by setConversion(), which defaults to Complex.MODULUS.

getDouble(int) - Method in class jfftw.DataArray

Method to get value of double element in one-dimension.

getDouble(int, int) - Method in class jfftw.DataArray

Method to get value of double element in two-dimensions.

getDouble(int, int, int) - Method in class jfftw.DataArray

Method to get value of double element in three-dimensions

getDouble(int) - Method in class jfftw.RealDataArray

Method to get value of element as a double.

getFFTW() - Method in class jfftw.ComplexDataArray

Method to get underlying FFTWComplex

getFFTW() - Method in class jfftw.DataArray

Method to return the underlying FFTW class.

getFFTW() - Method in class jfftw.RealDataArray

Method to get underlying FFTWReal

getHeight() - Method in class jfftw.DataArray

Method to get the data height (secondary direction).

getHeight() - Method in class jfftw.FFTWEngine

Method to get the height, for a one-dimensional buffer this will be 1.

getImag() - Method in class jfftw.Complex

Get the imag part

getInputBuffer() - Method in class jfftw.FFTWEngine

Method to get the input buffer

getInputComplex(int) - Method in class jfftw.FFTWComplexEngine

Method to get an input element as a Complex

getInputComplex(int) - Method in class jfftw.FFTWComplexToRealEngine

Method to get a specifed element if the input buffer

getInputComplex(int) - Method in class jfftw.FFTWEngine

Abstract method to get the specifed input element as a Complex.

getInputComplex(int, int) - Method in class jfftw.FFTWEngine

Method to get the spefied input elements as complex using two dimensional access.

getInputComplex(int, int, int) - Method in class jfftw.FFTWEngine

Method to get the spefied input elements as complex using three dimensional access.

getInputComplex(int) - Method in class jfftw.FFTWRealToComplexEngine

Method to get an element of the Real input buffer as a Complex

getInputReal(int) - Method in class jfftw.FFTWComplexEngine

getInputReal(int) - Method in class jfftw.FFTWComplexToRealEngine

getInputReal(int) - Method in class jfftw.FFTWEngine

Method to get an input element is a double Only implemeneted for Real data

getInputReal(int, int) - Method in class jfftw.FFTWEngine

Method to get an input element is a double using two-dimensional access

getInputReal(int, int, int) - Method in class jfftw.FFTWEngine

Method to get an input element is a double using three-dimensional access

getInputReal(int) - Method in class jfftw.FFTWRealToComplexEngine

Method to get an input element as a real

getInputWidth() - Method in class jfftw.FFTWEngine

Method to get the input array width.

getNormalisation() - Method in class jfftw.DataArray

Method to get the normalisation flag.

getOutputBuffer() - Method in class jfftw.FFTWEngine

Method to get the output buffer

getOutputComplex(int) - Method in class jfftw.FFTWComplexEngine

Method to get an output element as a Complex

getOutputComplex(int) - Method in class jfftw.FFTWComplexToRealEngine

getOutputComplex(int) - Method in class jfftw.FFTWEngine

Absract method to get the specifed output element as a Complex.

getOutputComplex(int, int) - Method in class jfftw.FFTWEngine

Method to get the spefied output element as a complex using two dimensional access.

getOutputComplex(int, int, int) - Method in class jfftw.FFTWEngine

Method to get the spefied output element as a complex using three dimensional access.

getOutputComplex(int) - Method in class jfftw.FFTWRealToComplexEngine

Method to get an element of the Complex output buffer as a Complex

getOutputReal(int) - Method in class jfftw.FFTWComplexToRealEngine

Method to get an element real output buffer

getOutputWidth() - Method in class jfftw.FFTWEngine

Method to get the output data width.

getPlanFlag() - Method in class jfftw.FFTW

Method to get the plan flag

getReal() - Method in class jfftw.Complex

Get the real part

getRealDataArray(int) - Method in class jfftw.DataArray

Get the current DataArray as a RealData array using the specified conversion flag.

getRealDataArray() - Method in class jfftw.DataArray

Get the current DataArray are a RealDataArray using the internal conversion flag

getSpace() - Method in class jfftw.DataArray

Method to get the current space description flag.

getType() - Method in class jfftw.DataArray

Method to get the type (actually the class name) as a String.

getVersion() - Method in class jfftw.FFTW

Method to get the version string

getWidth() - Method in class jfftw.DataArray

Method to get the data width (primary direction).

getWisdom() - Method in class jfftw.FFTW

Method to get the wisdom information as a String

H

height - Variable in class jfftw.DataArray

Height or secondary size of data array.

height - Variable in class jfftw.FFTWEngine

Height of the data

I

i - Variable in class jfftw.Complex

The imaginary part

IMAG - Static variable in class jfftw.Complex

Static to specify imaginary part of Complex number

inputBuffer - Variable in class jfftw.FFTWEngine

The input buffer of the Engine

inputWidth - Variable in class jfftw.FFTWEngine

Width of the input data

interleave(double[], double[]) - Static method in class jfftw.ArrayUtil

Static method to take two double arrays normally holding real and imaginary parts and interleave them to a single array.

interleave(double[][]) - Static method in class jfftw.ArrayUtil

Static method to take split array normally holding real and imaginary parts and interleave them to a single array.

isComplex() - Method in class jfftw.DataArray

Method to determine if the current data is Complex.

isNaN() - Method in class jfftw.Complex

Test of either components set to NaN

J

jfftw - package jfftw

jfftw.demo - package jfftw.demo

L

length() - Method in class jfftw.DataArray

Method to get the length of the internal double[] dataBuffer

loaded - Static variable in class jfftw.FFTW

Boolean to determine in the sharable library has been loaded successfully.

loadWisdom() - Method in class jfftw.FFTW

Boolean method to load system wisdom file

loadWisdom(String) - Method in class jfftw.FFTW

Boolean method to load wisdom file from specified file by name.

loadWisdomFromString(String) - Method in class jfftw.FFTW

Boolean method to load the wisdom froma local Java String

LOG_POWER - Static variable in class jfftw.Complex

Static to specify Log Power of a Complex

logPower() - Method in class jfftw.Complex

Get the log power, being defines at log(r*r + i*i + 1.0)

M

main(String[]) - Static method in class jfftw.demo.CheckerBoard

main(String[]) - Static method in class jfftw.demo.ComplexDemo

main(String[]) - Static method in class jfftw.demo.FFTWComplexDemo

main(String[]) - Static method in class jfftw.demo.FFTWComplexDemoSplit

main(String[]) - Static method in class jfftw.demo.OneDimensionDemo

main(String[]) - Static method in class jfftw.demo.SineWave

main(String[]) - Static method in class jfftw.demo.TwoDimensionDemo

makePlan() - Method in class jfftw.FFTWComplexEngine

Method to make the current plan

makePlan() - Method in class jfftw.FFTWComplexToRealEngine

makePlan() - Method in class jfftw.FFTWEngine

Method to make the current plan using the current defaults

makePlan() - Method in class jfftw.FFTWRealToComplexEngine

maxModSqr(double[]) - Static method in class jfftw.ArrayUtil

Method to get the modulus squared of the largest elements of an interleaved Complex array.

maxModSqr(double[], double[]) - Static method in class jfftw.ArrayUtil

Method to get the modulus squared of the largest elements of a split Complex array with real and imaginary parts held in separate arrays.

maxModSqr(double[][]) - Static method in class jfftw.ArrayUtil

Method to get the modulus squared of the largest elements of a split Complex array

maxModSqr() - Method in class jfftw.DataArray

Method to get the largest modulus square value in the DataBuffer This is valid for both real and complex data

minus(Complex) - Method in class jfftw.Complex

Subtract a complex from the current retuning a new Complex

minus(double, double) - Method in class jfftw.Complex

Subtract a complex from the current returning a new Complex

minus(double) - Method in class jfftw.Complex

Subtract a real number from the current retuning a new Complex

modulus(double[], int) - Static method in class jfftw.ArrayUtil

Get the modulus of specified element of interleaved array

MODULUS - Static variable in class jfftw.Complex

Static to specify the modulus of a Complex number

modulus() - Method in class jfftw.Complex

Get the modulus of the Complex

MODULUS_SQUARED - Static variable in class jfftw.Complex

Static to specify the modulus squared of a Complex number

modulusSq() - Method in class jfftw.Complex

Get the modulus squared of the Complex

modulusSqr(double[], int) - Static method in class jfftw.ArrayUtil

Get the modulus square of specified element of interleaved array

mult(double[], int, double) - Static method in class jfftw.ArrayUtil

Multiply specified element of interleaved array by a double

mult(double[], int, double, double) - Static method in class jfftw.ArrayUtil

Multiply specified element of interleaved array by a complex specified as two doubles.

mult(double[], int, Complex) - Static method in class jfftw.ArrayUtil

Multiply specified element of interleaved array by a complex.

mult(double[], double) - Static method in class jfftw.ArrayUtil

Method to multiply an interleaved array by a double.

mult(double[][], double) - Static method in class jfftw.ArrayUtil

Method to multiply a split array by a double.

mult(double[], double, double) - Static method in class jfftw.ArrayUtil

Method to multiply a interleaved array by a complex specified as two doubles.

mult(double[], Complex) - Static method in class jfftw.ArrayUtil

Method to multiply an interleaved array by a complex.

mult(double[][], double, double) - Static method in class jfftw.ArrayUtil

Method to multiply a split array by a complex specified as two doubles.

mult(double[][], Complex) - Static method in class jfftw.ArrayUtil

Method to multiply a split array by a complex.

mult(double[], double[]) - Static method in class jfftw.ArrayUtil

Method to multiply two complex interleaved data arrays placing the result in the first.

mult(double[][], double[][]) - Static method in class jfftw.ArrayUtil

Method to multiply two split arrays putting the result in the first.

mult(double) - Method in class jfftw.Complex

Multiply the current by a scalar returning a new Complex

mult(double, double) - Method in class jfftw.Complex

Multiply the current by a specified Complex, returning a new Complex.

mult(Complex) - Method in class jfftw.Complex

Multiply the current by a specified Complex, returning a new Complex.

mult(Complex, Complex) - Static method in class jfftw.Complex

Static mult method with two parameters

mult(int, double) - Method in class jfftw.ComplexDataArray

Multiply an element by a double

mult(int, double, double) - Method in class jfftw.ComplexDataArray

Multiply an element by a Complex specified

mult(int, double) - Method in class jfftw.DataArray

Method to multiple an element by a double in one-dimensions.

mult(int, int, double) - Method in class jfftw.DataArray

Method to multiple an element by a double in two-dimensions.

mult(int, int, int, double) - Method in class jfftw.DataArray

Method to multiple an element by a double in three-dimensions.

mult(int, double, double) - Method in class jfftw.DataArray

Method to multiply an element by a Complex in one-dimension.

mult(int, Complex) - Method in class jfftw.DataArray

Method to multiply an element by a Complex in one-dimension.

mult(int, int, Complex) - Method in class jfftw.DataArray

Method to multiply an element by a Complex in two-dimension.

mult(int, int, int, Complex) - Method in class jfftw.DataArray

Method to multiply an element by a Complex in three-dimension.

mult(double) - Method in class jfftw.DataArray

Method to muliply the whole DataArray by a scalar

mult(double, double) - Method in class jfftw.DataArray

Method to multiply the whole DataArray by a complex specifed as two doubles.

mult(Complex) - Method in class jfftw.DataArray

Method to multiply the whole DataArray by a Complex.

mult(DataArray) - Method in class jfftw.DataArray

Method to multiply the current DataArray by a specified DataArray which must be of the same size, the result overwriting the contents of the current DataArray.

mult(int, double) - Method in class jfftw.RealDataArray

Multiply an element by a double, works in both real and fourier space.

mult(int, double, double) - Method in class jfftw.RealDataArray

Multiply an element by a Complex specified by two doubles in Fourier space.

multBy(double, double) - Method in class jfftw.Complex

Method to mult the current Complex by specified Complex

multBy(Complex) - Method in class jfftw.Complex

Method to mult the current Complex by specified Complex

multBy(double) - Method in class jfftw.Complex

Method to mult the current Complex by specified real

multConj(Complex) - Method in class jfftw.Complex

Multiply the current by the conjugate of the specified Complex retuning a new Complex

multConjugate(double[], double[]) - Static method in class jfftw.ArrayUtil

Method to multiply a interleaves complex arrays with the complex conjugate of an interleaved array, placing the result in the first.

multConjugate(double[][], double[][]) - Static method in class jfftw.ArrayUtil

Method to multiply first array by complex conjugate of the second.

multConjugate(DataArray) - Method in class jfftw.DataArray

Method to multiply the current DataArray by the Complex Conjugate of specified DataArray which must be of the same size the result overwriting the contents of the current DataArray.

N

normaliseDB() - Method in class jfftw.DataArray

Protected method to normalise the data buffer

O

oneDimensional(double[], double[], int) - Method in class jfftw.FFTWComplex

Method to take one-dimensional Complex FFT with the data supplied in a one-dimensional interleaved double array.

oneDimensional(double[], int, boolean) - Method in class jfftw.FFTWComplex

Method to take one-dimensional Complex FFT with the data supplied in a one-dimensional interleaved double array.

oneDimensional(double[][], double[][], int) - Method in class jfftw.FFTWComplex

Method to take a Complex one-dimensional FFT with the real and imaging data split format in a two-dimensional array of size [2][length] with the the i th component with real in the [0][i] element and the imaginary element in the [1][i] element.

oneDimensional(double[][], int, boolean) - Method in class jfftw.FFTWComplex

Method to take a Complex one-dimensional FFT with the real and imaging data split format in a two-dimensional array of size [2][length] with the the i th component with real in the [0][i] element and the imaginary element in the [1][i] element.

oneDimensionalBackward(double[], double[]) - Method in class jfftw.FFTWReal

Method to take a one dimensional Backward FFT of a complex hermition array to give Real output.

oneDimensionalBackward(double[]) - Method in class jfftw.FFTWReal

Method to take a one dimensional Backward FFT of a complex hermition array to give Real output.

oneDimensionalForward(double[], double[]) - Method in class jfftw.FFTWReal

Method to take a one dimensional Forward FFT of a real data array of n elements with output to specifed array.

oneDimensionalForward(double[]) - Method in class jfftw.FFTWReal

Method to take a one dimensional Forward FFT of a real data array of n elements with output to specifed array.

OneDimensionDemo - Class in jfftw.demo

Simple test program to form sin function in ComplexDataArray, take it FFT twice and compare with the original.

OneDimensionDemo() - Constructor for class jfftw.demo.OneDimensionDemo

outputBuffer - Variable in class jfftw.FFTWEngine

The output buffer of the Engine

outputWidth - Variable in class jfftw.FFTWEngine

Width of the output data

over(double) - Method in class jfftw.Complex

Divide the current Complex by a scalar returning a new Complex

over(double, double) - Method in class jfftw.Complex

Divide the current by specified Complex returning new Complex

over(Complex) - Method in class jfftw.Complex

Divide the current by specified Complex returning new Complex

P

PATIENT - Static variable in class jfftw.FFTW

Flag for patient plan search (medium slow)

PHASE - Static variable in class jfftw.Complex

Static to specify the phase of a Complex number

phase() - Method in class jfftw.Complex

Get the phase from atan2(i,r) method.

plan - Variable in class jfftw.FFTWEngine

Plan id

planFlag - Variable in class jfftw.FFTW

Integer to set to the current plan in use by the package.

plus(Complex) - Method in class jfftw.Complex

Add a complex to the current returning a new Complex.

plus(double, double) - Method in class jfftw.Complex

Add a complex to the current returning a new Complex

plus(double) - Method in class jfftw.Complex

Add a real number to the current returning a new Complex.

power(double[]) - Static method in class jfftw.ArrayUtil

Method to get power (sum of modulus squared) in an Complex interleaved array.

power(double[], double[]) - Method in class jfftw.ArrayUtil

Method to get power (sum of modulus squared) in an Complex split array held in real and imaginary arrays.

power(double[][]) - Method in class jfftw.ArrayUtil

Method to get power (sum of modulus squared) in an Complex split array.

power() - Method in class jfftw.DataArray

Method to get the total power in the DataSet being the sum of the modulus squared of all the elements

powerSpectrum(boolean) - Method in class jfftw.DataArray

Method to get the PowerSpectrum as a RealDataArray In data is in real space, then it is automatically Fourier transformed using centreFourier.

R

r - Variable in class jfftw.Complex

The real part

readWisdom(BufferedReader) - Static method in class jfftw.FFTW

Static method to read a Wisdom file into a String from a BufferedReader

readWisdom(File) - Static method in class jfftw.FFTW

Static method to read a Wisdom file into a String from a File

REAL - Static variable in class jfftw.Complex

Static to specify real part of Complex number

REAL - Static variable in class jfftw.FFTW

Flag for Real space

RealDataArray - Class in jfftw

Class to handle Real Data arrays in either Real or Fourier space.

RealDataArray(int, int, int) - Constructor for class jfftw.RealDataArray

Constructor to form a three-dimensional RealDataArray in real space.

RealDataArray(int, int) - Constructor for class jfftw.RealDataArray

Constructor to form a two-dimensional RealDataArray, in real space.

RealDataArray(int) - Constructor for class jfftw.RealDataArray

Constructor to form a one-dimensional RealDataArray, in real space.

RealDataArray(RealDataArray) - Constructor for class jfftw.RealDataArray

Form a RealDataArray with all parameters taken from the specified RealDataArray.

RealDataArray(int, int, int, double[]) - Constructor for class jfftw.RealDataArray

Forms a general RealDataArray taking its data from the a supplied double[] assumed to be in the correct (row) order.

RealDataArray(BufferedImage, int) - Constructor for class jfftw.RealDataArray

Constructor to form the a two-dimensional RealDataArray from a band of a Java BufferedImage.

S

scale(double) - Method in class jfftw.Complex

Form a scaled Complex from the current Complex with specified modulus, while retaining phase.

set(double, double) - Method in class jfftw.Complex

Method reset Complex value

set(Complex) - Method in class jfftw.Complex

Method to reset the Complex value

setComplex(double[], int, Complex) - Static method in class jfftw.ArrayUtil

Static to set the ith component of a interleaved complex array with a Complex.

setComplex(double[], int, double, double) - Static method in class jfftw.ArrayUtil

Static to set the ith component of a interleaved complex array with a two doubles

setComplex(double[], double[], int, Complex) - Static method in class jfftw.ArrayUtil

Static to set the ith component of split array array with a Complex.

setComplex(double[], double[], int, double, double) - Static method in class jfftw.ArrayUtil

Static to set the ith component of split array array with two doubles

setComplex(double[][], int, Complex) - Static method in class jfftw.ArrayUtil

Static to set the ith component of split array array with a Complex.

setComplex(double[][], int, double, double) - Static method in class jfftw.ArrayUtil

Static to set the ith component of split array array with a Complex.

setComplex(int, double, double) - Method in class jfftw.ComplexDataArray

Method to set a Complex point in one-dimension with two doubles.

setComplex(int, double, double) - Method in class jfftw.DataArray

Method to set an element with a complex specified as two doubles in one-dimension.

setComplex(int, Complex) - Method in class jfftw.DataArray

Method to set an element with a Complex in one dimensions.

setComplex(int, int, double, double) - Method in class jfftw.DataArray

Method to set an element with a complex in two-dimensions

setComplex(int, int, Complex) - Method in class jfftw.DataArray

Method to set an element with a Complex in two-dimensions.

setComplex(int, int, int, double, double) - Method in class jfftw.DataArray

Method to set an element with a Complex point in three-dimension.

setComplex(int, int, int, Complex) - Method in class jfftw.DataArray

Method to set an element with a Complex in three-dimensions.

setComplex(int, double, double) - Method in class jfftw.RealDataArray

Method to set a Complex point in one-dimension with two doubles.

setConversion(int) - Method in class jfftw.DataArray

Method to set default conversion from Complex to double.

setDataBuffer(double[]) - Method in class jfftw.DataArray

Method to set the internal dataBuffer to specified double[] array.

setDimensions(int, int, int) - Method in class jfftw.DataArray

Method to set the sizes, not normally called directly since there is no interval sanity checking.

setDimensions(int, int, int, int) - Method in class jfftw.FFTWEngine

Method to set the dimensions.

setDouble(int, double) - Method in class jfftw.ComplexDataArray

Method to set the Real part of an element with a double, the imaginary part is not modified.

setDouble(int, double) - Method in class jfftw.DataArray

Method to set element with a double in one-dimension.

setDouble(int, int, double) - Method in class jfftw.DataArray

Method to set element with a double in two-dimensions.

setDouble(int, int, int, double) - Method in class jfftw.DataArray

Method to set element with a double in three-dimensions.

setDouble(int, double) - Method in class jfftw.RealDataArray

Method to set a double point in one-dimensions.

setErrorStream(PrintStream) - Method in class jfftw.FFTW

Method to reset the default errorStream for package.

setExpi(double) - Method in class jfftw.Complex

Method to set Complex value to expi(theta)

setFormatString(String) - Method in class jfftw.Complex

Change the default format, by default set to "%g"

setImag(double) - Method in class jfftw.Complex

Set the imaginary part, real part unchanged

setInputBuffer(double[]) - Method in class jfftw.FFTWEngine

Method to set the input buffer to specifed array

setInputBuffer(int) - Method in class jfftw.FFTWEngine

Method set the input buffer to new double[] array of specified length.

setInputComplex(int, double, double) - Method in class jfftw.FFTWComplexEngine

Method to set the specifed element of the input complex with two doubles.

setInputComplex(int, double, double) - Method in class jfftw.FFTWComplexToRealEngine

Method to set a complex elemment in the input buffer

setInputComplex(int, double, double) - Method in class jfftw.FFTWEngine

Abstact method to set an input complex element with two doubles.

setInputComplex(int, Complex) - Method in class jfftw.FFTWEngine

Method to set an input input complex element with a complex

setInputComplex(int, int, Complex) - Method in class jfftw.FFTWEngine

Method to set an input input complex element with a complex using two-diemnsional access

setInputComplex(int, int, int, Complex) - Method in class jfftw.FFTWEngine

Method to set an input input complex element with a complex ueing three-diemnsional access

setInputComplex(int, double, double) - Method in class jfftw.FFTWRealToComplexEngine

Method to set an input element with a Complex, but since the input is real only a warning message is generated

setInputReal(int, double) - Method in class jfftw.FFTWComplexEngine

Method to set a specifeid element od the complex input array with real, it will set the real part to specifed value and the inaginary to zero.

setInputReal(int, double) - Method in class jfftw.FFTWComplexToRealEngine

Method to set the an input buffer element with a double

setInputReal(int, double) - Method in class jfftw.FFTWEngine

Abstarct to set an input element with a single real

setInputReal(int, int, double) - Method in class jfftw.FFTWEngine

Method to set an inout element with a real using two-diemnsional access

setInputReal(int, int, int, double) - Method in class jfftw.FFTWEngine

Method to set an input element with a real using three-diemnsional access

setInputReal(int, double) - Method in class jfftw.FFTWRealToComplexEngine

Method to set the an input buffer element with a double

setInvalid() - Method in class jfftw.Complex

Method to set the current Complex to be invalid, with both real and imaginary set to NaN

setNormalisation(boolean) - Method in class jfftw.DataArray

Method to control auto normalisation on inverse flag, which is by default set to true.

setOutputBuffer(double[]) - Method in class jfftw.FFTWEngine

Method to set the output buffer to specifed array.

setOutputBuffer(int) - Method in class jfftw.FFTWEngine

Method set the output buffer to new double[] array of specified length Note the is no sanity checkinng.

setOutputComplex(int, double, double) - Method in class jfftw.FFTWComplexEngine

Method to set the specifed element of the output complex with two doubles.

setOutputComplex(int, double, double) - Method in class jfftw.FFTWComplexToRealEngine

setOutputComplex(int, double, double) - Method in class jfftw.FFTWEngine

Abstact method to set an output complex element with two doubles.

setOutputComplex(int, Complex) - Method in class jfftw.FFTWEngine

Method to set an output complex element with a complex

setOutputComplex(int, int, Complex) - Method in class jfftw.FFTWEngine

Method to set an output complex element with a complex ueing two-diemnsional access

setOutputComplex(int, int, int, Complex) - Method in class jfftw.FFTWEngine

Method to set an output complex element with a complex ueing three-diemnsional access

setOutputComplex(int, double, double) - Method in class jfftw.FFTWRealToComplexEngine

Methed to set the an element in the outpout Complex array with two doubles.

setOutputReal(int, double) - Method in class jfftw.FFTWComplexEngine

Method to set a specifeid elemment of the complex output array with real, it will set the real part to specifed value and the inaginary to zero.

setOutputReal(int, double) - Method in class jfftw.FFTWComplexToRealEngine

Method to set the an element in the output Real array with a double.

setPlanFlag(int) - Method in class jfftw.FFTW

Method to set the plan flag, default is ESTIMATE

setPolar(double, double) - Method in class jfftw.Complex

Method to set the Complex value with polar parameters

setRandomPhase(double) - Method in class jfftw.Complex

Method to set a Complex to a specified modulus, but the phase set randomly between 0 to 2pi

setReal(double) - Method in class jfftw.Complex

Set the real part, imaginary part unchanged

setSign(int) - Method in class jfftw.FFTWComplexEngine

Method to set the sign to FORWARD of BACKWARD (this is only needed for Complex Engine.

setSpace(int) - Method in class jfftw.DataArray

Method to set the space.

setSystemWisdom(String) - Method in class jfftw.FFTW

Method to reset the system wisdom file location.

sign - Variable in class jfftw.FFTWComplexEngine

SineWave - Class in jfftw.demo

Test program to take Complex FT of a one-dimensional sin wave with one frequency in real and one in imaginary.

SineWave() - Constructor for class jfftw.demo.SineWave

sizeMatch(DataArray) - Method in class jfftw.DataArray

Method to test if specified DataArray is of the same size at the current DataArray

space - Variable in class jfftw.DataArray

Space flag initially defaults to FFTW.REAL

split(double[]) - Static method in class jfftw.ArrayUtil

Static method to split an interleaved array into two split array, returned as a double[2][] array with [0][i] and [1][i] holding the real / imaginary parts.

split(double[], double[]) - Static method in class jfftw.ArrayUtil

Static method to form a split array from a real and imaginary array.

T

threeDimensional(int, int, int, double[], double[], int) - Method in class jfftw.FFTWComplex

Method to take three-dimensional Complex FFT with the data supplied in a one-dimensional double array with real parts in even elements, and imaginary in the odd.

threeDimensional(int, int, int, double[], int, boolean) - Method in class jfftw.FFTWComplex

Method to take three-dimensional Complex FFT with the data supplied in a one-dimensional double array with real parts in even elements, and imaginary in the odd.

threeDimensional(int, int, int, double[][], double[][], int) - Method in class jfftw.FFTWComplex

Method to take a Complex three-dimensional FFT with the real and imaging data split format in a two-dimensional array of size [2][length] with the the i th component with real in the [0][i] element and the imaginary element in the [1][i] element.

threeDimensional(int, int, int, double[][], int, boolean) - Method in class jfftw.FFTWComplex

Method to take a Complex three-dimensional FFT with the real and imaging data split format in a two-dimensional array of size [2][length] with the the i th component with real in the [0][i] element and the imaginary element in the [1][i] element.

threeDimensionalBackward(int, int, int, double[], double[]) - Method in class jfftw.FFTWReal

Method to take the three dimensional backward DFT of a hermition complex DFT held in a double array with real/imag parts in even/odd elements, with the i,j Complex components in : *

threeDimensionalBackward(int, int, int, double[]) - Method in class jfftw.FFTWReal

Method to take the three dimensional backward DFT of a hermition complex DFT held in a double array with real/imag parts in even/odd elements, with the i,j Complex components in : *

threeDimensionalForward(int, int, int, double[], double[]) - Method in class jfftw.FFTWReal

Method to take the three dimensional Forward DFT of a real cube held in one dimensional double array.

threeDimensionalForward(int, int, int, double[]) - Method in class jfftw.FFTWReal

Method to take the three dimensional Forward DFT of a real cube held in one dimensional double array.

throwLoadException - Static variable in class jfftw.FFTW

Public static boolen to determine if an excepction in thrown if the native library is missing.

toString() - Method in class jfftw.Complex

Format the current Complex as a String

toString() - Method in class jfftw.DataArray

Default toString method to report information about DataArray.

toString() - Method in class jfftw.FFTWEngine

Method to get basic information as a String.

twoDimensional(int, int, double[], double[], int) - Method in class jfftw.FFTWComplex

Method to take two-dimensional Complex FFT with the data supplied in a one-dimensional double array with real parts in even elements, and imaginary in the odd.Element i,j is located at Real part 2*(j*width + i) Imag part 2*(j*width + i) + 1

twoDimensional(int, int, double[], int, boolean) - Method in class jfftw.FFTWComplex

Method to take two-dimensional Complex FFT with the data supplied in a one-dimensional double array with real parts in even elements, and imaginary in the odd Element i,j is located at Real part 2*(j*width + i) Imag part 2*(j*width + i) + 1

twoDimensional(int, int, double[][], double[][], int) - Method in class jfftw.FFTWComplex

Method to take a Complex two-dimensional FFT with the real and imaging data split format in a two-dimensional array of size [2][length] with the the i th component with real in the [0][i] element and the imaginary element in the [1][i] element.

twoDimensional(int, int, double[][], int, boolean) - Method in class jfftw.FFTWComplex

Method to take a Complex two-dimensional FFT with the real and imaging data split format in a two-dimensional array of size [2][length] with the the i th component with real in the [0][i] element and the imaginary element in the [1][i] element.

twoDimensionalBackward(int, int, double[], double[]) - Method in class jfftw.FFTWReal

Method to take the two dimensional backward DFT of a hermition complex DFT held in a double array with real/imag parts in even/odd elements, with the k,l Complex components held as follows:

twoDimensionalBackward(int, int, double[]) - Method in class jfftw.FFTWReal

Method to take the two dimensional backward DFT of a hermition complex DFT held in a double array with real/imag parts in even/odd elements, with the k,l Complex components held as follows:

twoDimensionalForward(int, int, double[], double[]) - Method in class jfftw.FFTWReal

Method to take the two-dimensional Forward FFT of a real data held in one dimensional double array.

twoDimensionalForward(int, int, double[]) - Method in class jfftw.FFTWReal

Method to take the two-dimensional Forward FFT of a real data held in one dimensional double array.

TwoDimensionDemo - Class in jfftw.demo

Simple test program for two dimensional Complex FFts.

TwoDimensionDemo() - Constructor for class jfftw.demo.TwoDimensionDemo

U

under(double) - Method in class jfftw.Complex

Divide the specified scalar BY the current Complex returning a new Complex

under(Complex) - Method in class jfftw.Complex

Divide the specified Complex BY the current Complex

unity() - Method in class jfftw.Complex

Form a unit modulus version current Complex retaining the phase

update() - Method in class jfftw.FFTWEngine

Method perform the currebtly specifed fft.

V

version - Static variable in class jfftw.FFTW

Version flag

W

width - Variable in class jfftw.DataArray

Width or primary size of the data array.

writeWisdom(String, File) - Static method in class jfftw.FFTW

Static method to write wisdom String to a file

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