Documentation of 'math.jwave.Transform' Java class
Transform
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math.jwave

Class Transform


  • public class Transform
extends java.lang.Object
    Base class for transforms like DiscreteFourierTransform, FastBasicTransform, and WaveletPacketTransform.

    • Constructor Summary

      Constructors 
      Constructor and Description
      Transform(BasicTransform transform)
      Constructor; needs some object like DiscreteFourierTransform, FastBasicTransform, WaveletPacketTransfom, ...
      Transform(BasicTransform transform, int iteration)
      Constructor; needs some object like DiscreteFourierTransform, FastBasicTransform, WaveletPacketTransfom, ...

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method and Description
      Complex[] forward(Complex[] arrTime)
      Performs the forward transform from time domain to frequency or Hilbert domain for a given array depending on the used transform algorithm by inheritance.
      double[] forward(double[] arrTime)
      Performs the forward transform of the specified BasicWave object.
      double[][] forward(double[][] matrixTime)
      Performs the 2-D forward transform of the specified BasicWave object.
      double[][][] forward(double[][][] spaceTime)
      Performs the 3-D forward transform of the specified BasicWave object.
      Complex[] reverse(Complex[] arrFreq)
      Performs the reverse transform from frequency or Hilbert domain to time domain for a given array depending on the used transform algorithm by inheritance.
      double[] reverse(double[] arrFreq)
      Performs the reverse transform of the specified BasicWave object.
      double[][] reverse(double[][] matrixFreq)
      Performs the 2-D reverse transform of the specified BasicWave object.
      double[][][] reverse(double[][][] spaceFreq)
      Performs the 3-D reverse transform of the specified BasicWave object.

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • Transform

        public Transform(BasicTransform transform)
        Constructor; needs some object like DiscreteFourierTransform, FastBasicTransform, WaveletPacketTransfom, ...
        Parameters:
        transform - Transform object

      • Transform

        public Transform(BasicTransform transform,
                 int iteration)
        Constructor; needs some object like DiscreteFourierTransform, FastBasicTransform, WaveletPacketTransfom, ... It take also a number of iteration for decomposition

    • Method Detail

      • forward

        public double[] forward(double[] arrTime)
        Performs the forward transform of the specified BasicWave object.
        Parameters:
        arrTime - coefficients of time domain
        Returns:
        coefficients of frequency or Hilbert domain

      • reverse

        public double[] reverse(double[] arrFreq)
        Performs the reverse transform of the specified BasicWave object.
        Parameters:
        arrFreq - coefficients of frequency or Hilbert domain
        Returns:
        coefficients of time domain

      • forward

        public Complex[] forward(Complex[] arrTime)
        Performs the forward transform from time domain to frequency or Hilbert domain for a given array depending on the used transform algorithm by inheritance.
        Parameters:
        arrTime - coefficients of 1-D time domain
        Returns:
        coefficients of 1-D frequency or Hilbert domain

      • reverse

        public Complex[] reverse(Complex[] arrFreq)
        Performs the reverse transform from frequency or Hilbert domain to time domain for a given array depending on the used transform algorithm by inheritance.
        Parameters:
        arrFreq - coefficients of 1-D frequency or Hilbert domain
        Returns:
        coefficients of 1-D time domain

      • forward

        public double[][] forward(double[][] matrixTime)
        Performs the 2-D forward transform of the specified BasicWave object.
        Parameters:
        matrixTime - coefficients of 2-D time domain
        Returns:
        coefficients of 2-D frequency or Hilbert domain

      • reverse

        public double[][] reverse(double[][] matrixFreq)
        Performs the 2-D reverse transform of the specified BasicWave object.
        Parameters:
        matrixFreq - coefficients of 2-D frequency or Hilbert domain
        Returns:
        coefficients of 2-D time domain

      • forward

        public double[][][] forward(double[][][] spaceTime)
        Performs the 3-D forward transform of the specified BasicWave object.
        Parameters:
        matrixTime - coefficients of 2-D time domain
        Returns:
        coefficients of 2-D frequency or Hilbert domain

      • reverse

        public double[][][] reverse(double[][][] spaceFreq)
        Performs the 3-D reverse transform of the specified BasicWave object.
        Parameters:
        matrixFreq - coefficients of 2-D frequency or Hilbert domain
        Returns:
        coefficients of 2-D time domain
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