unal.od.jdiffraction.cpu

Class FloatAngularSpectrum

java.lang.Object

unal.od.jdiffraction.cpu.FloatPropagator

unal.od.jdiffraction.cpu.FloatAngularSpectrum

public class FloatAngularSpectrum
extends FloatPropagator

Computes wave diffraction through angular spectrum method with single precision.

Since:

JDiffraction 1.0

Author:

Pablo Piedrahita-Quintero (jppiedrahitaq@unal.edu.co), Carlos Trujillo (catrujila@unal.edu.co), Jorge Garcia-Sucerquia (jigarcia@unal.edu.co)

Constructor Summary

Constructors

Constructor and Description
FloatAngularSpectrum(int M, int N, float lambda, float z, float dx, float dy) Creates a new instance of FloatAngularSpectrum.

Method Summary

Modifier and Type	Method and Description
void	diffract(float[][] field) Performs numerical diffraction of the complex data in field, leaving the result in field.
float	getDx()
float	getDy()
float	getLambda()
int	getM()
int	getN()
float	getZ()

Methods inherited from class java.lang.Object

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

Constructor Detail

FloatAngularSpectrum

public FloatAngularSpectrum(int M,
                            int N,
                            float lambda,
                            float z,
                            float dx,
                            float dy)

Creates a new instance of FloatAngularSpectrum. Also performs kernel calculations.

Parameters:

M - Number of data points on x direction.

N - Number of data points on y direction.

lambda - Wavelength.

z - Distance.

dx - Sampling pitch on x direction.

dy - Sampling pitch on y direction.

Method Detail

diffract

public void diffract(float[][] field)

Description copied from class: FloatPropagator

Performs numerical diffraction of the complex data in field, leaving the result in field. The physical layout of the complex data must be the same as in JTransforms:

field[i][2 * j] = Re[i][j], field[i][2 * j + 1] = Im[i][j]; 0 <= i < M, 0 <= j < N

Specified by:

diffract in class FloatPropagator

Parameters:

field - The complex field to diffract.

getM

public int getM()

getN

public int getN()

getZ

public float getZ()

getLambda

public float getLambda()

getDx

public float getDx()

getDy

public float getDy()