Package gov.nih.mipav.model.algorithms

Class AlgorithmEllipseToCircle

java.lang.Object

java.lang.Thread

gov.nih.mipav.model.algorithms.AlgorithmBase

gov.nih.mipav.model.algorithms.AlgorithmEllipseToCircle

All Implemented Interfaces:

java.awt.event.ActionListener, java.awt.event.WindowListener, java.lang.Runnable, java.util.EventListener

public class AlgorithmEllipseToCircle
extends AlgorithmBase

This program performs the conformal mapping of an ellipse to a circle. Consider the original ellipse as having a tilt theta with the x axis. Then the conformal mapping is done in 3 steps. 1.) Translate the circle from the center of the square image to the origin, rotate around the circle by -theta and convert to a unit disc by dividing the distance from the center by the radius. 2.) Map from the unit circle to a standard ellipse on the x axis with foci at +- 1 and with the same major axis/minor axis ratio as the original ellipse. 3.) Map from the standard ellipse to the original ellipse by rotating, scaling, and translating.

References: 1.) Advanced Calculus For Applications Second Edition by F. B. Hildebrand, Section 10.4 Analytic Functions of a Complex Variable pages 550-554 and Section 11.4 Conformal Mapping pages 628-632, Prentice-Hall, Inc., 1976. 2.) "On Conformal Representations of the Interior of an Ellipse" by Stanislawa Kanas and Toshiyuki Sugawa, Annales Academiae Scientiarum Fennicae Mathematica, Volume 31, 2006, pp. 329-348. 3.) http://mathworld.com/InverseSine.html

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class gov.nih.mipav.model.algorithms.AlgorithmBase

destFlag, destImage, image25D, mask, maxProgressValue, minProgressValue, multiThreadingEnabled, nthreads, progress, progressModulus, progressStep, runningInSeparateThread, separable, srcImage, threadStopped

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
AlgorithmEllipseToCircle()	AlgorithmEllipseToCircle - default constructor.
AlgorithmEllipseToCircle(ModelImage destImg, ModelImage srcImg)	AlgorithmEllipseToCircle.

Method Summary

Modifier and Type	Method	Description
private double	cosh(double x)
void	finalize()	finalize -
void	runAlgorithm()	Starts the program.
private void	selfTest()
private double	sinh(double x)
private void	sqrtc(double zinr, double zini, double[] zsqr, double[] zsqi)
private double	zabs(double zr, double zi)	zabs computes the absolute value or magnitude of a double precision complex variable zr + j*zi.
private void	zlog(double ar, double ai, double[] br, double[] bi, int[] ierr)	complex logarithm b = clog(a).
private void	zmlt(double ar, double ai, double br, double bi, double[] cr, double[] ci)	complex multiply c = a * b.
private void	zsin(double inr, double ini, double[] outr, double[] outi)

Methods inherited from class gov.nih.mipav.model.algorithms.AlgorithmBase

actionPerformed, addListener, addProgressChangeListener, calculateImageSize, calculatePrincipleAxis, computeElapsedTime, computeElapsedTime, convertIntoFloat, delinkProgressToAlgorithm, delinkProgressToAlgorithmMulti, displayError, errorCleanUp, fireProgressStateChanged, fireProgressStateChanged, fireProgressStateChanged, fireProgressStateChanged, fireProgressStateChanged, generateProgressValues, getDestImage, getElapsedTime, getMask, getMaxProgressValue, getMinProgressValue, getNumberOfThreads, getProgress, getProgressChangeListener, getProgressChangeListeners, getProgressModulus, getProgressStep, getProgressValues, getSrcImage, isCompleted, isImage25D, isMultiThreadingEnabled, isRunningInSeparateThread, isThreadStopped, linkProgressToAlgorithm, linkProgressToAlgorithm, makeProgress, notifyListeners, removeListener, removeProgressChangeListener, run, setCompleted, setImage25D, setMask, setMaxProgressValue, setMinProgressValue, setMultiThreadingEnabled, setNumberOfThreads, setProgress, setProgressModulus, setProgressStep, setProgressValues, setProgressValues, setRunningInSeparateThread, setSrcImage, setStartTime, setThreadStopped, startMethod, windowActivated, windowClosed, windowClosing, windowDeactivated, windowDeiconified, windowIconified, windowOpened

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

AlgorithmEllipseToCircle

public AlgorithmEllipseToCircle()

AlgorithmEllipseToCircle - default constructor.

AlgorithmEllipseToCircle

public AlgorithmEllipseToCircle(ModelImage destImg,
                                ModelImage srcImg)

AlgorithmEllipseToCircle.

Parameters:

destImg - DOCUMENT ME!

srcImg - DOCUMENT ME!

Method Detail

finalize

public void finalize()

finalize -

Overrides:

finalize in class AlgorithmBase

runAlgorithm

public void runAlgorithm()

Starts the program.

Specified by:

runAlgorithm in class AlgorithmBase

zmlt

private void zmlt(double ar,
                  double ai,
                  double br,
                  double bi,
                  double[] cr,
                  double[] ci)

complex multiply c = a * b.

Parameters:

ar - double

ai - double

br - double

bi - double

cr - double[]

ci - double[]

sqrtc

private void sqrtc(double zinr,
                   double zini,
                   double[] zsqr,
                   double[] zsqi)

zabs

private double zabs(double zr,
                    double zi)

zabs computes the absolute value or magnitude of a double precision complex variable zr + j*zi.

Parameters:

zr - double

zi - double

Returns:

double

zlog

private void zlog(double ar,
                  double ai,
                  double[] br,
                  double[] bi,
                  int[] ierr)

complex logarithm b = clog(a).

Parameters:

ar - double

ai - double

br - double[]

bi - double[]

ierr - int[] ierr = 0, normal return ierr = 1, z = cmplx(0.0, 0.0)

zsin

private void zsin(double inr,
                  double ini,
                  double[] outr,
                  double[] outi)

cosh

private double cosh(double x)

sinh

private double sinh(double x)

selfTest

private void selfTest()