Package org.jbox2d.tests.math

Class SinCosTest

java.lang.Object

org.jbox2d.tests.math.SinCosTest

public class SinCosTest
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
static int	accuracyIterations
static int	COLUMN_PADDING
static float	leastPreciseTable
static float	mostPreciseTable
static int	NUM_DECIMALS
static int	numTables
static int	speedIterations
static int	speedTrials
private static SinCosTable[]	tables

Constructor Summary

Constructors

Constructor	Description
SinCosTest()

Method Summary

Modifier and Type	Method	Description
private static double	accuracyTest(SinCosTable table, int iterations)
static void	constructTables()	constructs the tables from the static parameters
static double[][]	doAccuracyTest(boolean print)	accuracy test from the static parameters, the tables array needs to be constructed as well, returns double[tables][0-3 (no lerp, lerp, then the difference)]
static double[][]	doSpeedTest(boolean print)	speed test from the static parameters the tables array needs to be constructed as well, returns double[tables][0-3 (no lerp, lerp, then the difference)]
private static java.lang.String	formatDecimal(double n, int decimals)
static void	main(java.lang.String[] args)
private static void	printTable(java.lang.String[] header, java.lang.String[] side, double[][] results)
private static java.lang.String	spaceString(java.lang.String str, int space)
private static long	speedTest(SinCosTable table, int numIterations, int numTrials)
private static long	speedTestMath(int numIterations, int numTrials)

Methods inherited from class java.lang.Object

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

Field Detail

COLUMN_PADDING

public static final int COLUMN_PADDING

See Also:

Constant Field Values

NUM_DECIMALS

public static final int NUM_DECIMALS

See Also:

Constant Field Values

numTables

public static int numTables

mostPreciseTable

public static float mostPreciseTable

leastPreciseTable

public static float leastPreciseTable

accuracyIterations

public static int accuracyIterations

speedTrials

public static int speedTrials

speedIterations

public static int speedIterations

tables

private static SinCosTable[] tables

Constructor Detail

SinCosTest

public SinCosTest()

Method Detail

main

public static void main(java.lang.String[] args)

Parameters:

args -

constructTables

public static final void constructTables()

constructs the tables from the static parameters

doAccuracyTest

public static final double[][] doAccuracyTest(boolean print)

accuracy test from the static parameters, the tables array needs to be constructed as well, returns double[tables][0-3 (no lerp, lerp, then the difference)]

Returns:

doSpeedTest

public static final double[][] doSpeedTest(boolean print)

speed test from the static parameters the tables array needs to be constructed as well, returns double[tables][0-3 (no lerp, lerp, then the difference)]

Returns:

accuracyTest

private static double accuracyTest(SinCosTable table,
                                   int iterations)

printTable

private static void printTable(java.lang.String[] header,
                               java.lang.String[] side,
                               double[][] results)

speedTest

private static long speedTest(SinCosTable table,
                              int numIterations,
                              int numTrials)

speedTestMath

private static long speedTestMath(int numIterations,
                                  int numTrials)

spaceString

private static java.lang.String spaceString(java.lang.String str,
                                            int space)

formatDecimal

private static java.lang.String formatDecimal(double n,
                                              int decimals)