Package org.web3d.util

Class ArrayUtils

java.lang.Object

org.web3d.util.ArrayUtils

public class ArrayUtils
extends Object

Utility class for doing array manipulation.

The main use of this class is to provide a central location that converts 2D arrays to flat structures and back again. All methods assume that you have passed a target array in of at least the minimum length. If you don't an array index exception will be generated.

Version:

$Revision: 1.4 $

Author:

Justin Couch

Constructor Summary

Constructors

Constructor	Description
ArrayUtils()

Method Summary

Modifier and Type	Method	Description
static void	flatten2(double[][] in, int size, double[] out)	Flatten a 2D array with 2 items in the second dimension into a 1D array.
static void	flatten2(float[][] in, int size, float[] out)	Flatten a 2D array with 2 items in the second dimension into a 1D array.
static void	flatten3(double[][] in, int size, double[] out)	Flatten a 2D array with 3 items in the second dimension into a 1D array.
static void	flatten3(float[][] in, int size, float[] out)	Flatten a 2D array with 3 items in the second dimension into a 1D array.
static void	flatten4(float[][] in, int size, float[] out)	Flatten a 2D array with 4 items in the second dimension into a 1D array.
static void	flattenN(double[][] in, int size, int width, double[] out)	Flatten a 2D array with n items in the second dimension into a 1D array.
static void	flattenN(float[][] in, int size, int width, float[] out)	Flatten a 2D array with n items in the second dimension into a 1D array.
static void	raise2(double[] in, int size, double[][] out)	Raise a 1D array into a 2D array with 2 items in the second dimension.
static void	raise2(float[] in, int size, float[][] out)	Raise a 1D array into a 2D array with 2 items in the second dimension.
static void	raise3(double[] in, int size, double[][] out)	Raise a 1D array into a 2D array with 3 items in the second dimension.
static void	raise3(float[] in, int size, float[][] out)	Raise a 1D array into a 2D array with 3 items in the second dimension.
static void	raise4(double[] in, int size, double[][] out)	Raise a 1D array into a 2D array with 4 items in the second dimension.
static void	raise4(float[] in, int size, float[][] out)	Raise a 1D array into a 2D array with 4 items in the second dimension.
static void	raiseN(double[] in, int size, int width, double[][] out)	Raise a 1D array into a 2D array with N items in the second dimension.
static void	raiseN(float[] in, int size, int width, float[][] out)	Raise a 1D array into a 2D array with N items in the second dimension.

Methods inherited from class java.lang.Object

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

Constructor Details

ArrayUtils

public ArrayUtils()

Method Details

flatten2

public static void flatten2(float[][] in,
 int size,
 float[] out)

Flatten a 2D array with 2 items in the second dimension into a 1D array.

Parameters:

in - The array to be flattened

size - The number of items to copy from the in array

out - The output array to write the values to

flatten3

public static void flatten3(float[][] in,
 int size,
 float[] out)

Flatten a 2D array with 3 items in the second dimension into a 1D array.

Parameters:

in - The array to be flattened

size - The number of items to copy from the in array

out - The output array to write the values to

flatten4

public static void flatten4(float[][] in,
 int size,
 float[] out)

Flatten a 2D array with 4 items in the second dimension into a 1D array.

Parameters:

in - The array to be flattened

size - The number of items to copy from the in array

out - The output array to write the values to

flattenN

public static void flattenN(float[][] in,
 int size,
 int width,
 float[] out)

Flatten a 2D array with n items in the second dimension into a 1D array. Generic but slower then the static sized conterparts.

Parameters:

in - The array to be flattened

size - The number of items to copy from the in array

width - The number of items in the second dimension

out - The output array to write the values to

flatten2

public static void flatten2(double[][] in,
 int size,
 double[] out)

Flatten a 2D array with 2 items in the second dimension into a 1D array.

Parameters:

in - The array to be flattened

size - The number of items to copy from the in array

out - The output array to write the values to

flatten3

public static void flatten3(double[][] in,
 int size,
 double[] out)

Flatten a 2D array with 3 items in the second dimension into a 1D array.

Parameters:

in - The array to be flattened

size - The number of items to copy from the in array

out - The output array to write the values to

flattenN

public static void flattenN(double[][] in,
 int size,
 int width,
 double[] out)

Flatten a 2D array with n items in the second dimension into a 1D array.

Parameters:

in - The array to be flattened

size - The number of items to copy from the in array

width - The number of items in the second dimension

out - The output array to write the values to

raise2

public static void raise2(float[] in,
 int size,
 float[][] out)

Raise a 1D array into a 2D array with 2 items in the second dimension.

Parameters:

in - The array to be raised

size - The number of vectors to copy from the in array

out - The output array to write the values to

raise3

public static void raise3(float[] in,
 int size,
 float[][] out)

Raise a 1D array into a 2D array with 3 items in the second dimension.

Parameters:

in - The array to be raised

size - The number of vectors to copy from the in array

out - The output array to write the values to

raise4

public static void raise4(float[] in,
 int size,
 float[][] out)

Raise a 1D array into a 2D array with 4 items in the second dimension.

Parameters:

in - The array to be raised

size - The number of vectors to copy from the in array

out - The output array to write the values to

raiseN

public static void raiseN(float[] in,
 int size,
 int width,
 float[][] out)

Raise a 1D array into a 2D array with N items in the second dimension. Generic but slower then the static sized conterparts.

Parameters:

in - The array to be raised

size - The number of vectors to copy from the in array

width - The size of the vectors

out - The output array to write the values to

raise2

public static void raise2(double[] in,
 int size,
 double[][] out)

Raise a 1D array into a 2D array with 2 items in the second dimension.

Parameters:

in - The array to be raised

size - The number of vectors to copy from the in array

out - The output array to write the values to

raise3

public static void raise3(double[] in,
 int size,
 double[][] out)

Raise a 1D array into a 2D array with 3 items in the second dimension.

Parameters:

in - The array to be raised

size - The number of vectors to copy from the in array

out - The output array to write the values to

raise4

public static void raise4(double[] in,
 int size,
 double[][] out)

Raise a 1D array into a 2D array with 4 items in the second dimension.

Parameters:

in - The array to be raised

size - The number of vectors to copy from the in array

out - The output array to write the values to

raiseN

public static void raiseN(double[] in,
 int size,
 int width,
 double[][] out)

Raise a 1D array into a 2D array with N items in the second dimension. Generic but slower then the static sized conterparts.

Parameters:

in - The array to be raised

size - The number of vectors to copy from the in array

width - The size of the vectors

out - The output array to write the values to