visad.browser
Class Convert

java.lang.Object
  visad.browser.Convert

public class Convert
extends Object

Utility methods for various conversions between primitive data types.

Field Summary

static int	PLACES Number of significant digits after the decimal point.
static int	ROUND_DOWN Mode where shortString rounds to the lower value.
static int	ROUND_NEAREST Mode where shortString rounds to the nearest value.
static int	ROUND_UP Mode where shortString rounds to the higher value.

Constructor Summary

Convert()

Method Summary

static int[]	bytesToInt(byte[] bytes) Converts an array of bytes to an array of ints.
static int[]	decodeRLE(int[] array) Decodes the given array of ints from a run-length encoding.
static int[]	encodeRLE(int[] array) Encodes the given array of ints using a run-length scheme.
static boolean	getBoolean(String s) Extracts a boolean from a string.
static double	getDouble(String s) Extracts a double from a string.
static float	getFloat(String s) Extracts a float from a string.
static int	getInt(String s) Extracts an integer from a string.
static byte[]	intToBytes(int[] ints) Converts an array of ints to an array of bytes.
static String	shortString(double val) Gets a reasonably short string representation of a double for use in a graphical user interface.
static String	shortString(double val, int mode) Gets a reasonably short string representation of a double for use in a graphical user interface.

Methods inherited from class java.lang.Object

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

Field Detail

PLACES

public static final int PLACES

Number of significant digits after the decimal point.

See Also:

Constant Field Values

ROUND_NEAREST

public static final int ROUND_NEAREST

Mode where shortString rounds to the nearest value.

See Also:

Constant Field Values

ROUND_DOWN

public static final int ROUND_DOWN

Mode where shortString rounds to the lower value.

See Also:

Constant Field Values

ROUND_UP

public static final int ROUND_UP

Mode where shortString rounds to the higher value.

See Also:

Constant Field Values

Constructor Detail

Convert

public Convert()

Method Detail

intToBytes

public static byte[] intToBytes(int[] ints)

Converts an array of ints to an array of bytes. Each integer is cut into four byte-size pieces, making the resulting byte array four times the length of the input int array.

Parameters:

ints - The array of ints to be converted to a byte array

Returns:

An array of bytes corresponding to the original int array.

bytesToInt

public static int[] bytesToInt(byte[] bytes)

Converts an array of bytes to an array of ints. Each group of four bytes form a single int, making the resulting int array one fourth the length of the input byte array. Note that trailing elements of the bytes array will be ignored.

Parameters:

bytes - The array of bytes to be converted to an int array

Returns:

An array of ints corresponding to the original byte array.

encodeRLE

public static int[] encodeRLE(int[] array)

Encodes the given array of ints using a run-length scheme.

Parameters:

array - The array of ints to RLE-encode

Returns:

An RLE-encoded array of ints.

decodeRLE

public static int[] decodeRLE(int[] array)

Decodes the given array of ints from a run-length encoding.

Parameters:

array - The RLE-encoded array of ints to decode

Returns:

A decoded array of ints.

getDouble

public static double getDouble(String s)

Extracts a double from a string.

getFloat

public static float getFloat(String s)

Extracts a float from a string.

getBoolean

public static boolean getBoolean(String s)

Extracts a boolean from a string.

getInt

public static int getInt(String s)

Extracts an integer from a string.

shortString

public static String shortString(double val)

Gets a reasonably short string representation of a double for use in a graphical user interface. The number will be rounded to the nearest integer.

shortString

public static String shortString(double val,
                                 int mode)

Gets a reasonably short string representation of a double for use in a graphical user interface. Mode indicates the method used to deal insignificant digits: ROUND_NEAREST, ROUND_UP or ROUND_DOWN.