Package org.web3d.util

Class MathUtils

java.lang.Object

org.web3d.util.MathUtils

public abstract class MathUtils
extends Object

Utility class for miscellaneous calculations, primarily used in pre-processing images.

Version:

$Revision: 1.2 $

Author:

Rex Melton

Constructor Summary

Constructors

Constructor	Description
MathUtils()

Method Summary

Modifier and Type	Method	Description
static int	computeLog(int value)	Compute the n where 2^n = value.
static int	nearestPowerTwo(int val, boolean imageScaleUp)	Determine the nearest power of two value for a given argument.

Methods inherited from class java.lang.Object

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

Constructor Details

MathUtils

public MathUtils()

Method Details

nearestPowerTwo

public static int nearestPowerTwo(int val,
 boolean imageScaleUp)

Determine the nearest power of two value for a given argument. This function uses the formal ln(x) / ln(2) = log2(x)

Parameters:

val -

imageScaleUp -

Returns:

The power-of-two-ized value

computeLog

public static int computeLog(int value)

Compute the n where 2^n = value.

Parameters:

value - The value to compute.

Returns: