Package org.pepsoft.util

Class PerlinNoise

java.lang.Object

org.pepsoft.util.PerlinNoise

All Implemented Interfaces:

Serializable, Cloneable

public final class PerlinNoise
extends Object
implements Serializable, Cloneable

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
PerlinNoise(long seed)

Method Summary

Modifier and Type	Method	Description
Object	clone()
static float	getLevelForPromillage(float promillage)
static float	getLevelForPromillage(int promillage)
float	getPerlinNoise(double x)	Generates one dimensional noise.
float	getPerlinNoise(double x, double y)	Generates two dimensional noise.
float	getPerlinNoise(double x, double y, double z)	Generates three dimensional noise.
long	getSeed()
void	setSeed(long seed)

Methods inherited from class java.lang.Object

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

Constructor Details

PerlinNoise

public PerlinNoise(long seed)

Method Details

getSeed

public long getSeed()

setSeed

public void setSeed(long seed)

getPerlinNoise

public float getPerlinNoise(double x)

Generates one dimensional noise. The input value is normalised to be between 0 (inclusive) and 256 (exclusive), so the input should be constrained to be between those values for best results (otherwise the pattern will start to repeat).

Parameters:

x - The point for which to determine the noise value.

Returns:

A noise value between -0.5 and 0.5.

getPerlinNoise

public float getPerlinNoise(double x,
 double y)

Generates two dimensional noise. The input values are normalised to be between 0 (inclusive) and 256 (exclusive), so the input should be constrained to be between those values for best results (otherwise the pattern will start to repeat).

Parameters:

x - The X coordinate of the point for which to determine the noise value.

y - The Y coordinate of the point for which to determine the noise value.

Returns:

A noise value between -0.5 and 0.5.

getPerlinNoise

public float getPerlinNoise(double x,
 double y,
 double z)

Generates three dimensional noise. The input values are normalised to be between 0 (inclusive) and 256 (exclusive), so the input should be constrained to be between those values for best results (otherwise the pattern will start to repeat).

Parameters:

x - The X coordinate of the point for which to determine the noise value.

y - The Y coordinate of the point for which to determine the noise value.

z - The Z coordinate of the point for which to determine the noise value.

Returns:

A noise value between -0.5 and 0.5.

clone

public Object clone()

Overrides:

clone in class Object

getLevelForPromillage

public static float getLevelForPromillage(int promillage)

getLevelForPromillage

public static float getLevelForPromillage(float promillage)