Implements a multi-layer PerlinNoise, with one or more high-frequency noise functions added to a lower-frequency base noise function. More...

Public Member Functions
	StackedPerlinNoise2 ()
	Creates a StackedPerlinNoise2 object with no levels.
	StackedPerlinNoise2 (StackedPerlinNoise2 const copy)
	Creates an exact duplicate of the existing StackedPerlinNoise2 object, including the random seed.
	StackedPerlinNoise2 (double sx, double sy, int num_levels, double scale_factor, double amp_scale, int table_size)
	Creates num_levels nested PerlinNoise2 objects.
	StackedPerlinNoise2 (double sx, double sy)
	Creates num_levels nested PerlinNoise2 objects.
	StackedPerlinNoise2 (double sx, double sy, int num_levels, double scale_factor, double amp_scale)
	Creates num_levels nested PerlinNoise2 objects.
	StackedPerlinNoise2 (double sx, double sy, int num_levels, double scale_factor, double amp_scale, int table_size, unsigned long int seed)
	Creates num_levels nested PerlinNoise2 objects.
	StackedPerlinNoise2 (double sx, double sy, int num_levels, double scale_factor)
	Creates num_levels nested PerlinNoise2 objects.
	StackedPerlinNoise2 (double sx, double sy, int num_levels)
	Creates num_levels nested PerlinNoise2 objects.
	addLevel (PerlinNoise2 const level, double amp)
	Adds an arbitrary PerlinNoise2 object, and an associated amplitude, to the stack.
	addLevel (PerlinNoise2 const level)
	Adds an arbitrary PerlinNoise2 object, and an associated amplitude, to the stack.
	clear ()
	Removes all levels from the stack.
double	noise (double x, double y)
	Returns the noise function of the three inputs.
double	noise (VBase2D const value)
	Returns the noise function of the three inputs.
float	noise (VBase2 const value)
	Returns the noise function of the three inputs.
double	operator() (VBase2D const value)
	Returns the noise function of the three inputs.
float	operator() (VBase2 const value)
	Returns the noise function of the three inputs.
double	operator() (double x, double y)
	Returns the noise function of the three inputs.
StackedPerlinNoise2	operator= (StackedPerlinNoise2 const copy)
	Creates an exact duplicate of the existing StackedPerlinNoise2 object, including the random seed.

Detailed Description

Implements a multi-layer PerlinNoise, with one or more high-frequency noise functions added to a lower-frequency base noise function.

Constructor & Destructor Documentation

StackedPerlinNoise2 ( )

Creates a StackedPerlinNoise2 object with no levels.

You should call add_level() to add each level by hand.

StackedPerlinNoise2 ( StackedPerlinNoise2 const copy )

Creates an exact duplicate of the existing StackedPerlinNoise2 object, including the random seed.

StackedPerlinNoise2	(	double	sx,
		double	sy,
		int	num_levels,
		double	scale_factor,
		double	amp_scale,
		int	table_size,
		unsigned long int	seed
	)

Creates num_levels nested PerlinNoise2 objects.

Each stacked Perlin object will have a scale of 1 / scale_factor times the previous object (so that it is higher-frequency, if scale_factor > 1), and an amplitude of amp_scale times the previous object (so that it is less important, if amp_scale < 1).

StackedPerlinNoise2	(	double	sx,
		double	sy,
		int	num_levels,
		double	scale_factor,
		double	amp_scale,
		int	table_size
	)

Creates num_levels nested PerlinNoise2 objects.

Each stacked Perlin object will have a scale of 1 / scale_factor times the previous object (so that it is higher-frequency, if scale_factor > 1), and an amplitude of amp_scale times the previous object (so that it is less important, if amp_scale < 1).

StackedPerlinNoise2	(	double	sx,
		double	sy,
		int	num_levels,
		double	scale_factor,
		double	amp_scale
	)

Creates num_levels nested PerlinNoise2 objects.

Each stacked Perlin object will have a scale of 1 / scale_factor times the previous object (so that it is higher-frequency, if scale_factor > 1), and an amplitude of amp_scale times the previous object (so that it is less important, if amp_scale < 1).

StackedPerlinNoise2	(	double	sx,
		double	sy,
		int	num_levels,
		double	scale_factor
	)

Creates num_levels nested PerlinNoise2 objects.

Each stacked Perlin object will have a scale of 1 / scale_factor times the previous object (so that it is higher-frequency, if scale_factor > 1), and an amplitude of amp_scale times the previous object (so that it is less important, if amp_scale < 1).

StackedPerlinNoise2	(	double	sx,
		double	sy,
		int	num_levels
	)

Creates num_levels nested PerlinNoise2 objects.

Each stacked Perlin object will have a scale of 1 / scale_factor times the previous object (so that it is higher-frequency, if scale_factor > 1), and an amplitude of amp_scale times the previous object (so that it is less important, if amp_scale < 1).

StackedPerlinNoise2	(	double	sx,
		double	sy
	)

Creates num_levels nested PerlinNoise2 objects.

Each stacked Perlin object will have a scale of 1 / scale_factor times the previous object (so that it is higher-frequency, if scale_factor > 1), and an amplitude of amp_scale times the previous object (so that it is less important, if amp_scale < 1).

Member Function Documentation

addLevel	(	PerlinNoise2 const	level,
		double	amp
	)

Adds an arbitrary PerlinNoise2 object, and an associated amplitude, to the stack.

addLevel ( PerlinNoise2 const level )

Adds an arbitrary PerlinNoise2 object, and an associated amplitude, to the stack.

clear ( )

Removes all levels from the stack.

You must call add_level() again to restore them.

double noise ( VBase2D const value )