CS::Math::Noise::Model::Sphere Class Reference
[Models]

Model that defines the surface of a sphere. More...

#include <cstool/noise/model/sphere.h>

List of all members.

Public Member Functions
const CS::Math::Noise::Module::Module &	GetModule () const
	Returns the noise module that is used to generate the output values.
double	GetValue (double lat, double lon) const
	Returns the output value from the noise module given the (latitude, longitude) coordinates of the specified input value located on the surface of the sphere.
void	SetModule (const CS::Math::Noise::Module::Module &module)
	Sets the noise module that is used to generate the output values.
	Sphere (const CS::Math::Noise::Module::Module &module)
	Constructor.
	Sphere ()
	Constructor.

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Detailed Description

Model that defines the surface of a sphere.

This model returns an output value from a noise module given the coordinates of an input value located on the surface of a sphere.

To generate an output value, pass the (latitude, longitude) coordinates of an input value to the GetValue() method.

This model is useful for creating:

• seamless textures that can be mapped onto a sphere
• terrain height maps for entire planets

This sphere has a radius of 1.0 unit and its center is located at the origin.

Definition at line 56 of file sphere.h.

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Constructor & Destructor Documentation

CS::Math::Noise::Model::Sphere::Sphere

(

)

Constructor.

CS::Math::Noise::Model::Sphere::Sphere

(

const CS::Math::Noise::Module::Module &

module

)

Constructor.

Parameters:

module

The noise module that is used to generate the output values.

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Member Function Documentation

const CS::Math::Noise::Module::Module& CS::Math::Noise::Model::Sphere::GetModule

(

)

const [inline]

Returns the noise module that is used to generate the output values.

Returns:

A reference to the noise module.

Precondition:

A noise module was passed to the SetModule() method.

Definition at line 76 of file sphere.h.

double CS::Math::Noise::Model::Sphere::GetValue	(	double	lat,
		double	lon
	)			const

Returns the output value from the noise module given the (latitude, longitude) coordinates of the specified input value located on the surface of the sphere.

Parameters:

	lat	The latitude of the input value, in degrees.
	lon	The longitude of the input value, in degrees.

Returns:

The output value from the noise module.

Precondition:

A noise module was passed to the SetModule() method.

This output value is generated by the noise module passed to the SetModule() method.

Use a negative latitude if the input value is located on the southern hemisphere.

Use a negative longitude if the input value is located on the western hemisphere.

void CS::Math::Noise::Model::Sphere::SetModule

(

const CS::Math::Noise::Module::Module &

module

)

[inline]

Sets the noise module that is used to generate the output values.

Parameters:

module

The noise module that is used to generate the output values.

This noise module must exist for the lifetime of this object, until you pass a new noise module to this method.

Definition at line 110 of file sphere.h.

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The documentation for this class was generated from the following file:

• cstool/noise/model/sphere.h