Package org.apache.commons.math3.geometry.spherical.twod

Class Sphere2D

java.lang.Object

org.apache.commons.math3.geometry.spherical.twod.Sphere2D

All Implemented Interfaces:

Serializable, Space

public class Sphere2D
extends Object
implements Serializable, Space

This class implements a two-dimensional sphere (i.e. the regular sphere).

We use here the topologists definition of the 2-sphere (see Sphere on MathWorld), i.e. the 2-sphere is the two-dimensional surface defined in 3D as x²+y²+z²=1.

Since:

3.3

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
int	getDimension()	Get the dimension of the space.
static Sphere2D	getInstance()	Get the unique instance.
Sphere1D	getSubSpace()	Get the n-1 dimension subspace of this space.

Methods inherited from class java.lang.Object

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

Method Details

getInstance

public static Sphere2D getInstance()

Get the unique instance.

Returns:

the unique instance

getDimension

public int getDimension()

Get the dimension of the space.

Specified by:

getDimension in interface Space

Returns:

dimension of the space

getSubSpace

public Sphere1D getSubSpace()

Get the n-1 dimension subspace of this space.

Specified by:

getSubSpace in interface Space

Returns:

n-1 dimension sub-space of this space

See Also:

• Space.getDimension()