backend.spheremodel
Class SphereModel

java.lang.Object
  java.util.Observable
      backend.spheremodel.SphereModel

public class SphereModel
extends java.util.Observable

SphereModel is a model of our sphere

Constructor Summary

SphereModel(javax.vecmath.Point3f center, float radius)
SphereModel default constructor

Method Summary

float	getArea() getArea will return the surface area of the sphere
javax.vecmath.Point3f	getCenter() getCenter returns a copy of the center point of the sphere
float	getCircumference() getCircumferenece will return the circumference of the sphere
float	getRadius() getRadius returns the current radius of the sphere
float	getRadiusSquared() getRadiusSquared returns the radius of the sphere squared.

Methods inherited from class java.util.Observable

addObserver, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers

Methods inherited from class java.lang.Object

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

Constructor Detail

SphereModel

public SphereModel(javax.vecmath.Point3f center,
                   float radius)

SphereModel default constructor

Parameters:

center - the center point of the sphere

radius - the radius of the sphere

Method Detail

getRadius

public float getRadius()

getRadius returns the current radius of the sphere

Returns:

the radius of the sphere model

getRadiusSquared

public float getRadiusSquared()

getRadiusSquared returns the radius of the sphere squared. It is stored to improve efficency.

Returns:

The radius of the sphere squared

getCenter

public javax.vecmath.Point3f getCenter()

getCenter returns a copy of the center point of the sphere

Returns:

the center of the sphere

getCircumference

public float getCircumference()

getCircumferenece will return the circumference of the sphere

Returns:

the Sphere's circumference.

getArea

public float getArea()

getArea will return the surface area of the sphere

Returns:

surface area of the sphere