ProGAL.geom3d.volumes
Class Lens

java.lang.Object
  ProGAL.geom3d.volumes.Lens

All Implemented Interfaces:

Shape, Volume

public class Lens
extends java.lang.Object
implements Volume

A lens is the intersection between two spheres.

Author:

R.Fonseca

Constructor Summary

Lens(Sphere s0, Sphere s1)
Construct a lens from the two spheres.

Method Summary

Lens	clone() Make a deep clone this volume.
double	distance(Lens l)
double	distance(Point p)
Point	getCenter() Get the geometric center of the shape.
double	getFocalDistance(int i) The distance from a focal point to the equator of the lens
double	getRadius() Radius of the equator of the lens
Point	getSphereCenter(int i)
double	getSphereRadius(int i)
double	getVolume() The volume of the lens
static void	main(java.lang.String[] args)
boolean	overlaps(Volume vol) Determine if this volume overlaps vol.

Methods inherited from class java.lang.Object

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

Constructor Detail

Lens

public Lens(Sphere s0,
            Sphere s1)

Construct a lens from the two spheres. A IllegalArgumentException is thrown if the spheres have empty or single point intersection. Note that the two spheres given as arguments are not stored, and subsequent changes to the lens should be performed through appropriate setters.

Method Detail

getRadius

public double getRadius()

Radius of the equator of the lens

getFocalDistance

public double getFocalDistance(int i)

The distance from a focal point to the equator of the lens

getSphereRadius

public double getSphereRadius(int i)

getSphereCenter

public Point getSphereCenter(int i)

getCenter

public Point getCenter()

Description copied from interface: Shape

Get the geometric center of the shape. The center of a shape can be interpreted in many ways (center of mass, circumcenter, inscribed center etc.). No strict requirement is given here, but typically the circumcenter should be supplied. This method is most prominently used to find the average center-position of a collection of shapes such that scene-viewers can be centered on the scene.

Specified by:

getCenter in interface Shape

overlaps

public boolean overlaps(Volume vol)

Description copied from interface: Volume

Determine if this volume overlaps vol. Two volumes overlap if their surfaces touch or if the union of interiors is non-empty.

Specified by:

overlaps in interface Volume

getVolume

public double getVolume()

The volume of the lens

Specified by:

getVolume in interface Volume

clone

public Lens clone()

Description copied from interface: Volume

Make a deep clone this volume.

Specified by:

clone in interface Volume

Overrides:

clone in class java.lang.Object

distance

public double distance(Point p)

distance

public double distance(Lens l)

main

public static void main(java.lang.String[] args)

Parameters:

args -