org.jscience.mathematics.geometry
Class CenterOfMasses

java.lang.Object
  org.jscience.mathematics.geometry.CenterOfMasses

public class CenterOfMasses
extends java.lang.Object

A class representing common perimeters, areas, volumes, center of mass (barycenter or gravity center) for various polygons.

Constructor Summary

CenterOfMasses()

Method Summary

static Point2D	getBarycenter(Point2D[] positions, double[] masses) Gets barycenter for a group of masses and their associated weight
static Point3D	getBarycenter(Point3D[] positions, double[] masses) Gets barycenter for a group of masses and their associated weight
static double	getCirclePerimeter(double radius) Gets perimeter for a circle
static double	getCircleSurface(double radius) Gets surface for a circle
static double	getConeSurface(double radius, double height) Gets surface for a cone
static double	getConeVolume(double radius, double height) Gets volume for a cone
static double	getCubeSurface(double edge) Gets volume for a cube
static double	getCubeVolume(double edge) Gets volume for a cube
static double	getCylinderSurface(double radius, double height) Gets surface for a cylinder
static double	getCylinderVolume(double radius, double height) Gets volume for a cylinder
static double	getEllipseSurface(double shortRadius, double longRadius) Gets surface for a ellipse
static double	getEllipsoidVolume(double radius1, double radius2, double radius3) Gets volume for an ellipsoid
static double	getParallelogramSurface(double base, double height) Gets surface for a parallelogram
static double	getPyramidSurface(double base, double height) Gets surface for a pyramid
static double	getPyramidVolume(double base, double height) Gets volume for a pyramid
static double	getRectanglePerimeter(double shortEdge, double longEdge) Gets perimeter for a rectangle
static double	getRectangleSurface(double shortEdge, double longEdge) Gets surface for a rectangle
static double	getRectangularPrismSurface(double edge1, double edge2, double edge3) Gets surface for a rectangular prism
static double	getRectangularPrismVolume(double edge1, double edge2, double edge3) Gets volume for a rectangular prism
static double	getSphereSurface(double radius) Gets surface for a sphere
static double	getSphereVolume(double radius) Gets volume for a sphere
static double	getSquarePerimeter(double edge) Gets perimeter for a square
static double	getSquareSurface(double edge) Gets surface for a square
static double	getTetrahedronSurface(double edge) Gets surface for a regular tetrahedron
static double	getTetrahedronVolume(double edge) Gets volume for a regular tetrahedron
static double	getTrapezoidSurface(double longEdge, double shortEdge, double height) Gets surface for a trapezoid
static double	getTrianglePerimeter(double edge1, double edge2, double edge3) Gets perimeter for a triangle
static double	getTriangleSurface(double base, double height) Gets surface for a triangle

Methods inherited from class java.lang.Object

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

Constructor Detail

CenterOfMasses

public CenterOfMasses()

Method Detail

getBarycenter

public static Point2D getBarycenter(Point2D[] positions,
                                    double[] masses)

Gets barycenter for a group of masses and their associated weight

Parameters:

positions - DOCUMENT ME!

masses - DOCUMENT ME!

Returns:

DOCUMENT ME!

getBarycenter

public static Point3D getBarycenter(Point3D[] positions,
                                    double[] masses)

Gets barycenter for a group of masses and their associated weight

Parameters:

positions - DOCUMENT ME!

masses - DOCUMENT ME!

Returns:

DOCUMENT ME!

getSquarePerimeter

public static double getSquarePerimeter(double edge)

Gets perimeter for a square

Parameters:

edge - DOCUMENT ME!

Returns:

DOCUMENT ME!

getRectanglePerimeter

public static double getRectanglePerimeter(double shortEdge,
                                           double longEdge)

Gets perimeter for a rectangle

Parameters:

shortEdge - DOCUMENT ME!

longEdge - DOCUMENT ME!

Returns:

DOCUMENT ME!

getTrianglePerimeter

public static double getTrianglePerimeter(double edge1,
                                          double edge2,
                                          double edge3)

Gets perimeter for a triangle

Parameters:

edge1 - DOCUMENT ME!

edge2 - DOCUMENT ME!

edge3 - DOCUMENT ME!

Returns:

DOCUMENT ME!

getCirclePerimeter

public static double getCirclePerimeter(double radius)

Gets perimeter for a circle

Parameters:

radius - DOCUMENT ME!

Returns:

DOCUMENT ME!

getSquareSurface

public static double getSquareSurface(double edge)

Gets surface for a square

Parameters:

edge - DOCUMENT ME!

Returns:

DOCUMENT ME!

getRectangleSurface

public static double getRectangleSurface(double shortEdge,
                                         double longEdge)

Gets surface for a rectangle

Parameters:

shortEdge - DOCUMENT ME!

longEdge - DOCUMENT ME!

Returns:

DOCUMENT ME!

getParallelogramSurface

public static double getParallelogramSurface(double base,
                                             double height)

Gets surface for a parallelogram

Parameters:

base - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getTrapezoidSurface

public static double getTrapezoidSurface(double longEdge,
                                         double shortEdge,
                                         double height)

Gets surface for a trapezoid

Parameters:

longEdge - DOCUMENT ME!

shortEdge - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getTriangleSurface

public static double getTriangleSurface(double base,
                                        double height)

Gets surface for a triangle

Parameters:

base - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getCircleSurface

public static double getCircleSurface(double radius)

Gets surface for a circle

Parameters:

radius - DOCUMENT ME!

Returns:

DOCUMENT ME!

getEllipseSurface

public static double getEllipseSurface(double shortRadius,
                                       double longRadius)

Gets surface for a ellipse

Parameters:

shortRadius - DOCUMENT ME!

longRadius - DOCUMENT ME!

Returns:

DOCUMENT ME!

getCubeSurface

public static double getCubeSurface(double edge)

Gets volume for a cube

Parameters:

edge - DOCUMENT ME!

Returns:

DOCUMENT ME!

getCubeVolume

public static double getCubeVolume(double edge)

Gets volume for a cube

Parameters:

edge - DOCUMENT ME!

Returns:

DOCUMENT ME!

getRectangularPrismSurface

public static double getRectangularPrismSurface(double edge1,
                                                double edge2,
                                                double edge3)

Gets surface for a rectangular prism

Parameters:

edge1 - DOCUMENT ME!

edge2 - DOCUMENT ME!

edge3 - DOCUMENT ME!

Returns:

DOCUMENT ME!

getRectangularPrismVolume

public static double getRectangularPrismVolume(double edge1,
                                               double edge2,
                                               double edge3)

Gets volume for a rectangular prism

Parameters:

edge1 - DOCUMENT ME!

edge2 - DOCUMENT ME!

edge3 - DOCUMENT ME!

Returns:

DOCUMENT ME!

getCylinderSurface

public static double getCylinderSurface(double radius,
                                        double height)

Gets surface for a cylinder

Parameters:

radius - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getCylinderVolume

public static double getCylinderVolume(double radius,
                                       double height)

Gets volume for a cylinder

Parameters:

radius - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getConeSurface

public static double getConeSurface(double radius,
                                    double height)

Gets surface for a cone

Parameters:

radius - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getConeVolume

public static double getConeVolume(double radius,
                                   double height)

Gets volume for a cone

Parameters:

radius - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getSphereSurface

public static double getSphereSurface(double radius)

Gets surface for a sphere

Parameters:

radius - DOCUMENT ME!

Returns:

DOCUMENT ME!

getSphereVolume

public static double getSphereVolume(double radius)

Gets volume for a sphere

Parameters:

radius - DOCUMENT ME!

Returns:

DOCUMENT ME!

getEllipsoidVolume

public static double getEllipsoidVolume(double radius1,
                                        double radius2,
                                        double radius3)

Gets volume for an ellipsoid

Parameters:

radius1 - DOCUMENT ME!

radius2 - DOCUMENT ME!

radius3 - DOCUMENT ME!

Returns:

DOCUMENT ME!

getPyramidSurface

public static double getPyramidSurface(double base,
                                       double height)

Gets surface for a pyramid

Parameters:

base - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getPyramidVolume

public static double getPyramidVolume(double base,
                                      double height)

Gets volume for a pyramid

Parameters:

base - DOCUMENT ME!

height - DOCUMENT ME!

Returns:

DOCUMENT ME!

getTetrahedronSurface

public static double getTetrahedronSurface(double edge)

Gets surface for a regular tetrahedron

Parameters:

edge - DOCUMENT ME!

Returns:

DOCUMENT ME!

getTetrahedronVolume

public static double getTetrahedronVolume(double edge)

Gets volume for a regular tetrahedron

Parameters:

edge - DOCUMENT ME!

Returns:

DOCUMENT ME!