Class Point2D

java.lang.Object
  Point2D

public class Point2D
extends java.lang.Object

Utility class for managing points in 2D

Author:

C. D'Arcy

Constructor Summary

Point2D()
Sets coordinates to (0.0, 0.0)

Point2D(double[] c)
Sets coordinates to (c[0],c[1])

Point2D(double x, double y)
Sets coordinates to (x,y)

Method Summary

double	getCoordinate(int i) Accessor method used to retrieve specific coordinate
double[]	getCoordinates() Accessor method used to retrieve coordinate array
void	setCoordinate(int i, double value) Modifier method allows client (or this) to set a new value for either coordinate
void	setCoordinates(double[] c) Sets coordinates to (c[0],c[1])
void	setCoordinates(Point2D other) Modifier methood that sets coordinates of this object to the same as the Point2D parameter
void	setLocation(double x, double y) Modifier method allows client (or this) to set new coordinates
java.lang.String	toString() Composes and returns meaningful string representation of the ordered pair

Methods inherited from class java.lang.Object

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

Constructor Detail

Point2D

public Point2D()

Sets coordinates to (0.0, 0.0)

Point2D

public Point2D(double x,
               double y)

Sets coordinates to (x,y)

Parameters:

x - the abscissa (x value)

y - the ordinate (y value)

Point2D

public Point2D(double[] c)

Sets coordinates to (c[0],c[1])

Parameters:

c - array containing the new coordinates

Method Detail

setLocation

public void setLocation(double x,
                        double y)

Modifier method allows client (or this) to set new coordinates

Parameters:

x - the new abscissa (x value)

y - the new ordinate (y value)

setCoordinate

public void setCoordinate(int i,
                          double value)

Modifier method allows client (or this) to set a new value for either coordinate

Parameters:

i - the index of the new coordinate (0 for x, 1 for y)

value - the new coordinate

setCoordinates

public void setCoordinates(double[] c)

Sets coordinates to (c[0],c[1])

Parameters:

c - array containing the new coordinates

setCoordinates

public void setCoordinates(Point2D other)

Modifier methood that sets coordinates of this object to the same as the Point2D parameter

Parameters:

other - Point2D object to be duplicated

getCoordinates

public double[] getCoordinates()

Accessor method used to retrieve coordinate array

getCoordinate

public double getCoordinate(int i)

Accessor method used to retrieve specific coordinate

Parameters:

i - the index of the coordinate to be retrieved (0 for x, 1 for y)

toString

public java.lang.String toString()

Composes and returns meaningful string representation of the ordered pair

Overrides:

toString in class java.lang.Object