PinBallDomain
Class Point

java.lang.Object
  PinBallDomain.Point

public class Point
extends java.lang.Object

A 2D point

Author:

George Konidaris (gdk at cs dot umass dot edu)

Constructor Summary

Point(double xx, double yy)
Construct a point.

Method Summary

Point	add(Point b) Compute a new point that is this point plus another.
Point	addTo(Point b) Add another point to this one.
double	angleBetween(Point p) Compute the angle between this point and another.
double	distanceTo(Point t) Get the distance from this point to another.
double	dot(Point b) Compute the dot product of this and a given point.
double	getX() Get the point's X coordinate.
double	getY() Get the point's Y coordinate.
Point	minus(Point b) Compute a new point that is the difference between this point and another.
Point	normalize() Compute a normalized version of this point.
double	size() Return the length of the vector corresponding to this point.
Point	times(double d) Compute a new point that is a constant multiple of this point.

Methods inherited from class java.lang.Object

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

Constructor Detail

Point

public Point(double xx,
             double yy)

Construct a point.

Parameters:

xx - X coordinate

yy - Y coordinate

Method Detail

getX

public double getX()

Get the point's X coordinate.

Returns:

X coordinate

getY

public double getY()

Get the point's Y coordinate.

Returns:

Y coordinate

distanceTo

public double distanceTo(Point t)

Get the distance from this point to another.

Parameters:

t - other point

Returns:

distance from this point to t

minus

public Point minus(Point b)

Compute a new point that is the difference between this point and another.

Parameters:

b - the point to subtract

Returns:

the new point

dot

public double dot(Point b)

Compute the dot product of this and a given point.

Parameters:

b - the other point

Returns:

the dot product between this point and b

times

public Point times(double d)

Compute a new point that is a constant multiple of this point.

Parameters:

d - multiple

Returns:

the new point

add

public Point add(Point b)

Compute a new point that is this point plus another.

Parameters:

b - the other point

Returns:

the new point

addTo

public Point addTo(Point b)

Add another point to this one.

Parameters:

b - the other point

Returns:

this point (after addition)

size

public double size()

Return the length of the vector corresponding to this point.

Returns:

the size of this point

normalize

public Point normalize()

Compute a normalized version of this point.

Returns:

the normalized point

angleBetween

public double angleBetween(Point p)

Compute the angle between this point and another.

Parameters:

p - the other point

Returns:

the angle between this point and p