hu.elte.animaltracker.model.tracking

Class Vector2D

java.lang.Object

hu.elte.animaltracker.model.tracking.Vector2D

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class Vector2D
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable

This class is an implementation of the 2D Euclidean vector.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected double	direction
protected java.awt.geom.Point2D.Float	from
protected double	length
protected java.awt.geom.Point2D.Float	to

Constructor Summary

Constructors

Constructor and Description
Vector2D(double length, double direction) Creates a vector with the given length and direction.
Vector2D(java.awt.geom.Point2D.Float from, java.awt.geom.Point2D.Float to) Creates a vector using two points.

Method Summary

Modifier and Type	Method and Description
Vector2D	clone()
double	getDegree() Returns the direction of the vector in degrees.
double	getLength() Returns the magnitude of the vector.
Vector2D	getOrigo() Shifts a copy of the vector to the origo (0,0).
java.awt.geom.Point2D.Float	getP1() Returns starting point.
java.awt.geom.Point2D.Float	getP2() Returns end point.
double	getRadian() Returns the direction of the vector in radians.
void	multiply(double scale) Multiplies the vector.
protected double	radianNorm(double radian) Limits the radian value between 0 and 2 PI.
protected void	setDirection() Calculates the direction from p1 and p2.
void	setDirection(double rad) Sets the new direction in radians.
void	setP1(float x, float y) Sets starting point.
void	setP1(java.awt.geom.Point2D.Float p1) Sets starting point.
void	setP2(float x, float y) Sets end point.
void	setP2(java.awt.geom.Point2D.Float p2) Sets end point.
void	shiftWith(java.awt.geom.Point2D.Float p) Shifts this vector by the given point.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

length

protected double length

direction

protected double direction

from

protected java.awt.geom.Point2D.Float from

to

protected java.awt.geom.Point2D.Float to

Constructor Detail

Vector2D

public Vector2D(double length,
                double direction)

Creates a vector with the given length and direction.

Parameters:

length - magnitude of vector

direction - direction of vector in radians.

Vector2D

public Vector2D(java.awt.geom.Point2D.Float from,
                java.awt.geom.Point2D.Float to)

Creates a vector using two points.

Method Detail

radianNorm

protected double radianNorm(double radian)

Limits the radian value between 0 and 2 PI.

Parameters:

radian -

Returns:

getLength

public double getLength()

Returns the magnitude of the vector.

getRadian

public double getRadian()

Returns the direction of the vector in radians.

getDegree

public double getDegree()

Returns the direction of the vector in degrees.

setP1

public void setP1(float x,
                  float y)

Sets starting point.

setP1

public void setP1(java.awt.geom.Point2D.Float p1)

Sets starting point.

setP2

public void setP2(float x,
                  float y)

Sets end point.

setP2

public void setP2(java.awt.geom.Point2D.Float p2)

Sets end point.

getP1

public java.awt.geom.Point2D.Float getP1()

Returns starting point.

getP2

public java.awt.geom.Point2D.Float getP2()

Returns end point.

getOrigo

public Vector2D getOrigo()

Shifts a copy of the vector to the origo (0,0).

shiftWith

public void shiftWith(java.awt.geom.Point2D.Float p)

Shifts this vector by the given point.

Parameters:

p -

setDirection

protected void setDirection()

Calculates the direction from p1 and p2.

setDirection

public void setDirection(double rad)

Sets the new direction in radians.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

multiply

public void multiply(double scale)

Multiplies the vector.

clone

public Vector2D clone()

Overrides:

clone in class java.lang.Object