edu.colorado.cires.cmg.mvt.util

Class Vec2d

java.lang.Object

edu.colorado.cires.cmg.mvt.util.Vec2d

public final class Vec2d
extends Object

Mutable Vector with double-valued x and y dimensions.

Field Summary

Fields

Modifier and Type	Field and Description
double	x
double	y

Constructor Summary

Constructors

Constructor and Description
Vec2d() Construct instance with x = 0, y = 0.
Vec2d(double x, double y) Construct instance with (x, y) values set to passed parameters.
Vec2d(Vec2d v) Constructs instance with values from the input vector 'v'.

Method Summary

Modifier and Type	Method and Description
Vec2d	add(double x, double y) Adds the given values to this vector.
Vec2d	add(Vec2d v) Adds the given vector 'v' to this vector.
Vec2d	scale(double scalar) Scales this vector's values by a constant.
Vec2d	set(double x, double y) Set the x and y values of this vector.
Vec2d	set(Vec2d v) Set the x and y values of this vector to match input vector 'v'.
Vec2d	sub(double x, double y) Subtracts the given values from this vector.
Vec2d	sub(Vec2d v) Subtracts the given vector 'v' from this vector.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

x

public double x

y

public double y

Constructor Detail

Vec2d

public Vec2d()

Construct instance with x = 0, y = 0.

Vec2d

public Vec2d(double x,
             double y)

Construct instance with (x, y) values set to passed parameters.

Parameters:

x - value in x

y - value in y

Vec2d

public Vec2d(Vec2d v)

Constructs instance with values from the input vector 'v'.

Parameters:

v - The vector

Method Detail

set

public Vec2d set(double x,
                 double y)

Set the x and y values of this vector. Return this vector for chaining.

Parameters:

x - value in x

y - value in y

Returns:

this vector for chaining

set

public Vec2d set(Vec2d v)

Set the x and y values of this vector to match input vector 'v'. Return this vector for chaining.

Parameters:

v - contains values to copy

Returns:

this vector for chaining

add

public Vec2d add(double x,
                 double y)

Adds the given values to this vector. Return this vector for chaining.

Parameters:

x - value in x

y - value in y

Returns:

this vector for chaining

add

public Vec2d add(Vec2d v)

Adds the given vector 'v' to this vector. Return this vector for chaining.

Parameters:

v - vector to add

Returns:

this vector for chaining

sub

public Vec2d sub(double x,
                 double y)

Subtracts the given values from this vector. Return this vector for chaining.

Parameters:

x - value in x to subtract

y - value in y to subtract

Returns:

this vector for chaining

sub

public Vec2d sub(Vec2d v)

Subtracts the given vector 'v' from this vector. Return this vector for chaining.

Parameters:

v - vector to subtract

Returns:

this vector for chaining

scale

public Vec2d scale(double scalar)

Scales this vector's values by a constant.

Parameters:

scalar - constant to scale this vector's values by

Returns:

this vector for chaining

toString

public String toString()

Overrides:

toString in class Object