javax.vecmath

Class Vector2f

public class Vector2f extends Tuple2f implements Serializable

A 2 element vector that is represented by single precision floating point x,y coordinates.
Constructor Summary
Vector2f(float x, float y)
Constructs and initializes a Vector2f from the specified xy coordinates.
Vector2f(float[] v)
Constructs and initializes a Vector2f from the specified array.
Vector2f(Vector2f v1)
Constructs and initializes a Vector2f from the specified Vector2f.
Vector2f(Vector2d v1)
Constructs and initializes a Vector2f from the specified Vector2d.
Vector2f(Tuple2f t1)
Constructs and initializes a Vector2f from the specified Tuple2f.
Vector2f(Tuple2d t1)
Constructs and initializes a Vector2f from the specified Tuple2d.
Vector2f()
Constructs and initializes a Vector2f to (0,0).
Method Summary
floatangle(Vector2f v1)
Returns the angle in radians between this vector and the vector parameter; the return value is constrained to the range [0,PI].
floatdot(Vector2f v1)
Computes the dot product of the this vector and vector v1.
floatlength()
Returns the length of this vector.
floatlengthSquared()
Returns the squared length of this vector.
voidnormalize()
Normalizes this vector in place.
voidnormalize(Vector2f v1)
Sets the value of this vector to the normalization of vector v1.

Constructor Detail

Vector2f

public Vector2f(float x, float y)
Constructs and initializes a Vector2f from the specified xy coordinates.

Parameters: x the x coordinate y the y coordinate

Vector2f

public Vector2f(float[] v)
Constructs and initializes a Vector2f from the specified array.

Parameters: v the array of length 2 containing xy in order

Vector2f

public Vector2f(Vector2f v1)
Constructs and initializes a Vector2f from the specified Vector2f.

Parameters: v1 the Vector2f containing the initialization x y data

Vector2f

public Vector2f(Vector2d v1)
Constructs and initializes a Vector2f from the specified Vector2d.

Parameters: v1 the Vector2f containing the initialization x y data

Vector2f

public Vector2f(Tuple2f t1)
Constructs and initializes a Vector2f from the specified Tuple2f.

Parameters: t1 the Tuple2f containing the initialization x y data

Vector2f

public Vector2f(Tuple2d t1)
Constructs and initializes a Vector2f from the specified Tuple2d.

Parameters: t1 the Tuple2d containing the initialization x y data

Vector2f

public Vector2f()
Constructs and initializes a Vector2f to (0,0).

Method Detail

angle

public final float angle(Vector2f v1)
Returns the angle in radians between this vector and the vector parameter; the return value is constrained to the range [0,PI].

Parameters: v1 the other vector

Returns: the angle in radians in the range [0,PI]

dot

public final float dot(Vector2f v1)
Computes the dot product of the this vector and vector v1.

Parameters: v1 the other vector

length

public final float length()
Returns the length of this vector.

Returns: the length of this vector

lengthSquared

public final float lengthSquared()
Returns the squared length of this vector.

Returns: the squared length of this vector

normalize

public final void normalize()
Normalizes this vector in place.

normalize

public final void normalize(Vector2f v1)
Sets the value of this vector to the normalization of vector v1.

Parameters: v1 the un-normalized vector