javax.vecmath
Class Vector4f

java.lang.Object
  |
  +--javax.vecmath.Tuple4f
        |
        +--javax.vecmath.Vector4f

public class Vector4f

extends Tuple4f

implements java.io.Serializable

A 4-element vector represented by single-precision floating point x,y,z,w coordinates.

See Also:

Serialized Form

Fields inherited from class javax.vecmath.Tuple4f

w, x, y, z

Constructor Summary

Vector4f()
Constructs and initializes a Vector4f to (0,0,0,0).

Vector4f(float[] v)
Constructs and initializes a Vector4f from the array of length 4.

Vector4f(float x, float y, float z, float w)
Constructs and initializes a Vector4f from the specified xyzw coordinates.

Vector4f(Tuple3f t1)
Constructs and initializes a Vector4f from the specified Tuple3f.

Vector4f(Tuple4d t1)
Constructs and initializes a Vector4f from the specified Tuple4d.

Vector4f(Tuple4f t1)
Constructs and initializes a Vector4f from the specified Tuple4f.

Vector4f(Vector4d v1)
Constructs and initializes a Vector4f from the specified Vector4d.

Vector4f(Vector4f v1)
Constructs and initializes a Vector4f from the specified Vector4f.

Method Summary

float	angle(Vector4f v1) Returns the (4-space) angle in radians between this vector and the vector parameter; the return value is constrained to the range [0,PI].
float	dot(Vector4f v1) returns the dot product of this vector and v1
float	length() Returns the length of this vector.
float	lengthSquared() Returns the squared length of this vector
void	normalize() Normalizes this vector in place.
void	normalize(Vector4f v1) Sets the value of this vector to the normalization of vector v1.
void	set(Tuple3f t1) Sets the x,y,z components of this vector to the corresponding components of tuple t1.

Methods inherited from class javax.vecmath.Tuple4f

absolute, absolute, add, add, clamp, clamp, clampMax, clampMax, clampMin, clampMin, epsilonEquals, equals, equals, get, get, hashCode, interpolate, interpolate, negate, negate, scale, scale, scaleAdd, scaleAdd, set, set, set, set, sub, sub, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Vector4f

public Vector4f(float x,
                float y,
                float z,
                float w)

Constructs and initializes a Vector4f from the specified xyzw coordinates.

Parameters:

x - the x coordinate

y - the y coordinate

z - the z coordinate

w - the w coordinate

Vector4f

public Vector4f(float[] v)

Constructs and initializes a Vector4f from the array of length 4.

Parameters:

v - the array of length 4 containing xyzw in order

Vector4f

public Vector4f(Vector4f v1)

Constructs and initializes a Vector4f from the specified Vector4f.

Parameters:

v1 - the Vector4f containing the initialization x y z w data

Vector4f

public Vector4f(Vector4d v1)

Constructs and initializes a Vector4f from the specified Vector4d.

Parameters:

v1 - the Vector4d containing the initialization x y z w data

Vector4f

public Vector4f(Tuple4f t1)

Constructs and initializes a Vector4f from the specified Tuple4f.

Parameters:

t1 - the Tuple4f containing the initialization x y z w data

Vector4f

public Vector4f(Tuple4d t1)

Constructs and initializes a Vector4f from the specified Tuple4d.

Parameters:

t1 - the Tuple4d containing the initialization x y z w data

Vector4f

public Vector4f(Tuple3f t1)

Constructs and initializes a Vector4f from the specified Tuple3f. The x,y,z components of this vector are set to the corresponding components of tuple t1. The w component of this vector is set to 0.

Parameters:

t1 - the tuple to be copied

Since:

Java 3D 1.2

Vector4f

public Vector4f()

Constructs and initializes a Vector4f to (0,0,0,0).

Method Detail

set

public final void set(Tuple3f t1)

Sets the x,y,z components of this vector to the corresponding components of tuple t1. The w component of this vector is set to 0.

Parameters:

t1 - the tuple to be copied

Since:

Java 3D 1.2

length

public final float length()

Returns the length of this vector.

Returns:

the length of this vector as a float

lengthSquared

public final float lengthSquared()

Returns the squared length of this vector

Returns:

the squared length of this vector as a float

dot

public final float dot(Vector4f v1)

returns the dot product of this vector and v1

Parameters:

v1 - the other vector

Returns:

the dot product of this vector and v1

normalize

public final void normalize(Vector4f v1)

Sets the value of this vector to the normalization of vector v1.

Parameters:

v1 - the un-normalized vector

normalize

public final void normalize()

Normalizes this vector in place.

angle

public final float angle(Vector4f v1)

Returns the (4-space) 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]