com.sun.javafx.geom

Class Quat4f

java.lang.Object

com.sun.javafx.geom.Quat4f

public class Quat4f
extends java.lang.Object

A 4 element unit quaternion represented by single precision floating point x,y,z,w coordinates. The quaternion is always normalized.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static double	EPS2
float	w The w coordinate.
float	x The x coordinate.
float	y The y coordinate.
float	z The z coordinate.

Constructor Summary

Constructors

Constructor and Description
Quat4f() Constructs and initializes a Quat4f to (0,0,0,0).
Quat4f(float[] q) Constructs and initializes a Quat4f from the array of length 4.
Quat4f(float x, float y, float z, float w) Constructs and initializes a Quat4f from the specified xyzw coordinates.
Quat4f(Quat4f q1) Constructs and initializes a Quat4f from the specified Quat4f.

Method Summary

Modifier and Type	Method and Description
void	normalize() Normalizes the value of this quaternion in place.
void	scale(float s) Sets the value of this Quat4f to the scalar multiplication of the scale factor with this.
void	set(float[][] m1) Sets the value of this quaternion to the rotational component of the passed float matrix.
void	set(Matrix3f m1) Sets the value of this quaternion to the rotational component of the passed matrix.
java.lang.String	toString() Returns a String that represents the value of this Quat4f.

Methods inherited from class java.lang.Object

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

Field Detail

EPS2

static final double EPS2

See Also:

Constant Field Values

x

public float x

The x coordinate.

y

public float y

The y coordinate.

z

public float z

The z coordinate.

w

public float w

The w coordinate.

Constructor Detail

Quat4f

public Quat4f()

Constructs and initializes a Quat4f to (0,0,0,0).

Quat4f

public Quat4f(float x,
              float y,
              float z,
              float w)

Constructs and initializes a Quat4f from the specified xyzw coordinates.

Parameters:

x - the x coordinate

y - the y coordinate

z - the z coordinate

w - the w scalar component

Quat4f

public Quat4f(float[] q)

Constructs and initializes a Quat4f from the array of length 4.

Parameters:

q - the array of length 4 containing xyzw in order

Quat4f

public Quat4f(Quat4f q1)

Constructs and initializes a Quat4f from the specified Quat4f.

Parameters:

q1 - the Quat4f containing the initialization x y z w data

Method Detail

normalize

public final void normalize()

Normalizes the value of this quaternion in place.

set

public final void set(Matrix3f m1)

Sets the value of this quaternion to the rotational component of the passed matrix.

Parameters:

m1 - the Matrix3f

set

public final void set(float[][] m1)

Sets the value of this quaternion to the rotational component of the passed float matrix.

Parameters:

m1 - the float[3][3] matrix

scale

public final void scale(float s)

Sets the value of this Quat4f to the scalar multiplication of the scale factor with this.

Parameters:

s - the scalar value

toString

public java.lang.String toString()

Returns a String that represents the value of this Quat4f.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of this Quat4f.