mathematik
Class TransformMatrix4f

java.lang.Object
  mathematik.TransformMatrix4f

All Implemented Interfaces:

java.io.Serializable

public class TransformMatrix4f
extends java.lang.Object
implements java.io.Serializable

special form of a 4x4 matrix. first of all the way we represent the matrix in this class is similar to the way opengl handles the row column issue. transform matrix -- r = rotation, t = translation rxx rxy rxz 0 ryx ryy ryz 0 rzx rzy rzz 0 tx ty tz 1 the transform matrix is special in the way that is a 3x3 matrix for rotation and scale and a translation vector. the remaining four values a constants. this is the way opengl specifies a 4x4 matrix and also the way 'toArray' returns an array. m[0] m[4] m[8] m[12] m[1] m[5] m[9] m[13] M=( ) m[2] m[6] m[10] m[14] m[3] m[7] m[11] m[15] here is an excerpt from the glMultMatrix man page. "In many computer languages 4x4 arrays are represented in row-major order. The transformations just described represent these matrices in column-major order. The order of the multiplication is important. For example, if the current transformation is a rotation, and glMultMatrix is called with a translation matrix, the translation is done directly on the coordinates to be transformed, while the rotation is done on the results of that translation." also read 'The Matrix and Quaternions FAQ' at http://www.flipcode.com/documents/matrfaq.html

See Also:

Serialized Form

Field Summary

static int	IDENTITY
Matrix3f	rotation
Vector3f	translation

Constructor Summary

TransformMatrix4f()

TransformMatrix4f(float[] theMatrixArray)

TransformMatrix4f(int theType)

TransformMatrix4f(TransformMatrix4f theMatrix4f)

Method Summary

float	determinant()
static void	main(java.lang.String[] args)
void	multiply(float theValue)
void	multiply(float theValue, TransformMatrix4f theMatrix4f)
void	multiply(TransformMatrix4f theMatrix4f)
void	set(float[] theArrayRepresentation)
void	set(TransformMatrix4f mat)
void	setIdentity()
void	setRotationIdentity()
void	setZero()
float[]	toArray()
java.lang.String	toString()
void	transform(Vector3f theResult)

Methods inherited from class java.lang.Object

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

Field Detail

IDENTITY

public static int IDENTITY

rotation

public Matrix3f rotation

translation

public Vector3f translation

Constructor Detail

TransformMatrix4f

public TransformMatrix4f()

TransformMatrix4f

public TransformMatrix4f(int theType)

TransformMatrix4f

public TransformMatrix4f(TransformMatrix4f theMatrix4f)

TransformMatrix4f

public TransformMatrix4f(float[] theMatrixArray)

Method Detail

setIdentity

public final void setIdentity()

setRotationIdentity

public final void setRotationIdentity()

setZero

public final void setZero()

determinant

public final float determinant()

set

public final void set(TransformMatrix4f mat)

set

public final void set(float[] theArrayRepresentation)

multiply

public final void multiply(float theValue)

multiply

public final void multiply(float theValue,
                           TransformMatrix4f theMatrix4f)

multiply

public final void multiply(TransformMatrix4f theMatrix4f)

transform

public final void transform(Vector3f theResult)

toArray

public final float[] toArray()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)