Class MatrixUtil

java.lang.Object

com.mojang.math.MatrixUtil

public class MatrixUtil
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final float	G
private static final GivensParameters	PI_4

Constructor Summary

Constructors

Modifier	Constructor	Description
private	MatrixUtil()

Method Summary

Modifier and Type	Method	Description
private static GivensParameters	approxGivensQuat(float a11, float a12, float a22)
static boolean	checkProperty(Matrix4fc matrix, int property)
static boolean	checkPropertyRaw(Matrix4fc matrix, int property)
static void	eigenvalueJacobi(Matrix3f inOut, int steps, Quaternionf result)
static boolean	isIdentity(Matrix4fc matrix)
static boolean	isPureTranslation(Matrix4fc matrix)
static Matrix4f	mulComponentWise(Matrix4f m, float factor)
private static GivensParameters	qrGivensQuat(float a1, float a2)
private static void	similarityTransform(Matrix3f a, Matrix3f q)
private static void	stepJacobi(Matrix3f m, Matrix3f tmpMat, Quaternionf tmpQ, Quaternionf output)
private static void	svdDecompose(Matrix3f input, Quaternionf u, Vector3f s, Quaternionf v)
static void	svdDecompose(Matrix4fc input, Vector3f t, Quaternionf u, Vector3f s, Quaternionf v)

Methods inherited from class Object

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

Field Details

G

private static final float G

PI_4

private static final GivensParameters PI_4

Constructor Details

MatrixUtil

private MatrixUtil()

Method Details

mulComponentWise

public static Matrix4f mulComponentWise(Matrix4f m,
 float factor)

approxGivensQuat

private static GivensParameters approxGivensQuat(float a11,
 float a12,
 float a22)

qrGivensQuat

private static GivensParameters qrGivensQuat(float a1,
 float a2)

similarityTransform

private static void similarityTransform(Matrix3f a,
 Matrix3f q)

stepJacobi

private static void stepJacobi(Matrix3f m,
 Matrix3f tmpMat,
 Quaternionf tmpQ,
 Quaternionf output)

eigenvalueJacobi

public static void eigenvalueJacobi(Matrix3f inOut,
 int steps,
 Quaternionf result)

svdDecompose

public static void svdDecompose(Matrix4fc input,
 Vector3f t,
 Quaternionf u,
 Vector3f s,
 Quaternionf v)

svdDecompose

private static void svdDecompose(Matrix3f input,
 Quaternionf u,
 Vector3f s,
 Quaternionf v)

checkPropertyRaw

public static boolean checkPropertyRaw(Matrix4fc matrix,
 int property)

checkProperty

public static boolean checkProperty(Matrix4fc matrix,
 int property)

isIdentity

public static boolean isIdentity(Matrix4fc matrix)

isPureTranslation

public static boolean isPureTranslation(Matrix4fc matrix)