Package com.google.ar.sceneform.math

Class Matrix

java.lang.Object

com.google.ar.sceneform.math.Matrix

public class Matrix
extends java.lang.Object

4x4 Matrix representing translation, scale, and rotation. Column major, right handed [0, 4, 8, 12] [1, 5, 9, 13] [2, 6, 10, 14] [3, 7, 11, 15]

Field Summary

Fields

Modifier and Type	Field	Description
float[]	data
static float[]	IDENTITY_DATA

Constructor Summary

Constructors

Constructor	Description
Matrix()
Matrix(float[] data)

Method Summary

Modifier and Type	Method	Description
void	decomposeRotation(Vector3 decomposedScale, Matrix destMatrix)
void	decomposeRotation(Vector3 decomposedScale, Quaternion destRotation)
void	decomposeScale(Vector3 destScale)
void	decomposeTranslation(Vector3 destTranslation)
static boolean	equals(Matrix lhs, Matrix rhs)	Compares Matrix values
void	extractQuaternion(Quaternion destQuaternion)
static boolean	invert(Matrix matrix, Matrix dest)
void	makeRotation(Quaternion rotation)
void	makeScale(float scale)
void	makeScale(Vector3 scale)
void	makeTranslation(Vector3 translation)
void	makeTrs(Vector3 translation, Quaternion rotation, Vector3 scale)
static void	multiply(Matrix lhs, Matrix rhs, Matrix dest)
void	set(float[] data)
void	set(Matrix m)
void	setTranslation(Vector3 translation)
Vector3	transformDirection(Vector3 vector)	Transforms a direction by ignoring any translation.
Vector3	transformPoint(Vector3 vector)

Methods inherited from class java.lang.Object

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

Field Detail

IDENTITY_DATA

public static final float[] IDENTITY_DATA

data

public float[] data

Constructor Detail

Matrix

public Matrix()

Matrix

public Matrix(float[] data)

Method Detail

set

public void set(float[] data)

set

public void set(Matrix m)

decomposeTranslation

public void decomposeTranslation(Vector3 destTranslation)

decomposeScale

public void decomposeScale(Vector3 destScale)

decomposeRotation

public void decomposeRotation(Vector3 decomposedScale,
                              Quaternion destRotation)

decomposeRotation

public void decomposeRotation(Vector3 decomposedScale,
                              Matrix destMatrix)

extractQuaternion

public void extractQuaternion(Quaternion destQuaternion)

makeTranslation

public void makeTranslation(Vector3 translation)

setTranslation

public void setTranslation(Vector3 translation)

makeRotation

public void makeRotation(Quaternion rotation)

makeScale

public void makeScale(float scale)

makeScale

public void makeScale(Vector3 scale)

makeTrs

public void makeTrs(Vector3 translation,
                    Quaternion rotation,
                    Vector3 scale)

multiply

public static void multiply(Matrix lhs,
                            Matrix rhs,
                            Matrix dest)

transformPoint

public Vector3 transformPoint(Vector3 vector)

transformDirection

public Vector3 transformDirection(Vector3 vector)

Transforms a direction by ignoring any translation.

If the matrix is uniformly (positively) scaled, then the resulting direction will be correct but scaled by the same factor. If a unit direction is required then the result should be normalized.

If the scale is non-uniform or negative then the result vector will be distorted. In this case the matrix used should be the inverse transpose of the incoming matrix.

invert

public static boolean invert(Matrix matrix,
                             Matrix dest)

equals

public static boolean equals(Matrix lhs,
                             Matrix rhs)

Compares Matrix values