Class: Matrix3

Members Show Inherited

Methods Show Inherited

copy(m){Matrix3}

math/Matrix3.js, line 38

Copy the values from one mat3 to this

Name	Type	Description
m	Matrix3	the source matrix

Returns:

Type	Description
Matrix3	this

clone(){Matrix3}

math/Matrix3.js, line 46

Creates a new mat3 initialized with values from this matrix

Returns:

Type	Description
Matrix3	a new Matrix3

toArray(array, offset){Array}

math/Matrix3.js, line 57

转换到数组

Name	Type	Default	Description
array	Array.<number> | TypedArray	[]	optional 数组
offset	Number	0	optional 数组偏移值

Returns:

Type	Description
Array

fromArray(array, offset){Matrix3}

math/Matrix3.js, line 70

从数组赋值

Name	Type	Default	Description
array	Array.<number> | TypedArray		数组
offset	Number	0	optional 数组偏移值

Returns:

Type	Description
Matrix3	this

set(m00, m01, m02, m10, m11, m12, m20, m21, m22){Matrix3}

math/Matrix3.js, line 90

Set the components of a mat3 to the given values

Name	Type	Description
m00	Number
m01	Number
m02	Number
m10	Number
m11	Number
m12	Number
m20	Number
m21	Number
m22	Number

Returns:

Type	Description
Matrix3	this

identity(){Matrix3}

math/Matrix3.js, line 98

Set this to the identity matrix

Returns:

Type	Description
Matrix3	this

transpose(){Matrix3}

math/Matrix3.js, line 106

Transpose the values of this

Returns:

Type	Description
Matrix3	this

invert(m){Matrix3}

math/Matrix3.js, line 115

invert a matrix

Name	Type	Default	Description
m	Matrix3	this	optional

Returns:

Type	Description
Matrix3	this

adjoint(m){Matrix3}

math/Matrix3.js, line 124

Calculates the adjugate of a mat3

Name	Type	Default	Description
m	Matrix3	this	optional

Returns:

Type	Description
Matrix3	this

determinant(){Number}

math/Matrix3.js, line 132

Calculates the determinant of this

Returns:

Type	Description
Number

multiply(a, b){Matrix3}

math/Matrix3.js, line 141

Multiplies two matrix3's

Name	Type	Description
a	Matrix3
b	Matrix3	optional 如果不传，计算 this 和 a 的乘积

Returns:

Type	Description
Matrix3	this

premultiply(m){Matrix3}

math/Matrix3.js, line 154

左乘

Name	Type	Description
m	Matrix3

Returns:

Type	Description
Matrix3	this

translate(v){Matrix3}

math/Matrix3.js, line 163

Translate this by the given vector

Name	Type	Description
v	Vector2	vector to translate by

Returns:

Type	Description
Matrix3	this

rotate(rad){Matrix3}

math/Matrix3.js, line 172

Rotates this by the given angle

Name	Type	Description
rad	Number	the angle to rotate the matrix by

Returns:

Type	Description
Matrix3	this

scale(v){Matrix3}

math/Matrix3.js, line 181

Scales the mat3 by the dimensions in the given vec2

Name	Type	Description
v	Vector2	the vec2 to scale the matrix by

Returns:

Type	Description
Matrix3	this

fromTranslation(v){Matrix3}

math/Matrix3.js, line 190

Creates a matrix from a vector translation

Name	Type	Description
v	Vector2	Translation vector

Returns:

Type	Description
Matrix3	this

fromRotation(rad){Matrix3}

math/Matrix3.js, line 199

Creates a matrix from a given angle

Name	Type	Description
rad	Number	the angle to rotate the matrix by

Returns:

Type	Description
Matrix3	this

fromScaling(v){Matrix3}

math/Matrix3.js, line 208

Creates a matrix from a vector scaling

Name	Type	Description
v	Vector2	Scaling vector

Returns:

Type	Description
Matrix3	this

fromQuat(q){Matrix3}

math/Matrix3.js, line 217

Calculates a 3x3 matrix from the given quaternion

Name	Type	Description
q	Quaternion	Quaternion to create matrix from

Returns:

Type	Description
Matrix3	this

normalFromMat4(m){Matrix3}

math/Matrix3.js, line 226

Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix

Name	Type	Description
m	Matrix4	Mat4 to derive the normal matrix from

Returns:

Type	Description
Matrix3	this

fromMat4(m){Matrix3}

math/Matrix3.js, line 235

Copies the upper-left 3x3 values into the given mat3.

Name	Type	Description
m	Matrix4	the source 4x4 matrix

Returns:

Type	Description
Matrix3	this

frob(){Number}

math/Matrix3.js, line 243

Returns Frobenius norm of this

Returns:

Type	Description
Number	Frobenius norm

add(a, b){Matrix4}

math/Matrix3.js, line 252

Adds two mat3's

Name	Type	Description
a	Matrix3
b	Matrix3	optional 如果不传，计算 this 和 a 的和

Returns:

Type	Description
Matrix4	this

subtract(a, b){Matrix4}

math/Matrix3.js, line 266

Subtracts matrix b from matrix a

Name	Type	Description
a	Matrix3
b	Matrix3	optional 如果不传，计算 this 和 a 的差

Returns:

Type	Description
Matrix4	this

exactEquals(a, b){Boolean}

math/Matrix3.js, line 280

Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)

Name	Type	Description
a	Matrix3
b	Matrix3	optional 如果不传，比较 this 和 a 是否相等

Returns:

Type	Description
Boolean

equals(a, b){Boolean}

math/Matrix3.js, line 293

Returns whether or not the matrices have approximately the same elements in the same position.

Name	Type	Description
a	Matrix3
b	Matrix3	optional 如果不传，比较 this 和 a 是否近似相等

Returns:

Type	Description
Boolean

fromRotationTranslationScale(r, x, y, scaleX, scaleY){Matrix3}

math/Matrix3.js, line 310

fromRotationTranslationScale

Name	Type	Description
r	Number	rad angle
x	Number
y	Number
scaleX	Number
scaleY	Number

Returns:

Type	Description
Matrix3

sub()

math/Matrix3.js, line 323

Alias for Matrix3#subtract

mul()

math/Matrix3.js, line 329

Alias for Matrix3#multiply