melonJS Class: Matrix2d

new Matrix2d(mat2d)

a Matrix2d Object.
the identity matrix and parameters position :

Parameters:

Name	Type	Argument	Description
`mat2d`	me.Matrix2d	<optional>	An instance of me.Matrix2d to copy from
`arguments...`	Array.<Number>	<optional>	Matrix elements. See me.Matrix2d.set

Source:: matrix2.js, line 19

Extends

me.Object

Methods

<static> clone() → {me.Matrix2d}

Clone the Matrix

Source:: matrix2.js, line 380

Returns:

Type: me.Matrix2d

<static> copy(m) → {me.Matrix2d}

Copies over the values from another me.Matrix2d.

Parameters:

Name	Type	Description
`m`	me.Matrix2d	the matrix object to copy from

Source:: matrix2.js, line 100

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> identity() → {me.Matrix2d}

reset the transformation matrix to the identity matrix (no transformation).
the identity matrix and parameters position :

Source:: matrix2.js, line 38

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> invert() → {me.Matrix2d}

invert this matrix, causing it to apply the opposite transformation.

Source:: matrix2.js, line 168

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> isIdentity() → {Boolean}

returns true if the matrix is an identity matrix.

Source:: matrix2.js, line 357

Returns:

Type: Boolean

<static> multiply(b) → {me.Matrix2d}

multiply both matrix

Parameters:

Name	Type	Description
`b`	me.Matrix2d	Other matrix

Source:: matrix2.js, line 113

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> multiplyVector(vector) → {me.Vector2d}

Transforms the given vector according to this matrix.

Parameters:

Name	Type	Description
`vector`	me.Vector2d	the vector object to be transformed

Source:: matrix2.js, line 203

Returns:

result vector object. Useful for chaining method calls.

Type: me.Vector2d

<static> multiplyVector(vector) → {me.Vector2d}

Transforms the given vector using the inverted current matrix.

Parameters:

Name	Type	Description
`vector`	me.Vector2d	the vector object to be transformed

Source:: matrix2.js, line 222

Returns:

result vector object. Useful for chaining method calls.

Type: me.Vector2d

<static> rotate(angle) → {me.Matrix2d}

rotate the matrix (counter-clockwise) by the specified angle (in radians).

Parameters:

Name	Type	Description
`angle`	Number	Rotation angle in radians.

Source:: matrix2.js, line 301

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> scale(x, y) → {me.Matrix2d}

scale the matrix

Parameters:

Name	Type	Argument	Default	Description
`x`	Number			a number representing the abscissa of the scaling vector.
`y`	Number	<optional>	x	a number representing the ordinate of the scaling vector.

Source:: matrix2.js, line 243

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> scaleV(vector) → {me.Matrix2d}

adds a 2D scaling transformation.

Parameters:

Name	Type	Description
`vector`	me.Vector2d	scaling vector

Source:: matrix2.js, line 265

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> scaleX(x) → {me.Matrix2d}

specifies a 2D scale operation using the [sx, 1] scaling vector

Parameters:

Name	Type	Description
`x`	Number	x scaling vector

Source:: matrix2.js, line 277

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> scaleY(y) → {me.Matrix2d}

specifies a 2D scale operation using the [1,sy] scaling vector

Parameters:

Name	Type	Description
`y`	Number	y scaling vector

Source:: matrix2.js, line 289

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> setTransform(a, b, c, d, e, f, g, h, i) → {me.Matrix2d}

set the matrix to the specified value

Parameters:

Name	Type	Argument	Default
`a`	Number
`b`	Number
`c`	Number
`d`	Number
`e`	Number
`f`	Number
`g`	Number	<optional>	0
`h`	Number	<optional>	0
`i`	Number	<optional>	1

Source:: matrix2.js, line 56

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> toString() → {String}

convert the object to a string representation

Source:: matrix2.js, line 391

Returns:

Type: String

<static> translate(x, y) → {me.Matrix2d}

translate the matrix position on the horizontal and vertical axis

Parameters:

Name	Type	Description
`x`	Number	the x coordindates to translate the matrix by
`y`	Number	the y coordindates to translate the matrix by

Source:: matrix2.js, line 327

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> translateV(v) → {me.Matrix2d}

translate the matrix by a vector on the horizontal and vertical axis

Parameters:

Name	Type	Description
`v`	me.Vector2d	the vector to translate the matrix by

Source:: matrix2.js, line 345

Returns:

Reference to this object for method chaining

Type: me.Matrix2d

<static> transpose() → {me.Matrix2d}

Transpose the value of this matrix.

Source:: matrix2.js, line 145

Returns:

Reference to this object for method chaining

Type: me.Matrix2d