Methods
clone() → {ALMath.Matrix4}
Function clone a matrix.
Returns:
- A copy of this.
- Type
- ALMath.Matrix4
divideByScalar(n) → {ALMath.Vector4}
Function to divide by scalar n.
Parameters:
Name | Type | Description |
---|---|---|
n |
number | Scalar to divide. |
Throws:
Division by zero.
Returns:
- this that is the division between this and scalar n.
- Type
- ALMath.Vector4
equals() → {boolean}
Function compare two matrices.
Returns:
- true if this and v are equals, false otherwise.
- Type
- boolean
getInverse() → {ALMath.Matrix4}
Function to compute matrix inverse.
Returns:
- this that is the invert matrix.
- Type
- ALMath.Matrix4
getNormalMatrix() → {ALMath.Matrix4}
Function to get a matrix that can be used to transform normals on the shaders.
Returns:
- Matrix that can be used in the shader to transform normals.
- Type
- ALMath.Matrix4
identity() → {ALMath.Matrix4}
Function to set this matrix to the identity matrix.
Returns:
Identity Matrix.
- Type
- ALMath.Matrix4
lookAt() → {ALMath.Matrix4}
Function to create a lookAt matrix.
Returns:
- A lookAt matrix.
- Type
- ALMath.Matrix4
multiplyByScalar(n) → {ALMath.Matrix4}
Function to multiply by scalar n.
Parameters:
Name | Type | Description |
---|---|---|
n |
number | Scalar to multiply. |
Returns:
- this that is the multiplication between this and scalar n.
- Type
- ALMath.Matrix4
multiplyByVector(v) → {ALMath.Vector3}
Function to multiply by vector v.
Parameters:
Name | Type | Description |
---|---|---|
v |
ALMath.Vector3 | Vector to multiply. |
Returns:
- A new vector which is the multiplication between the matrix this and the vector v.
- Type
- ALMath.Vector3
multiplyByVector4(v) → {ALMath.Vector4}
Function to multiply by vector v.
Parameters:
Name | Type | Description |
---|---|---|
v |
ALMath.Vector4 | Vector to multiply. |
Returns:
- A new vector which is the multiplication between the matrix this and the vector v.
- Type
- ALMath.Vector4
orthographicProjection() → {ALMath.Matrix4}
Function to create a orthographic projection matrix.
Returns:
- A orthographic projection matrix.
- Type
- ALMath.Matrix4
perspectiveProjection() → {ALMath.Matrix4}
Function to create a perspective projection matrix.
Returns:
- A perspective projection matrix.
- Type
- ALMath.Matrix4
rotate(x, y, z) → {ALMath.Matrix4}
Function to create a rotation matrix on (X,Y,Z) axis.
Parameters:
Name | Type | Description |
---|---|---|
x |
number | rotation angle in degrees on X axis. |
y |
number | rotation angle in degrees on Y axis. |
z |
number | rotation angle in degrees on Z axis. |
Returns:
- A rotation matrix on (X,Y,Z) axis.
- Type
- ALMath.Matrix4
rotateX(theta) → {ALMath.Matrix4}
Function to create a rotation matrix on X axis.
Parameters:
Name | Type | Description |
---|---|---|
theta |
number | rotation angle in degrees on X axis. |
Returns:
- A rotation matrix on X axis.
- Type
- ALMath.Matrix4
rotateY(theta) → {ALMath.Matrix4}
Function to create a rotation matrix on Y axis.
Parameters:
Name | Type | Description |
---|---|---|
theta |
number | rotation angle in degrees on Y axis. |
Returns:
- A rotation matrix on Y axis.
- Type
- ALMath.Matrix4
rotateZ(theta) → {ALMath.Matrix4}
Function to create a rotation matrix on Z axis.
Parameters:
Name | Type | Description |
---|---|---|
theta |
number | rotation angle in degrees on Z axis. |
Returns:
- A rotation matrix on Z axis.
- Type
- ALMath.Matrix4
scale(x, y, z) → {ALMath.Matrix4}
Function to create a scale matrix.
Parameters:
Name | Type | Description |
---|---|---|
x |
number | scale factor on X axis. |
y |
number | scale factor on Y axis. |
z |
number | scale factor on Z axis. |
Returns:
- A scale matrix.
- Type
- ALMath.Matrix4
set(n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44)
Function to set each component.
Set the component in row major order.
Parameters:
Name | Type | Description |
---|---|---|
n11 |
number | component for row 1 column 1. |
n12 |
number | component for row 1 column 2. |
n13 |
number | component for row 1 column 3. |
n14 |
number | component for row 1 column 4. |
n21 |
number | component for row 2 column 1. |
n22 |
number | component for row 2 column 2. |
n23 |
number | component for row 2 column 3. |
n24 |
number | component for row 2 column 4. |
n31 |
number | component for row 3 column 1. |
n32 |
number | component for row 3 column 2. |
n33 |
number | component for row 3 column 3. |
n34 |
number | component for row 3 column 4. |
n41 |
number | component for row 4 column 1. |
n42 |
number | component for row 4 column 2. |
n43 |
number | component for row 4 column 3. |
n44 |
number | component for row 4 column 4. |
transformPoint(v) → {ALMath.Vector4}
Function to transform a vector v by matrix this.
The difference between transformPoint and multiplyByVector is that transformPoint do the perspective division
Parameters:
Name | Type | Description |
---|---|---|
v |
ALMath.Vector4 | Vector to multiply. |
Returns:
- A new vector which is the multiplication between the matrix this and the vector v.
- Type
- ALMath.Vector4
translate(x, y, z) → {ALMath.Matrix4}
Function to create a translation matrix.
Parameters:
Name | Type | Description |
---|---|---|
x |
number | X component of translation matrix. |
y |
number | Y component of translation matrix. |
z |
number | Z component of translation matrix. |
Returns:
- A translation matrix.
- Type
- ALMath.Matrix4
transpose() → {ALMath.Matrix4}
Function to transpose matrix.
Returns:
- this that is the transpose matrix.
- Type
- ALMath.Matrix4