Class Matrix4

A 4x4 matrix, mostly used as transformation matrix for 3d calculations.

Class Overview

Matrix4(bMakeIdentity)

A 4x4 matrix. Mostly used as transformation matrix for 3d calculations. The matrix is a D3D style matrix, row major with translations in the 4th row.

Parameters:
bMakeIdentity: {Boolean} If set to true, the matrix will initially have stored the identity matrix.

Method Summary
Method Attributes	Method Name and Description
	asArray() Returns the content of this matrix as array
	buildCameraLookAtMatrixLH(position, target, upVector) Builds a left-handed look-at matrix.
	buildProjectionMatrixPerspectiveFovLH(fieldOfViewRadians, aspectRatio, zNear, zFar) Builds a left-handed perspective projection matrix based on a field of view.
	clone() Creates a clone of this matrix
	copyTo(mat) Copies the content of this matrix to a target matrix
	equals(mat) Returns if this matrix equals another matrix, uses Core.equals as comparison operator.
	getInverse(out) Copies the inverse of this matrix into the output matrix, returns true succcessful.
	getRotatedVect(v) Returns a new vector, rotated from the input vector by this matrix
	getRotationDegrees() Returns the rotation, as set by setRotation().
	getScale() Returns the scle stored in the matrix as 3d vector
	getTransformedVect(v) returns a new transformed vector from the input vector
	getTranslatedVect(v) Translates a input vector by this matrix and returns it as new vector.
	getTranslation() Returns the translation stored in the matrix as 3d vector
	isIdentity() Returns if this matrix is the identity matrix
	isTranslateOnly() returns if only the translation is set in the matrix
	makeIdentity() Makes this matrix the identitiy matrix
	makeInverse() Inverts this matrix, returns true if successful
	multiply(m2) Multiplies this matrix with another matrix, returns the result as a new matrix.
	multiplyWith1x4Matrix(v) Multiplies this matrix with a 4D Vector (expects components X, Y, Z and W), result is stored in the input vector
	rotateVect(v) Rotates a 3d vector by this matrix.
	rotateVect2(out, inp) Rotates an input vector and stores the result in the output paramter
	setByIndex(i, n) Sets a value of the matrix by index
	setRotationDegrees(v) Make a rotation matrix from Euler angles.
	setRotationRadians(rotation) Make a rotation matrix from Euler angles.
	setScale(v) Sets the scale of the matrix
	setScaleXYZ(x, y, z) Sets the scale of the matrix
	setTranslation(v) Set the translation of the current matrix.
	transformBoxEx(box) Transforms a 3d box
	transformPlane(plane) Transforms a 3d plane by this matrix
	transformVect(v) Transforms the input vector by this matrix
	transformVect2(out, inp) Transforms the input vector by this matrix and stores the result in the ouput parameter
	translateVect(v) Translates a vector by this matrix

Method Detail

{Array} asArray()

Returns the content of this matrix as array

Returns:: {Array} array of this matrix.

buildCameraLookAtMatrixLH(position, target, upVector)

Builds a left-handed look-at matrix.

Parameters:
position
target
upVector

buildProjectionMatrixPerspectiveFovLH(fieldOfViewRadians, aspectRatio, zNear, zFar)

Builds a left-handed perspective projection matrix based on a field of view.

Parameters:
fieldOfViewRadians
aspectRatio
zNear
zFar

clone()

Creates a clone of this matrix

copyTo(mat)

Copies the content of this matrix to a target matrix

Parameters:
mat

equals(mat)

Returns if this matrix equals another matrix, uses Core.equals as comparison operator.

Parameters:
mat

getInverse(out)

Copies the inverse of this matrix into the output matrix, returns true succcessful.

Parameters:
out

getRotatedVect(v)

Returns a new vector, rotated from the input vector by this matrix

Parameters:
v

{Vect3d} getRotationDegrees()

Returns the rotation, as set by setRotation(). Returns a rotation that is equivalent to that set by setRotationDegrees().

Returns:: {Vect3d} rotation vector

{Vect3d} getScale()

Returns the scle stored in the matrix as 3d vector

Returns:: {Vect3d} scale vector

getTransformedVect(v)

returns a new transformed vector from the input vector

Parameters:
v

getTranslatedVect(v)

Translates a input vector by this matrix and returns it as new vector.

Parameters:
v

{Vect3d} getTranslation()

Returns the translation stored in the matrix as 3d vector

Returns:: {Vect3d} translation vector

isIdentity()

Returns if this matrix is the identity matrix

isTranslateOnly()

returns if only the translation is set in the matrix

makeIdentity()

Makes this matrix the identitiy matrix

makeInverse()

Inverts this matrix, returns true if successful

multiply(m2)

Multiplies this matrix with another matrix, returns the result as a new matrix.

Parameters:
m2

multiplyWith1x4Matrix(v)

Multiplies this matrix with a 4D Vector (expects components X, Y, Z and W), result is stored in the input vector

Parameters:
v

rotateVect(v)

Rotates a 3d vector by this matrix.

Parameters:
v

rotateVect2(out, inp)

Rotates an input vector and stores the result in the output paramter

Parameters:
out
inp

setByIndex(i, n)

Sets a value of the matrix by index

Parameters:
i: Index in the matrix, a value between 0 and 15
n: Value to set

setRotationDegrees(v)

Make a rotation matrix from Euler angles. The 4th row and column are unmodified.

Parameters:
v: {Vect3d} rotation vector

setRotationRadians(rotation)

Make a rotation matrix from Euler angles. The 4th row and column are unmodified.

Parameters:
rotation: {Vect3d} rotation vector

setScale(v)

Sets the scale of the matrix

Parameters:
v: {Vect3d} translation vector

setScaleXYZ(x, y, z)

Sets the scale of the matrix

Parameters:
x
y
z

setTranslation(v)

Set the translation of the current matrix. Will erase any previous values.

Parameters:
v: {Vect3d} translation vector

transformBoxEx(box)

Transforms a 3d box

Parameters:
box: {Box3d}

transformPlane(plane)

Transforms a 3d plane by this matrix

Parameters:
plane

transformVect(v)

Transforms the input vector by this matrix

Parameters:
v

transformVect2(out, inp)

Transforms the input vector by this matrix and stores the result in the ouput parameter

Parameters:
out
inp

translateVect(v)

Translates a vector by this matrix

Parameters:
v

Documentation

Classes

Class Matrix4