ARSTD::Matrix44 Class Reference

List of all members.

Public Member Functions

 Matrix44 ()
 Matrix44 (const Vector3 &vecXAxis, const Vector3 &vecYAxis, const Vector3 &vecZAxis, const Vector3 &vecTranslation)
void orthoInvert ()

Related Functions

(Note that these are not member functions.)

const Matrix44 operator * (const Matrix44 &lhs, const Matrix44 &rhs)
const Vector3 operator * (const Matrix44 &lhs, const Vector3 &rhs)

Detailed Description

This class represents a 4x4 Matrix


Constructor & Destructor Documentation

ARSTD::Matrix44::Matrix44 (  ) 

Constructor, which is as default not initialised.

ARSTD::Matrix44::Matrix44 ( const Vector3 vecXAxis,
const Vector3 vecYAxis,
const Vector3 vecZAxis,
const Vector3 vecTranslation 
)

Initialises the matrix with 4 three-component vectors, one for each column. The first three represent the x/y/z axis of the rotational part and the fourth represents the translation part. The forth row of the matrix is set to (0 0 0 1).

Parameters:
vecXAxis The x-axis of the rotational part.
vecYAxis The y-axis of the rotational part.
vecZAxis The z-axis of the rotational part.
vecTranslation The translation that is set to the matrix.


Member Function Documentation

void ARSTD::Matrix44::orthoInvert (  ) 

Inverts the matrix if it is orthonormal


Friends And Related Function Documentation

const Matrix44 operator * ( const Matrix44 lhs,
const Matrix44 rhs 
) [related]

Multiplies the matrix with another one. The matrix on the right side of the operator is multiplied onto the left one.

Parameters:
lhs The first matrix.
rhs The second matrix.
Returns:
The result of the operation.

const Vector3 operator * ( const Matrix44 lhs,
const Vector3 rhs 
) [related]

Multiplies a 3 component vector with the matrix. Because it's normally not possible to multiply a 4x4 matrix with a 3-component vector it is assumed that the 4th component of the vector (homogenous component) is 1, so the transform include rotation and translation of the vector.

Parameters:
lhs The matrix.
rhs The vector.
Returns:
The transformed vector.


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