Matrix Class Reference
[Core]

#include <lvt/Vec.h>

List of all members.

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Detailed Description

A 4x4 homogeneous matrix.

The Matrix class encapsulates a 4x4 homogeneous matrix. The semantics of vector multiplication is that of post-multiplication by column vectors. However, the matrix data is stored internally in column-major format, so that a matrix can be passed directly to a call to e.g. glMultMatrix(). The general rule of thumb is: don't manually modify the values in a Matrix, but rather rely on the arithmetic operators.

Public Member Functions
Matrix &	LoadIdentity ()
	Sets the matrix to the identity matrix.
	Matrix (const Vec &u, const Vec &v, const Vec &w)
	Constructs a new matrix with column entries equal to u, v, w.
	Matrix ()
	Default constructor.
	operator float * ()
	Converts the matrix to a float array.
Matrix	Transpose ()
	Returns a new Matrix that is the transpose of the current Matrix.
float &	operator() (int r, int c)
	Returns a reference to the element in the rth row and cth column.
float &	operator[] (int i)
	Returns a reference to the ith element of the Matrix.

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Constructor & Destructor Documentation

Matrix (   )  [inline]

Default constructor. Sets the Matrix to the identity.

Matrix (  const Vec &  u, const Vec &  v, const Vec &  w )  [inline]

Constructs a new matrix with column entries equal to u, v, w.

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Member Function Documentation

Matrix& LoadIdentity (   )  [inline]

Sets the matrix to the identity matrix.

operator float * (   )  [inline]

Converts the matrix to a float array. This is intended for use in the gl*Matrix() family of functions.

float& operator() (  int  r, int  c )  [inline]

Returns a reference to the element in the rth row and cth column.

float& operator[] (  int  i  )  [inline]

Returns a reference to the ith element of the Matrix. Note that since the internal format of the Matrix is column-major, the element returned might not be the one intended. Consider using the () operator instead of this operator.

Matrix Transpose (   )  [inline]

Returns a new Matrix that is the transpose of the current Matrix.

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