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MMatrix Class Reference

The (Mathematical) Matrix Class. More...

#include <mmatrix.h>

List of all members.

Public Methods
	MMatrix (int m = 1, int n = 1)
	~MMatrix ()
void	set (int m, int n, GLfloat val)
GLfloat	get (int m, int n)
MMatrix	trans ()
MMatrix	homogen ()
MMatrix	reduce ()
MMatrix	operator= (MMatrix m)
MMatrix	operator= (Vector v)
MMatrix	operator+ (MMatrix m)
MMatrix	operator- (MMatrix m)
MMatrix	operator * (MMatrix m)
Public Attributes
int	getM
int	getN
Private Attributes
int	dimM
int	dimN
GLfloat	mat [MAX_MMATRIX_M][MAX_MMATRIX_N]

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Detailed Description

The (Mathematical) Matrix Class.

Author(s):

StonedBones

Date:

310100

Definition at line 15 of file mmatrix.h.

{
    public:
    MMatrix (int m = 1, int n = 1);     // create a mathematical mxn matrix (note: m = y, n = x !)
    ~MMatrix ();

    int getM;
    int getN;

    void    set (int m, int n, GLfloat val) ;
    GLfloat get (int m, int n);

    MMatrix trans ();       // I don't know the english translations of these operations
    MMatrix homogen ();     // in german: Transponierte der Matrix, Homogenisierte Matrix und wieder reduzierte Matrix
    MMatrix reduce ();

    MMatrix operator= (MMatrix m);
    MMatrix operator= (Vector v);
    MMatrix operator+ (MMatrix m);
    MMatrix operator- (MMatrix m);
    MMatrix operator* (MMatrix m);

    private:
    int dimM, dimN;

    GLfloat mat[MAX_MMATRIX_M][MAX_MMATRIX_N];
}

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Constructor & Destructor Documentation

MMatrix::MMatrix ( int m = 1, int n = 1)

Definition at line 3 of file mmatrix.cpp.

{
    if ((dimN > 4) || (dimM > 4)) {
    dimN = 0;
    dimM = 0;
    } else {
        dimN = n;
    dimM = m;
    };
    
    for (int x = 1; x <= MAX_MMATRIX_M; x++) {
    for (int y = 1; y <= MAX_MMATRIX_N; y++) {
        mat[x][y] = 0;
    };
    };
    
    return;
}

MMatrix::~MMatrix ()

Definition at line 21 of file mmatrix.cpp.

{
}

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Member Function Documentation

float MMatrix::get ( int m, int n)

Definition at line 38 of file mmatrix.cpp.

{
    if ((m < 1) || (m > MAX_MMATRIX_M) || (n < 1) || (y > MAX_MMATRIX_N)) return 0.0;
    
    return mat[m][n];
}

MMatrix MMatrix::homogen ()

Definition at line 125 of file mmatrix.cpp.

{
    if ((dimN < MAX_MMATRIX_N) && (dimM < MAX_MMATRIX_M)) {
    MMatrix tmp (dimM + 1, dimN + 1);
    
    for (int x = 1; x <= dimM; x++) {
        for (int y = 1; y <= dimN; y++) {
        tmp.set (x, y, mat[x][y]);
        };
    };
    
    tmp.set (dimM +1, dimN +1, 1);
    return tmp;
    } else {
    MMatrix tmp;
    return tmp;
    };
}

MMatrix MMatrix::operator * ( MMatrix m)

Definition at line 84 of file mmatrix.cpp.

{
    MMatrix tmp(m.getN (), dimM);
    float      f;
    
    if (dimN != m.getM ()) return tmp;
    
    for (int x = 1; x <= m.getM (); x ++) {
    for (int y = 1; y <= dimN; y++) {
        f = 0;
        for (int z = 1; z <= dimM; z++) {
        f += mat[z][y] * m.get (x, z);
        };
                
        tmp.set (x, y, f);
    };
    };
    
    return tmp;
}

MMatrix MMatrix::operator+ ( MMatrix m)

Definition at line 56 of file mmatrix.cpp.

{
    MMatrix tmp(dimM, dimN);
    
    if ((m.getN () != dimN) || (m.getM () != dimM)) return tmp;
    
    for (int x = 1; x <= dimM; x ++) {
    for (int y = 1; y <= dimN; y++) {
        tmp.set (x, y, (mat[x][y] + m.get (x, y)));
    };
    };
    
    return tmp;
}

MMatrix MMatrix::operator- ( MMatrix m)

Definition at line 70 of file mmatrix.cpp.

{
    MMatrix tmp(dimM, dimN);
    
    if ((m.getN () != dimN) || (m.getM () != dimM)) return tmp;
    
    for (int x = 1; x <= dimM; x ++) {
    for (int y = 1; y <= dimN; y++) {
        tmp.set (x, y, (mat[x][y] - m.get (x, y)));
    };
    };
    
    return tmp;
}

void MMatrix::operator= ( Vector v)

Definition at line 116 of file mmatrix.cpp.

{
    dimM = 1;
    dimN = 3;

    mat[1][1] = v.x;
    mat[2][1] = v.y;
    mat[3][1] = v.z;
}

MMatrix MMatrix::operator= ( MMatrix m)

MMatrix MMatrix::reduce ()

Definition at line 143 of file mmatrix.cpp.

{
    if ((dimM > 1) && (dimN > 1)) {
    MMatrix tmp (dimM - 1, dimN - 1);
    
    for (int x = 1; x < dimM; x++) {
        for (int y = 1; y < dimN; y++) {
        tmp.set (x, y, mat[x][y]);
        };
    };
    
    return tmp;
    } else {
    MMatrix tmp;
    return tmp;
    };
}

void MMatrix::set ( int m, int n, GLfloat val)

MMatrix MMatrix::trans ()

Definition at line 44 of file mmatrix.cpp.

{
    MMatrix tmp(dimN, dimM);
    
    for (int x = 1; x <= dimN; x++) {
    for (int y = 1; y <= dimM; y++) {
        tmp.set (x, y, mat[y][x]);
    };
    };
    
    return tmp;
}

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Member Data Documentation

int MMatrix::dimM [private]

Definition at line 37 of file mmatrix.h.

int MMatrix::dimN [private]

Definition at line 37 of file mmatrix.h.

int MMatrix::getM

Definition at line 20 of file mmatrix.h.

int MMatrix::getN

Definition at line 21 of file mmatrix.h.

GLfloat MMatrix::mat[MAX_MMATRIX_M][MAX_MMATRIX_N] [private]

Definition at line 39 of file mmatrix.h.

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The documentation for this class was generated from the following files:

• mmatrix.h
• mmatrix.cpp

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