Andrew SaLoutos / Matrix

Matrix Library. v1.6.4 + some changes

Matrix.cpp@4:c0c8f3edd60e, 2011-10-22 (annotated)

Committer:
Yo_Robot
Date:
Sat Oct 22 23:19:51 2011 +0000
Revision:
4:c0c8f3edd60e
Parent:
3:589fb80932b5
Child:
5:a4014ab0a8cf
version 1.6.2  Read Log.c for details

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Yo_Robot 2:493402568a5e 1 /**
Yo_Robot 3:589fb80932b5 2 * @file Matrix.cpp
Yo_Robot 3:589fb80932b5 3 * @author Ernesto Palacios
Yo_Robot 3:589fb80932b5 4 * @brief Source Code for the Matrix Class.
Yo_Robot 2:493402568a5e 5 *
Yo_Robot 2:493402568a5e 6 * Created on September 2011.
Yo_Robot 2:493402568a5e 7 *
Yo_Robot 2:493402568a5e 8 */
Yo_Robot 2:493402568a5e 9
Yo_Robot 0:3abd8c2d7c34 10 #include "mbed.h"
Yo_Robot 0:3abd8c2d7c34 11 #include "Matrix.h"
Yo_Robot 0:3abd8c2d7c34 12
Yo_Robot 1:48f417da268e 13 /// Rows by Cols Matrix Constructor
Yo_Robot 2:493402568a5e 14 Matrix::Matrix(int Rows, int Cols): _nRows(Rows), _nCols(Cols)
Yo_Robot 0:3abd8c2d7c34 15 {
Yo_Robot 1:48f417da268e 16 _matrix.resize(_nRows);
Yo_Robot 1:48f417da268e 17 for( int i = 0; i < _nRows; i++ )
Yo_Robot 1:48f417da268e 18 _matrix[i].resize(_nCols);
Yo_Robot 2:493402568a5e 19
Yo_Robot 2:493402568a5e 20 _pRow = 0;
Yo_Robot 2:493402568a5e 21 _pCol = 0;
Yo_Robot 2:493402568a5e 22
Yo_Robot 2:493402568a5e 23 this->Clear(); //Make all elements zero by default.
Yo_Robot 0:3abd8c2d7c34 24 }
Yo_Robot 0:3abd8c2d7c34 25
Yo_Robot 0:3abd8c2d7c34 26
Yo_Robot 2:493402568a5e 27 /// Copies one matrix into a new one
Yo_Robot 2:493402568a5e 28 Matrix::Matrix(const Matrix& base)
Yo_Robot 0:3abd8c2d7c34 29 {
Yo_Robot 2:493402568a5e 30 _nCols = base._nCols;
Yo_Robot 2:493402568a5e 31 _nRows = base._nRows;
Yo_Robot 2:493402568a5e 32
Yo_Robot 2:493402568a5e 33 _pRow = base._pRow;
Yo_Robot 2:493402568a5e 34 _pCol = base._pCol;
Yo_Robot 2:493402568a5e 35
Yo_Robot 1:48f417da268e 36 _matrix.resize(_nRows);
Yo_Robot 1:48f417da268e 37 for( int i = 0; i < _nRows; i++ )
Yo_Robot 1:48f417da268e 38 _matrix[i].resize(_nCols);
Yo_Robot 0:3abd8c2d7c34 39
Yo_Robot 1:48f417da268e 40 for( int i = 0; i < _nRows; i++ )
Yo_Robot 2:493402568a5e 41 for( int j = 0; j < _nCols; j++ )
Yo_Robot 2:493402568a5e 42 _matrix[i][j] = base._matrix[i][j];
Yo_Robot 0:3abd8c2d7c34 43 }
Yo_Robot 0:3abd8c2d7c34 44
Yo_Robot 0:3abd8c2d7c34 45
Yo_Robot 1:48f417da268e 46 /// Default Constructor
Yo_Robot 2:493402568a5e 47 Matrix::Matrix()
Yo_Robot 0:3abd8c2d7c34 48 {
Yo_Robot 2:493402568a5e 49 _nCols = 0;
Yo_Robot 2:493402568a5e 50 _nRows = 0;
Yo_Robot 1:48f417da268e 51
Yo_Robot 2:493402568a5e 52 _pRow = 0;
Yo_Robot 2:493402568a5e 53 _pCol = 0;
Yo_Robot 4:c0c8f3edd60e 54
Yo_Robot 0:3abd8c2d7c34 55 }
Yo_Robot 0:3abd8c2d7c34 56
Yo_Robot 2:493402568a5e 57 /***********************************************************************/
Yo_Robot 0:3abd8c2d7c34 58
Yo_Robot 1:48f417da268e 59 /// Returns true if matrix is full of zeros
Yo_Robot 1:48f417da268e 60 bool Matrix::isZero()
Yo_Robot 0:3abd8c2d7c34 61 {
Yo_Robot 1:48f417da268e 62 bool zero = false;
Yo_Robot 1:48f417da268e 63 for( int i = 0; i < this->_nRows; i++ )
Yo_Robot 1:48f417da268e 64 for( int j = 0; j < this->_nCols; j++ )
Yo_Robot 2:493402568a5e 65 if( _matrix[i][j] != 0 )
Yo_Robot 1:48f417da268e 66 zero = zero || true;
Yo_Robot 1:48f417da268e 67 return !zero;
Yo_Robot 0:3abd8c2d7c34 68 }
Yo_Robot 0:3abd8c2d7c34 69
Yo_Robot 0:3abd8c2d7c34 70
Yo_Robot 1:48f417da268e 71 /// Returns true if Matrix is Single Row ot Single Column.
Yo_Robot 1:48f417da268e 72 bool Matrix::isVector()
Yo_Robot 0:3abd8c2d7c34 73 {
Yo_Robot 2:493402568a5e 74 if( _nRows == 1 || _nCols == 1 )
Yo_Robot 1:48f417da268e 75 return true;
Yo_Robot 1:48f417da268e 76 else
Yo_Robot 1:48f417da268e 77 return false;
Yo_Robot 0:3abd8c2d7c34 78 }
Yo_Robot 0:3abd8c2d7c34 79
Yo_Robot 1:48f417da268e 80 /*************************************************************************/
Yo_Robot 0:3abd8c2d7c34 81
Yo_Robot 1:48f417da268e 82 /// Returns all elements in Matrix as a single Row vector.
Yo_Robot 2:493402568a5e 83 const Matrix Matrix::ToPackedVector( const Matrix& Mat )
Yo_Robot 0:3abd8c2d7c34 84 {
Yo_Robot 4:c0c8f3edd60e 85
Yo_Robot 2:493402568a5e 86 Matrix Crushed( 1, Mat._nRows * Mat._nCols );
Yo_Robot 0:3abd8c2d7c34 87
Yo_Robot 0:3abd8c2d7c34 88 int cont = 0;
Yo_Robot 2:493402568a5e 89
Yo_Robot 2:493402568a5e 90 for( int i = 0; i < Mat._nRows; i++ )
Yo_Robot 2:493402568a5e 91 for( int j = 0; j < Mat._nCols; j++ )
Yo_Robot 0:3abd8c2d7c34 92 {
Yo_Robot 2:493402568a5e 93 Crushed._matrix[0][cont] = Mat._matrix[i][j];
Yo_Robot 0:3abd8c2d7c34 94 cont++;
Yo_Robot 0:3abd8c2d7c34 95 }
Yo_Robot 0:3abd8c2d7c34 96
Yo_Robot 2:493402568a5e 97 Crushed._pRow = Crushed._nRows;
Yo_Robot 2:493402568a5e 98 Crushed._pCol = Crushed._nCols;
Yo_Robot 2:493402568a5e 99
Yo_Robot 2:493402568a5e 100 return Crushed;
Yo_Robot 0:3abd8c2d7c34 101 }
Yo_Robot 0:3abd8c2d7c34 102
Yo_Robot 2:493402568a5e 103
Yo_Robot 0:3abd8c2d7c34 104
Yo_Robot 2:493402568a5e 105 /// To add (Insert) a Single Row to a Matrix.
Yo_Robot 4:c0c8f3edd60e 106 void Matrix::AddRow(Matrix& Mat, int index)
Yo_Robot 0:3abd8c2d7c34 107 {
Yo_Robot 4:c0c8f3edd60e 108 --index;
Yo_Robot 0:3abd8c2d7c34 109
Yo_Robot 4:c0c8f3edd60e 110 if( index > Mat._nRows + 1)
Yo_Robot 0:3abd8c2d7c34 111 {
Yo_Robot 1:48f417da268e 112 printf("\n\nERROR:\nRow out of Limits @ AddRow()\n");
Yo_Robot 2:493402568a5e 113
Yo_Robot 0:3abd8c2d7c34 114 }else{
Yo_Robot 0:3abd8c2d7c34 115
Yo_Robot 1:48f417da268e 116 Mat._nRows++;
Yo_Robot 1:48f417da268e 117 Mat._matrix.resize( Mat._nRows );
Yo_Robot 1:48f417da268e 118
Yo_Robot 1:48f417da268e 119 Mat._matrix[ Mat._nRows - 1 ].resize( Mat._nCols );
Yo_Robot 1:48f417da268e 120
Yo_Robot 4:c0c8f3edd60e 121 for( int i = Mat._nRows - 1; i > index; i-- )
Yo_Robot 1:48f417da268e 122 for( int j = 0; j < Mat._nCols; j++ )
Yo_Robot 1:48f417da268e 123 Mat._matrix[i][j] = Mat._matrix[i - 1][j];
Yo_Robot 1:48f417da268e 124
Yo_Robot 1:48f417da268e 125 for( int j = 0; j < Mat._nCols; j++ )
Yo_Robot 4:c0c8f3edd60e 126 Mat._matrix[index][j] = 0.0;
Yo_Robot 0:3abd8c2d7c34 127 }
Yo_Robot 0:3abd8c2d7c34 128 }
Yo_Robot 0:3abd8c2d7c34 129
Yo_Robot 0:3abd8c2d7c34 130
Yo_Robot 4:c0c8f3edd60e 131 void Matrix::AddRow(Matrix& Receip, const Matrix& Row, int index)
Yo_Robot 4:c0c8f3edd60e 132 {
Yo_Robot 4:c0c8f3edd60e 133 Matrix::AddRow( Receip, index ); //Make Room
Yo_Robot 4:c0c8f3edd60e 134
Yo_Robot 4:c0c8f3edd60e 135 --index;
Yo_Robot 4:c0c8f3edd60e 136 for( int i; i < Receip._nCols; i++ )
Yo_Robot 4:c0c8f3edd60e 137 Receip._matrix[index][i] = Row._matrix[0][i]; //Copy Data.
Yo_Robot 4:c0c8f3edd60e 138
Yo_Robot 4:c0c8f3edd60e 139 }
Yo_Robot 4:c0c8f3edd60e 140
Yo_Robot 4:c0c8f3edd60e 141
Yo_Robot 1:48f417da268e 142 /// To add (Insert) a single Column to a Matrix
Yo_Robot 4:c0c8f3edd60e 143 void Matrix::AddCol( Matrix& Mat, int index )
Yo_Robot 1:48f417da268e 144 {
Yo_Robot 4:c0c8f3edd60e 145 --index;
Yo_Robot 0:3abd8c2d7c34 146
Yo_Robot 4:c0c8f3edd60e 147 if( index > Mat._nCols + 1 )
Yo_Robot 1:48f417da268e 148 {
Yo_Robot 1:48f417da268e 149 printf("\n\nERROR:\nRow out of Limits on AddCol()\n");
Yo_Robot 2:493402568a5e 150
Yo_Robot 1:48f417da268e 151 }else{
Yo_Robot 1:48f417da268e 152
Yo_Robot 1:48f417da268e 153
Yo_Robot 1:48f417da268e 154 Mat._nCols++;
Yo_Robot 1:48f417da268e 155 for( int i = 0; i < Mat._nRows; i++ )
Yo_Robot 1:48f417da268e 156 Mat._matrix[i].resize( Mat._nCols );
Yo_Robot 1:48f417da268e 157
Yo_Robot 1:48f417da268e 158 for( int i = 0; i < Mat._nRows; i++ )
Yo_Robot 4:c0c8f3edd60e 159 for( int j = Mat._nCols; j > index; j-- )
Yo_Robot 1:48f417da268e 160 Mat._matrix[i][j] = Mat._matrix[i][j - 1];
Yo_Robot 1:48f417da268e 161
Yo_Robot 1:48f417da268e 162 for( int i = 0; i < Mat._nRows; i++ )
Yo_Robot 4:c0c8f3edd60e 163 Mat._matrix[i][index] = 0.0;
Yo_Robot 1:48f417da268e 164
Yo_Robot 1:48f417da268e 165 }
Yo_Robot 1:48f417da268e 166 }
Yo_Robot 1:48f417da268e 167
Yo_Robot 1:48f417da268e 168
Yo_Robot 4:c0c8f3edd60e 169 void Matrix::AddCol(Matrix& Receip, const Matrix& Row, int index)
Yo_Robot 4:c0c8f3edd60e 170 {
Yo_Robot 4:c0c8f3edd60e 171 Matrix::AddCol( Receip, index ); // Make Rom
Yo_Robot 4:c0c8f3edd60e 172
Yo_Robot 4:c0c8f3edd60e 173 --index;
Yo_Robot 4:c0c8f3edd60e 174 for( int i = 0; i < Receip._nRows; i++ )
Yo_Robot 4:c0c8f3edd60e 175 Receip._matrix[i][index] = Row._matrix[i][0]; //Copy Data.
Yo_Robot 4:c0c8f3edd60e 176 }
Yo_Robot 4:c0c8f3edd60e 177
Yo_Robot 4:c0c8f3edd60e 178
Yo_Robot 1:48f417da268e 179 /// Delete a Single Column From Matrix.
Yo_Robot 2:493402568a5e 180 void Matrix::DeleteCol( Matrix& Mat, int Col)
Yo_Robot 0:3abd8c2d7c34 181 {
Yo_Robot 0:3abd8c2d7c34 182 --Col; // Because of Column zero.
Yo_Robot 0:3abd8c2d7c34 183
Yo_Robot 1:48f417da268e 184 if( Col > Mat._nCols )
Yo_Robot 0:3abd8c2d7c34 185 {
Yo_Robot 1:48f417da268e 186 printf("\n\nERROR:\nColumn out of Limits @ DeleteCol()\n");
Yo_Robot 2:493402568a5e 187
Yo_Robot 0:3abd8c2d7c34 188 }else{
Yo_Robot 0:3abd8c2d7c34 189
Yo_Robot 1:48f417da268e 190 for( int i = 0; i < Mat._nRows; i++ )
Yo_Robot 1:48f417da268e 191 for( int j = Col; j < Mat._nCols; j++ )
Yo_Robot 0:3abd8c2d7c34 192 Mat._matrix[i][j] = Mat._matrix[i][j+1];
Yo_Robot 0:3abd8c2d7c34 193
Yo_Robot 2:493402568a5e 194 // If adressing last element of Column,
Yo_Robot 2:493402568a5e 195 // wich no longer exists
Yo_Robot 2:493402568a5e 196 if( Mat._pCol == Mat._nCols )
Yo_Robot 2:493402568a5e 197 Mat._pCol--;
Yo_Robot 2:493402568a5e 198
Yo_Robot 0:3abd8c2d7c34 199 // Decrease one column
Yo_Robot 1:48f417da268e 200 Mat._nCols--;
Yo_Robot 0:3abd8c2d7c34 201
Yo_Robot 0:3abd8c2d7c34 202 //Erase last Column
Yo_Robot 1:48f417da268e 203 for( int i = 0; i < Mat._nRows; i++ )
Yo_Robot 1:48f417da268e 204 Mat._matrix[i].reserve(Mat._nCols);
Yo_Robot 0:3abd8c2d7c34 205
Yo_Robot 0:3abd8c2d7c34 206 }
Yo_Robot 0:3abd8c2d7c34 207 }
Yo_Robot 0:3abd8c2d7c34 208
Yo_Robot 1:48f417da268e 209
Yo_Robot 1:48f417da268e 210 /// Delete a Single Row form Matrix
Yo_Robot 1:48f417da268e 211 void Matrix::DeleteRow(Matrix& Mat, int Row)
Yo_Robot 1:48f417da268e 212 {
Yo_Robot 1:48f417da268e 213 --Row;
Yo_Robot 0:3abd8c2d7c34 214
Yo_Robot 1:48f417da268e 215 if( Row > Mat._nRows )
Yo_Robot 1:48f417da268e 216 {
Yo_Robot 1:48f417da268e 217 printf("\n\nERROR:\nColumn out of Limits @ DeleteCol()\n");
Yo_Robot 2:493402568a5e 218
Yo_Robot 1:48f417da268e 219 }else{
Yo_Robot 0:3abd8c2d7c34 220
Yo_Robot 1:48f417da268e 221 for( int i = Row; i < Mat._nRows - 1; i++ )
Yo_Robot 2:493402568a5e 222
Yo_Robot 1:48f417da268e 223 for( int j = 0; j < Mat._nCols; j++ )
Yo_Robot 1:48f417da268e 224 Mat._matrix[i][j] = Mat._matrix[i+1][j];
Yo_Robot 1:48f417da268e 225 Mat._nRows--;
Yo_Robot 1:48f417da268e 226 Mat._matrix.resize(Mat._nRows);
Yo_Robot 1:48f417da268e 227 }
Yo_Robot 1:48f417da268e 228 }
Yo_Robot 1:48f417da268e 229
Yo_Robot 1:48f417da268e 230 /*****************************************************************************************/
Yo_Robot 1:48f417da268e 231
Yo_Robot 1:48f417da268e 232 /// Extracts a single row form calling matrix and saves it to another matrix.
Yo_Robot 2:493402568a5e 233 const Matrix Matrix::ExportRow( const Matrix& Mat, int row )
Yo_Robot 0:3abd8c2d7c34 234 {
Yo_Robot 2:493402568a5e 235 --row;
Yo_Robot 1:48f417da268e 236
Yo_Robot 2:493402568a5e 237 if( row > Mat._nRows )
Yo_Robot 0:3abd8c2d7c34 238 {
Yo_Robot 2:493402568a5e 239 printf( "\n\nERROR:\nRow out of dimmensions @ GetRow\n"
Yo_Robot 1:48f417da268e 240 "Nothing Done.\n\n" );
Yo_Robot 0:3abd8c2d7c34 241
Yo_Robot 0:3abd8c2d7c34 242 }else{
Yo_Robot 1:48f417da268e 243
Yo_Robot 2:493402568a5e 244 Matrix SingleRow( 1 , Mat._nCols );
Yo_Robot 1:48f417da268e 245 SingleRow.Clear();
Yo_Robot 4:c0c8f3edd60e 246
Yo_Robot 2:493402568a5e 247 for( int j = 0; j < Mat._nCols; j++ )
Yo_Robot 2:493402568a5e 248 SingleRow._matrix[0][j] = Mat._matrix[row][j];
Yo_Robot 2:493402568a5e 249
Yo_Robot 2:493402568a5e 250 SingleRow._pCol = SingleRow._nCols;
Yo_Robot 2:493402568a5e 251 SingleRow._pRow = 0;
Yo_Robot 2:493402568a5e 252
Yo_Robot 2:493402568a5e 253 return SingleRow;
Yo_Robot 0:3abd8c2d7c34 254 }
Yo_Robot 0:3abd8c2d7c34 255 }
Yo_Robot 0:3abd8c2d7c34 256
Yo_Robot 0:3abd8c2d7c34 257
Yo_Robot 1:48f417da268e 258 /// Extracts a single column form calling matrix and saves it to another matrix.
Yo_Robot 2:493402568a5e 259 const Matrix Matrix::ExportCol( const Matrix& Mat, int col )
Yo_Robot 1:48f417da268e 260 {
Yo_Robot 2:493402568a5e 261 --col;
Yo_Robot 4:c0c8f3edd60e 262
Yo_Robot 2:493402568a5e 263 if( col > Mat._nCols )
Yo_Robot 1:48f417da268e 264 {
Yo_Robot 2:493402568a5e 265 printf( "\n\nERROR:\nColumn out of dimmensions.\n"
Yo_Robot 1:48f417da268e 266 "Nothing Done.\n\n" );
Yo_Robot 1:48f417da268e 267 }else{
Yo_Robot 1:48f417da268e 268
Yo_Robot 2:493402568a5e 269 Matrix SingleCol( Mat._nRows, 1 );
Yo_Robot 2:493402568a5e 270 for(int i = 0; i < Mat._nRows; i++ )
Yo_Robot 2:493402568a5e 271 SingleCol._matrix[i][0] = Mat._matrix[i][col];
Yo_Robot 4:c0c8f3edd60e 272
Yo_Robot 2:493402568a5e 273 SingleCol._pCol = 0;
Yo_Robot 2:493402568a5e 274 SingleCol._pRow = SingleCol._nRows;
Yo_Robot 4:c0c8f3edd60e 275
Yo_Robot 2:493402568a5e 276 return SingleCol;
Yo_Robot 1:48f417da268e 277 }
Yo_Robot 1:48f417da268e 278 }
Yo_Robot 1:48f417da268e 279
Yo_Robot 1:48f417da268e 280
Yo_Robot 1:48f417da268e 281 /// Makes matrix Bigger!
Yo_Robot 1:48f417da268e 282 void Matrix::Resize( int Rows, int Cols )
Yo_Robot 1:48f417da268e 283 {
Yo_Robot 2:493402568a5e 284 _nRows = Rows; //Decreases one because internally
Yo_Robot 2:493402568a5e 285 _nCols = Cols; // Index starts at zero.
Yo_Robot 2:493402568a5e 286
Yo_Robot 2:493402568a5e 287 _matrix.resize( _nRows );
Yo_Robot 2:493402568a5e 288
Yo_Robot 1:48f417da268e 289 for( int i = 0; i< _nRows ; i++ )
Yo_Robot 1:48f417da268e 290 _matrix[i].resize(_nCols);
Yo_Robot 2:493402568a5e 291
Yo_Robot 2:493402568a5e 292 _pRow = 0; // If matrix is resized the <<
Yo_Robot 2:493402568a5e 293 _pCol = 0; // operator overwrites everything!
Yo_Robot 1:48f417da268e 294 }
Yo_Robot 1:48f417da268e 295
Yo_Robot 1:48f417da268e 296
Yo_Robot 1:48f417da268e 297 /// Ask user for elemnts in Matrix
Yo_Robot 0:3abd8c2d7c34 298 void Matrix::FillMatrix()
Yo_Robot 0:3abd8c2d7c34 299 {
Yo_Robot 1:48f417da268e 300 for(int i = 0; i < _nRows; i++)
Yo_Robot 0:3abd8c2d7c34 301 {
Yo_Robot 1:48f417da268e 302 for(int j = 0; j < _nCols; j++)
Yo_Robot 0:3abd8c2d7c34 303 {
Yo_Robot 0:3abd8c2d7c34 304 printf( "Position [%u][%u]: ", i, j );
Yo_Robot 0:3abd8c2d7c34 305 float numero;
Yo_Robot 0:3abd8c2d7c34 306 scanf( "%f", &numero );
Yo_Robot 0:3abd8c2d7c34 307 printf("%.3f ", numero);
Yo_Robot 1:48f417da268e 308 this->_matrix[i][j] = numero;
Yo_Robot 0:3abd8c2d7c34 309 }
Yo_Robot 0:3abd8c2d7c34 310 printf("\n");
Yo_Robot 0:3abd8c2d7c34 311 }
Yo_Robot 0:3abd8c2d7c34 312 printf("\n");
Yo_Robot 2:493402568a5e 313
Yo_Robot 2:493402568a5e 314 _pRow = _nRows;
Yo_Robot 2:493402568a5e 315 _pCol = _nCols;
Yo_Robot 0:3abd8c2d7c34 316 }
Yo_Robot 0:3abd8c2d7c34 317
Yo_Robot 0:3abd8c2d7c34 318
Yo_Robot 1:48f417da268e 319 /// Prints out Matrix.
Yo_Robot 0:3abd8c2d7c34 320 void Matrix::print()
Yo_Robot 0:3abd8c2d7c34 321 {
Yo_Robot 1:48f417da268e 322 for( int i = 0; i < _nRows; i++ )
Yo_Robot 0:3abd8c2d7c34 323 {
Yo_Robot 1:48f417da268e 324 for( int j = 0; j < _nCols; j++ )
Yo_Robot 0:3abd8c2d7c34 325 {
Yo_Robot 0:3abd8c2d7c34 326 printf( "%.3f, ",_matrix[i][j] );
Yo_Robot 1:48f417da268e 327
Yo_Robot 0:3abd8c2d7c34 328 }
Yo_Robot 1:48f417da268e 329 printf( "\n" );
Yo_Robot 0:3abd8c2d7c34 330 }
Yo_Robot 0:3abd8c2d7c34 331 }
Yo_Robot 0:3abd8c2d7c34 332
Yo_Robot 0:3abd8c2d7c34 333
Yo_Robot 1:48f417da268e 334 /// Fills matrix with zeros.
Yo_Robot 1:48f417da268e 335 void Matrix::Clear()
Yo_Robot 1:48f417da268e 336 {
Yo_Robot 1:48f417da268e 337 for( int i = 0; i < _nRows; i++ )
Yo_Robot 1:48f417da268e 338 for( int j = 0; j < _nCols; j++ )
Yo_Robot 1:48f417da268e 339 _matrix[i][j] = 0;
Yo_Robot 2:493402568a5e 340
Yo_Robot 2:493402568a5e 341 _pCol = 0; // New data can be added
Yo_Robot 2:493402568a5e 342 _pRow = 0;
Yo_Robot 1:48f417da268e 343 }
Yo_Robot 0:3abd8c2d7c34 344
Yo_Robot 1:48f417da268e 345 /********************************************************************************/
Yo_Robot 1:48f417da268e 346
Yo_Robot 2:493402568a5e 347
Yo_Robot 1:48f417da268e 348 /// Inserts a Single element in a desired Position( Index starts at [1][1] );
Yo_Robot 1:48f417da268e 349 void Matrix::add(int Row, int Col, float number)
Yo_Robot 1:48f417da268e 350 {
Yo_Robot 1:48f417da268e 351 --Col; --Row;
Yo_Robot 2:493402568a5e 352
Yo_Robot 1:48f417da268e 353 if( Row > _nRows || Col > _nCols )
Yo_Robot 1:48f417da268e 354 {
Yo_Robot 1:48f417da268e 355 printf("\n\nERROR:\nOut of limits of Matrix @ mat.Add()");
Yo_Robot 2:493402568a5e 356
Yo_Robot 1:48f417da268e 357 }else{
Yo_Robot 1:48f417da268e 358 _matrix[Row][Col] = number;
Yo_Robot 1:48f417da268e 359 }
Yo_Robot 1:48f417da268e 360 }
Yo_Robot 1:48f417da268e 361
Yo_Robot 1:48f417da268e 362
Yo_Robot 1:48f417da268e 363 /// Adds all elements in matrix and returns the answer.
Yo_Robot 1:48f417da268e 364 float Matrix::sum()
Yo_Robot 0:3abd8c2d7c34 365 {
Yo_Robot 0:3abd8c2d7c34 366 float total;
Yo_Robot 0:3abd8c2d7c34 367
Yo_Robot 1:48f417da268e 368 for( int i = 0; i < this->_nRows; i++ )
Yo_Robot 1:48f417da268e 369 for( int j = 0; j < this->_nCols; j++ )
Yo_Robot 0:3abd8c2d7c34 370 total += this->_matrix[i][j];
Yo_Robot 0:3abd8c2d7c34 371 return total;
Yo_Robot 0:3abd8c2d7c34 372 }
Yo_Robot 0:3abd8c2d7c34 373
Yo_Robot 0:3abd8c2d7c34 374
Yo_Robot 1:48f417da268e 375 /// Returns the specified element. Index Starts at [1][1].
Yo_Robot 1:48f417da268e 376 float Matrix::getNumber( int Row, int Col )
Yo_Robot 1:48f417da268e 377 { return this->_matrix[Row -1][Col - 1]; }
Yo_Robot 0:3abd8c2d7c34 378
Yo_Robot 1:48f417da268e 379 /// Returns the number of Rows in Matrix.
Yo_Robot 1:48f417da268e 380 int Matrix::getRows(){ return this->_nRows; }
Yo_Robot 0:3abd8c2d7c34 381
Yo_Robot 0:3abd8c2d7c34 382
Yo_Robot 1:48f417da268e 383 /// Returns the number of Columns in Matrix.
Yo_Robot 2:493402568a5e 384 int Matrix::getCols(){ return this->_nCols; }