Initialize Matrix  [0 0 0 0 0
                    0 0 0 0 0
                    0 0 0 0 0 ]

After place rectangle
                  [ 0 0 0 0 0
                    R 1 1 0 0
                    0 0 0 0 0]

Matrix     [ 1 1 1 0 0 0
                          R 1 1 0 0 0
                          0 0 0 0 0 0]

Matrix     [ 1 1 1 0 0 0
             R 1 1 0 0 0
             0 0 0 0 0 0]