Malha não estruturada
  -------------------------------
  Vetor de coordenadas (x,y)
          13
    0.000000000000000E+00    0.000000000000000E+00
    5.000000000000000E-01    0.000000000000000E+00
    1.000000000000000E+00    0.000000000000000E+00
    0.000000000000000E+00    5.000000000000000E-01
    5.000000000000000E-01    5.000000000000000E-01
    1.000000000000000E+00    5.000000000000000E-01
    0.000000000000000E+00    1.000000000000000E+00
    5.000000000000000E-01    1.000000000000000E+00
    1.000000000000000E+00    1.000000000000000E+00
    5.000000000000000E-01   -5.000000000000000E-01
    1.500000000000000E+00    5.000000000000000E-01
    5.000000000000000E-01    1.500000000000000E+00
   -5.000000000000000E-01    5.000000000000000E-01
  -------------------------------
 Elementos
          16
       5       1       2
       5       2       3
       5       3       6
       5       6       9
       5       9       8
       5       8       7
       5       7       4
       5       4       1
      10       2       1
      10       3       2
      11       6       3
      11       9       6
      12       8       9
      12       7       8
      13       4       7
      13       1       4