function [ dim, vertices, vertex_coordinate, vertex_label, edges, ...
  edge_vertex, edge_label, triangles, triangle_vertex, triangle_label, ...
  quadrilaterals, quadrilateral_vertex, quadrilateral_label, tetrahedrons, ...
  tetrahedron_vertex, tetrahedron_label, hexahedrons, hexahedron_vertex, ...
  hexahedron_label ] = cyl248 ( )

%*****************************************************************************80
%
%% CYL248 defines a 3D tetrahedral mesh.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    14 October 2010
%
%  Author:
%
%    John Burkardt
%
%  Reference:
%
%    Pascal Frey,
%    MEDIT: An interactive mesh visualization software,
%    Technical Report RT-0253,
%    Institut National de Recherche en Informatique et en Automatique,
%    03 December 2001.
%
%  Parameters:
%
%    Output, integer DIM, the spatial dimension, which should be 3.
%
%    Output, integer VERTICES, the number of vertices.
%
%    Output, real VERTEX_COORDINATE(3,VERTICES), the XYZ coordinates
%    of each vertex.
%
%    Output, integer VERTEX_LABEL(VERTICES), a label for each vertex.
%
%    Output, integer EDGES, the number of edges (may be 0).
%
%    Output, integer EDGE_VERTEX(2,EDGES), the vertices that form each edge.
%
%    Output, integer EDGE_LABEL(EDGES), a label for each edge.
%
%    Output, integer TRIANGLES, the number of triangles (may be 0).
%
%    Output, integer TRIANGLE_VERTEX(3,TRIANGLES), the vertices that form
%    each triangle.
%
%    Output, integer TRIANGLE_LABEL(TRIANGLES), a label for each triangle.
%
%    Output, integer QUADRILATERALS, the number of quadrilaterals (may be 0).
%
%    Output, integer QUADRILATERAL_VERTEX(4,QUADRILATERALS), the vertices that
%    form each quadrilateral.
%
%    Output, integer QUADRILATERAL_LABEL(QUADRILATERALS), a label for 
%    each quadrilateral.
%
%    Output, integer TETRAHEDRONS, the number of tetrahedrons (may be 0).
%
%    Output, integer TETRAHEDRON_VERTEX(4,TETRAHEDRONS), the vertices that
%    form each tetrahedron.
%
%    Output, integer TETRAHEDRON_LABEL(TETRAHEDRONS), a label for 
%    each tetrahedron.
%
%    Output, integer HEXAHEDRONS, the number of hexahedrons (may be 0).
%
%    Output, integer HEXAHEDRON_VERTEX(8,HEXAHEDRONS), the vertices that form
%    each hexahedron.
%
%    Output, integer HEXAHEDRON_LABEL(HEXAHEDRONS), a label for each hexahedron.
%
  dim = 3;

  vertices = 92;
  vertex_coordinate = [ ...
  1.0,       0.2,         0.0; ...
  1.0,       0.141421,    0.141421; ...
  1.0,       0.0,         0.2; ...
  1.0,      -0.141421,    0.141421; ...
  1.0,      -0.2,         0.0; ...
  1.0,      -0.141421,   -0.141421; ...
  1.0,       0.0,        -0.2; ...
  1.0,       0.141421,   -0.141421; ...
  1.0,       0.066163,   -0.0302872; ...
  1.0,      -0.0615154,  -0.0610739; ...
  1.0,      -0.0306985,   0.0668017; ...
  0.0,       0.2,         0.0; ...
  0.0,       0.141421,   -0.141421; ...
  0.0,       0.0,        -0.2; ...
  0.0,      -0.141421,   -0.141421; ...
  0.0,      -0.2,         0.0; ...
  0.0,      -0.141421,    0.141421; ...
  0.0,       0.0,         0.2; ...
  0.0,       0.141421,    0.141421; ...
  0.0,       0.0686748,   0.0255359; ...
  0.0,       0.0,        -0.0865993; ...
  0.0,      -0.0686749,   0.0255359; ...
  0.8816,    0.185522,   -0.0747102; ...
  0.642415,  0.187806,   -0.0687668; ...
  0.627606, -0.0696445,  -0.187482; ...
  0.876431,  0.0811908,  -0.182779; ...
  0.881613,  0.186118,    0.0732131; ...
  0.872048, -0.0699008,  -0.187387; ...
  0.878318,  0.0844232,   0.181308; ...
  0.845861, -0.0716063,   0.186742; ...
  0.866503, -0.182493,   -0.0818307; ...
  0.859402, -0.186751,    0.0715813; ...
  0.131355,  0.18477,     0.0765501; ...
  0.13317,   0.077694,    0.184292; ...
  0.130862,  0.185301,   -0.0752567; ...
  0.135181, -0.0749468,   0.185426; ...
  0.130839,  0.0781729,  -0.18409; ...
  0.131856, -0.0754694,  -0.185214; ...
  0.135683, -0.184121,    0.0780993; ...
  0.134207, -0.184959,   -0.0760928; ...
  0.261923,  0.199982,    0.00264585; ...
  0.263928,  0.144161,    0.138627; ...
  0.268645,  0.00535339,  0.199928; ...
  0.272346, -0.137646,    0.145098; ...
  0.26108,   0.144683,   -0.138082; ...
  0.260772,  0.00498797, -0.199938; ...
  0.264253, -0.139152,   -0.143655; ...
  0.270288, -0.199962,    0.00389323; ...
  0.408181, -0.0730357,   0.186187; ...
  0.411818, -0.184374,    0.0774991; ...
  0.397539,  0.080738,    0.182979; ...
  0.39192,   0.185619,    0.0744699; ...
  0.392192,  0.184438,   -0.0773479; ...
  0.389194,  0.0770141,  -0.184577; ...
  0.38786,  -0.0747817,  -0.185493; ...
  0.762413,  0.199986,   -0.0023425; ...
  0.762987,  0.151152,   -0.13097; ...
  0.741526,  0.0187858,  -0.199116; ...
  0.746899, -0.128364,   -0.153371; ...
  0.720076, -0.19917,    -0.0182053; ...
  0.7628,    0.152219,    0.129728; ...
  0.763882,  0.0434475,   0.195224; ...
  0.399903, -0.1841,     -0.0781489; ...
  0.506331, -0.00579066, -0.199916; ...
  0.514514, -0.133894,   -0.148568; ...
  0.526121,  0.135152,   -0.147424; ...
  0.517967,  0.199953,   -0.0043215; ...
  0.520585,  0.147847,    0.13469; ...
  0.533956,  0.0124181,   0.199614; ...
  0.558316, -0.136902,    0.145801; ...
  0.549126, -0.199624,   -0.0122659; ...
  0.657307,  0.117735,   -0.161674; ...
  0.611189,  0.041829,   -0.195577; ...
  0.631917, -0.164669,   -0.113508; ...
  0.641444,  0.187001,    0.0709267; ...
  0.720251, -0.155557,    0.125706; ...
  0.647345,  0.0932963,   0.176906; ...
  0.677484, -0.0430068,   0.195321; ...
  0.635293, -0.188734,    0.0661777; ...
  0.888023, -0.00868364, -0.00818647; ...
  0.112146,  0.0,        -0.0118425; ...
  0.676228,  0.0124197,  -0.0856487; ...
  0.638436, -0.0639898,   0.0525795; ...
  0.452586, -0.0410297,  -0.0704842; ...
  0.762004, -0.0188614,   0.0693717; ...
  0.463368,  0.0649048,   0.0262133; ...
  0.473921, -0.0356443,   0.0388516; ...
  0.557002,  0.0123705,  -0.0932599; ...
  0.290986, -0.0200898,   0.00857934; ...
  0.7038,    0.0856777,   0.0182744; ...
  0.576134,  0.0436218,   0.0828782; ...
  0.215187,  0.080855,   -0.0314946 ]';

  vertex_label = [ ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    2; ...
    2; ...
    2; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    4; ...
    4; ...
    4; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0; ...
    0 ]';

  edges = 0;
  edge_vertex = [];
  edge_label = [];

  triangles = 154;

  triangle_vertex = [ ...
    12, 20, 19; ...
    12, 13, 20; ...
    19, 20, 18; ...
    20, 22, 18; ...
    22, 17, 18; ...
    22, 16, 17; ...
    13, 21, 20; ...
    13, 14, 21; ...
    14, 15, 21; ...
    22, 15, 16; ...
    22, 21, 15; ...
    20, 21, 22; ...
    1, 9, 8; ...
    2, 9, 1; ...
    9, 7, 8; ...
    2, 11, 9; ...
    11, 2, 3; ...
    11, 3, 4; ...
    9, 10, 7; ...
    7, 10, 6; ...
    10, 5, 6; ...
    11, 4, 5; ...
    5, 10, 11; ...
    9, 11, 10; ...
    23, 1, 8; ...
    26, 23, 8; ...
    26, 8, 7; ...
    27, 1, 23; ...
    2, 1, 27; ...
    26, 7, 28; ...
    7, 6, 28; ...
    27, 29, 2; ...
    29, 3, 2; ...
    29, 30, 3; ...
    30, 4, 3; ...
    6, 31, 28; ...
    6, 5, 31; ...
    5, 32, 31; ...
    5, 4, 32; ...
    12, 19, 33; ...
    19, 34, 33; ...
    19, 18, 34; ...
    12, 33, 35; ...
    12, 35, 13; ...
    18, 36, 34; ...
    36, 18, 17; ...
    35, 37, 13; ...
    13, 37, 14; ...
    38, 14, 37; ...
    38, 15, 14; ...
    39, 36, 17; ...
    39, 17, 16; ...
    38, 40, 15; ...
    40, 16, 15; ...
    39, 16, 40; ...
    33, 41, 35; ...
    33, 42, 41; ...
    33, 34, 42; ...
    36, 43, 34; ...
    43, 42, 34; ...
    39, 44, 36; ...
    44, 43, 36; ...
    35, 45, 37; ...
    35, 41, 45; ...
    37, 46, 38; ...
    37, 45, 46; ...
    38, 47, 40; ...
    38, 46, 47; ...
    39, 48, 44; ...
    39, 40, 48; ...
    47, 48, 40; ...
    44, 49, 43; ...
    44, 50, 49; ...
    44, 48, 50; ...
    43, 51, 42; ...
    43, 49, 51; ...
    42, 52, 41; ...
    42, 51, 52; ...
    41, 53, 45; ...
    41, 52, 53; ...
    45, 54, 46; ...
    45, 53, 54; ...
    46, 55, 47; ...
    46, 54, 55; ...
    30, 32, 4; ...
    23, 56, 27; ...
    23, 57, 56; ...
    23, 26, 57; ...
    28, 58, 26; ...
    58, 57, 26; ...
    31, 59, 28; ...
    59, 58, 28; ...
    32, 60, 31; ...
    60, 59, 31; ...
    27, 61, 29; ...
    27, 56, 61; ...
    29, 62, 30; ...
    29, 61, 62; ...
    55, 63, 47; ...
    63, 48, 47; ...
    48, 63, 50; ...
    54, 64, 55; ...
    64, 65, 55; ...
    65, 63, 55; ...
    53, 66, 54; ...
    66, 64, 54; ...
    52, 67, 53; ...
    67, 66, 53; ...
    51, 68, 52; ...
    68, 67, 52; ...
    49, 69, 51; ...
    69, 68, 51; ...
    50, 70, 49; ...
    70, 69, 49; ...
    63, 71, 50; ...
    71, 70, 50; ...
    65, 71, 63; ...
    64, 25, 65; ...
    64, 73, 25; ...
    64, 66, 73; ...
    67, 24, 66; ...
    24, 72, 66; ...
    72, 73, 66; ...
    68, 75, 67; ...
    75, 24, 67; ...
    69, 77, 68; ...
    77, 75, 68; ...
    70, 78, 69; ...
    78, 77, 69; ...
    62, 78, 30; ...
    78, 76, 30; ...
    76, 32, 30; ...
    32, 76, 60; ...
    61, 77, 62; ...
    77, 78, 62; ...
    56, 75, 61; ...
    75, 77, 61; ...
    57, 24, 56; ...
    24, 75, 56; ...
    58, 72, 57; ...
    72, 24, 57; ...
    59, 25, 58; ...
    25, 73, 58; ...
    73, 72, 58; ...
    60, 74, 59; ...
    74, 25, 59; ...
    25, 74, 65; ...
    65, 74, 71; ...
    70, 76, 78; ...
    71, 79, 70; ...
    79, 76, 70; ...
    79, 60, 76; ...
    74, 60, 71; ...
    60, 79, 71 ]';

  triangle_label = [ ...
    4; ...
    4; ...
    4; ...
    4; ...
    4; ...
    4; ...
    4; ...
    4; ...
    4; ...
    4; ...
    4; ...
    4; ...
    2; ...
    2; ...
    2; ...
    2; ...
    2; ...
    2; ...
    2; ...
    2; ...
    2; ...
    2; ...
    2; ...
    2; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3; ...
    3 ]';
    
  quadrilaterals = 0;
  quadrilateral_vertex = [];
  quadrilateral_label = [];

  tetrahedrons = 248;
  tetrahedron_vertex = [ ...
    23, 1, 9, 8; ...
    27, 9, 23, 1; ...
    26, 8, 23, 9; ...
    26, 9, 7, 8; ...
    2, 9, 27, 1; ...
    26, 9, 10, 7; ...
    26, 28, 7, 10; ...
    11, 29, 3, 2; ...
    7, 6, 10, 28; ...
    10, 6, 31, 28; ...
    11, 29, 30, 3; ...
    11, 30, 4, 3; ...
    11, 30, 32, 4; ...
    10, 6, 5, 31; ...
    11, 5, 4, 32; ...
    19, 33, 34, 20; ...
    39, 22, 40, 16; ...
    39, 17, 36, 22; ...
    39, 22, 16, 17; ...
    40, 22, 15, 16; ...
    12, 19, 20, 33; ...
    19, 20, 34, 18; ...
    12, 33, 20, 35; ...
    38, 37, 14, 21; ...
    36, 22, 17, 18; ...
    38, 14, 15, 21; ...
    13, 14, 37, 21; ...
    12, 20, 13, 35; ...
    80, 32, 11, 30; ...
    80, 28, 10, 31; ...
    80, 31, 59, 28; ...
    80, 58, 57, 26; ...
    80, 28, 58, 26; ...
    80, 59, 58, 28; ...
    80, 28, 26, 10; ...
    80, 10, 26, 9; ...
    80, 9, 11, 10; ...
    80, 9, 26, 23; ...
    80, 23, 26, 57; ...
    80, 23, 27, 9; ...
    80, 23, 56, 27; ...
    80, 30, 11, 29; ...
    80, 5, 10, 11; ...
    80, 5, 11, 32; ...
    80, 5, 32, 31; ...
    80, 31, 10, 5; ...
    80, 2, 11, 9; ...
    80, 29, 11, 2; ...
    80, 2, 9, 27; ...
    80, 27, 29, 2; ...
    81, 40, 39, 22; ...
    81, 22, 39, 36; ...
    81, 18, 36, 34; ...
    81, 34, 20, 18; ...
    81, 22, 36, 18; ...
    81, 20, 22, 18; ...
    81, 37, 38, 21; ...
    81, 20, 33, 35; ...
    81, 13, 21, 20; ...
    81, 13, 20, 35; ...
    81, 13, 37, 21; ...
    81, 35, 37, 13; ...
    81, 20, 21, 22; ...
    81, 34, 33, 20; ...
    81, 21, 38, 15; ...
    81, 38, 40, 15; ...
    81, 22, 21, 15; ...
    81, 15, 40, 22; ...
    82, 60, 74, 59; ...
    82, 74, 25, 59; ...
    82, 73, 72, 58; ...
    82, 25, 73, 58; ...
    82, 59, 25, 58; ...
    82, 58, 72, 57; ...
    82, 57, 80, 58; ...
    82, 58, 80, 59; ...
    83, 71, 79, 70; ...
    83, 70, 76, 78; ...
    83, 79, 76, 70; ...
    83, 79, 60, 76; ...
    83, 82, 60, 74; ...
    84, 54, 64, 55; ...
    84, 64, 65, 55; ...
    84, 65, 63, 55; ...
    84, 65, 71, 63; ...
    85, 29, 62, 30; ...
    85, 80, 29, 30; ...
    85, 29, 61, 62; ...
    85, 78, 83, 76; ...
    85, 78, 76, 30; ...
    85, 62, 78, 30; ...
    85, 76, 83, 60; ...
    85, 76, 32, 30; ...
    85, 32, 80, 30; ...
    85, 32, 76, 60; ...
    85, 27, 61, 29; ...
    85, 80, 27, 29; ...
    85, 83, 82, 60; ...
    85, 77, 78, 62; ...
    85, 60, 82, 59; ...
    85, 59, 82, 80; ...
    85, 32, 60, 31; ...
    85, 80, 32, 31; ...
    85, 60, 59, 31; ...
    85, 59, 80, 31; ...
    86, 51, 68, 52; ...
    86, 69, 68, 51; ...
    86, 68, 67, 52; ...
    86, 52, 67, 53; ...
    86, 67, 66, 53; ...
    86, 53, 66, 54; ...
    87, 50, 70, 49; ...
    87, 71, 70, 50; ...
    87, 63, 71, 50; ...
    87, 63, 84, 71; ...
    87, 70, 69, 49; ...
    87, 71, 83, 70; ...
    87, 49, 69, 51; ...
    87, 69, 86, 51; ...
    88, 64, 66, 73; ...
    88, 72, 73, 66; ...
    88, 72, 82, 73; ...
    88, 24, 72, 66; ...
    88, 64, 73, 25; ...
    88, 73, 82, 25; ...
    88, 66, 64, 54; ...
    88, 84, 54, 64; ...
    88, 87, 86, 84; ...
    88, 67, 24, 66; ...
    88, 66, 86, 67; ...
    88, 64, 25, 65; ...
    88, 65, 84, 64; ...
    88, 25, 74, 65; ...
    88, 25, 82, 74; ...
    88, 83, 87, 71; ...
    88, 71, 87, 84; ...
    88, 82, 83, 74; ...
    88, 74, 83, 71; ...
    88, 65, 74, 71; ...
    88, 71, 84, 65; ...
    89, 86, 87, 84; ...
    89, 39, 48, 44; ...
    89, 44, 49, 43; ...
    89, 44, 43, 36; ...
    89, 44, 48, 50; ...
    89, 48, 63, 50; ...
    89, 86, 84, 54; ...
    89, 51, 87, 86; ...
    89, 44, 50, 49; ...
    89, 50, 87, 49; ...
    89, 43, 49, 51; ...
    89, 49, 87, 51; ...
    89, 39, 44, 36; ...
    89, 36, 81, 39; ...
    89, 63, 48, 47; ...
    89, 47, 48, 40; ...
    89, 46, 55, 47; ...
    89, 38, 46, 47; ...
    89, 55, 63, 47; ...
    89, 55, 84, 63; ...
    89, 43, 42, 34; ...
    89, 43, 51, 42; ...
    89, 45, 53, 54; ...
    89, 53, 86, 54; ...
    89, 45, 54, 46; ...
    89, 42, 52, 41; ...
    89, 41, 52, 53; ...
    89, 52, 86, 53; ...
    89, 42, 51, 52; ...
    89, 51, 86, 52; ...
    89, 46, 54, 55; ...
    89, 54, 84, 55; ...
    90, 56, 75, 61; ...
    90, 24, 75, 56; ...
    90, 27, 56, 61; ...
    90, 61, 85, 27; ...
    90, 75, 77, 61; ...
    90, 80, 82, 57; ...
    90, 85, 82, 80; ...
    90, 57, 24, 56; ...
    90, 72, 24, 57; ...
    90, 57, 82, 72; ...
    90, 80, 56, 27; ...
    90, 85, 80, 27; ...
    91, 85, 90, 77; ...
    91, 86, 87, 69; ...
    91, 78, 77, 69; ...
    91, 83, 88, 82; ...
    91, 90, 82, 88; ...
    91, 67, 88, 86; ...
    91, 88, 87, 86; ...
    91, 87, 88, 83; ...
    91, 83, 85, 78; ...
    91, 78, 85, 77; ...
    91, 77, 75, 68; ...
    91, 77, 90, 75; ...
    91, 69, 77, 68; ...
    91, 68, 86, 69; ...
    91, 68, 75, 67; ...
    91, 67, 86, 68; ...
    91, 24, 88, 67; ...
    91, 90, 88, 24; ...
    91, 69, 87, 70; ...
    91, 87, 83, 70; ...
    91, 75, 24, 67; ...
    91, 75, 90, 24; ...
    92, 89, 46, 45; ...
    92, 41, 53, 45; ...
    92, 89, 45, 53; ...
    92, 89, 53, 41; ...
    92, 89, 41, 42; ...
    92, 35, 41, 45; ...
    92, 33, 41, 35; ...
    92, 35, 81, 33; ...
    92, 35, 45, 37; ...
    92, 81, 35, 37; ...
    92, 34, 89, 42; ...
    92, 81, 89, 34; ...
    92, 33, 42, 41; ...
    92, 37, 45, 46; ...
    92, 37, 46, 38; ...
    92, 81, 37, 38; ...
    92, 33, 34, 42; ...
    92, 33, 81, 34; ...
    83, 74, 60, 71; ...
    83, 60, 79, 71; ...
    89, 39, 40, 48; ...
    89, 39, 81, 40; ...
    89, 36, 43, 34; ...
    89, 34, 81, 36; ...
    89, 63, 87, 50; ...
    89, 84, 87, 63; ...
    54, 88, 66, 86; ...
    54, 88, 86, 84; ...
    90, 72, 88, 24; ...
    90, 82, 88, 72; ...
    38, 47, 89, 40; ...
    38, 89, 81, 40; ...
    92, 46, 89, 38; ...
    92, 89, 81, 38; ...
    80, 23, 57, 56; ...
    80, 57, 90, 56; ...
    61, 85, 62, 77; ...
    61, 90, 85, 77; ...
    82, 85, 91, 83; ...
    82, 90, 91, 85; ...
    70, 91, 78, 83; ...
    70, 78, 91, 69 ]';

  tetrahedron_label(1:tetrahedrons) = 1;

  hexahedrons = 0;
  hexahedron_vertex = [];
  hexahedron_label = [];

  return
end

