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Mesh Oriented datABase
(version 5.5.1)
An array-based unstructured mesh library
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Mesh Oriented datABase
(version 5.5.1)
An array-based unstructured mesh library
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1 /**
2 * MOAB, a Mesh-Oriented datABase, is a software component for creating,
3 * storing and accessing finite element mesh data.
4 *
5 * Copyright 2004 Sandia Corporation. Under the terms of Contract
6 * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government
7 * retains certain rights in this software.
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 */
15
16 #include "GmshUtil.hpp"
17
18 namespace moab
19 {
20
21 // Indexed by position in Gmsh order, containing cooresponding
22 // position in MOAB order.
23 const int hex_27_node_order[] = { 0, 1, 2, 3, 4, 5, 6, 7, // corners
24 8, 11, 12, 9, 13, 10, 14, 15, 16, 19, 17, 18, // edges
25 24, 20, 23, 21, 22, 25, // faces
26 26 }; // volume
27
28 const int tet_10_node_order[] = { 0, 1, 2, 3, 4, 5, 6, 7, 9, 8 };
29
30 // Indexed by position in MOAB order, containing cooresponding
31 // position in Gmsh order.
32 const int pri_15_node_order[] = {
33 0, 1, 2, 3, 4, 5, // corners
34 6, 8, 9, 7, 10, 11, 12, 14, 13 // edges
35 };
36 const int pyr_13_node_order[] = {
37 0, 1, 2, 3, 4, // corners
38 5, 8, 9, 6, 10, 7, 11, 12 // edges
39 };
40
41 // List of GmshElemType structs, indexed by the VTK type number.
42 const GmshElemType GmshUtil::gmshElemTypes[] = {
43 { 0, 0, MBMAXTYPE, 0, 0 },
44 { "line", 1, MBEDGE, 2, 0 },
45 { "triangle", 2, MBTRI, 3, 0 },
46 { "quadrangle", 3, MBQUAD, 4, 0 },
47 { "tetrahedron", 4, MBTET, 4, 0 },
48 { "hexahedron", 5, MBHEX, 8, 0 },
49 { "prism", 6, MBPRISM, 6, 0 },
50 { "pyramid", 7, MBPYRAMID, 5, 0 },
51 { "2nd order line", 8, MBEDGE, 3, 0 },
52 { "2nd order triangle", 9, MBTRI, 6, 0 },
53 { "2nd order quadrangle", 10, MBQUAD, 9, 0 },
54 { "2nd order tetrahedron", 11, MBTET, 10, tet_10_node_order },
55 { "2nd order hexahedron", 12, MBHEX, 27, hex_27_node_order },
56 { "2nd order prism", 13, MBMAXTYPE, 0, 0 }, // prism w/ mid-face nodes on quads but not tris
57 { "2nd order pyramid", 14, MBMAXTYPE, 0, 0 }, // pyramid w/ mid-face nodes on quad but not tris
58 { "point", 15, MBVERTEX, 1, 0 }, // point element (0-rad sphere element?) // will be skipped
59 { "2nd order quadrangle", 16, MBQUAD, 8, 0 },
60 { "2nd order hexahedron", 17, MBHEX, 20, hex_27_node_order },
61 { "2nd order prism", 18, MBPRISM, 15, pri_15_node_order },
62 { "2nd order pyramid", 19, MBPYRAMID, 13, pyr_13_node_order },
63 { "3rd order triangle", 20, MBMAXTYPE, 0, 0 }, // triangle w/ 2 nodes per edge
64 { "3rd order triangle", 21, MBMAXTYPE, 0, 0 }, // " " " " " " and mid-face node
65 { "4th order triangle", 22, MBMAXTYPE, 0, 0 }, // triangle w/ 3 nodes per edge
66 { "4th order triangle", 23, MBMAXTYPE, 0, 0 }, // " " " " " " and 3 mid-face nodes
67 { "5th order triangle", 24, MBMAXTYPE, 0, 0 }, // triangle w/ 4 nodes per edge
68 { "5th order triangle", 25, MBMAXTYPE, 0, 0 }, // " " " " " " and 6 mid-face nodes
69 { "3rd order edge", 26, MBMAXTYPE, 0, 0 }, // 4-node edge
70 { "4th order edge", 27, MBMAXTYPE, 0, 0 }, // 5-node edge
71 { "5th order edge", 28, MBMAXTYPE, 0, 0 }, // 6-node edge
72 { "3rd order tetrahedron", 29, MBMAXTYPE, 0, 0 }, // tet w/ 2 nodes per edge and 1 per face
73 { "4th order tetrahedron", 30, MBMAXTYPE, 0, 0 }, // tet w/ 3 nodes per edge, 3 per face, and 1 mid-voluem
74 { "5th order tetrahedron", 31, MBMAXTYPE, 0, 0 }, // tet w/ 4 nodes per edge, 6 per face, and 4 mid-voluem
75 { 0, 32, MBMAXTYPE, 0, 0 } };
76
77 const unsigned GmshUtil::numGmshElemType = sizeof( GmshUtil::gmshElemTypes ) / sizeof( GmshUtil::gmshElemTypes[0] );
78
79 // Define an array, indexed by EntityType and number of nodes,
80 // containing the corresponding Gmsh element type.
81 #define TWENTYEIGHT_ZEROS \
82 { \
83 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 \
84 }
85 const int MAX_NODES = 28;
86 const int mb_to_gmsh_type[][MAX_NODES] = {
87 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
88 TWENTYEIGHT_ZEROS, // MBVERTEX
89 { 0, 0, 1, 8, 26, 27, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, // MBEDGE
90 { 0, 0, 0, 2, 0, 0, 9, 0, 0, 20, 21, 0, 22, 0, 0, 23, 0, 0, 0, 0, 0, 25, 0, 0, 0, 0, 0, 0 }, // MBTRI
91 { 0, 0, 0, 0, 3, 0, 0, 0, 16, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, // MBQUAD
92 TWENTYEIGHT_ZEROS, // MBPOLYGON
93 { 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 29, 0, 0, 0, 0, 0, 0, 0 }, // MBTET
94 { 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 19, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, // MBPYRAMID
95 { 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 18, 0, 0, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, // MBWEDGE
96 TWENTYEIGHT_ZEROS, // MBKNIFE
97 { 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 0, 0, 0, 0, 0, 0, 12 }, // MBHEX
98 TWENTYEIGHT_ZEROS, // MBPOLYHEDRON
99 TWENTYEIGHT_ZEROS, // MBENTITYSET
100 TWENTYEIGHT_ZEROS }; // MBMAXTYPE
101
102 int GmshUtil::get_gmsh_type( EntityType type, unsigned num_nodes )
103 {
104 if( num_nodes >= (unsigned)MAX_NODES ) return -1;
105
106 int idx = mb_to_gmsh_type[type][num_nodes];
107 if( !idx ) return -1;
108
109 return gmshElemTypes[idx].mb_type == MBMAXTYPE ? -1 : idx;
110 }
111
112 } // namespace moab
1.9.1.