text: /*****************************************************************************
  *
  * Copyright (c) 2000 - 2019, Lawrence Livermore National Security, LLC
  * Produced at the Lawrence Livermore National Laboratory
  * LLNL-CODE-442911
  * All rights reserved.
  *
  * This file is  part of VisIt. For  details, see https://visit.llnl.gov/.  The
  * full copyright notice is contained in the file COPYRIGHT located at the root
  * of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
  *
  * Redistribution  and  use  in  source  and  binary  forms,  with  or  without
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  *    this list of conditions and the disclaimer below.
  *  - Redistributions in binary form must reproduce the above copyright notice,
  *    this  list of  conditions  and  the  disclaimer (as noted below)  in  the
  *    documentation and/or other materials provided with the distribution.
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  *    specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT  HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR  IMPLIED WARRANTIES, INCLUDING,  BUT NOT  LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND  FITNESS FOR A PARTICULAR  PURPOSE
  * ARE  DISCLAIMED. IN  NO EVENT  SHALL LAWRENCE  LIVERMORE NATIONAL  SECURITY,
  * LLC, THE  U.S.  DEPARTMENT OF  ENERGY  OR  CONTRIBUTORS BE  LIABLE  FOR  ANY
  * DIRECT,  INDIRECT,   INCIDENTAL,   SPECIAL,   EXEMPLARY,  OR   CONSEQUENTIAL
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  *****************************************************************************/
  
  #include <silo.h>
  #include <stdio.h>
  
  void
  write_ucd3d(DBfile *dbfile)
  {
      /* Node coordinates */
      float x[] = {0.,2.,2.,0.,0.,2.,2.,0.,0.,2.,2.,0.,1.,2.,4.,4.};
      float y[] = {0.,0.,0.,0.,2.,2.,2.,2.,4.,4.,4.,4.,6.,0.,0.,0.};
      float z[] = {2.,2.,0.,0.,2.,2.,0.,0.,2.,2.,0.,0.,1.,4.,2.,0.};
      float *coords[] = {x, y, z};
      /* Connectivity */
      int nodelist[] = {
          1,2,3,4,5,6,7,8,    /* hex,     zone 1 */
          5,6,7,8,9,10,11,12, /* hex,     zone 2 */
          12,11,10,9,13,      /* pyramid, zone 3 */
          2,3,16,15,6,7,      /* prism,   zone 4 */
          2,15,14,6           /* tet,     zone 5 */
      };
      int lnodelist = sizeof(nodelist) / sizeof(int);
      /* shape type 1 has 8 nodes (hex) */
      /* shape type 2 has 5 nodes (pyramid) */
      /* shape type 3 has 6 nodes (prism) */
      /* shape type 4 has 4 nodes (tet) */
      int shapesize[] = {8,5,6,4};
      /* We have 2 hex, 1 pyramid, 1 prism, 1 tet */
      int shapecounts[] = {2,1,1,1};
      int nshapetypes = 4;
      int nnodes = 16;
      int nzones = 5;
      int ndims = 3;
      /* Write out connectivity information. */
      DBPutZonelist(dbfile, "zonelist", nzones, ndims, nodelist, lnodelist,
          1, shapesize, shapecounts, nshapetypes);
      /* Write an unstructured mesh. */
      DBPutUcdmesh(dbfile, "mesh", ndims, NULL, coords, nnodes, nzones,
          "zonelist", NULL, DB_FLOAT, NULL);
  }
  
  int
  main(int argc, char *argv[])
  {
      DBfile *dbfile = NULL;
      /* Open the Silo file */
      dbfile = DBCreate("ucd3d.silo", DB_CLOBBER, DB_LOCAL,
          "Unstructured 3d mesh", DB_HDF5);
      if(dbfile == NULL)
      {
          fprintf(stderr, "Could not create Silo file!\n");
          return -1;
      }
  
      /* Add other Silo calls here. */
      write_ucd3d(dbfile);
  
      /* Close the Silo file. */
      DBClose(dbfile);
      return 0;
  }
  