/*
 * Copyright (c) 2005 Sandia Corporation. Under the terms of Contract
 * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Governement
 * retains certain rights in this software.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 * 
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.  
 * 
 *     * Neither the name of Sandia Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without 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 THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */

#include "exodusII.h"
#include "exodusII_int.h"
#include <string.h>

/*!

The function ex_put_coord_names() writes the names (\p
MAX_STR_LENGTH-characters in length) of the coordinate arrays to the
database. Memory must be allocated for the character strings before
this function is invoked.

In case of an error, ex_put_coord_names() returns a negative number; a
warning will return a positive number.  Possible causes of errors
include:
  -  data file not properly opened with call to ex_create() or ex_open()
  -  data file opened for read only.
  -  data file not initialized properly with call to ex_put_init().

\param[in] exoid          exodus file ID returned from a previous call to ex_create() or ex_open().
\param[in] coord_names    Array containing \c num_dim names of length \p MAX_STR_LENGTH  
                          of the nodal coordinate arrays.

The following coding will write the coordinate names to an 
open exodus file :

\code
int error, exoid;

char *coord_names[3];
coord_names[0] = "xcoor";
coord_names[1] = "ycoor";
coord_names[2] = "zcoor";

error = ex_put_coord_names (exoid, coord_names);
\endcode

 */

int ex_put_coord_names (int   exoid,
                        char *coord_names[])
{
  int status;
  int ndimdim, varid;
  size_t num_dim;
  char errmsg[MAX_ERR_LENGTH];

  exerrval = 0; /* clear error code */

  if ((status = nc_inq_dimid(exoid, DIM_NUM_DIM, &ndimdim)) != NC_NOERR) {
    exerrval = status;
    sprintf(errmsg,
      "Error: failed to locate number of dimensions in file id %d",
      exoid);
    ex_err("ex_put_coord_names",errmsg,exerrval);
    return (EX_FATAL);
  }

  if ((status = nc_inq_dimlen(exoid, ndimdim, &num_dim)) != NC_NOERR) {
    exerrval = status;
    sprintf(errmsg,
            "Error: inquire failed to get number of dimensions in file id %d",
      exoid);
    ex_err("ex_put_coord_names",errmsg,exerrval);
    return (EX_FATAL);
  }

  if ((status = nc_inq_varid(exoid, VAR_NAME_COOR, &varid)) == -1) {
    exerrval = status;
    sprintf(errmsg,
            "Error: failed to locate coordinate names in file id %d",
      exoid);
    ex_err("ex_put_coord_names",errmsg,exerrval);
    return (EX_FATAL);
  }

  /* write out coordinate names */
  status = ex_put_names_internal(exoid, varid, num_dim, coord_names, EX_COORDINATE,
         "", "ex_put_coord_names");

  return (status);
}