ne_pnvs.c

一个用来实现偏微分方程中网格的计算库

/*
 * Copyright (c) 1998 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.
 * 
 */

/*****************************************************************************/
/*****************************************************************************/
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/* Function(s) contained in this file:
 *
 *      ne_put_nodal_var_slab()
 *
 *****************************************************************************
 *   
 *  Variable Index:
 *
 *      neid               - The NetCDF ID of an already open NemesisI file.
 *      time_step          - The time step to write this data to.
 *      nodal_var_index    - The index of this nodal variable.
 *      start_pos          - The start point for outputting data. The first
 *                           value is 0.
 *      num_vals           - The number of values to be output.
 *      nodal_var_vals     - Pointer to the vector of values to be output.
 */    
/*****************************************************************************/
/*****************************************************************************/
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#include <stdio.h>

#include "exodusII.h"
#include "exodusII_int.h"

#include "ne_nemesisI_int.h"
#include "ne_nemesisI.h"

/*
 * writes the values of a single nodal variable for a single time step to 
 * the database; assume the first time step and nodal variable index
 * is 1
 */

int ne_put_nodal_var_slab (int   neid,
                           int   time_step,
                           int   nodal_var_index,
                           int   start_pos,
                           int   num_vals,
                           void *nodal_var_vals)

{
  int status;
  int varid;
  size_t start[3], count[3];
  char errmsg[MAX_ERR_LENGTH];

  exerrval = 0; /* clear error code */

  /* inquire previously defined variable  -- if not found assume that
     the new separate 'blob' per nodal var storage is being used */

  if (ex_large_model(neid) == 0) {
    /* write values of the nodal variable */
    if ((status = nc_inq_varid (neid, VAR_NOD_VAR, &varid)) != NC_NOERR) {
      exerrval = status;
      sprintf(errmsg,
              "Warning: could not find nodal variable %d in file id %d",
              nodal_var_index, neid);
      ex_err("ne_put_nodal_var_slab",errmsg,exerrval);
      return (EX_WARN);
    }

    start[0] = --time_step;
    start[1] = --nodal_var_index;
    start[2] = --start_pos;

    count[0] = 1;
    count[1] = 1;
    count[2] = num_vals;
  } else {

    /* nodal variables stored separately, find variable for this variable
       index */
    if ((status = nc_inq_varid (neid, VAR_NOD_VAR_NEW(nodal_var_index), &varid)) != NC_NOERR) {
      exerrval = status;
      sprintf(errmsg,
              "Warning: could not find nodal variable %d in file id %d",
              nodal_var_index, neid);
      ex_err("ne_put_nodal_var_slab",errmsg,exerrval);
      return (EX_WARN);
    }

    start[0] = --time_step;
    start[1] = --start_pos;

    count[0] = 1;
    count[1] = num_vals;
  }

  if (ex_comp_ws(neid) == 4) {
    status = nc_put_vara_float(neid, varid, start, count, nodal_var_vals);
  } else {
    status = nc_put_vara_double(neid, varid, start, count, nodal_var_vals);
  }
  
  if (status != NC_NOERR) {
    exerrval = status;
    sprintf(errmsg,
	    "Error: failed to store nodal variables in file id %d",
	    neid);
    ex_err("ne_put_nodal_var_slab",errmsg,exerrval);
    return (EX_FATAL);
  }

  return (EX_NOERR);
}