Exodus 7.21

Functions
ex_get_elem_num_map.c File Reference
`#include "exodusII.h"`

## Functions
int | ex_get_elem_num_map (int exoid, void_int *elem_map)

## Function Documentation

## ◆ ex_get_elem_num_map()

int ex_get_elem_num_map | ( | int | exoid,
|  | void_int * | elem_map
| ) |  |

Deprecated:
  Use ex_get_id_map()(exoid, EX_ELEM_MAP, elem_map)

The function ex_get_elem_num_map() reads the optional element number map from the database. See Section LocalElementIds for a description of the element number map. If an element number map is not stored in the data file, a default array (1,2,3,. .. num_elem) is returned. Memory must be allocated for the element number map array ({num_elem} in length) before this call is made.

Returns
  In case of an error, ex_get_elem_num_map() 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()
  - if an element number map is not stored, a default map and a warning value are returned.

Parameters

  [in] | exoid | exodus file ID returned from a previous call to ex_create() or ex_open().
  [out] | elem_map | Returned element number map.

The following code will read an element number map from an open exodus file :

int *elem_map, error, exoid;
/* read element number map */
elem_map = (int *) calloc(num_elem, sizeof(int));
error = ex_get_elem_num_map (exoid, elem_map);
/* Equivalent using non-deprecated function */
error = ex_get_id_map(exoid, EX_ELEM_MAP, elem_map);