The function ex_get_map() reads the element order map from the database. See #ElementOrderMap for a description of the element order map. If an element order 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 map array ({num_elem} in length) before this call is made.
- Returns
- In case of an error, ex_get_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 order 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 order map. |
The following code will read an element order map from an open exodus file :
elem_map = (int *)calloc(num_elem, sizeof(int));