But
===

Write the result of a calculation in a file in MED format. All the keywords in the IMPR_RESU [:external:ref:`U4.91.01 <U4.91.01>`] command are described for this output format only.

You can write to your choice in a file in MED format:


* a mesh,


* from fields to nodes,


* from fields to items.

When writing element-wise fields at Gauss points, we also write the location of the reference elements (coordinates and weights of the Gauss points).

MED (Modeling and Data Exchanges) is a neutral data format developed by EDF R&D and CEA for data exchanges between calculation codes. The data that can be exchanged in this format are the meshes and the result fields at the nodes and by elements. MED files are binary and portable files (based on the HDF5 library, Hierarchical Data Format). Writing results to a file MED allows any other calculation code interfaced with MED to read the results produced by*Code_Aster* via the IMPR_RESU command.