This diagram illustrates the hierarchical structure in a CGNS file for an overset zone interface, starting with the ZoneGridConnectivity_t node.

The ZoneGridConnectivity_t node has the following characteristics.

The ZoneGridConnectivity_t node may have multiple child nodes, two of which are:

The OversetHoles_t node in turn has the following child nodes.

Finally, the GridConnectivity_t node has the following child nodes.