Cubit 16.04 User Documentation
The Geometric Data Format (GDF) is an export format used by WAMIT. The file format consists of quadrilateral and triangular elements.
Export GDF '<filename>' [entity_list] [Block <id_list>] [ulen <value=1.0>] [gravity <value=9.80665>] [isx <value=0>] [isy <value=0>] [Overwrite]
All elements to be exported should be part of a block. All blocks are exported unless otherwise specified in the command. The standard GDF parameters can be specified on export.