UG_IO SimSys TETGEN 3D Grid File Type
A TETGEN file set contains a tria face boundary surface grid and (optionally) a tetrahedral element volume grid. This file type is supported by TetGen for output. See TetGen related documentation available for more information. A TETGEN file set uses multiple files for coordinates (.node), volume elements (.ele), and boundary surface faces (.face). TETGEN type grid files are only supported for input files. ASCII formatted is the only file format supported for TETGEN type grid files.