ASCII-based font format used on both Macintosh and Windows systems; stores Adobe screen fonts as human-readable data; must be placed in the system Fonts folder in order to be recognized by applications.
BDF files are referenced by programs that access system fonts.
Input file used by MSC Nastran, a program that analyzes structures such as aircraft, buildings, and spacecraft; contains bulk data definitions to be input into MSC Nastran to analyze the stress and strain levels of model structures; includes information such as the name of the bulk data, the number of grids, and the node locations of the elements that make up the models; data appears in the FORTRAN programming language, which was originally developed by IBM, and stands for Formula Translating System.
BDF files are separated into 5 sections:
NOTE: The BDF file is similar to the .NAS and .DAT files, which are used to input data by MSC Nastran.