BGL File Format
Introduction
The information contained in this wiki comes from different sources:
- "FSX File structure" by Winfried Orthmann
- This is the first document about BGL file format. It describes the generic format of a BGL file and the content of some important sections like Airport, Scenery Objects,etc.
- Some reverse engineering work on the TmfViewer and BglComp applications.
BGL Common Format
All BGL files share the same generic format. A BGL file is made of a header, sections, subsections and subsection data. Subsections are children of sections. The sections are here to help us locate the subsections in the file. Data specific information is contained in the subsections data and their format is dependent on the section type.
A BGL file is really a big container where all kind of information can be stored (in the subsection).The meaning of the data contained in the subsections is known only by the application using it. Th only contraint is for the file to comply to the generic format described below.
A BGL file always start with a header (Size = 0x38 bytes), followed by a list of section pointers. The number of section pointers is defined in the header.
