Intergraph Standard File Formats
Encyclopedia
Intergraph Standard File Formats (ISFF) are the file formats common to MicroStation
and Intergraph
's Interactive Graphics Design System (IGDS). ISFF is made available to the public, so that third-party developers could create applications for MicroStation that read and write ISFF format without a license from Intergraph.
MicroStation versions 8 and newer support the V8 DGN file format, but which has a different internal data structure than the ISFF-based DGN. In cases where there is potential for confusion, ISFF-based DGN may be called Intergraph DGN, or V7 DGN.
Autodesk has chosen not to support DGN in AutoCAD
2006, although it does support the format in its Map3D, Land Desktop, and Civil3D products.
Microstation
MicroStation is a CAD software product for 2- and 3-dimensional design and drafting, developed and sold by Bentley Systems. The latest versions of the software are released solely for Microsoft Windows operating systems, but historically MicroStation was available for Macintosh platforms and a...
and Intergraph
Intergraph
Intergraph Corporation is an American software development and services company. It provides enterprise engineering and geospatially powered software to businesses, governments, and organizations around the world. Intergraph operates through two divisions: Process, Power & Marine and Security,...
's Interactive Graphics Design System (IGDS). ISFF is made available to the public, so that third-party developers could create applications for MicroStation that read and write ISFF format without a license from Intergraph.
- Design files, or DGN files (*.dgn) are binary fileBinary fileA binary file is a computer file which may contain any type of data, encoded in binary form for computer storage and processing purposes; for example, computer document files containing formatted text...
s with variable-length records for graphic elements, and non-graphic data. - Cell library files (*.cel) are binary files that store cell definitions for placement in design files.
MicroStation versions 8 and newer support the V8 DGN file format, but which has a different internal data structure than the ISFF-based DGN. In cases where there is potential for confusion, ISFF-based DGN may be called Intergraph DGN, or V7 DGN.
Autodesk has chosen not to support DGN in AutoCAD
AutoCAD
AutoCAD is a software application for computer-aided design and drafting in both 2D and 3D. It is developed and sold by Autodesk, Inc. First released in December 1982, AutoCAD was one of the first CAD programs to run on personal computers, notably the IBM PC...
2006, although it does support the format in its Map3D, Land Desktop, and Civil3D products.