- DGN
About the computer file format the Illinois high school Downers Grove North Refimprove date August 2009 DGN Design is the name used for CAD file format s supported by Bentley Systems MicroStation and Intergraph s Interactive Graphics Design System IGDS CAD programs. There are two versions of DGN Up until 2000, all DGN files were based on the Intergraph Standard File Formats ISFF specification, published in the late 1980s by Intergraph. Sometimes referred to as V7 DGN, or Intergraph DGN. In 2000, Bentley Systems created an updated version of DGN which includes a superset of DGN s capabilities, but which has a different internal data structure than the ISFF based DGN. This version is properly referred to as V8 DGN. Although DGN is not as widely used as Autodesk s AutoCAD DWG DWG , it is nevertheless mission critical in many large projects, including buildings, highways, bridges, process plants, shipbuilding. In 2008 Autodesk and Bentley agreed on exchange of software libraries, including Autodesk RealDWG, to improve the ability to read and write the companies respective DWG and DGN formats in mixed environments with greater fidelity. In addition, the two companies will facilitate work process interoperability between their AEC applications through supporting the reciprocal use of available Application Programming Interfaces APIs . ref cite web url http pressreleases.autodesk.com index.php?s press releases&item 436 3C 2Ftd 3E accessdate 2009 01 01 title Autodesk and Bentley to Advance AEC Software Interoperability date 2008 07 08 Dead link date October 2010 bot H3llBot ref References references External links http www.bentley.com opendgn OpenDGN Bentley s OpenDGN initiative http dl.maptools.org dl dgnlib ref18.pdf Microstation 95 ISFF Description pdf Information on the ISFF DGN file format as distributed with Microstation 95. http dgnlib.maptools.org dgn.html ISFF Specification Intergraph Standard File Formats Element Structure http dgnlib.maptools.org DGNLib DGNLib a ... more details
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