- 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. ref cite web url http www.fileinfo.com extension dgn title .DGN File Extension ref 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. This is 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 to the ISFF based DGN. This version is properly referred to as V8 DGN. ref cite web url http docs.bentley.com ko MicroStation ustnhelp47.html title V8 DGN ref The DGN format is used in many large projects, including buildings, highways, bridges, process plants, shipbuilding. DGN is not as widely used as Autodesk s AutoCAD DWG DWG . Citation needed date March 2012 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 interface s APIs . ref cite web url http usa.autodesk.com adsk servlet item?siteID 123112&id 11680608&linkID 14271589 title Autodesk and Bentley to Advance AEC Software Interoperability date 2008 07 08 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.mapt ... more details
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