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#------------------------------------------------------------------------------
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# $File: cad,v 1.9 2009/09/19 16:28:08 christos Exp $
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# autocad: file(1) magic for cad files
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#
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# AutoCAD DWG versions R13/R14 (www.autodesk.com)
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# Written December 01, 2003 by Lester Hightower
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# Based on the DWG File Format Specifications at http://www.opendwg.org/
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0 string \101\103\061\060\061 AutoCAD
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>5 string \062\000\000\000\000 DWG ver. R13
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>5 string \064\000\000\000\000 DWG ver. R14
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# Microstation DGN/CIT Files (www.bentley.com)
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# Last updated July 29, 2005 by Lester Hightower
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# DGN is the default file extension of Microstation/Intergraph CAD files.
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# CIT is the proprietary raster format (similar to TIFF) used to attach
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# raster underlays to Microstation DGN (vector) drawings.
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#
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# http://www.wotsit.org/search.asp
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# http://filext.com/detaillist.php?extdetail=DGN
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# http://filext.com/detaillist.php?extdetail=CIT
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#
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# http://www.bentley.com/products/default.cfm?objectid=97F351F5-9C35-4E5E-89C2
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# 3F86C928&method=display&p_objectid=97F351F5-9C35-4E5E-89C280A93F86C928
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# http://www.bentley.com/products/default.cfm?objectid=A5C2FD43-3AC9-4C71-B682
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# 721C479F&method=display&p_objectid=A5C2FD43-3AC9-4C71-B682C7BE721C479F
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0 string \010\011\376 Microstation
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>3 string \002
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>>30 string \026\105 DGNFile
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>>30 string \034\105 DGNFile
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>>30 string \073\107 DGNFile
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>>30 string \073\110 DGNFile
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>>30 string \106\107 DGNFile
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>>30 string \110\103 DGNFile
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>>30 string \120\104 DGNFile
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>>30 string \172\104 DGNFile
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>>30 string \172\105 DGNFile
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>>30 string \172\106 DGNFile
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>>30 string \234\106 DGNFile
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>>30 string \273\105 DGNFile
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>>30 string \306\106 DGNFile
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>>30 string \310\104 DGNFile
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>>30 string \341\104 DGNFile
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>>30 string \372\103 DGNFile
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>>30 string \372\104 DGNFile
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>>30 string \372\106 DGNFile
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>>30 string \376\103 DGNFile
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>4 string \030\000\000 CITFile
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>4 string \030\000\003 CITFile
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# AutoCad, from Nahuel Greco
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# AutoCAD DWG versions R12/R13/R14 (www.autodesk.com)
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0 string AC1012 AutoCad (release 12)
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0 string AC1013 AutoCad (release 13)
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0 string AC1014 AutoCad (release 14)
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# CAD: file(1) magic for computer aided design files
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# Phillip Griffith <phillip dot griffith at gmail dot com>
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# AutoCAD magic taken from the Open Design Alliance's OpenDWG specifications.
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#
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0 belong 0x08051700 Bentley/Intergraph MicroStation DGN cell library
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0 belong 0x0809fe02 Bentley/Intergraph MicroStation DGN vector CAD
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0 belong 0xc809fe02 Bentley/Intergraph MicroStation DGN vector CAD
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0 beshort 0x0809 Bentley/Intergraph MicroStation
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>0x02 byte 0xfe
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>>0x04 beshort 0x1800 CIT raster CAD
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0 string AC1012 AutoDesk AutoCAD R13
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0 string AC1014 AutoDesk AutoCAD R14
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0 string AC1015 AutoDesk AutoCAD R2000
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