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#------------------------------------------------------------------------------
# $File: cad,v 1.11 2011/12/08 12:12:46 rrt Exp $
# autocad: file(1) magic for cad files
#
# AutoCAD DWG versions R13/R14 (www.autodesk.com)
# Written December 01, 2003 by Lester Hightower
# Based on the DWG File Format Specifications at http://www.opendwg.org/
0 string \101\103\061\060\061 AutoCAD
>5 string \062\000\000\000\000 DWG ver. R13
>5 string \064\000\000\000\000 DWG ver. R14
# Microstation DGN/CIT Files (www.bentley.com)
# Last updated July 29, 2005 by Lester Hightower
# DGN is the default file extension of Microstation/Intergraph CAD files.
# CIT is the proprietary raster format (similar to TIFF) used to attach
# raster underlays to Microstation DGN (vector) drawings.
#
# http://www.wotsit.org/search.asp
# http://filext.com/detaillist.php?extdetail=DGN
# http://filext.com/detaillist.php?extdetail=CIT
#
# http://www.bentley.com/products/default.cfm?objectid=97F351F5-9C35-4E5E-89C2
# 3F86C928&method=display&p_objectid=97F351F5-9C35-4E5E-89C280A93F86C928
# http://www.bentley.com/products/default.cfm?objectid=A5C2FD43-3AC9-4C71-B682
# 721C479F&method=display&p_objectid=A5C2FD43-3AC9-4C71-B682C7BE721C479F
0 string \010\011\376 Microstation
>3 string \002
>>30 string \026\105 DGNFile
>>30 string \034\105 DGNFile
>>30 string \073\107 DGNFile
>>30 string \073\110 DGNFile
>>30 string \106\107 DGNFile
>>30 string \110\103 DGNFile
>>30 string \120\104 DGNFile
>>30 string \172\104 DGNFile
>>30 string \172\105 DGNFile
>>30 string \172\106 DGNFile
>>30 string \234\106 DGNFile
>>30 string \273\105 DGNFile
>>30 string \306\106 DGNFile
>>30 string \310\104 DGNFile
>>30 string \341\104 DGNFile
>>30 string \372\103 DGNFile
>>30 string \372\104 DGNFile
>>30 string \372\106 DGNFile
>>30 string \376\103 DGNFile
>4 string \030\000\000 CITFile
>4 string \030\000\003 CITFile
# AutoCad, from Nahuel Greco
# AutoCAD DWG versions R12/R13/R14 (www.autodesk.com)
0 string AC1012 DWG AutoDesk AutoCad (release 12)
0 string AC1013 DWG AutoDesk AutoCad (release 13)
0 string AC1014 DWG AutoDesk AutoCad (release 14)
# A new version of AutoCAD DWG
# Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru,
# ICQ 358572321)
# From various sources like:
# http://autodesk.blogs.com/between_the_lines/autocad-release-history.html
0 string AC1018 DWG AutoDesk AutoCAD 2004/2005/2006
0 string AC1021 DWG AutoDesk AutoCAD 2007/2008/2009
0 string AC1024 DWG AutoDesk AutoCAD 2010/2011
# KOMPAS 2D drawing from ASCON
# This is KOMPAS 2D drawing or fragment of drawing but is not detailed nor
# gathered nor specification
# ASCON http://ascon.net/main/ in English,
# http://ascon.ru/ main site in Russian
# Extension is CDW for drawing and FRW for fragment of drawing
# Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru,
# ICQ 358572321, http://vkontakte.ru/id16076543)
# From:
# http://sd.ascon.ru/otrs/customer.pl?Action=CustomerFAQ&CategoryID=4&ItemID=292
# (in russian) and my experiments
0 string KF
>2 belong 0x4E00000C Kompas drawing 12.0 SP1
>2 belong 0x4D00000C Kompas drawing 12.0
>2 belong 0x3200000B Kompas drawing 11.0 SP1
>2 belong 0x3100000B Kompas drawing 11.0
>2 belong 0x2310000A Kompas drawing 10.0 SP1
>2 belong 0x2110000A Kompas drawing 10.0
>2 belong 0x08000009 Kompas drawing 9.0 SP1
>2 belong 0x05000009 Kompas drawing 9.0
>2 belong 0x33010008 Kompas drawing 8+
>2 belong 0x1A000008 Kompas drawing 8.0
>2 belong 0x2C010107 Kompas drawing 7+
>2 belong 0x05000007 Kompas drawing 7.0
>2 belong 0x32000006 Kompas drawing 6+
>2 belong 0x09000006 Kompas drawing 6.0
>2 belong 0x5C009005 Kompas drawing 5.11R03
>2 belong 0x54009005 Kompas drawing 5.11R02
>2 belong 0x51009005 Kompas drawing 5.11R01
>2 belong 0x22009005 Kompas drawing 5.10R03
>2 belong 0x22009005 Kompas drawing 5.10R02 mar
>2 belong 0x21009005 Kompas drawing 5.10R02 febr
>2 belong 0x19009005 Kompas drawing 5.10R01
>2 belong 0xF4008005 Kompas drawing 5.9R01.003
>2 belong 0x1C008005 Kompas drawing 5.9R01.002
>2 belong 0x11008005 Kompas drawing 5.8R01.003
# CAD: file(1) magic for computer aided design files
# Phillip Griffith <phillip dot griffith at gmail dot com>
# AutoCAD magic taken from the Open Design Alliance's OpenDWG specifications.
#
0 belong 0x08051700 Bentley/Intergraph MicroStation DGN cell library
0 belong 0x0809fe02 Bentley/Intergraph MicroStation DGN vector CAD
0 belong 0xc809fe02 Bentley/Intergraph MicroStation DGN vector CAD
0 beshort 0x0809 Bentley/Intergraph MicroStation
>0x02 byte 0xfe
>>0x04 beshort 0x1800 CIT raster CAD
0 string AC1012 AutoDesk AutoCAD R13
0 string AC1014 AutoDesk AutoCAD R14
0 string AC1015 AutoDesk AutoCAD R2000
# 3DS (3d Studio files) Conflicts with diff output 0x3d '='
#16 beshort 0x3d3d image/x-3ds
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