1 2#------------------------------------------------------------------------------ 3# $File: cad,v 1.11 2011/12/08 12:12:46 rrt Exp $ 4# autocad: file(1) magic for cad files 5# 6 7# AutoCAD DWG versions R13/R14 (www.autodesk.com) 8# Written December 01, 2003 by Lester Hightower 9# Based on the DWG File Format Specifications at http://www.opendwg.org/ 100 string \101\103\061\060\061 AutoCAD 11>5 string \062\000\000\000\000 DWG ver. R13 12>5 string \064\000\000\000\000 DWG ver. R14 13 14# Microstation DGN/CIT Files (www.bentley.com) 15# Last updated July 29, 2005 by Lester Hightower 16# DGN is the default file extension of Microstation/Intergraph CAD files. 17# CIT is the proprietary raster format (similar to TIFF) used to attach 18# raster underlays to Microstation DGN (vector) drawings. 19# 20# http://www.wotsit.org/search.asp 21# http://filext.com/detaillist.php?extdetail=DGN 22# http://filext.com/detaillist.php?extdetail=CIT 23# 24# http://www.bentley.com/products/default.cfm?objectid=97F351F5-9C35-4E5E-89C2 25# 3F86C928&method=display&p_objectid=97F351F5-9C35-4E5E-89C280A93F86C928 26# http://www.bentley.com/products/default.cfm?objectid=A5C2FD43-3AC9-4C71-B682 27# 721C479F&method=display&p_objectid=A5C2FD43-3AC9-4C71-B682C7BE721C479F 280 string \010\011\376 Microstation 29>3 string \002 30>>30 string \026\105 DGNFile 31>>30 string \034\105 DGNFile 32>>30 string \073\107 DGNFile 33>>30 string \073\110 DGNFile 34>>30 string \106\107 DGNFile 35>>30 string \110\103 DGNFile 36>>30 string \120\104 DGNFile 37>>30 string \172\104 DGNFile 38>>30 string \172\105 DGNFile 39>>30 string \172\106 DGNFile 40>>30 string \234\106 DGNFile 41>>30 string \273\105 DGNFile 42>>30 string \306\106 DGNFile 43>>30 string \310\104 DGNFile 44>>30 string \341\104 DGNFile 45>>30 string \372\103 DGNFile 46>>30 string \372\104 DGNFile 47>>30 string \372\106 DGNFile 48>>30 string \376\103 DGNFile 49>4 string \030\000\000 CITFile 50>4 string \030\000\003 CITFile 51 52# AutoCad, from Nahuel Greco 53# AutoCAD DWG versions R12/R13/R14 (www.autodesk.com) 540 string AC1012 DWG AutoDesk AutoCad (release 12) 550 string AC1013 DWG AutoDesk AutoCad (release 13) 560 string AC1014 DWG AutoDesk AutoCad (release 14) 57# A new version of AutoCAD DWG 58# Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru, 59# ICQ 358572321) 60# From various sources like: 61# http://autodesk.blogs.com/between_the_lines/autocad-release-history.html 620 string AC1018 DWG AutoDesk AutoCAD 2004/2005/2006 630 string AC1021 DWG AutoDesk AutoCAD 2007/2008/2009 640 string AC1024 DWG AutoDesk AutoCAD 2010/2011 65 66# KOMPAS 2D drawing from ASCON 67# This is KOMPAS 2D drawing or fragment of drawing but is not detailed nor 68# gathered nor specification 69# ASCON http://ascon.net/main/ in English, 70# http://ascon.ru/ main site in Russian 71# Extension is CDW for drawing and FRW for fragment of drawing 72# Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru, 73# ICQ 358572321, http://vkontakte.ru/id16076543) 74# From: 75# http://sd.ascon.ru/otrs/customer.pl?Action=CustomerFAQ&CategoryID=4&ItemID=292 76# (in russian) and my experiments 770 string KF 78>2 belong 0x4E00000C Kompas drawing 12.0 SP1 79>2 belong 0x4D00000C Kompas drawing 12.0 80>2 belong 0x3200000B Kompas drawing 11.0 SP1 81>2 belong 0x3100000B Kompas drawing 11.0 82>2 belong 0x2310000A Kompas drawing 10.0 SP1 83>2 belong 0x2110000A Kompas drawing 10.0 84>2 belong 0x08000009 Kompas drawing 9.0 SP1 85>2 belong 0x05000009 Kompas drawing 9.0 86>2 belong 0x33010008 Kompas drawing 8+ 87>2 belong 0x1A000008 Kompas drawing 8.0 88>2 belong 0x2C010107 Kompas drawing 7+ 89>2 belong 0x05000007 Kompas drawing 7.0 90>2 belong 0x32000006 Kompas drawing 6+ 91>2 belong 0x09000006 Kompas drawing 6.0 92>2 belong 0x5C009005 Kompas drawing 5.11R03 93>2 belong 0x54009005 Kompas drawing 5.11R02 94>2 belong 0x51009005 Kompas drawing 5.11R01 95>2 belong 0x22009005 Kompas drawing 5.10R03 96>2 belong 0x22009005 Kompas drawing 5.10R02 mar 97>2 belong 0x21009005 Kompas drawing 5.10R02 febr 98>2 belong 0x19009005 Kompas drawing 5.10R01 99>2 belong 0xF4008005 Kompas drawing 5.9R01.003 100>2 belong 0x1C008005 Kompas drawing 5.9R01.002 101>2 belong 0x11008005 Kompas drawing 5.8R01.003 102 103# CAD: file(1) magic for computer aided design files 104# Phillip Griffith <phillip dot griffith at gmail dot com> 105# AutoCAD magic taken from the Open Design Alliance's OpenDWG specifications. 106# 1070 belong 0x08051700 Bentley/Intergraph MicroStation DGN cell library 1080 belong 0x0809fe02 Bentley/Intergraph MicroStation DGN vector CAD 1090 belong 0xc809fe02 Bentley/Intergraph MicroStation DGN vector CAD 1100 beshort 0x0809 Bentley/Intergraph MicroStation 111>0x02 byte 0xfe 112>>0x04 beshort 0x1800 CIT raster CAD 1130 string AC1012 AutoDesk AutoCAD R13 1140 string AC1014 AutoDesk AutoCAD R14 1150 string AC1015 AutoDesk AutoCAD R2000 116 117# 3DS (3d Studio files) Conflicts with diff output 0x3d '=' 118#16 beshort 0x3d3d image/x-3ds 119