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magic/Magdir/cad
448 строк
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Christos Zoulas
PR/742: davidsong: Add autocad slide
16 апр 2026, 18:06
16 апр 2026, 18:06
bd6b73c
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#------------------------------------------------------------------------------ # $File: cad,v 1.32 2026/04/16 15:06:17 christos Exp $ # autocad: file(1) magic for cad files # # 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 # https://filext.com/detaillist.php?extdetail=DGN # https://filext.com/detaillist.php?extdetail=CIT # # https://www.bentley.com/products/default.cfm?objectid=97F351F5-9C35-4E5E-89C2 # 3F86C928&method=display&p_objectid=97F351F5-9C35-4E5E-89C280A93F86C928 # https://www.bentley.com/products/default.cfm?objectid=A5C2FD43-3AC9-4C71-B682 # 721C479F&method=display&p_objectid=A5C2FD43-3AC9-4C71-B682C7BE721C479F # # URL: https://en.wikipedia.org/wiki/MicroStation # reference: http://dgnlib.maptools.org/dgn.html # http://dgnlib.maptools.org/dl/ref18.pdf # Update: Joerg Jenderek # Note: verfied by command like `dgndump seed2d_b.dgn` # test for level 8 and type 5 or 9 0 beshort&0x3F73 0x0801 # level of element like 8 #>0 ubyte&0x3F x \b, level %u #>0 ubyte &0x80 \b, complex #>0 ubyte &0x40 \b, reserved # type of element 9~TCB 8~Digitizer setup 5~Group Data Elements #>1 ubyte&0x7F x \b, type %u # words to follow in element: 17H~CEL library 2FEh~DGN 9FEh,DFEh~CIT #>2 uleshort x \b, words %#4.4x to follow # test for 3 reserved 0 bytes in CIT or "conversion" in ViewInfo structure (DGN CEL) #>508 ubelong x \b, RESERVED %8.8x >508 ubelong&0xFFffFF00 =0 # test for level 8 and type 9 for INGR raster image >>0 beshort 0x0809 # test for length of 1st element is multiple of blocks a 512 bytes >>>2 ubyte 0xfe >>>>0 use ingr-image # test for DGN or CEL by jump words (uleshort) forward to next element >(2.s*2) ulong x # 2nd element type: 8~Digitizer~DesiGNfile 1~library cell header other~CIT #>>&1 ubyte&0x7F x \b, 2nd type %u # DGN >>&1 ubyte&0x7F 8 >>>2 uleshort =0x02FE Bentley/Intergraph Microstation CAD drawing !:mime application/x-bentley-dgn !:ext dgn # The 0x40 bit of this byte is 1 if the file is 3D, otherwise 0 >>>>1214 ubyte &0x40 3D >>>>1214 ubyte ^0x40 2D # 2 chars for name of subunits like ft FT in IN mu m mm '\0 '\040 >>>>1120 string x \b, units %-.2s # 2 chars for name of master unit like IN in ML SU tn th TH HU mm "\0 "\040 \0\0 >>>>1122 string >\0 %-.2s #>>>>1120 ubelong x \b, units %#8.8x # element range low,high x y z like xlow=0 08010000h 01080000h #>>>>4 ubelong !0 \b, xlow %8.8x #>>>>8 ubelong !0 \b, ylow %8.8x #>>>>12 ubelong !0 \b, zlow %8.8x #>>>>16 ubelong !0 \b, xhigh %8.8x #>>>>20 ubelong !0 \b, yhigh %8.8x #>>>>24 ubelong !0 \b, zhigh %8.8x # graphic group number; all other elements in that group have same non-0 number #>>>>28 leshort x \b, grphgrp %#4.4x # words to optional attribute linkage #>>>>30 ubyte x \b, attindx \%o #>>>>31 ubyte x \b\%o # >>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 # elements properties indicator #>>>>32 uleshort !0 \b, properties %#4.4x # class 0~Primary #>>>>>32 uleshort&0x000F !0 \b, class %#4.4x # Symbology #>>>>>34 uleshort x \b, Symbology %#4.4x # test for 2nd element type 1~library cell header >>&1 ubyte&0x7F 1 # test for 1st element with level 8 and type 5 for cell library >>>0 beshort 0x0805 Bentley/Intergraph Microstation CAD cell library !:mime application/x-bentley-cel !:ext cel # # URL: http://fileformats.archiveteam.org/wiki/Intergraph_Raster # reference: https://web.archive.org/web/20140903185431/ # http://oreilly.com/www/centers/gff/formats/ingr/index.htm # note: verfied by command like `nconvert -fullinfo LONGLAT.CIT` # display information for intergraph raster bitmap 0 name ingr-image # in 5.37 "Microstation CITFile" "Bentley/Intergraph MicroStation CIT raster CAD" # DataTypeCode indicates format, depth of the pixel data and used compression >4 uleshort x Intergraph raster image >>4 uleshort 0x0009 \b, Run-Length Encoded 1-bit !:mime image/x-intergraph-rle !:ext rel >>4 uleshort 0x0018 \b, CCITT Group 4 1-bit !:mime image/x-intergraph-cit !:ext cit >>4 uleshort 27 \b, Adaptive RLE RGB !:mime image/x-intergraph-rgb !:ext rgb >>4 default x >>>4 uleshort x \b, Type %u !:mime image/x-intergraph # TODO: #>4 uleshort 0 \b, no data # ... #>4 uleshort 0x0045 \b, Continuous Tone CMKY (Uncompressed) # ApplicationType: 0~generic raster image 3~drawing, scanning # 8~I/IMAGE and MicroStation Imager 9~ModelView >6 uleshort !0 \b, ApplicationType %u #>6 uleshort x \b, ApplicationType %u # XViewOrigin; Raster grid data X origin #>8 ulequad !0 \b, XViewOrigin %llx # PixelsPerLine is the number of pixels in a scan line of bitmapp >184 ulelong x \b, %u x # NumberOfLines is height of the raster data in scanlines >188 ulelong x %u # DeviceResolution; resolution of scanning device # positive indicates number of micros between lines; negative indicates DPI #>192 leshort x \b, DeviceResolution %d # ScanlineOrient indicates the origin and the orientation of the scan lines #>194 ubyte x \b, ScanlineOrient %x >194 ubyte x \b, orientation >194 ubyte &0x01 right >194 ubyte ^0x01 left >194 ubyte &0x02 down >194 ubyte ^0x02 top >194 ubyte &0x04 horizontal >194 ubyte ^0x04 vertical # ScannableFlag; Scanline indexing method used #>195 ubyte !0 \b, ScannableFlag %#x # RotationAngle; Rotation angle of raster data #>196 ubequad !0 \b, RotationAngle %#llx # SkewAngle; Skew angle of raster data #>204 ubequad !0 \b, SkewAngle %llx # DataTypeModifier; Additional raster data format info #>212 uleshort !0 \b, DataTypeModifier %#4.4x # DesignFile[66]; Name of the design file >214 string >\0 \b, DesignFile %-.66s # DatabaseFile[66]; Name of the database file >280 string >\0 \b, DatabaseFile %-.66s # ParentGridFile[66]; Name of parent grid file >346 string >\0 \b, ParentGridFile %-.66s # FileDescription[80]; Text description of file and contents >412 string >\0 \b, FileDescription %-.80s # MinValue #>492 ubequad !0 \b, MinValue %#llx # MaxValue #>500 ubequad !0 \b, MaxValue %#llx # Reserved[3]; Unused (always 0) #>508 ubelong&0xFFffFF00 x \b, RESERVED %8.8x # GridFileVersion; Grid File Version like 2 3 #>511 ubyte x \b, GridFileVersion %x # AutoCAD # Merge of the different contributions and updates from https://en.wikipedia.org/wiki/Dwg # and https://www.iana.org/assignments/media-types/image/vnd.dwg 0 string MC0.0 DWG AutoDesk AutoCAD Release 1.0 !:mime image/vnd.dwg 0 string AC1.2 DWG AutoDesk AutoCAD Release 1.2 !:mime image/vnd.dwg 0 string AC1.3 DWG AutoDesk AutoCAD Release 1.3 !:mime image/vnd.dwg 0 string AC1.40 DWG AutoDesk AutoCAD Release 1.40 !:mime image/vnd.dwg 0 string AC1.50 DWG AutoDesk AutoCAD Release 2.05 !:mime image/vnd.dwg 0 string AC2.10 DWG AutoDesk AutoCAD Release 2.10 !:mime image/vnd.dwg 0 string AC2.21 DWG AutoDesk AutoCAD Release 2.21 !:mime image/vnd.dwg 0 string AC2.22 DWG AutoDesk AutoCAD Release 2.22 !:mime image/vnd.dwg 0 string AC1001 DWG AutoDesk AutoCAD Release 2.22 !:mime image/vnd.dwg 0 string AC1002 DWG AutoDesk AutoCAD Release 2.50 !:mime image/vnd.dwg 0 string AC1003 DWG AutoDesk AutoCAD Release 2.60 !:mime image/vnd.dwg 0 string AC1004 DWG AutoDesk AutoCAD Release 9 !:mime image/vnd.dwg 0 string AC1006 DWG AutoDesk AutoCAD Release 10 !:mime image/vnd.dwg 0 string AC1009 DWG AutoDesk AutoCAD Release 11/12 !:mime image/vnd.dwg # 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/ # AutoCad, from Nahuel Greco # AutoCAD DWG versions R12/R13/R14 (www.autodesk.com) 0 string AC1012 DWG AutoDesk AutoCAD Release 13 !:mime image/vnd.dwg 0 string AC1013 DWG AutoDesk AutoCAD Release 13c3 !:mime image/vnd.dwg 0 string AC1014 DWG AutoDesk AutoCAD Release 14 !:mime image/vnd.dwg 0 string AC1015 DWG AutoDesk AutoCAD 2000 !:mime image/vnd.dwg # A new version of AutoCAD DWG # Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru, # ICQ 358572321) # From various sources like: # https://autodesk.blogs.com/between_the_lines/autocad-release-history.html 0 string AC1018 DWG AutoDesk AutoCAD 2004/2005/2006 !:mime image/vnd.dwg 0 string AC1021 DWG AutoDesk AutoCAD 2007/2008/2009 !:mime image/vnd.dwg 0 string AC1024 DWG AutoDesk AutoCAD 2010/2011/2012 !:mime image/vnd.dwg 0 string AC1027 DWG AutoDesk AutoCAD 2013-2017 !:mime image/vnd.dwg # From GNU LibreDWG 0 string AC1032 DWG AutoDesk AutoCAD 2018/2019/2020 !:mime image/vnd.dwg 0 string AC1035 DWG AutoDesk AutoCAD 2021 !:mime image/vnd.dwg # KOMPAS 2D drawing from ASCON # This is KOMPAS 2D drawing or fragment of drawing but is not detailed nor # gathered nor specification # ASCON https://ascon.net/main/ in English, # https://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, https://vkontakte.ru/id16076543) # From: # https://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. # # 3DS (3d Studio files) 0 leshort 0x4d4d >6 leshort 0x2 >>8 lelong 0xa >>>16 leshort 0x3d3d 3D Studio model # Beat sgi MMV !:strength +20 !:mime image/x-3ds !:ext 3ds # MegaCAD 2D/3D drawing (.prt) # https://megacad.de/ # From: Markus Heidelberg <markus.heidelberg@web.de> 0 string MegaCad23\0 MegaCAD 2D/3D drawing # Hoops CAD files # https://docs.techsoft3d.com/visualize/3df/latest/build/general/hsf/\ # HSF_architecture.html # Stephane Charette <stephane.charette@gmail.com> 0 string ;;\040HSF\040V OpenHSF (Hoops Stream Format) >7 regex/9 V[.0-9]{4,5}\040 %s !:ext hsf # AutoCAD Drawing Exchange Format # Update: Joerg Jenderek # URL: http://fileformats.archiveteam.org/wiki/DXF # https://en.wikipedia.org/wiki/AutoCAD_DXF # Reference: http://mark0.net/download/triddefs_xml.7z/defs/d/ # dxf-var0.trid.xml dxf-var0u.trid.xml dxf-var2.trid.xml dxf-var2u.trid.xml # Note: called "AutoCAD Drawing eXchange Format" by TrID and # "Drawing Interchange File Format (ASCII)" by DROID # GRR: some samples does not match 1st test like: abydos.dxf 0 regex \^[\ \t]*0\r?\000$ >1 regex \^[\ \t]*SECTION\r?$ >>2 regex \^[\ \t]*2\r?$ # GRR: some samples without HEADER section like: airplan2.dxf >>>3 regex \^[\ \t]*HEADER\r?$ AutoCAD Drawing Exchange Format #!:mime application/x-dxf !:mime image/vnd.dxf !:ext dxf # DROID PUID fmt/64 fmt-64-signature-id-99.dxf >>>>&1 search/8192 MC0.0 \b, 1.0 # DROID PUID fmt/65 fmt-65-signature-id-100.dxf >>>>&1 search/8192 AC1.2 \b, 1.2 # DROID PUID fmt/66 fmt-66-signature-id-101.dxf >>>>&1 search/8192 AC1.3 \b, 1.3 # DROID PUID fmt/67 fmt-67-signature-id-102.dxf >>>>&1 search/8192 AC1.40 \b, 1.4 # DROID PUID fmt/68 fmt-68-signature-id-103.dxf >>>>&1 search/8192 AC1.50 \b, 2.0 # DROID PUID fmt/69 fmt-69-signature-id-104.dxf >>>>&1 search/8192 AC2.10 \b, 2.1 # DROID PUID fmt/70 fmt-70-signature-id-105.dxf >>>>&1 search/8192 AC2.21 \b, 2.2 # DROID PUID fmt/71 fmt-71-signature-id-106.dxf >>>>&1 search/8192 AC1002 \b, 2.5 # DROID PUID fmt/72 fmt-72-signature-id-107.dxf >>>>&1 search/8192 AC1003 \b, 2.6 # DROID PUID fmt/73 fmt-73-signature-id-108.dxf >>>>&1 search/8192 AC1004 \b, R9 >>>>&1 search/8192 AC1006 \b, R10 # http://cd.textfiles.com/amigaenv/DXF/OBJEKTE/LASTMINUTE/apple.dxf #>>>>&1 search/8192 AC1008 \b, Rfoo >>>>&1 search/8192 AC1009 \b, R11/R12 >>>>&1 search/8192 AC1012 \b, R13 >>>>&1 search/8192 AC1013 \b, R13c3 >>>>&1 search/8192 AC1014 \b, R14 >>>>&1 search/8192 AC1015 \b, version 2000 >>>>&1 search/8192 AC1018 \b, version 2004 >>>>&1 search/8192 AC1021 \b, version 2007 >>>>&1 search/8192 AC1024 \b, version 2010 >>>>&1 search/8192 AC1027 \b, version 2013 >>>>&1 search/8192 AC1032 \b, version 2018 >>>>&1 search/8192 AC1035 \b, version 2021 # The Sketchup 3D model format https://www.sketchup.com/ 0 string \xff\xfe\xff\x0e\x53\x00\x6b\x00\x65\x00\x74\x00\x63\x00\x68\x00\x55\x00\x70\x00\x20\x00\x4d\x00\x6f\x00\x64\x00\x65\x00\x6c\x00 SketchUp Model !:mime application/vnd.sketchup.skp !:ext skp 4 regex/b P[0-9][0-9]\\.[0-9][0-9][0-9][0-9]\\.[0-9][0-9][0-9][0-9]\\.[0-9] NAXOS CAD System file from version %s !:strength +40 # glTF (GL Transmission Format) - by the Khronos Group # Reference: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#glb-file-format-specification 0 string glTF glTF binary model >4 ulelong x \b, version %d >8 ulelong x \b, length %d bytes !:mime model/gltf-binary !:ext glb # FBX (FilmBoX) - by Kaydara/Autodesk # Reference: https://code.blender.org/2013/08/fbx-binary-file-format-specification 0 string Kaydara\ FBX\ Binary\ \ \0 Kaydara FBX model, >&2 ulelong x version %d !:ext fbx # PLY (Polygon File Format/Stanford Triangle Format) - by Greg Turk # Reference: https://web.archive.org/web/20161204152348/http://www.dcs.ed.ac.uk/teaching/cs4/www/graphics/Web/ply.html 0 string ply\n PLY model, !:ext ply >4 string format\ ascii\ ASCII, >>&0 regex/6 [0-9.]+ version %s >4 string format\ binary binary, >>&0 string _little_endian\ little endian, >>>&0 regex/6 [0-9.]+ version %s >>&0 string _big_endian\ big endian, >>>&0 regex/6 [0-9.]+ version %s # VRML (Virtual Reality Modeling Language) - by the Web3D Consortium # From: Michel Briand <michelbriand@free.fr> # Reference: https://www.web3d.org/standards 0 string/w #VRML\ V1.0\ ascii VRML 1 file !:mime model/vrml !:ext wrl 0 string/w #VRML\ V2.0\ utf8 ISO/IEC 14772 VRML 97 file !:mime model/vrml !:ext wrl # X3D, VRML encoded 0 string #X3D X3D (Extensible 3D) model, VRML format >4 string V >>5 regex/6 [0-9.]+ \b, version %s !:mime model/x3d+vrml !:ext x3dv ## XML-based 3D CAD Formats # From: Michel Briand <michelbriand@free.fr>, Oliver Galvin <odg@riseup.net> 0 string/w \<?xml\ version= !:strength + 5 # X3D (Extensible 3D) # Schema: https://www.web3d.org/specifications/x3d-3.2.dtd # MIME Type: https://www.iana.org/assignments/media-types/model/x3d+xml # Example: https://www.web3d.org/x3d/content/examples/Basic/course/CreateX3DFromStringRandomSpheres.x3d >20 search/1000/w \<!DOCTYPE\ X3D X3D (Extensible 3D) model, XML document !:mime model/x3d+xml !:ext x3d # COLLADA (COLLAborative Design Activity) - by the Khronos Group # Schema: http://www.collada.org/2005/11/COLLADASchema # Reference: https://www.khronos.org/collada >20 search/1000/w \<COLLADA COLLADA model, XML document !:mime model/vnd.collada+xml !:ext dae # 3MF (3D Manufacturing Format) - by the 3MF Consortium # Schema: http://schemas.microsoft.com/3dmanufacturing/core/2015/02 # Reference: https://3mf.io/specification >20 search/1000/w xmlns="http://schemas.microsoft.com/3dmanufacturing 3MF (3D Manufacturing Format) model, XML document !:mime model/3mf !:ext 3mf # AMF (Additive Manufacturing File) # Reference: https://www.astm.org/Standards/ISOASTM52915.htm >20 search/1000/w \<amf AMF (Additive Manufacturing Format) model, XML document !:mime application/x-amf !:ext amf # AutoCAD Slide # Screen captures created by MSLIDE, viewed with VSLIDE # Spec: http://www.martinreddy.net/gfx/2d/SLD.txt # PRONOM: x-fmt/105 0 string AutoCAD\ Slide\r\n\x1a\0 AutoCAD Slide, !:mime image/x-sld !:ext sld >17 byte 0x56 version 2 >29 leshort 0x1234 \b, little-endian >29 beshort 0x1234 \b, big-endian