438 lines
17 KiB
Plaintext
438 lines
17 KiB
Plaintext
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#------------------------------------------------------------------------------
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# $File: cad,v 1.31 2022/12/09 15:36:23 christos Exp $
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# autocad: file(1) magic for cad files
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#
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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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# https://filext.com/detaillist.php?extdetail=DGN
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# https://filext.com/detaillist.php?extdetail=CIT
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#
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# https://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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# https://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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#
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# URL: https://en.wikipedia.org/wiki/MicroStation
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# reference: http://dgnlib.maptools.org/dgn.html
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# http://dgnlib.maptools.org/dl/ref18.pdf
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# Update: Joerg Jenderek
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# Note: verfied by command like `dgndump seed2d_b.dgn`
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# test for level 8 and type 5 or 9
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0 beshort&0x3F73 0x0801
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# level of element like 8
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#>0 ubyte&0x3F x \b, level %u
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#>0 ubyte &0x80 \b, complex
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#>0 ubyte &0x40 \b, reserved
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# type of element 9~TCB 8~Digitizer setup 5~Group Data Elements
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#>1 ubyte&0x7F x \b, type %u
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# words to follow in element: 17H~CEL library 2FEh~DGN 9FEh,DFEh~CIT
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#>2 uleshort x \b, words %#4.4x to follow
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# test for 3 reserved 0 bytes in CIT or "conversion" in ViewInfo structure (DGN CEL)
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#>508 ubelong x \b, RESERVED %8.8x
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>508 ubelong&0xFFffFF00 =0
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# test for level 8 and type 9 for INGR raster image
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>>0 beshort 0x0809
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# test for length of 1st element is multiple of blocks a 512 bytes
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>>>2 ubyte 0xfe
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>>>>0 use ingr-image
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# test for DGN or CEL by jump words (uleshort) forward to next element
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>(2.s*2) ulong x
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# 2nd element type: 8~Digitizer~DesiGNfile 1~library cell header other~CIT
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#>>&1 ubyte&0x7F x \b, 2nd type %u
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# DGN
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>>&1 ubyte&0x7F 8
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>>>2 uleshort =0x02FE Bentley/Intergraph Microstation CAD drawing
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!:mime application/x-bentley-dgn
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!:ext dgn
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# The 0x40 bit of this byte is 1 if the file is 3D, otherwise 0
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>>>>1214 ubyte &0x40 3D
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>>>>1214 ubyte ^0x40 2D
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# 2 chars for name of subunits like ft FT in IN mu m mm '\0 '\040
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>>>>1120 string x \b, units %-.2s
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# 2 chars for name of master unit like IN in ML SU tn th TH HU mm "\0 "\040 \0\0
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>>>>1122 string >\0 %-.2s
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#>>>>1120 ubelong x \b, units %#8.8x
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# element range low,high x y z like xlow=0 08010000h 01080000h
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#>>>>4 ubelong !0 \b, xlow %8.8x
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#>>>>8 ubelong !0 \b, ylow %8.8x
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#>>>>12 ubelong !0 \b, zlow %8.8x
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#>>>>16 ubelong !0 \b, xhigh %8.8x
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#>>>>20 ubelong !0 \b, yhigh %8.8x
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#>>>>24 ubelong !0 \b, zhigh %8.8x
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# graphic group number; all other elements in that group have same non-0 number
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#>>>>28 leshort x \b, grphgrp %#4.4x
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# words to optional attribute linkage
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#>>>>30 ubyte x \b, attindx \%o
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#>>>>31 ubyte x \b\%o
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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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# elements properties indicator
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#>>>>32 uleshort !0 \b, properties %#4.4x
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# class 0~Primary
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#>>>>>32 uleshort&0x000F !0 \b, class %#4.4x
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# Symbology
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#>>>>>34 uleshort x \b, Symbology %#4.4x
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# test for 2nd element type 1~library cell header
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>>&1 ubyte&0x7F 1
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# test for 1st element with level 8 and type 5 for cell library
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>>>0 beshort 0x0805 Bentley/Intergraph Microstation CAD cell library
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!:mime application/x-bentley-cel
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!:ext cel
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#
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# URL: http://fileformats.archiveteam.org/wiki/Intergraph_Raster
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# reference: https://web.archive.org/web/20140903185431/
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# http://oreilly.com/www/centers/gff/formats/ingr/index.htm
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# note: verfied by command like `nconvert -fullinfo LONGLAT.CIT`
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# display information for intergraph raster bitmap
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0 name ingr-image
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# in 5.37 "Microstation CITFile" "Bentley/Intergraph MicroStation CIT raster CAD"
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# DataTypeCode indicates format, depth of the pixel data and used compression
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>4 uleshort x Intergraph raster image
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>>4 uleshort 0x0009 \b, Run-Length Encoded 1-bit
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!:mime image/x-intergraph-rle
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!:ext rel
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>>4 uleshort 0x0018 \b, CCITT Group 4 1-bit
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!:mime image/x-intergraph-cit
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!:ext cit
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>>4 uleshort 27 \b, Adaptive RLE RGB
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!:mime image/x-intergraph-rgb
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!:ext rgb
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>>4 default x
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>>>4 uleshort x \b, Type %u
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!:mime image/x-intergraph
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# TODO:
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#>4 uleshort 0 \b, no data
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# ...
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#>4 uleshort 0x0045 \b, Continuous Tone CMKY (Uncompressed)
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# ApplicationType: 0~generic raster image 3~drawing, scanning
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# 8~I/IMAGE and MicroStation Imager 9~ModelView
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>6 uleshort !0 \b, ApplicationType %u
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#>6 uleshort x \b, ApplicationType %u
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# XViewOrigin; Raster grid data X origin
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#>8 ulequad !0 \b, XViewOrigin %llx
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# PixelsPerLine is the number of pixels in a scan line of bitmapp
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>184 ulelong x \b, %u x
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# NumberOfLines is height of the raster data in scanlines
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>188 ulelong x %u
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# DeviceResolution; resolution of scanning device
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# positive indicates number of micros between lines; negative indicates DPI
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#>192 leshort x \b, DeviceResolution %d
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# ScanlineOrient indicates the origin and the orientation of the scan lines
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#>194 ubyte x \b, ScanlineOrient %x
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>194 ubyte x \b, orientation
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>194 ubyte &0x01 right
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>194 ubyte ^0x01 left
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>194 ubyte &0x02 down
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>194 ubyte ^0x02 top
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>194 ubyte &0x04 horizontal
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>194 ubyte ^0x04 vertical
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# ScannableFlag; Scanline indexing method used
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#>195 ubyte !0 \b, ScannableFlag %#x
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# RotationAngle; Rotation angle of raster data
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#>196 ubequad !0 \b, RotationAngle %#llx
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# SkewAngle; Skew angle of raster data
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#>204 ubequad !0 \b, SkewAngle %llx
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# DataTypeModifier; Additional raster data format info
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#>212 uleshort !0 \b, DataTypeModifier %#4.4x
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# DesignFile[66]; Name of the design file
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>214 string >\0 \b, DesignFile %-.66s
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# DatabaseFile[66]; Name of the database file
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>280 string >\0 \b, DatabaseFile %-.66s
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# ParentGridFile[66]; Name of parent grid file
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>346 string >\0 \b, ParentGridFile %-.66s
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# FileDescription[80]; Text description of file and contents
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>412 string >\0 \b, FileDescription %-.80s
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# MinValue
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#>492 ubequad !0 \b, MinValue %#llx
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# MaxValue
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#>500 ubequad !0 \b, MaxValue %#llx
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# Reserved[3]; Unused (always 0)
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#>508 ubelong&0xFFffFF00 x \b, RESERVED %8.8x
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# GridFileVersion; Grid File Version like 2 3
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#>511 ubyte x \b, GridFileVersion %x
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# AutoCAD
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# Merge of the different contributions and updates from https://en.wikipedia.org/wiki/Dwg
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# and https://www.iana.org/assignments/media-types/image/vnd.dwg
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0 string MC0.0 DWG AutoDesk AutoCAD Release 1.0
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!:mime image/vnd.dwg
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0 string AC1.2 DWG AutoDesk AutoCAD Release 1.2
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!:mime image/vnd.dwg
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0 string AC1.3 DWG AutoDesk AutoCAD Release 1.3
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!:mime image/vnd.dwg
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0 string AC1.40 DWG AutoDesk AutoCAD Release 1.40
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!:mime image/vnd.dwg
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0 string AC1.50 DWG AutoDesk AutoCAD Release 2.05
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!:mime image/vnd.dwg
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0 string AC2.10 DWG AutoDesk AutoCAD Release 2.10
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!:mime image/vnd.dwg
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0 string AC2.21 DWG AutoDesk AutoCAD Release 2.21
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!:mime image/vnd.dwg
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0 string AC2.22 DWG AutoDesk AutoCAD Release 2.22
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!:mime image/vnd.dwg
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0 string AC1001 DWG AutoDesk AutoCAD Release 2.22
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!:mime image/vnd.dwg
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0 string AC1002 DWG AutoDesk AutoCAD Release 2.50
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!:mime image/vnd.dwg
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0 string AC1003 DWG AutoDesk AutoCAD Release 2.60
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!:mime image/vnd.dwg
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0 string AC1004 DWG AutoDesk AutoCAD Release 9
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!:mime image/vnd.dwg
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0 string AC1006 DWG AutoDesk AutoCAD Release 10
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!:mime image/vnd.dwg
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0 string AC1009 DWG AutoDesk AutoCAD Release 11/12
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!:mime image/vnd.dwg
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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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# AutoCad, from Nahuel Greco
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# AutoCAD DWG versions R12/R13/R14 (www.autodesk.com)
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0 string AC1012 DWG AutoDesk AutoCAD Release 13
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!:mime image/vnd.dwg
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0 string AC1013 DWG AutoDesk AutoCAD Release 13c3
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!:mime image/vnd.dwg
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0 string AC1014 DWG AutoDesk AutoCAD Release 14
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!:mime image/vnd.dwg
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0 string AC1015 DWG AutoDesk AutoCAD 2000
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!:mime image/vnd.dwg
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# A new version of AutoCAD DWG
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# Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru,
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# ICQ 358572321)
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# From various sources like:
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# https://autodesk.blogs.com/between_the_lines/autocad-release-history.html
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0 string AC1018 DWG AutoDesk AutoCAD 2004/2005/2006
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!:mime image/vnd.dwg
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0 string AC1021 DWG AutoDesk AutoCAD 2007/2008/2009
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!:mime image/vnd.dwg
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0 string AC1024 DWG AutoDesk AutoCAD 2010/2011/2012
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!:mime image/vnd.dwg
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0 string AC1027 DWG AutoDesk AutoCAD 2013-2017
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!:mime image/vnd.dwg
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# From GNU LibreDWG
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0 string AC1032 DWG AutoDesk AutoCAD 2018/2019/2020
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!:mime image/vnd.dwg
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0 string AC1035 DWG AutoDesk AutoCAD 2021
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!:mime image/vnd.dwg
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# KOMPAS 2D drawing from ASCON
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# This is KOMPAS 2D drawing or fragment of drawing but is not detailed nor
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# gathered nor specification
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# ASCON https://ascon.net/main/ in English,
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# https://ascon.ru/ main site in Russian
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# Extension is CDW for drawing and FRW for fragment of drawing
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# Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru,
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# ICQ 358572321, https://vkontakte.ru/id16076543)
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# From:
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# https://sd.ascon.ru/otrs/customer.pl?Action=CustomerFAQ&CategoryID=4&ItemID=292
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# (in russian) and my experiments
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0 string KF
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>2 belong 0x4E00000C Kompas drawing 12.0 SP1
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>2 belong 0x4D00000C Kompas drawing 12.0
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>2 belong 0x3200000B Kompas drawing 11.0 SP1
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>2 belong 0x3100000B Kompas drawing 11.0
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>2 belong 0x2310000A Kompas drawing 10.0 SP1
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>2 belong 0x2110000A Kompas drawing 10.0
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>2 belong 0x08000009 Kompas drawing 9.0 SP1
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>2 belong 0x05000009 Kompas drawing 9.0
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>2 belong 0x33010008 Kompas drawing 8+
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>2 belong 0x1A000008 Kompas drawing 8.0
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>2 belong 0x2C010107 Kompas drawing 7+
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>2 belong 0x05000007 Kompas drawing 7.0
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>2 belong 0x32000006 Kompas drawing 6+
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>2 belong 0x09000006 Kompas drawing 6.0
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>2 belong 0x5C009005 Kompas drawing 5.11R03
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>2 belong 0x54009005 Kompas drawing 5.11R02
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>2 belong 0x51009005 Kompas drawing 5.11R01
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>2 belong 0x22009005 Kompas drawing 5.10R03
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>2 belong 0x22009005 Kompas drawing 5.10R02 mar
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>2 belong 0x21009005 Kompas drawing 5.10R02 febr
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>2 belong 0x19009005 Kompas drawing 5.10R01
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>2 belong 0xF4008005 Kompas drawing 5.9R01.003
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>2 belong 0x1C008005 Kompas drawing 5.9R01.002
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>2 belong 0x11008005 Kompas drawing 5.8R01.003
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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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# 3DS (3d Studio files)
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0 leshort 0x4d4d
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>6 leshort 0x2
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>>8 lelong 0xa
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>>>16 leshort 0x3d3d 3D Studio model
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# Beat sgi MMV
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!:strength +20
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!:mime image/x-3ds
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!:ext 3ds
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# MegaCAD 2D/3D drawing (.prt)
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# https://megacad.de/
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# From: Markus Heidelberg <markus.heidelberg@web.de>
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0 string MegaCad23\0 MegaCAD 2D/3D drawing
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# Hoops CAD files
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# https://docs.techsoft3d.com/visualize/3df/latest/build/general/hsf/\
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# HSF_architecture.html
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# Stephane Charette <stephane.charette@gmail.com>
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0 string ;;\040HSF\040V OpenHSF (Hoops Stream Format)
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>7 regex/9 V[.0-9]{4,5}\040 %s
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!:ext hsf
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# AutoCAD Drawing Exchange Format
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# Update: Joerg Jenderek
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# URL: http://fileformats.archiveteam.org/wiki/DXF
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# https://en.wikipedia.org/wiki/AutoCAD_DXF
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# Reference: http://mark0.net/download/triddefs_xml.7z/defs/d/
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# dxf-var0.trid.xml dxf-var0u.trid.xml dxf-var2.trid.xml dxf-var2u.trid.xml
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# Note: called "AutoCAD Drawing eXchange Format" by TrID and
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# "Drawing Interchange File Format (ASCII)" by DROID
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# GRR: some samples does not match 1st test like: abydos.dxf
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0 regex \^[\ \t]*0\r?\000$
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>1 regex \^[\ \t]*SECTION\r?$
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>>2 regex \^[\ \t]*2\r?$
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# GRR: some samples without HEADER section like: airplan2.dxf
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>>>3 regex \^[\ \t]*HEADER\r?$ AutoCAD Drawing Exchange Format
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#!:mime application/x-dxf
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!:mime image/vnd.dxf
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!:ext dxf
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# DROID PUID fmt/64 fmt-64-signature-id-99.dxf
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>>>>&1 search/8192 MC0.0 \b, 1.0
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# DROID PUID fmt/65 fmt-65-signature-id-100.dxf
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>>>>&1 search/8192 AC1.2 \b, 1.2
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# DROID PUID fmt/66 fmt-66-signature-id-101.dxf
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>>>>&1 search/8192 AC1.3 \b, 1.3
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# DROID PUID fmt/67 fmt-67-signature-id-102.dxf
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>>>>&1 search/8192 AC1.40 \b, 1.4
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# DROID PUID fmt/68 fmt-68-signature-id-103.dxf
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>>>>&1 search/8192 AC1.50 \b, 2.0
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# DROID PUID fmt/69 fmt-69-signature-id-104.dxf
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>>>>&1 search/8192 AC2.10 \b, 2.1
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# DROID PUID fmt/70 fmt-70-signature-id-105.dxf
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>>>>&1 search/8192 AC2.21 \b, 2.2
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# DROID PUID fmt/71 fmt-71-signature-id-106.dxf
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>>>>&1 search/8192 AC1002 \b, 2.5
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# DROID PUID fmt/72 fmt-72-signature-id-107.dxf
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>>>>&1 search/8192 AC1003 \b, 2.6
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# DROID PUID fmt/73 fmt-73-signature-id-108.dxf
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>>>>&1 search/8192 AC1004 \b, R9
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>>>>&1 search/8192 AC1006 \b, R10
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# http://cd.textfiles.com/amigaenv/DXF/OBJEKTE/LASTMINUTE/apple.dxf
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#>>>>&1 search/8192 AC1008 \b, Rfoo
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>>>>&1 search/8192 AC1009 \b, R11/R12
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>>>>&1 search/8192 AC1012 \b, R13
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>>>>&1 search/8192 AC1013 \b, R13c3
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>>>>&1 search/8192 AC1014 \b, R14
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>>>>&1 search/8192 AC1015 \b, version 2000
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>>>>&1 search/8192 AC1018 \b, version 2004
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>>>>&1 search/8192 AC1021 \b, version 2007
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>>>>&1 search/8192 AC1024 \b, version 2010
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>>>>&1 search/8192 AC1027 \b, version 2013
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>>>>&1 search/8192 AC1032 \b, version 2018
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>>>>&1 search/8192 AC1035 \b, version 2021
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# The Sketchup 3D model format https://www.sketchup.com/
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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
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!:mime application/vnd.sketchup.skp
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!:ext skp
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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
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!:strength +40
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# glTF (GL Transmission Format) - by the Khronos Group
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# Reference: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#glb-file-format-specification
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0 string glTF glTF binary model
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>4 ulelong x \b, version %d
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>8 ulelong x \b, length %d bytes
|
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!:mime model/gltf-binary
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!:ext glb
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|
|
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# 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
|