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Format

Computer Graphics Metafile (Binary)

Download XML

Summary

Name
Computer Graphics Metafile (Binary)
Version
4
Identifiers
  • PUID: fmt/306
  • MIME: image/cgm; version=4
Format type
  • Image (Raster)
  • Image (Vector)
  • Text (Structured)
Description
This is an outline record only, and requires further details, research or authentication to provide information that will enable users to further understand the format and to assess digital preservation risks associated with it if appropriate. If you are able to help by supplying any additional information concerning this entry, please return to the main PRONOM page and select ‘Add an Entry’.
File extensions
cgm
Source
Georgia Tech Research Institute / Georgia Tech Research Institute

Internal signatures

Computer Graphics Metafile (Binary) Version 4

Note
Begin Metafile command header followed by Metafile name (possibly empty) followed by Metafile Description which includes Metafile Version command header (hex 1022) and version number 4. Trailer End Metafile command header (0040) that may be followed by nulls.

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
None
Byte Sequence
00[20:3F]*10220004
Endianness
Little-endian
Min Frag Length
Absolute from EOF
Offset
0
Max offset
1024
Byte Sequence
0040
Endianness
Little-endian

Changelog

  • Added in V45

    Release date
    6 December 2010

    Computer Graphics Metafile (Binary) 4: Signature submitted by Georgia Tech Research Institute, USA.

    Computer Graphics Metafile (Binary) 4: Outline entry added. Submission from Georgia Tech Research Institute, USA.