Format
Initial Graphics Exchange Specification (IGES)
Summary
- Name
- Initial Graphics Exchange Specification (IGES)
- Version
- 5.x
- Identifiers
-
- MIME: model/iges
- PUID: x-fmt/158
- Format type
- Model
- Description
- Initial Graphics Exchange Specification, or IGES, establishes information structures for the digital representation and exchange of product definition data. It supports exchanging this data among Computer-Aided Design and Computer-Aided Manufacturing (CAD and CAM, respectively) systems. IGES defines file structure and language formats to represent geometric, topographical, and non-geometric product definition data. These formats are independent of the modeling method used, and they support data exchange using physical media or electronic communication protocols.
- Release date
- 01 Dec 1999
- Format encoding
- Text
- File extensions
-
iges,igs - Submitted by
- The National Archives and Records Administration / The National Archives and Records Administration
Internal signatures
Initial Graphics Exchange Specification
- Description
- Offset 72 bytes, then section identification character S for Start section; Columns 74-80, section sequence number 1 preceded by leading blanks or zeros; cr/lf or nl; (Column 73, section identification character S for Start section; Columns 74-80, section sequence number 2 preceded by leading blanks or zeros) or (Column 73, section identification character G for Global section; Columns 74-80, section sequence number 1 preceded by leading blanks or zeros)
- Provenance
- Signature identified by Georgia Tech Research Institute. Updated by Digital preservation department. Later updated by Canadian Centre for Architecture September 2018.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 72
- Max offset
- None
- Byte Sequence
53(202020202020|303030303030)31(0D0A|0D|0A){72}(5320202020202032|5330303030303032|4720202020202031|4730303030303031)- Endianness
- None
Changelog
-
V94
- Release date
- 17 September 2018
-
Updated
Initial Graphics Exchange Specification (IGES) 5.x: Added hex value '0D' as variant to new line character in signature. Submitted by the Canadian Centre for Architecture.
-
V84
- Release date
- 21 January 2016
-
Updated
Initial Graphics Exchange Specification (IGES) 5.x: Added format type 'Model'.
-
V62
- Release date
- 28 August 2012
-
Updated
Initial Graphics Exchange Specification (IGES): Description information submitted by the National Archives and Records Administration.
-
V60
- Release date
- 11 June 2012
-
Updated
Initial Graphics Exchange Specification: Existing signature refined through PRONOM Research.
-
V51
- Release date
- 15 July 2011
-
Added signature
Initial Graphics Exchange Specification: Signature submitted by Georgia Tech Research Institute, USA.