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Format

C3D File Format

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Summary

Name
C3D File Format
Identifiers
PUID: fmt/1130
Format type
Dataset
Description
C3D, or Coordinate 3D, is a biomechanics data file format that is a component of the family of file formats developed for the AMASS photogrammetry software system. C3D format provides a means for storing 3D coordinate and analog data, together with all associated parameters, for a single measurement trial.
File extensions
c3d
Source
University of Edinburgh / University of Edinburgh

Internal signatures

C3D

Note
BOF: 0x0250 (magic plus pointer to first block of parameter section), {22} a block of 270 null bytes - we're using the first ten here for signature brevity, byte at 0x203 is either 0x54, 0x55, 0x56 representing processor type. String beginning at 0x516 either POINT or ANALOG. Https://www.c3d.org/HTML/default.htm

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
0250{22}00000000000000000000{481}(54|55|56){2}(504F494E54|414E414C4F47)
Endianness
None

Changelog

  • Added in V93

    Release date
    30 November 2017

    C3D File Format: Signature developed with University of Edinburgh.

    C3D File Format: Full entry added. Submitted by University of Edinburgh and previously requested by NARA Information Services/Applied Research Division, The National Archives and Records Administration.