get.dti.trk.endianness: Determine endianness of TRK file.

In freesurferformats: Read and Write 'FreeSurfer' Neuroimaging File Formats

Determine endianness of TRK file.

Description

Determine endianness of TRK file.

Usage

get.dti.trk.endianness(filepath)

Arguments

filepath

character string, path to file in trk format. Gzip-compressed files are supported as well (the compression is detected from the file content, so a .trk.gz file is read like any other TRK file), which is convenient since tractograms are large and are regularly stored compressed. Note that track files cannot be compressed on the fly for other software: the TrackVis tools and MRtrix do not read compressed track files.

Value

endina character string. one of 'little' or 'big'.

Note

This function checks endiannes via the header size field of the file header, which must be 1000 for TRK files when read with correct enianness. It will stop if the file is not in TRK format, i.e., if the field is not 1000 in any endianness.

freesurferformats documentation built on Sept. 25, 2026, 1:07 a.m.