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Changelog

Source: NEWS.md

ieegio 0.0.9

  • Fixed CRAN check issues
  • Added volume and surface related functions as MCP tools (can be loaded via package ravepipeline and ellmer)

ieegio 0.0.8

CRAN release: 2026-01-11

  • Added new_space and as_ieegio_transform to define coordinate spaces and chain transforms
  • Added io_read_ants_transform to read ANTs affine and displacement field transforms
  • Added io_read_flirt_transform to read FSL FLIRT affine transforms
  • Added volume_to_surface and surface_to_surface for mapping data between volumes and surfaces
  • Fixed point transform ambiguity when chaining transforms with different interpretations
  • Improved plot.ieegio_volume intensity windowing using percentile-based display range (2-98 percentiles), following conventions from FSLeyes, AFNI, MRIcroGL, and SPM
  • Auto-detection for CT vs MRI data: excludes zeros by default but includes them when lower percentile is below -500 (indicating CT with -1024 background)
  • Statistical overlay detection: applies symmetric range for z-score-like data
  • Values outside display range are now clamped to boundary colors instead of rendering as transparent

ieegio 0.0.7

  • Added as_nifti_header as a workaround when RNifti is missing (not installed or running in WebAssembly)
  • Added automatic checks when pushing commits the repository to Github

ieegio 0.0.6

CRAN release: 2025-10-24

  • Added write_edf to save signals as continuous EDF format
  • Added YBA atlas (690 segments) to example data
  • Improved HDF5 checking error messages

ieegio 0.0.5

CRAN release: 2025-07-22

  • Added LazyFST class
  • Fixed a bug where gzipped is ignored in io_write_nii.array
  • LazyH5 fall back to alternatives when HDF5 is not supported in wasm
  • Plotting surfaces use r3js by default
  • Fixed BrainVision annotation bugs
  • Supported writing to STL format (to support importing to BrainLab)
  • Added supports to read streamlines data (trk, tck, tt, vtk)
  • Writing to freesurfer surfaces also appends orientation information at the end.

ieegio 0.0.4

CRAN release: 2025-03-07

  • Added merge support for both volume and surface objects; for surface objects, users can choose whether to merge the objects in model or world space
  • Added dependency ravetools to help speed up sample volumes using C++
  • Fixed missing transform issue in writing to GIfTI format
  • Fixed write_surface not working when writing to FreeSurfer measurement (curvature) format
  • Fixed a typo that caused setting volume data resulting in errors
  • as_ieegio_surface does not require vertices

ieegio 0.0.3

CRAN release: 2025-01-13

  • Cleaned h5py loader
  • mat_to_quaternion always returns non-negative w now
  • Added generics dim and length to volume object
  • Fixed annotation issues in EDF format
  • Time selection is double-sided using greater equal and less equal signs
  • Added more sample data
  • Supports colored (RGB[A]) formats
  • Fixed color intensity when cal_min and cal_max is set
  • Using r3js for visualizing surfaces
  • Added resample_volume to sample images (currently only nearest neighbor)
  • Added burn_volume to burn contacts (positions given in the image native RAS coordinate) with any given colors
  • Fixed io_h5_names returning wrong names when using with h5py
  • Exported internal class LazyH5 for down-stream packages
  • Added as_ieegio_volume and as_ieegio_surface to enclose volume or surface data
  • Added a flag to disable using Python

ieegio 0.0.2

CRAN release: 2024-10-31

  • Added h5py as an alternative back-end support
  • Fixed a bug where images are not loaded correctly due to image format being ignored
  • Fixed Torig (index to tkr coordinate transform) issue
  • Fixed a global variable issue
  • Fixed a bug where file name is not respected

ieegio 0.0.1

CRAN release: 2024-09-16

  • Initial CRAN submission.