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Supported formats for digitized 3D locations
============================================

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MNE-Python can load 3D point locations obtained by digitization systems.
Such files allow to obtain a :class:`montage <mne.channels.DigMontage>`
that can then be added to :class:`~mne.io.Raw` objects with the
:meth:`~mne.io.Raw.set_montage`. See the documentation for each reader
function for more info on reading specific file types.

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=================  ================  ==============================================
Vendor             Extension(s)      MNE-Python function
=================  ================  ==============================================
Neuromag           .fif              :func:`mne.channels.read_dig_fif`

Polhemus ISOTRAK   .hsp, .elp, .eeg  :func:`mne.channels.read_dig_polhemus_isotrak`

EGI                .xml              :func:`mne.channels.read_dig_egi`

MNE-C              .hpts             :func:`mne.channels.read_dig_hpts`

Brain Products     .bvct             :func:`mne.channels.read_dig_captrack`
=================  ================  ==============================================

To load Polhemus FastSCAN files you can use
:func:`montage <mne.channels.read_polhemus_fastscan>`.

It is also possible to make a :class:`montage <mne.channels.DigMontage>`
from arrays with :func:`mne.channels.make_dig_montage`.
