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FiffDigitizerData

Namespace: FIFFLIB  ·  Library: FIFF Library

#include <fiff/fiff_digitizer_data.h>

class FIFFLIB::FiffDigitizerData

Registration-ready digitization data: dig points, device→head transform and HPI fit metadata.

Pairs a FiffDigPointSet with the FiffCoordTrans that maps it into the head frame, plus optional HPI goodness-of-fit values. Used by the coregistration GUI and by every downstream tool that needs a single self-contained record describing where a subject's head sat in the helmet for one measurement.

Public Methods​

FiffDigitizerData()​

Constructs the FiffDigitizerData.

FiffDigitizerData(p_FiffDigitizerData)​

Copy constructor.

Parameters:

  • p_FiffDigitizerData : const FiffDigitizerData & Digitization point descriptor which should be copied.

operator=(rhs)​

Copy assignment operator (deep-copies unique_ptr members).

Parameters:

Returns:

FiffDigitizerData(p_IODevice)​

Constructs a FiffDigitizerData by reading from an IO device.

Parameters:

  • p_IODevice : QIODevice & Input device to read data from.

~FiffDigitizerData()​

Destroys the digitization point description.

print()​

Prints class contents.

nfids()​

Returns the number of MRI fiducial points (cardinal points transformed into MRI coordinates via head_mri_t_adj).

Kept as nfids() for API compatibility with the original MNE C code (digitizerDataRec.nfids in mne_analyze/analyze_types.h).

Returns:

  • int — Number of fiducials in mri_fids.

pickCardinalFiducials()​

Extracts cardinal digitizer points (LPA, Nasion, RPA) from the digitizer point list and transforms them into MRI coordinates using head_mri_t_adj, populating the mri_fids list.

This is a port of the original C function update_fids_from_dig_data from mne_analyze/adjust_alignment.c.

Authors of this file​