NivLink¶

NivLink is an open-source Python package developed in the Niv Lab to preprocess EyeLink eyetracking data.

Example¶

import numpy as np
from nivlink import ScreenInfo, align_to_aoi, compute_fixations

## Load example data.
eyepos = np.loadtxt('eyepos.txt')

## Initialize ScreenInfo object.
info = ScreenInfo(100, 100, 500)
info.add_rectangle_aoi(0, 50, 0, 100)
info.add_rectangle_aoi(50, 100, 0, 100)

## Align eye positions to areas of interest (AoI).
aligned = align_to_aoi(eyepos, info)

## Compute fixation times.
fixations = compute_fixations(aligned, info)

For more detailed example use cases, please see the demos folder.

License¶

The project is licensed under the MIT license.