public PointF GetSlopePupilFullness(EyeEnum eye, int numSamples)
{
TrackData[] tds = db.ToArray();
var points = new PointF[numSamples];
var direction = new PointF();
var pointOnLine = new PointF();
for (int i = tds.Length - 1; i >= tds.Length - numSamples; i--)
{
if (eye == EyeEnum.Left && tds[i].PupilDataLeft.Blob != null)
{
points[tds.Length - i - 1] = new PointF(i, (float)tds[i].PupilDataLeft.Blob.Fullness);
}
}
PointCollection.Line2DFitting(points, DIST_TYPE.CV_DIST_L2, out direction, out pointOnLine);
return(direction);
}