public void SetupTrackTimes()
{
var fcol = sdf.GetFloatCol("Elaptime");
var(fmin, imin, fmax, imax) = sdf.GetMinMax <float>(fcol);
//minTrackTime = fmin / avaSecpersec;
minTrackTime = fmin;
minTrackIdx = imin;
//maxTrackTime = fmax / avaSecpersec;
maxTrackTime = fmax;
maxTrackIdx = imax;
totalTrackIdx = sdf.Nrow();
Debug.Log($"Track {name} mintime:{minTrackTime} maxtime:{maxTrackTime} imin:{minTrackIdx} imax:{maxTrackIdx} nrow:{totalTrackIdx} avaSecpersec:{avaSecpersec}");
}