public double GetSpeed(WatchInfo info) => (Math.Atan(GetDistance(info) / 10.0d / 570.0d) * 180 / Math.PI) / ((this.Time - info.Time) / 1000);
public List <WatchInfo> LoadInfo() => WatchInfo.Load(Video.Folder + Video.Name + "/" + Name);
public double GetDistance(WatchInfo info) => Math.Sqrt(Math.Pow(Math.Abs(this.Xm - info.Xm), 2) + Math.Pow(Math.Abs(this.Ym - info.Ym), 2));