public SwipeState(SwipeState s)
{
this._start = s._start;
this._end = s._end;
this._pos = s.Pos;
this._loc = s._loc;
}
public SwipeState(SwipePosition pos, DateTime start, DateTime end, Point3D loc)
{
this._start = start;
this._end = end;
this._pos = pos;
this._loc = loc;
}