int SubNum       = 3; //每次的下一级别分割区域

        public void ShowXUnit(LynxTime bt, LynxTime et, TimeDimention ct)
        {
            //TimeDimention cDimention = LynxTime.getMaxCrossUnit(XShowBeginTime, XShowEndTime);
            //FirstTopUnitTime = XShowBeginTime.getPastTime(cDimention);
            //LastTopUnitTime = XShowEndTime.getNextTime(cDimention);
            long tn = LynxTime.getUnitNum(bt, et, ct);

            if (tn < 2)
            {
                return;
            }
            long     stepUnitNum = Convert.ToInt64(Math.Ceiling(tn / (double)SubNum));
            LynxTime pastTime    = bt;

            //ShowLabel(pastTime, maxDimention);
            for (int i = 1; i < SubNum; i++)
            {
                LynxTime lt = new LynxTime(bt);
                lt.AddTimeSpan(stepUnitNum * i, ct);

                ShowLabel(lt, ct);
                double sw = getLynxTimeWidth(pastTime, lt);
                if (sw > MinSpace)
                {
                    ShowXUnit(pastTime, lt, LynxTime.getLowTimeDim(maxDimention));
                }
                pastTime = lt;
            }
        }
        public void ShowXUnit()
        {
            Marks.Clear();
            canvasTimeLine.Children.Clear();
            maxDimention     = LynxTime.getMaxCrossUnit(XShowBeginTime, XShowEndTime);
            FirstTopUnitTime = XShowBeginTime.getPastTime(maxDimention);
            LastTopUnitTime  = XShowEndTime.getNextTime(maxDimention);
            TimeUnitNum      = LynxTime.getUnitNum(FirstTopUnitTime, LastTopUnitTime, maxDimention);
            long     stepUnitNum = Convert.ToInt64(Math.Ceiling(TimeUnitNum / (double)SubNum));
            LynxTime pastTime    = FirstTopUnitTime;

            ShowLabel(FirstTopUnitTime, maxDimention);
            for (int i = 1; i < SubNum; i++)
            {
                LynxTime lt = new LynxTime(FirstTopUnitTime);
                lt.AddTimeSpan(stepUnitNum * i, maxDimention);

                ShowLabel(lt, maxDimention);
                LastTopUnitTime = lt;
                double w = getLynxTimeWidth(pastTime, lt);
                if (w > MinSpace)
                {
                    ShowXUnit(pastTime, lt, LynxTime.getLowTimeDim(maxDimention));
                }
                pastTime = lt;
            }
            ShowLabel(LastTopUnitTime, maxDimention);
            //LastTopUnitTime = FirstTopUnitTime + (LastTopUnitTime)XShowEndTime.getNextTime(maxDimention);
            //ShowXUnit(XShowBeginTime, XShowEndTime, canvasTimeLine.Width);
        }