台风路径的绘制以及会商PPT的智能制作 第13页

                if (radius10 != 0)
                {
                }

                #endregion

                #region 设置预报点标注样式

                TextGeometry textGeo = new TextGeometry(Convert.ToDateTime(ybData.Rows[i]["RQSJ"].ToString()).ToString("dd日HH时(预报)"));
                textGeo.Font = new Font("Time New Roman", 14);
                textGeo.Point = pt;
                textGeo.ForeColor = Color.Black;
                textGeo.TextPosition = TextPosition.Right;
                textGeo.Name = ybData.Rows[i]["hourFlag"].ToString();
                textGeo.Tag = ybData.Rows[i]["hourFlag"].ToString();
                legendLayer.AddGeometry(textGeo);

                #endregion
            }

            foreach (TFPolyline line in tflineList)
            {
                ybLayer.AddGeometry(line);
            }

            foreach (ArrowGeometry arrow in arrowList)
            {
                ybLayer.AddGeometry(arrow);
            }

            foreach (TFPoint point in tfPointList)
            {
                ybLayer.AddGeometry(point);
            }

            SetYBStatus(type);
        }
3、清除台风
  public void ClearTF()
  {
   TrackingLayer lsLayer = MapInstance.Instance.Layers["台风历史路径"] as TrackingLayer;
   TrackingLayer legendLayer = MapInstance.Instance.Layers["台风点标注"] as TrackingLayer;
   TrackingLayer ybLayer = MapInstance.Instance.Layers["台风预报路径"] as TrackingLayer;
            TrackingLayer fqLayer = MapInstance.Instance.Layers["台风风圈"] as TrackingLayer;

   lsLayer.ClearGeometries();
   legendLayer.ClearGeometries();
   ybLayer.ClearGeometries();
            fqLayer.ClearGeometries();

            lsPointList.Clear();
            ybPointList.Clear();
            lsLineList.Clear();
            ybLineList.Clear();
            arrayList.Clear();
            LegendList.Clear();
  }
4、经过差值计算获取天文潮数据
        public DataTable GetSeaTideDataAfferDiff(string stationNO, DateTime beginTime, DateTime endTime)
        {
            //每刻度对应的时间为400秒，即1/9小时
            const int UINTTIME = 400;

            DataTable table = GetSeaTideData(stationNO, beginTime, endTime);//数据库得到的都是整点的潮位数据

            List<System.Drawing.Point> points = new List<System.Drawing.Point>();
            int xAxes = 0; //表示X轴的最大刻度

            if (table.Rows.Count > 0)
            {
                foreach (DataRow row in table.Rows)
                {
                    int y = (int)(Convert.ToDouble(row["TideHeight"].ToString()) * 100);
                    System.Drawing.Point pt = new Point(xAxes, y);//每个整点在曲线上对应的点，此时每个点的间隔的X轴距离为一小时
                    points.Add(pt);

                    xAxes += 9;

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