/// <summary>
/// //切换台风
/// </summary>
private void lstTyphoons_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (timer != null)
{
timer.Stop();
this.btnPlay.IsEnabled = true;
}
lstboxTyphoons.Visibility = Visibility.Hidden;
if (lstboxTyphoons.SelectedIndex == -1)
{
return;
}
cTyphoon = typhoonList[lstboxTyphoons.SelectedIndex];
canvasShow.Children.Clear();
typhoonInitial();
}
/// <summary>
/// //台风列表初始化
/// </summary>
private void typhoonlistInitial()
{
string reqMsg = "typhoon Time " + (DateTime.Now.Year - 2).ToString() + " Time 2014-01-01-00 2014-12-31-24";
TyphoonRequest request = new TyphoonRequest(reqMsg);
typhoonList = TyphServer.GetTyphoonData(request);
if (typhoonList == null)
{
MessageBox.Show("与服务器连接异常，没有找到所需的数据");
btnPlay.IsEnabled = false;
return;
}
for (int i = 0; i < typhoonList.Count; i++)
{
Label temp = new Label();
temp.Content = typhoonList[i].header.typhName;
lstboxTyphoons.Items.Add(temp);
}
cTyphoon = typhoonList[0];
typhoonInitial();
}
/// <summary>
/// //从最佳路径数据中读取台风数据并转换为MOST模型
/// </summary>
private List <CMostTyphoon> GetTyphoon(string fileName)
{
List <CMostTyphoon> MOSTTyphoons = new List <CMostTyphoon>();
StreamReader sr = new StreamReader(fileName);
while (true) //依次从文件中读取台风路径数据
{
CMostTyphoon typh = new CMostTyphoon();
if (typh.ReadTyphoon(sr))
{
MOSTTyphoons.Add(typh);
}
else
{
break;
}
}
sr.Close();
sr.Dispose();
return(MOSTTyphoons);
}
/// <summary>
/// //根据台风路径请求获取台风路径数据
/// </summary>
public static List <CMostTyphoon> GetTyphoonData(TyphoonRequest req)
{
DataSet dtset = new DataSet(); //从数据库中得到检索数据
MySqlDataAdapter mydbadapter = CMyTyphoonSQL.GetTyphoon(req.SQL);
mydbadapter.Fill(dtset, "result");
DataTable dt = dtset.Tables["result"];
List <CMostTyphoon> typhoons = new List <CMostTyphoon>(); //生成台风数据集合
int i = 0, n = dt.Rows.Count;
if (n == 0)
{
return(null);
}
CMostTyphoon typh = new CMostTyphoon();
int id = (int)dt.Rows[0]["ID"];
SetTyphoonHeader(typh, dt.Rows[0]); //设置第一条台风数据头
for (i = 0; i < n; i++)
{
if (id != (int)dt.Rows[i]["ID"]) //如果id号不一样，则说明为另一条台风数据
{
id = (int)dt.Rows[i]["ID"];
typh.InitMostModel();
typhoons.Add(typh);
typh = new CMostTyphoon();
SetTyphoonHeader(typh, dt.Rows[i]);
typh.points.Add(GetTyphoonPoint(dt.Rows[i]));
}
else //否则读取台风路径点对象
{
typh.points.Add(GetTyphoonPoint(dt.Rows[i]));
}
}
typhoons.Add(typh);
typh.InitMostModel();
dtset.Dispose();
return(typhoons);
}
/// <summary>
/// //响应搜索台风按钮的事件
/// </summary>
private void Search_Click(object sender, RoutedEventArgs e)
{
canvasShow.Children.Clear();
string reqMsg = MySearchControl.GetRequest();
if (reqMsg == "typhoon Wrong")
{
MessageBox.Show("查询请求不正确");
btnPlay.IsEnabled = false;
return;
}
else if (reqMsg.Contains("search"))
{
string timeText = reqMsg.Split(new char[] { '\t' }, StringSplitOptions.RemoveEmptyEntries)[1];
DateTime datetime = DateTime.Parse(timeText);
if (cTyphoon.POINTSNUM != 0)
{
typhoonInitial();
pFTDQ = cTyphoon.FullTimeDomainInquiry(datetime);
if (pFTDQ == null)
{
MessageBox.Show("查询过程出错", "全时域查询结果", MessageBoxButton.OK, MessageBoxImage.Error);
}
else
{
MessageBox.Show(datetime.ToString("yyyy-MM-dd HH:mm:ss") + "，台风位于(" + pFTDQ.latitude.ToString("F4") + "," + pFTDQ.longitude.ToString("F4") + ")", "全时域查询结果", MessageBoxButton.OK, MessageBoxImage.Information);
Point point0 = new Point();
point0.X = (pFTDQ.longitude - minLong) / (maxLong - minLong) * canvasShow.Width;
point0.Y = canvasShow.Height - (pFTDQ.latitude - minLat) / (maxLat - minLat) * canvasShow.Height;
Ellipse tp = new Ellipse();
tp.Height = 10 / scale;
tp.Width = 10 / scale;
tp.Fill = Brushes.Red;
tp.Stroke = Brushes.Black;
tp.StrokeThickness = 1 / scale;
Canvas.SetLeft(tp, point0.X - 5 / scale);
Canvas.SetTop(tp, point0.Y - 5 / scale);
Canvas.SetZIndex(tp, 2);
canvasShow.Children.Add(tp);
}
}
return;
}
TyphoonRequest request = new TyphoonRequest(reqMsg);
ctyphoonlist = TyphServer.GetTyphoonData(request);
lstBoxTyphoons.Items.Clear();
if (ctyphoonlist == null)
{
MessageBox.Show("没有符合查询条件的台风");
btnPlay.IsEnabled = false;
return;
}
for (int i = 0; i < ctyphoonlist.Count; i++)
{
Label temp = new Label();
temp.Content = ctyphoonlist[i].header.typhName;
lstBoxTyphoons.Items.Add(temp);
}
cTyphoon = ctyphoonlist[0];
btnPlay.IsEnabled = true;
typhoonInitial();
}
/// <summary>
/// //设置台风信息头
/// </summary>
public static void SetTyphoonHeader(CMostTyphoon typh, DataRow row)
{
typh.SetHeaderMsg((int)row["ID"], (int)row["END"], (int)row["INTERVAL"], (string)row["NAME"], (int)row["POINTNUM"]);
}
