private void drawMOSTTyphoon()
{
Point point0 = new Point();
Point point1 = new Point();
Point point2 = new Point();
for (int i = 1; i < cTyphoon.mostPoints.Count; i += 2)
{
point0.X = (cTyphoon.mostPoints[i - 1].longitude - minLong) / (maxLong - minLong) * canvasShow.Width;
point0.Y = canvasShow.Height - (cTyphoon.mostPoints[i - 1].latitude - minLat) / (maxLat - minLat) * canvasShow.Height;
Ellipse tp = new Ellipse();
tp.Height = 10 / scale;
tp.Width = 10 / scale;
tp.Fill = typhSpeedColor(cTyphoon.mostPoints[i - 1].aveSpeed);
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);
point1.Y = canvasShow.Height - (cTyphoon.mostPoints[i].latitude - minLat) / (maxLat - minLat) * canvasShow.Height;
point1.X = (cTyphoon.mostPoints[i].longitude - minLong) / (maxLong - minLong) * canvasShow.Width;
Line l = new Line();
l.Stroke = Brushes.DarkBlue;
l.StrokeThickness = 2 / scale;
l.X1 = point0.X; l.X2 = point1.X; l.Y1 = point0.Y; l.Y2 = point1.Y;
Canvas.SetZIndex(l, 1);
canvasShow.Children.Add(l);
point2.Y = canvasShow.Height - (cTyphoon.mostPoints[i + 1].latitude - minLat) / (maxLat - minLat) * canvasShow.Height;
point2.X = (cTyphoon.mostPoints[i + 1].longitude - minLong) / (maxLong - minLong) * canvasShow.Width;
DoubleCollection dc = new DoubleCollection();
dc.Add(2);
dc.Add(2);
Line dl = new Line();
dl.Stroke = Brushes.DarkBlue;
dl.StrokeThickness = 2 / scale;
dl.X1 = point1.X; dl.X2 = point2.X; dl.Y1 = point1.Y; dl.Y2 = point2.Y;
dl.StrokeDashArray = dc;
canvasShow.Children.Add(dl);
Canvas.SetZIndex(dl, 1);
}
#region 画预测轨迹
CMostTyphoonPoint p6h = cTyphoon.ShortTimePredict(6);
point0.X = (cTyphoon.points[cTyphoon.POINTSNUM - 1].longitude - minLong) / (maxLong - minLong) * canvasShow.Width;
point0.Y = canvasShow.Height - (cTyphoon.points[cTyphoon.POINTSNUM - 1].latitude - minLat) / (maxLat - minLat) * canvasShow.Height;
point1.Y = canvasShow.Height - (p6h.latitude - minLat) / (maxLat - minLat) * canvasShow.Height;
point1.X = (p6h.longitude - minLong) / (maxLong - minLong) * canvasShow.Width;
Line lp = new Line();
lp.Stroke = Brushes.Red;
lp.StrokeThickness = 2 / scale;
lp.X1 = point0.X; lp.X2 = point1.X; lp.Y1 = point0.Y; lp.Y2 = point1.Y;
Canvas.SetZIndex(lp, 1);
DoubleCollection dcl = new DoubleCollection();
dcl.Add(2);
dcl.Add(2);
lp.StrokeDashArray = dcl;
canvasShow.Children.Add(lp);
#endregion
}
/// <summary>
/// 为一条台风赋值初始化
/// </summary>
private void typhoonInitial()
{
CMostTyphoonPoint pt = cTyphoon.points[cTyphoon.POINTSNUM - 1];
lstboxAttri.Items.Clear();
for (int i = cTyphoon.POINTSNUM - 1; i > -1; i--)//显示台风点位数据
{
ListBoxItem lbitem = new ListBoxItem();
lbitem.Content = cTyphoon.points[i].recordTime.ToString("MM/dd/HH") + " " + cTyphoon.points[i].latitude + "/" + cTyphoon.points[i].longitude + "\t" + cTyphoon.points[i].centerPress + "\t" + cTyphoon.points[i].aveSpeed;
lstboxAttri.Items.Add(lbitem);
}
lblStateLabel.Content = cTyphoon.header.typhName + "(编号：" + cTyphoon.header.cycloneID + ") " + "已停编";
txtState.Text = "2015年第" + cTyphoon.header.cycloneID + "号热带低压，" + cTyphoon.header.typhName + "于" + pt.recordTime + "时位于北纬" + pt.latitude + "°、东经" + pt.longitude + "°，最大风速" + pt.aveSpeed + "m/s，中心气压" + pt.centerPress + "hPa";
lblIdentify.Content = "名称：" + cTyphoon.header.typhName + " 编号：" + cTyphoon.header.cycloneID + "号";
txtCurrent.Text = "实况信息\n" + pt.recordTime;
txtPredict.Text = "预报信息\n---";
lblLat.Content = pt.latitude.ToString();
lblLong.Content = pt.longitude.ToString();
lblSpeed.Content = pt.aveSpeed.ToString();
lblCenter.Content = pt.centerPress.ToString();
CMostTyphoonPoint p3h = cTyphoon.ShortTimePredict(3);
lblLat3h.Content = p3h.latitude.ToString("F3");
lblLong3h.Content = p3h.longitude.ToString("F3");
CMostTyphoonPoint p6h = cTyphoon.ShortTimePredict(6);
lblLat6h.Content = p6h.latitude.ToString("F3");
lblLong6h.Content = p6h.longitude.ToString("F3");
drawTyphoon();
drawMOSTTyphoon();
}
/// <summary>
/// //根据数据库返回的数据行来生成台风数据点对象
/// </summary>
public static CMostTyphoonPoint GetTyphoonPoint(DataRow row)
{
CMostTyphoonPoint tempPoint = new CMostTyphoonPoint();
tempPoint.SetPointMsg(Convert.ToDateTime(row["RECORDTIME"]), (int)row["STRENGTH"], (int)row["CENTERPRESS"], (int)row["AVESPEED"], (double)row["LATITUDE"], (double)row["LONGITUDE"], (double)row["LATSPEED"], (double)row["LONGSPEED"], (int)row["ISBURDEN"]);
return(tempPoint);
}
/// <summary>
/// 为一条台风赋值初始化
/// </summary>
private void typhoonInitial()
{
CMostTyphoonPoint pt = cTyphoon.points[cTyphoon.POINTSNUM - 1];
lstBoxAttrs.Items.Clear();
for (int i = cTyphoon.POINTSNUM - 1; i > -1; i--)//显示台风点位数据
{
ListBoxItem lbitem = new ListBoxItem();
lbitem.Content = cTyphoon.points[i].recordTime.ToString("MM/dd/HH") + " " + cTyphoon.points[i].latitude + "/" + cTyphoon.points[i].longitude + "\t" + cTyphoon.points[i].centerPress + "\t" + cTyphoon.points[i].aveSpeed;
lstBoxAttrs.Items.Add(lbitem);
}
drawtyphoon();
DrawMOSTTyphoon();
lblStateLabel.Content = cTyphoon.header + "(编号：" + cTyphoon.header.cycloneID + ") " + "已停编";
}
/// <summary>
/// 所选台风更改
/// </summary>
private void lstTyphoons_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
pFTDQ = null;
if (timer != null)
{
timer.Stop();
BtnSearch.IsEnabled = true;
tm = 0;
this.btnPlay.IsEnabled = true;
}
lstBoxTyphoons.Visibility = Visibility.Hidden;
if (lstBoxTyphoons.SelectedIndex == -1)
{
return;
}
cTyphoon = ctyphoonlist[lstBoxTyphoons.SelectedIndex];
canvasShow.Children.Clear();
typhoonInitial();
}
/// <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();
}