public SamplePage()
{
InitializeComponent();
map.Loaded += MapLoaded;
IOfflineMap offlineMap = DependencyService.Get <IOfflineMap>();
offlineMap.HasUpdate += (_, e) => {
Debug.WriteLine("OfflineMap has update: " + e.CityID);
};
offlineMap.Downloading += (_, e) => {
Debug.WriteLine("OfflineMap downloading: " + e.CityID);
};
var list = offlineMap.HotList;
list = offlineMap.AllList;
//offlineMap.Remove(131);
var curr = offlineMap.Current;
//offlineMap.Start(27);
//offlineMap.Start(75);
curr = offlineMap.Current;
// 计算
ICalculateUtils calc = DependencyService.Get <ICalculateUtils>();
Debug.WriteLine(calc.CalculateDistance(
new Coordinate(40, 116),
new Coordinate(41, 117)
));//139599.429229778 in iOS, 139689.085961837 in Android
}
/// <summary>
/// 播放轨迹
/// </summary>
private void Projection()
{
if (!IsPlayed)
{
IsPlayed = true;
btnTrack.Text = "";
//============================
//生成坐标点
map.ClearOverlay = true;
Task.Run(() =>
{
try
{
if (ViewModel != null)
{
var select = ViewModel.BusinessUsers.Where(s => s.Selected).FirstOrDefault();
if (select != null)
{
//跟踪轨迹，包含拜访轨迹
Coords = select.RealTimeTracks.Select(b =>
{
return(new Coordinate(b.Latitude ?? 0, b.Longitude ?? 0, int.Parse(b.Ctype)));
}).ToList();
//拜访路线
CPoints = select.VisitRecords.Select(b =>
{
return(new Coordinate(b.Latitude ?? 0, b.Longitude ?? 0, 1));
}).ToList();
if (Coords.Count >= 2)
{
//轨迹细化
var lastPoints = new Coordinate();
for (int j = 0; j < Coords.Count; j++)
{
lastPoints = Coords[j];
if (j > 0)
{
var dist = calc.CalculateDistance(Coords[j], lastPoints);
if (dist > 3) //两点之间的距离大于3米
{
Coords.AddRange(addLatLng(Coords[j], lastPoints, dist));
}
}
}
//var dist = calc.CalculateDistance(Coords[0], Coords[Coords.Count-1]);
//GetLevel(calc.CalculateDistance(Coords[0], Coords[Coords.Count - 1])); //缩放地图
Coords = DouglasPeucker(Coords, 10); //轨迹抽稀
Coords = OptimizePoints(Coords); //轨迹优化;
//画线1
map.Polylines.Add(new BaiduMaps.Polyline
{
Points = new ObservableCollection <Coordinate>(Coords.Take(2)),
//Color = Color.FromHex("#8cabe1"),
Color = Color.FromHex("#53a245"),
Width = 15
});
for (int i = 0; i < Coords.Count; i++)
{
Task.Delay(1000).Wait();
lastPoints = Coords[i];
if (i == 0)
{
AddOverlay(Coords[i], "q10660.png");//起点
}
else if (i == Coords.Count - 1)
{
AddOverlay(Coords[i], "z10660.png");//终点
}
else if (Coords[i].Ctype == 1)
{
//当前标注
AddOverlay(Coords[i], "red_location.png");
}
map.Polylines[0].Points.Add(Coords[i]);
//移动地图
map.Center = Coords[i];
}
//轨迹2
//map.Polylines.Add(new BaiduMaps.Polyline
//{
// Points = new ObservableCollection<Coordinate>(CPoints.Take(2)),
// Color = Color.FromHex("#53a245"),
// Width = 10
//});
//for (int i = 0; i < CPoints.Count; i++)
//{
// Task.Delay(1000).Wait();
// if (i == 0)
// {
// AddOverlay(CPoints[i], "q10660.png");//起点
// }
// else if (i == CPoints.Count - 1)
// {
// AddOverlay(CPoints[i], "z10660.png");//终点
// }
// else
// {
// //当前标注
// AddOverlay(CPoints[i], "red_location.png");
// }
// map.Polylines[1].Points.Add(CPoints[i]);
// //移动地图
// map.Center = CPoints[i];
//}
}
else
{
ViewModel.Alert($"回放失败，业务员{select.BusinessUserName},无拜访轨迹.");
}
}
else
{
ViewModel.Alert("请选择业务员！");
}
}
}
catch (Exception ex)
{
Log.Write(ex);
}
});
//============================
btnTrack.Text = "";
IsPlayed = false;
}
}
