/// <summary>Создаёт вектор между двумя точками на поверхности</summary>
/// <param name="StartPoint">Начальная точка</param>
/// <param name="EndPoint">Конечная точка</param>
public EarthVector(EarthPoint StartPoint, EarthPoint EndPoint)
: this()
{
_lazyLength = new Lazy<double>(GetLength, true);
this.EndPoint = EndPoint;
this.StartPoint = StartPoint;
}
public TrackSegment(EarthPoint StartPoint, EarthPoint EndPoint, double StartOffset)
{
this.EndPoint = EndPoint;
this.StartPoint = StartPoint;
Length = StartPoint.DistanceTo(EndPoint);
this.StartOffset = StartOffset;
EndOffset = StartOffset + Length;
}
private void EmitPosition(ICanPort Port, EarthPoint Position, bool Reliability)
{
CanFrame frame = new MmAltLongFrame(Position.Latitude,
Position.Longitude,
Reliability).GetCanFrame();
CanFrame fx = CanFrame.NewWithId(0x5c0, frame.Data);
Port.BeginSend(fx);
}
/// <summary>Возвращает расстояние между точками по теореме гаверсинусов</summary>
/// <seealso href="http://en.wikipedia.org/wiki/Haversine_formula" />
/// <param name="p1">Первая точка</param>
/// <param name="p2">Вторая точка</param>
/// <returns>Расстояние между точками в метрах</returns>
public static Double DistanceTo(this EarthPoint p1, EarthPoint p2)
{
return 2 * R
* Math.Asin(
Math.Sqrt(HaverSin((Radian)p2.Latitude - (Radian)p1.Latitude)
+ Math.Cos((Radian)p1.Latitude) * Math.Cos((Radian)p2.Latitude)
* HaverSin((Radian)p2.Longitude - (Radian)p1.Longitude)));
}
public MapViewModel()
{
//MapCenter = new EarthPoint(new Degree(56.8779), new Degree(60.5905));
MapCenter = new EarthPoint(new Degree(55.729959), new Degree(37.540420));
ZoomLevel = 14;
_mapClickedCommand = ReactiveCommand.Create();
Clicks = _mapClickedCommand.OfType<MapMouseActionEventArgs>();
}
public static bool TryParse(string Value, out EarthPoint Point)
{
Match m = _parsingExpression.Match(Value);
if (!m.Success)
{
Point = default(EarthPoint);
return false;
}
Point = new EarthPoint(Double.Parse(m.Groups["lat"].Value.Replace(',', '.'), CultureInfo.InvariantCulture),
Double.Parse(m.Groups["lon"].Value.Replace(',', '.'), CultureInfo.InvariantCulture));
return true;
}
private void EmitPosition(UdpClient Client, EarthPoint Position, bool Reliability)
{
using (var ms = new MemoryStream())
{
var writer = new BinaryWriter(ms);
writer.Write((byte)PacketType.Position);
writer.Write(Position.Latitude);
writer.Write(Position.Longitude);
writer.Write((byte)(Reliability ? 1 : 0));
byte[] dat = ms.ToArray();
Client.Send(dat, dat.Length);
}
}
public void EmitPosition(EarthPoint Position, double Speed)
{
var doc = new XDocument(
new XElement("Information",
new XElement("Position",
new XAttribute("Latitude", Position.Latitude.Value),
new XAttribute("Longitude", Position.Longitude.Value)),
new XElement("Speed", Speed),
new XElement("Time", (_time + (DateTime.Now - _beginTime)))));
using (var ms = new MemoryStream())
{
doc.Save(ms);
byte[] a = ms.ToArray();
_udpClient.Send(a, a.Length, _remodeEp);
}
}
public MapPointElement(EarthPoint Position)
{
_position = Position;
}
private void RefreshPosition(EarthPoint Position)
{
_mappingService.Remove(_currentElement);
_currentElement = new PositionMapElement(Position);
_mappingService.Display(_currentElement);
}
public NavigationInformation(EarthPoint Position, double Speed, bool Reliability)
{
this.Reliability = Reliability;
this.Position = Position;
this.Speed = Speed;
}
/// <summary>Прямое преобразование Меркатора (со сферы на плоскость)</summary>
/// <param name="p">Координаты точки на сфере</param>
/// <returns>Координаты точки на поверхности</returns>
public static SurfacePoint Direct(EarthPoint p)
{
return new SurfacePoint(LongitudeToX(p.Longitude), LatitudeToY(p.Latitude));
}
public MapMouseActionEventArgs(EarthPoint Point, MouseAction Action)
{
this.Action = Action;
this.Point = Point;
}
protected virtual void OnCentralPointChanged(EarthPoint newCentralPoint)
{
Point screenCentralPoint = Projector.Project(newCentralPoint, ZoomLevel);
_globalTransform.X = Math.Round(-screenCentralPoint.X + ActualWidth / 2);
_globalTransform.Y = Math.Round(-screenCentralPoint.Y + ActualHeight / 2);
VisibleArea = new EarthArea(
// Top Left
Projector.InverseProject(screenCentralPoint + new Vector(-ActualWidth / 2, -ActualHeight / 2), ZoomLevel),
// Bottom Left
Projector.InverseProject(screenCentralPoint + new Vector(-ActualWidth / 2, +ActualHeight / 2), ZoomLevel),
// Top Right
Projector.InverseProject(screenCentralPoint + new Vector(+ActualWidth / 2, -ActualHeight / 2), ZoomLevel),
// BottomRight
Projector.InverseProject(screenCentralPoint + new Vector(+ActualWidth / 2, +ActualHeight / 2), ZoomLevel)
);
RefreshTiles();
}
public Point Project(EarthPoint p, int Zoom)
{
var surfacePoint = (SurfacePoint)p;
double mpp = Scales[Zoom];
return new Point(Math.Round(surfacePoint.X / mpp), Math.Round(-surfacePoint.Y / mpp));
}
public void Navigate(EarthPoint ToPoint)
{
MapCenter = ToPoint;
}
/// <summary>Получает точку, лежащую между указанными точками</summary>
/// <param name="Point1">Точка 1</param>
/// <param name="Point2">Точка 2</param>
/// <param name="Ratio">Доля участка между точками 1 и 2</param>
public static EarthPoint MiddlePoint(EarthPoint Point1, EarthPoint Point2, Double Ratio = 0.5)
{
return new EarthPoint(
(1 - Ratio) * Point1.Latitude + Ratio * Point2.Latitude,
(1 - Ratio) * Point1.Longitude + Ratio * Point2.Longitude);
}
public PositionMapElement(EarthPoint Position)
: base(Position)
{
}
private void AppendPointToTrack(EarthPoint Point) { _track.Add(Point); }