GeoCoordinate.Speed Properti

Definisi

Ruang nama:

System.Device.Location

Rakitan:

System.Device.dll

Mendapatkan atau mengatur kecepatan dalam meter per detik.

public:
 property double Speed { double get(); void set(double value); };

public double Speed { get; set; }

member this.Speed : double with get, set

Public Property Speed As Double

Nilai Properti

Double

Kecepatan dalam meter per detik. Kecepatan harus lebih besar dari atau sama dengan nol, atau NaN.

Pengecualian

ArgumentOutOfRangeException

Speed diatur di luar rentang yang valid.

Contoh

Contoh berikut mencetak Course properti dan Speed dari lokasi GeoCoordinatesaat ini.

static void GetLocationCourseAndSpeed()
{
    GeoCoordinateWatcher watcher = new GeoCoordinateWatcher();

    watcher.TryStart(true, TimeSpan.FromMilliseconds(1000));

    if (watcher.Position.Location.IsUnknown != true)
    {
        GeoCoordinate coord = watcher.Position.Location;

        Console.WriteLine("Course: {0}, Speed: {1}",
            coord.Course,
            coord.Speed);
    }
    else
    {
        Console.WriteLine("Unknown");
    }
}

Public Sub GetLocationCourseAndSpeed()
    Dim watcher As GeoCoordinateWatcher
    watcher = New System.Device.Location.GeoCoordinateWatcher()
    watcher.TryStart(False, TimeSpan.FromMilliseconds(1000))

    If Not watcher.Position.Location.IsUnknown Then
        Dim coord As GeoCoordinate = watcher.Position.Location
        Console.WriteLine("Course: {0}, Speed: {1}",
            coord.Course,
            coord.Speed) 'NaN if not available.
    Else
        Console.WriteLine("Location unknown.")
    End If

End Sub