/// <summary>
/// Simulates values when no online data are available.
/// </summary>
/// <param name="station">Station to update.</param>
/// <param name="x">Randomizer.</param>
private void SimulateValues(structWeatherStation station, float x)
{
station.StationStatus.Cyclic = (short)enumStationStatus.Unknown;
station.DewPoint.Cyclic = 0;
station.Temp.Cyclic = 0;
station.Pressure.Cyclic = 0;
station.WindSpeed.Cyclic = 0;
station.WindHeading.Cyclic = 0;
station.Visibility.Cyclic = 0;
}
/// <summary>
/// Simulates values when no online data are available.
/// </summary>
/// <param name="station">Station to update.</param>
/// <param name="x">Randomizer.</param>
private void SimulateValues(structWeatherStation station, float x)
{
station.StationStatus.Cyclic = (short)enumStationStatus.Unknown;
station.DewPoint.Cyclic = 30.0f * x;
station.Temp.Cyclic = -50.0f * x;
station.Pressure.Cyclic = 800.0f * x;
station.WindSpeed.Cyclic = 50.0f * x;
station.WindHeading.Cyclic = (ushort)(360f * x);
station.Visibility.Cyclic = 15.0f * x;
}
/// <summary>
/// Outputs data read from the PLC to the console.
/// </summary>
/// <param name="station">Station to output data.</param>
private void PrintOutStationData(structWeatherStation station)
{
var output = $"{station.AttributeName} [{(enumStationStatus)station.StationStatus.Synchron}][{station.StationICAO.Synchron}]:" +
$"{station.DewPoint.AttributeName}: {station.DewPoint.Synchron} [{station.DewPoint.AttributeUnits}] " +
$"{station.Temp.AttributeName}: {station.Temp.Synchron} [{station.Temp.AttributeUnits}] " +
$"{station.Pressure.AttributeName}: {station.Pressure.Synchron} [{station.Pressure.AttributeUnits}] " +
$"{station.Visibility.AttributeName}: {station.Visibility.Synchron} [{station.Visibility.AttributeUnits}] " +
$"{station.WindSpeed.AttributeName}: {station.WindSpeed.Synchron} [{station.WindSpeed.AttributeUnits}] " +
$"{station.WindHeading.AttributeName}: {station.WindHeading.Synchron} [{station.WindHeading.AttributeUnits}]";
System.Console.WriteLine(output);
}
/// <summary>
/// Outputs data read from the PLC to the console.
/// </summary>
/// <param name="station">Station to output data.</param>
private void PrintOutStationData(structWeatherStation station)
{
// Notice that we use property 'LastValue' to read the value of the PLC variable. 'LastValue' is the last value read from the
// controller using Batched reading. When you access 'LastValue' system does not adds this variable to the cyclic reading queue.
var output = $"{station.AttributeName} [{(enumStationStatus)station.StationStatus.LastValue}][{station.StationICAO.LastValue}]:" +
$"{station.DewPoint.AttributeName}: {station.DewPoint.LastValue} [{station.DewPoint.AttributeUnits}] " +
$"{station.Temp.AttributeName}: {station.Temp.LastValue} [{station.Temp.AttributeUnits}] " +
$"{station.Pressure.AttributeName}: {station.Pressure.LastValue} [{station.Pressure.AttributeUnits}] " +
$"{station.Visibility.AttributeName}: {station.Visibility.LastValue} [{station.Visibility.AttributeUnits}] " +
$"{station.WindSpeed.AttributeName}: {station.WindSpeed.LastValue} [{station.WindSpeed.AttributeUnits}] " +
$"{station.WindHeading.AttributeName}: {station.WindHeading.LastValue} [{station.WindHeading.AttributeUnits}]";
System.Console.WriteLine(output);
}
/// <summary>
/// Updates station's data.
/// </summary>
/// <param name="station">Station to update.</param>
internal void UpdateStationData(structWeatherStation station)
{
try
{
// Reads Weather Data from the internet.
var icao = OpenWeather.MetarStationLookup.Instance.Lookup(station.StationICAO.Synchron);
station.StationStatus.Cyclic = (short)enumStationStatus.Available;
station.DewPoint.Cyclic = (float)icao.Weather.Dewpoint;
station.Temp.Cyclic = (float)icao.Weather.Temperature;
station.Pressure.Cyclic = (float)icao.Weather.Pressure;
station.WindSpeed.Cyclic = (float)icao.Weather.WindSpeed;
station.WindHeading.Cyclic = (ushort)icao.Weather.WindHeading;
station.Visibility.Cyclic = (float)icao.Weather.Visibility;
}
catch (Exception ex)
{
// When online data not available we simulate the values.
station.StationStatus.Cyclic = (short)enumStationStatus.Unknown;
SimulateValues(station, new Random().Next());
}
}
