/// <summary>
/// Updates the UI after new earthquake data is retrieved. *Must* be called on the UI thread.
/// </summary>
/// <param name="data"></param>
void DisplayEarthquakes(GeoJSON.RootObject data)
{
earthquakes.Clear();
foreach (var feature in data.features)
{
GeoJSON.Properties props = feature.properties;
List <double> coords = feature.geometry.coordinates;
double longitude = coords[1];
double latitude = coords[0];
double depth = coords[2];
List <WorldCities.CityDistance> nearestCities = cities.GetNearestCities(new GeoCoordinate(longitude, latitude));
var rec = new EarthquakeRecord(
GeoJSON.Utils.TimeStampToDateTime(props.time),
props.mag,
longitude,
latitude,
depth,
string.Join(", ", nearestCities.ConvertAll(new Converter <WorldCities.CityDistance, string>((c) => c.ToString())))
);
earthquakes.Add(rec);
}
}
/// <summary>
/// Called when the <see cref="GeoJSON.PollingClient"/> gets new data. Need not be called on the UI thread.
/// </summary>
/// <param name="data">Retrieved data.</param>
void OnDataReceived(GeoJSON.RootObject data)
{
Dispatcher.BeginInvoke(new Action(() => DisplayEarthquakes(data)));
}
