protected override BaseShape CreateAccessibleAreaCore()
{
string rtgFilePathName = Path.ChangeExtension(StreetShapeFilePathName, ".rtg");
RtgRoutingSource routingSource = new RtgRoutingSource(rtgFilePathName);
FeatureSource featureSource = new ShapeFileFeatureSource(StreetShapeFilePathName);
RoutingEngine routingEngine = new RoutingEngine(routingSource, featureSource);
if (!featureSource.IsOpen)
{
featureSource.Open();
}
ManagedProj4Projection proj = new ManagedProj4Projection();
proj.InternalProjectionParametersString = ManagedProj4Projection.GetBingMapParametersString();
proj.ExternalProjectionParametersString = ManagedProj4Projection.GetEpsgParametersString(4326);
proj.Open();
StartLocation = proj.ConvertToExternalProjection(StartLocation) as PointShape;
Feature feature = featureSource.GetFeaturesNearestTo(StartLocation, GeographyUnit, 1, ReturningColumnsType.NoColumns)[0];
PolygonShape polygonShape = routingEngine.GenerateServiceArea(feature.Id, new TimeSpan(0, DrivingTimeInMinutes, 0), 100, GeographyUnit.Feet);
polygonShape = proj.ConvertToInternalProjection(polygonShape) as PolygonShape;
proj.Close();
return(polygonShape);
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.DisplayASimpleMap);
androidMap = FindViewById <MapView>(Resource.Id.androidmap);
androidMap.MapUnit = GeographyUnit.Meter;
androidMap.ZoomLevelSet = new GoogleMapsZoomLevelSet();
GoogleMapsOverlay googleMapsOverlay = new GoogleMapsOverlay();
googleMapsOverlay.TileType = TileType.MultiTile;
androidMap.Overlays.Add(googleMapsOverlay);
ManagedProj4Projection proj4 = new ManagedProj4Projection();
proj4.InternalProjectionParametersString = ManagedProj4Projection.GetDecimalDegreesParametersString();
proj4.ExternalProjectionParametersString = ManagedProj4Projection.GetGoogleMapParametersString();
proj4.Open();
androidMap.CurrentExtent = proj4.ConvertToExternalProjection(new RectangleShape(-139.2, 92.4, 120.9, -93.2)) as RectangleShape;
SampleViewHelper.InitializeInstruction(this, FindViewById <RelativeLayout>(Resource.Id.MainLayout), GetType());
}
private void FilterEarthquake()
{
FilteredQueryResults.Clear();
ManagedProj4Projection mercatorToWgs84Projection = new ManagedProj4Projection();
mercatorToWgs84Projection.InternalProjectionParametersString = ManagedProj4Projection.GetSphericalMercatorParametersString();
mercatorToWgs84Projection.ExternalProjectionParametersString = ManagedProj4Projection.GetDecimalDegreesParametersString();
mercatorToWgs84Projection.Open();
for (int i = queryResults.Count - 1; i >= 0; i--)
{
EarthquakeViewModel resultItem = queryResults[i];
double latitude, longitude;
if (double.TryParse(resultItem.Latitude, out latitude) && double.TryParse(resultItem.Longitude, out longitude))
{
PointShape point = new PointShape(longitude, latitude);
point = (PointShape)mercatorToWgs84Projection.ConvertToExternalProjection(point);
EarthquakeViewModel newResultItem = new EarthquakeViewModel(resultItem.EpicenterFeature);
newResultItem.Latitude = point.Y.ToString("f3", CultureInfo.InvariantCulture);
newResultItem.Longitude = point.X.ToString("f3", CultureInfo.InvariantCulture);
double year, depth, magnitude;
double.TryParse(newResultItem.Magnitude, out magnitude);
double.TryParse(newResultItem.DepthInKilometer, out depth);
double.TryParse(newResultItem.Year, out year);
if ((magnitude >= queryFilter.StartMagnitudeRange && magnitude <= queryFilter.EndMagnitudeRange || newResultItem.Magnitude == Resources.UnknownString)
&& (depth <= queryFilter.EndDepthRange && depth >= queryFilter.StartDepthRange || newResultItem.DepthInKilometer == Resources.UnknownString)
&& (year >= queryFilter.StartYearRange && year <= queryFilter.EndYearRange) || newResultItem.Year == Resources.UnknownString)
{
FilteredQueryResults.Add(newResultItem);
}
}
}
mercatorToWgs84Projection.Close();
mapModel.RefreshMarkersByFeatures(FilteredQueryResults.Select(f => f.EpicenterFeature));
}