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)); }