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);
}
private void btnRoute_Click(object sender, EventArgs e)
{
RtgRoutingSource routingSource = new RtgRoutingSource(@"..\..\SampleData\Austinstreets.rtg");
RoutingEngine routingEngine = new RoutingEngine(routingSource, featureSource);
routingEngine.GeneratingServiceArea += new EventHandler <GeneratingServiceAreaRoutingEngineEventArgs>(routingEngine_GeneratingServiceArea);
float averageSpeed = float.Parse(txtAverageSpeed.Text);
int drivingMinutes = int.Parse(txtDrivingMinutes.Text);
PolygonShape polygonShape = routingEngine.GenerateServiceArea(txtStartId.Text, new TimeSpan(0, drivingMinutes, 0), averageSpeed);
InMemoryFeatureLayer routingLayer = (InMemoryFeatureLayer)((LayerOverlay)winformsMap1.Overlays["RoutingOverlay"]).Layers["RoutingLayer"];
routingLayer.InternalFeatures.Remove("ServiceArea");
if (polygonShape.Validate(ShapeValidationMode.Simple).IsValid)
{
routingLayer.InternalFeatures.Add("ServiceArea", new Feature(polygonShape));
routingLayer.Open();
winformsMap1.CurrentExtent = routingLayer.GetBoundingBox();
routingLayer.Close();
}
winformsMap1.Overlays["RoutingOverlay"].Lock.IsDirty = true;
winformsMap1.Refresh();
}
private void Route()
{
RtgRoutingSource routingSource = new RtgRoutingSource(Path.Combine(rootPath, "DallasCounty-4326.shortest.rtg"));
FeatureSource featureSource = new ShapeFileFeatureSource(Path.Combine(rootPath, "DallasCounty-4326.shp"));
RoutingEngine routingEngine = new RoutingEngine(routingSource, featureSource);
float averageSpeed = float.Parse(txtAverageSpeed.Text);
int drivingMinutes = int.Parse(txtDrivingMinutes.Text);
SpeedUnit speedUnit = GetSpeedUnit();
PolygonShape polygonShape = routingEngine.GenerateServiceArea(txtStartId.Text, new TimeSpan(0, drivingMinutes, 0), averageSpeed, speedUnit);
InMemoryFeatureLayer routingLayer = (InMemoryFeatureLayer)((LayerOverlay)winformsMap1.Overlays["RoutingOverlay"]).Layers["RoutingLayer"];
routingLayer.InternalFeatures.Remove("ServiceArea");
if (polygonShape.Validate(ShapeValidationMode.Simple).IsValid)
{
routingLayer.InternalFeatures.Add("ServiceArea", new Feature(polygonShape));
routingLayer.Open();
winformsMap1.CurrentExtent = routingLayer.GetBoundingBox();
routingLayer.Close();
}
winformsMap1.Refresh(winformsMap1.Overlays["RoutingOverlay"]);
}
public JsonResult SearchSimilarSites(Map map, GeoCollection <object> args)
{
string[] searchPointLatLng = args["searchPoint"].ToString().Split(',');
PointShape searchPoint = new PointShape(double.Parse(searchPointLatLng[0]), double.Parse(searchPointLatLng[1]));
object result = new { status = "2", message = "out of restriction area" };
Feature searchAreaFeature = null;
// check if the clicked point is in valid area (Frisco City)
FeatureLayer friscoLayer = (FeatureLayer)(map.CustomOverlays["RestrictOverlay"] as LayerOverlay).Layers["RestrictLayer"];
friscoLayer.Open();
if (friscoLayer.QueryTools.GetFeaturesContaining(searchPoint, ReturningColumnsType.NoColumns).Any())
{
// Calculate the service area/buffer area and display it on the map
if (args["searchMode"].ToString().Equals("serviceArea", StringComparison.InvariantCultureIgnoreCase))
{
int drivingTimeInMinutes = Convert.ToInt32(args["driveTime"].ToString(), CultureInfo.InvariantCulture);
searchAreaFeature = new Feature(routingEngine.GenerateServiceArea(searchPoint, new TimeSpan(0, drivingTimeInMinutes, 0), 100, GeographyUnit.Meter));
}
else
{
DistanceUnit distanceUnit = args["distanceUnit"].ToString() == "Mile" ? DistanceUnit.Mile : DistanceUnit.Kilometer;
double distanceBuffer = Convert.ToDouble(args["distanceBuffer"].ToString(), CultureInfo.InvariantCulture);
searchAreaFeature = new Feature(searchPoint.Buffer(distanceBuffer, 40, GeographyUnit.Meter, distanceUnit));
}
// Search the Pois in calculated service area and display them on map
LayerOverlay poiOverlay = map.CustomOverlays["PoisOverlay"] as LayerOverlay;
ShapeFileFeatureLayer poiLayer = (ShapeFileFeatureLayer)(poiOverlay.Layers[args["category"].ToString()]);
poiLayer.Open();
Collection <Feature> featuresInServiceArea = poiLayer.QueryTools.GetFeaturesWithin(searchAreaFeature.GetShape(), ReturningColumnsType.AllColumns);
List <Feature> filteredQueryFeatures = FilterFeaturesByQueryConfiguration(featuresInServiceArea, args["category"].ToString(), args["subCategory"].ToString().Replace(">~", ">="));
if (filteredQueryFeatures.Any())
{
Collection <object> returnedJsonFeatures = new Collection <object>();
foreach (Feature feature in filteredQueryFeatures)
{
PointShape latlng = feature.GetShape() as PointShape;
returnedJsonFeatures.Add(new { name = feature.ColumnValues["NAME"], point = string.Format("{0},{1}", latlng.Y, latlng.X) });
}
// Add into plot marker overlay.
InMemoryMarkerOverlay drawPointOverlay = map.CustomOverlays["DrawnPointOverlay"] as InMemoryMarkerOverlay;
drawPointOverlay.FeatureSource.Clear();
drawPointOverlay.FeatureSource.BeginTransaction();
drawPointOverlay.FeatureSource.AddFeature(new Feature(searchPoint));
drawPointOverlay.FeatureSource.CommitTransaction();
// Add into markerOvelray.
AddMarkers(filteredQueryFeatures, map);
Feature wgs84Feature = new Feature(searchAreaFeature.GetShape());
// Add into queried overlay.
LayerOverlay queriedOverlay = map.CustomOverlays["QueriedOverlay"] as LayerOverlay;
InMemoryFeatureLayer serviceAreaLayer = (queriedOverlay.Layers["serviceArea"] as InMemoryFeatureLayer);
serviceAreaLayer.Open();
serviceAreaLayer.InternalFeatures.Clear();
serviceAreaLayer.InternalFeatures.Add(wgs84Feature);
result = new { status = "0", message = "has features", features = returnedJsonFeatures };
}
else
{
result = new { status = "1", message = "without features" };
}
}
// return the search poi feature information to the client.
return(Json(result));
}