// Here we update the vehicles from the database. In this sample we create our data provider each time and
// when we are finsihed with it we dispose it. This is very safe however you may get better performance
// if you were to cache this. We wanted to sample to be clean and safe and it is up to your expertise to
// enhance it further
private void UpdateVehicles(LayerOverlay traceOverlay, DateTime currentTime)
{
Dictionary <int, Vehicle> currentVehicles;
TrackingAccessProvider vehicleProvider = new TrackingAccessProvider(dataRootPath);
currentVehicles = vehicleProvider.GetCurrentVehicles(currentTime);
// Loop through all the vehicle to add the history points
if (currentVehicles != null && currentVehicles.All(v => !string.IsNullOrEmpty(v.Value.IconPath)))
{
InMemoryFeatureLayer vehicleTrailLayer;
// Initialize vehicle overlay if it's not initialized
if (!traceOverlay.Layers.Contains("VehicleTrail"))
{
// Create an InMemoryMarkerOverlay for the vehicle to hold the points and current location
vehicleTrailLayer = new InMemoryFeatureLayer();
vehicleTrailLayer.Open();
vehicleTrailLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = GetVehicleTrailStyle();
vehicleTrailLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
// Add all the required columns so we can populate later
vehicleTrailLayer.FeatureSource.Open();
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("Speed"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("DateTime"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("Longitude"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("Latitude"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("VehicleName"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("Duration"));
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
lock (traceOverlay.Layers)
{
traceOverlay.Layers.Add("VehicleTrail", vehicleTrailLayer);
}
}));
}
else
{
// Find the overlay in the map
vehicleTrailLayer = (InMemoryFeatureLayer)traceOverlay.Layers["VehicleTrail"];
}
vehicleTrailLayer.InternalFeatures.Clear();
foreach (int vehicleId in currentVehicles.Keys)
{
Vehicle currentVehicle = currentVehicles[vehicleId];
VehicleViewModel tempVehicleViewModel = Vehicles.FirstOrDefault(v => v.OwnerName == currentVehicle.Name);
if (tempVehicleViewModel == null)
{
tempVehicleViewModel = new VehicleViewModel(currentVehicle, mapModel);
Application.Current.Dispatcher.BeginInvoke(new Action(() => Vehicles.Add(tempVehicleViewModel)));
}
else
{
tempVehicleViewModel.Vehicle = currentVehicle;
tempVehicleViewModel.Load();
}
bool isInSpatialFence = IsInSpatialFence(currentVehicle);
tempVehicleViewModel.Area = isInSpatialFence ? "In restricted area" : "Out of restricted area";
// Add the vheicle's bread crumbs
foreach (Location historyLocation in currentVehicle.HistoryLocations.Take(6))
{
Feature breadcrumbFeature = new Feature(historyLocation.GetLocation().GetWellKnownBinary(), currentVehicle.Name + historyLocation.DateTime.ToString(CultureInfo.InvariantCulture));
breadcrumbFeature.ColumnValues["DateTime"] = historyLocation.DateTime.ToString(CultureInfo.InvariantCulture);
breadcrumbFeature.ColumnValues["Speed"] = historyLocation.Speed.ToString(CultureInfo.InvariantCulture);
breadcrumbFeature.ColumnValues["Longitude"] = historyLocation.Longitude.ToString(CultureInfo.InvariantCulture);
breadcrumbFeature.ColumnValues["Latitude"] = historyLocation.Latitude.ToString(CultureInfo.InvariantCulture);
breadcrumbFeature.ColumnValues["VehicleName"] = currentVehicle.Name;
breadcrumbFeature.ColumnValues["Duration"] = currentVehicle.GetSpeedDuration().ToString(CultureInfo.InvariantCulture);
vehicleTrailLayer.InternalFeatures.Add(breadcrumbFeature.Id, breadcrumbFeature);
}
InMemoryFeatureLayer currentVehicleLayer;
if (!traceOverlay.Layers.Contains(currentVehicle.Name))
{
// Create an InMemoryMarkerOverlay for the vehicle to hold the points and current location
currentVehicleLayer = new InMemoryFeatureLayer();
currentVehicleLayer.Open();
currentVehicleLayer.Name = currentVehicle.Id.ToString(CultureInfo.InvariantCulture);
currentVehicleLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = GetCurrentVehicleStyle(currentVehicle.IconPath);
currentVehicleLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
// Add all the required columns so we can populate later
currentVehicleLayer.FeatureSource.Open();
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("Speed"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("DateTime"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("Longitude"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("Latitude"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("VehicleName"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("Duration"));
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
lock (traceOverlay.Layers)
{
traceOverlay.Layers.Add(currentVehicle.Name, currentVehicleLayer);
}
}));
}
else
{
// Find the overlay in the map
currentVehicleLayer = (InMemoryFeatureLayer)traceOverlay.Layers[currentVehicle.Name];
}
currentVehicleLayer.InternalFeatures.Clear();
// Add the vehicle's latest position
Feature latestPositionFeature = new Feature(currentVehicle.Location.GetLocation().GetWellKnownBinary(), currentVehicle.Name);
latestPositionFeature.ColumnValues["DateTime"] = currentVehicle.Location.DateTime.ToString(CultureInfo.InvariantCulture);
latestPositionFeature.ColumnValues["Speed"] = currentVehicle.Location.Speed.ToString(CultureInfo.InvariantCulture);
latestPositionFeature.ColumnValues["Longitude"] = currentVehicle.Location.Longitude.ToString(CultureInfo.InvariantCulture);
latestPositionFeature.ColumnValues["Latitude"] = currentVehicle.Location.Latitude.ToString(CultureInfo.InvariantCulture);
latestPositionFeature.ColumnValues["VehicleName"] = currentVehicle.Name;
latestPositionFeature.ColumnValues["Duration"] = currentVehicle.GetSpeedDuration().ToString(CultureInfo.InvariantCulture);
currentVehicleLayer.InternalFeatures.Add(latestPositionFeature.Id, latestPositionFeature);
}
}
}
// Here we update the vehicles from the database. In this sample we create our data provider each time and
// when we are finsihed with it we dispose it. This is very safe however you may get better performance
// if you were to cache this. We wanted to sample to be clean and safe and it is up to your expertise to
// enhance it further
private void UpdateVehicles(LayerOverlay traceOverlay, DateTime currentTime)
{
Dictionary<int, Vehicle> currentVehicles;
using (TrackingAccessProvider vehicleProvider = new TrackingAccessProvider(databasePathFileName))
{
currentVehicles = vehicleProvider.GetCurrentVehicles(currentTime);
}
// Loop through all the vehicle to add the history points
if (currentVehicles != null && currentVehicles.All(v => !string.IsNullOrEmpty(v.Value.IconPath)))
{
InMemoryFeatureLayer vehicleTrailLayer;
// Initialize vehicle overlay if it's not initialized
if (!traceOverlay.Layers.Contains("VehicleTrail"))
{
// Create an InMemoryMarkerOverlay for the vehicle to hold the points and current location
vehicleTrailLayer = new InMemoryFeatureLayer();
vehicleTrailLayer.Open();
vehicleTrailLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = GetVehicleTrailStyle();
vehicleTrailLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
// Add all the required columns so we can populate later
vehicleTrailLayer.FeatureSource.Open();
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("Speed"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("DateTime"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("Longitude"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("Latitude"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("VehicleName"));
vehicleTrailLayer.Columns.Add(new FeatureSourceColumn("Duration"));
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
lock (traceOverlay.Layers)
{
traceOverlay.Layers.Add("VehicleTrail", vehicleTrailLayer);
}
}));
}
else
{
// Find the overlay in the map
vehicleTrailLayer = (InMemoryFeatureLayer)traceOverlay.Layers["VehicleTrail"];
}
vehicleTrailLayer.InternalFeatures.Clear();
foreach (int vehicleId in currentVehicles.Keys)
{
Vehicle currentVehicle = currentVehicles[vehicleId];
VehicleViewModel tempVehicleViewModel = Vehicles.FirstOrDefault(v => v.OwnerName == currentVehicle.Name);
if (tempVehicleViewModel == null)
{
tempVehicleViewModel = new VehicleViewModel(currentVehicle, mapModel);
Application.Current.Dispatcher.BeginInvoke(new Action(() => Vehicles.Add(tempVehicleViewModel)));
}
else
{
tempVehicleViewModel.Vehicle = currentVehicle;
tempVehicleViewModel.Load();
}
bool isInSpatialFence = IsInSpatialFence(currentVehicle);
tempVehicleViewModel.Area = isInSpatialFence ? "In restricted area" : "Out of restricted area";
// Add the vheicle's bread crumbs
foreach (Location historyLocation in currentVehicle.HistoryLocations.Take(6))
{
Feature breadcrumbFeature = new Feature(historyLocation.GetLocation().GetWellKnownBinary(), currentVehicle.Name + historyLocation.DateTime.ToString(CultureInfo.InvariantCulture));
breadcrumbFeature.ColumnValues["DateTime"] = historyLocation.DateTime.ToString(CultureInfo.InvariantCulture);
breadcrumbFeature.ColumnValues["Speed"] = historyLocation.Speed.ToString(CultureInfo.InvariantCulture);
breadcrumbFeature.ColumnValues["Longitude"] = historyLocation.Longitude.ToString(CultureInfo.InvariantCulture);
breadcrumbFeature.ColumnValues["Latitude"] = historyLocation.Latitude.ToString(CultureInfo.InvariantCulture);
breadcrumbFeature.ColumnValues["VehicleName"] = currentVehicle.Name;
breadcrumbFeature.ColumnValues["Duration"] = currentVehicle.GetSpeedDuration().ToString(CultureInfo.InvariantCulture);
vehicleTrailLayer.InternalFeatures.Add(breadcrumbFeature.Id, breadcrumbFeature);
}
InMemoryFeatureLayer currentVehicleLayer;
if (!traceOverlay.Layers.Contains(currentVehicle.Name))
{
// Create an InMemoryMarkerOverlay for the vehicle to hold the points and current location
currentVehicleLayer = new InMemoryFeatureLayer();
currentVehicleLayer.Open();
currentVehicleLayer.Name = currentVehicle.Id.ToString(CultureInfo.InvariantCulture);
currentVehicleLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = GetCurrentVehicleStyle(currentVehicle.IconPath);
currentVehicleLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
// Add all the required columns so we can populate later
currentVehicleLayer.FeatureSource.Open();
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("Speed"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("DateTime"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("Longitude"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("Latitude"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("VehicleName"));
currentVehicleLayer.Columns.Add(new FeatureSourceColumn("Duration"));
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
lock (traceOverlay.Layers)
{
traceOverlay.Layers.Add(currentVehicle.Name, currentVehicleLayer);
}
}));
}
else
{
// Find the overlay in the map
currentVehicleLayer = (InMemoryFeatureLayer)traceOverlay.Layers[currentVehicle.Name];
}
currentVehicleLayer.InternalFeatures.Clear();
// Add the vehicle's latest position
Feature latestPositionFeature = new Feature(currentVehicle.Location.GetLocation().GetWellKnownBinary(), currentVehicle.Name);
latestPositionFeature.ColumnValues["DateTime"] = currentVehicle.Location.DateTime.ToString(CultureInfo.InvariantCulture);
latestPositionFeature.ColumnValues["Speed"] = currentVehicle.Location.Speed.ToString(CultureInfo.InvariantCulture);
latestPositionFeature.ColumnValues["Longitude"] = currentVehicle.Location.Longitude.ToString(CultureInfo.InvariantCulture);
latestPositionFeature.ColumnValues["Latitude"] = currentVehicle.Location.Latitude.ToString(CultureInfo.InvariantCulture);
latestPositionFeature.ColumnValues["VehicleName"] = currentVehicle.Name;
latestPositionFeature.ColumnValues["Duration"] = currentVehicle.GetSpeedDuration().ToString(CultureInfo.InvariantCulture);
currentVehicleLayer.InternalFeatures.Add(latestPositionFeature.Id, latestPositionFeature);
}
}
}
