private async void TakeMapOfflineButton_Click(object sender, EventArgs e)
{
// Clean up any previous outputs in the temp directory.
string tempPath = $"{Path.GetTempPath()}";
string[] outputFolders = Directory.GetDirectories(tempPath, "NapervilleWaterNetwork*");
// Loop through the folder names and delete them.
foreach (string dir in outputFolders)
{
try
{
// Delete the folder.
Directory.Delete(dir, true);
}
catch (Exception)
{
// Ignore exceptions (files might be locked, for example).
}
}
// Create a new folder for the output mobile map.
string packagePath = Path.Combine(tempPath, @"NapervilleWaterNetwork");
int num = 1;
while (Directory.Exists(packagePath))
{
packagePath = Path.Combine(tempPath, @"NapervilleWaterNetwork" + num.ToString());
num++;
}
// Create the output directory.
Directory.CreateDirectory(packagePath);
try
{
// Show the progress indicator while the job is running.
busyIndicator.IsVisible = true;
// Create an offline map task with the current (online) map.
OfflineMapTask takeMapOfflineTask = await OfflineMapTask.CreateAsync(MyMapView.Map);
// Create the default parameters for the task, pass in the area of interest.
GenerateOfflineMapParameters parameters = await takeMapOfflineTask.CreateDefaultGenerateOfflineMapParametersAsync(_areaOfInterest);
// Create the job with the parameters and output location.
_generateOfflineMapJob = takeMapOfflineTask.GenerateOfflineMap(parameters, packagePath);
// Handle the progress changed event for the job.
_generateOfflineMapJob.ProgressChanged += OfflineMapJob_ProgressChanged;
// Await the job to generate geodatabases, export tile packages, and create the mobile map package.
GenerateOfflineMapResult results = await _generateOfflineMapJob.GetResultAsync();
// Check for job failure (writing the output was denied, e.g.).
if (_generateOfflineMapJob.Status != JobStatus.Succeeded)
{
await((Page)Parent).DisplayAlert("Alert", "Generate offline map package failed.", "OK");
busyIndicator.IsVisible = false;
}
// Check for errors with individual layers.
if (results.LayerErrors.Any())
{
// Build a string to show all layer errors.
System.Text.StringBuilder errorBuilder = new System.Text.StringBuilder();
foreach (KeyValuePair <Layer, Exception> layerError in results.LayerErrors)
{
errorBuilder.AppendLine(string.Format("{0} : {1}", layerError.Key.Id, layerError.Value.Message));
}
// Show layer errors.
string errorText = errorBuilder.ToString();
await((Page)Parent).DisplayAlert("Alert", errorText, "OK");
}
// Display the offline map.
MyMapView.Map = results.OfflineMap;
// Apply the original viewpoint for the offline map.
MyMapView.SetViewpoint(new Viewpoint(_areaOfInterest));
// Enable map interaction so the user can explore the offline data.
MyMapView.InteractionOptions.IsEnabled = true;
// Hide the "Take map offline" button.
takeOfflineArea.IsVisible = false;
// Show a message that the map is offline.
messageArea.IsVisible = true;
}
catch (TaskCanceledException)
{
// Generate offline map task was canceled.
await((Page)Parent).DisplayAlert("Alert", "Taking map offline was canceled", "OK");
}
catch (Exception ex)
{
// Exception while taking the map offline.
await((Page)Parent).DisplayAlert("Alert", ex.Message, "OK");
}
finally
{
// Hide the activity indicator when the job is done.
busyIndicator.IsVisible = false;
}
}
private async void TakeMapOfflineButton_Click(object sender, RoutedEventArgs e)
{
// Create a new folder for the output mobile map.
string packagePath = Path.Combine(Environment.ExpandEnvironmentVariables("%TEMP%"), @"NapervilleWaterNetwork");
int num = 1;
while (Directory.Exists(packagePath))
{
packagePath = Path.Combine(Environment.ExpandEnvironmentVariables("%TEMP%"), @"NapervilleWaterNetwork" + num.ToString());
num++;
}
// Create the output directory.
Directory.CreateDirectory(packagePath);
try
{
// Show the progress indicator while the job is running.
BusyIndicator.Visibility = Visibility.Visible;
// Create an offline map task with the current (online) map.
OfflineMapTask takeMapOfflineTask = await OfflineMapTask.CreateAsync(MyMapView.Map);
// Create the default parameters for the task, pass in the area of interest.
GenerateOfflineMapParameters parameters = await takeMapOfflineTask.CreateDefaultGenerateOfflineMapParametersAsync(_areaOfInterest);
#region overrides
// Generate parameter overrides for more in-depth control of the job.
GenerateOfflineMapParameterOverrides overrides = await takeMapOfflineTask.CreateGenerateOfflineMapParameterOverridesAsync(parameters);
// Configure the overrides using helper methods.
ConfigureTileLayerOverrides(overrides);
ConfigureLayerExclusion(overrides);
CropWaterPipes(overrides);
ApplyFeatureFilter(overrides);
// Create the job with the parameters and output location.
_generateOfflineMapJob = takeMapOfflineTask.GenerateOfflineMap(parameters, packagePath, overrides);
#endregion overrides
// Handle the progress changed event for the job.
_generateOfflineMapJob.ProgressChanged += OfflineMapJob_ProgressChanged;
// Await the job to generate geodatabases, export tile packages, and create the mobile map package.
GenerateOfflineMapResult results = await _generateOfflineMapJob.GetResultAsync();
// Check for job failure (writing the output was denied, e.g.).
if (_generateOfflineMapJob.Status != JobStatus.Succeeded)
{
MessageBox.Show("Generate offline map package failed.", "Job status");
BusyIndicator.Visibility = Visibility.Collapsed;
}
// Check for errors with individual layers.
if (results.LayerErrors.Any())
{
// Build a string to show all layer errors.
System.Text.StringBuilder errorBuilder = new System.Text.StringBuilder();
foreach (KeyValuePair <Layer, Exception> layerError in results.LayerErrors)
{
errorBuilder.AppendLine(string.Format("{0} : {1}", layerError.Key.Id, layerError.Value.Message));
}
// Show layer errors.
string errorText = errorBuilder.ToString();
MessageBox.Show(errorText, "Layer errors");
}
// Display the offline map.
MyMapView.Map = results.OfflineMap;
// Apply the original viewpoint for the offline map.
MyMapView.SetViewpoint(new Viewpoint(_areaOfInterest));
// Enable map interaction so the user can explore the offline data.
MyMapView.InteractionOptions.IsEnabled = true;
// Hide the "Take map offline" button.
takeOfflineArea.Visibility = Visibility.Collapsed;
// Show a message that the map is offline.
MessageArea.Visibility = Visibility.Visible;
}
catch (TaskCanceledException)
{
// Generate offline map task was canceled.
MessageBox.Show("Taking map offline was canceled");
}
catch (Exception ex)
{
// Exception while taking the map offline.
MessageBox.Show(ex.Message, "Offline map error");
}
finally
{
// Hide the activity indicator when the job is done.
BusyIndicator.Visibility = Visibility.Collapsed;
}
}
private async void Initialize()
{
// Apply initial display settings
UpdateDisplaySettings();
// Initialize the map with an oceans basemap
MyMapView.Map = new Map(Basemap.CreateOceans());
// Get the path to the ENC Exchange Set
string encPath = DataManager.GetDataFolder("9d2987a825c646468b3ce7512fb76e2d", "ExchangeSetwithoutUpdates", "ENC_ROOT",
"CATALOG.031");
// Create the Exchange Set
// Note: this constructor takes an array of paths because so that update sets can be loaded alongside base data
EncExchangeSet myEncExchangeSet = new EncExchangeSet(new string[] { encPath });
try
{
// Wait for the exchange set to load
await myEncExchangeSet.LoadAsync();
// Store a list of data set extent's - will be used to zoom the mapview to the full extent of the Exchange Set
List <Envelope> dataSetExtents = new List <Envelope>();
// Add each data set as a layer
foreach (EncDataset myEncDataSet in myEncExchangeSet.Datasets)
{
// Create the cell and layer
EncLayer myEncLayer = new EncLayer(new EncCell(myEncDataSet));
// Add the layer to the map
MyMapView.Map.OperationalLayers.Add(myEncLayer);
// Wait for the layer to load
await myEncLayer.LoadAsync();
// Add the extent to the list of extents
dataSetExtents.Add(myEncLayer.FullExtent);
}
// Use the geometry engine to compute the full extent of the ENC Exchange Set
Envelope fullExtent = GeometryEngine.CombineExtents(dataSetExtents);
// Set the viewpoint
MyMapView.SetViewpoint(new Viewpoint(fullExtent));
// Subscribe to notifications about leaving so that settings can be re-set
this.Unloaded += SampleUnloaded;
// Enable the setting change UI.
DayRadioButton.Checked += Setting_Checked;
DuskRadioButton.Checked += Setting_Checked;
NightRadioButton.Checked += Setting_Checked;
PaperPointRadioButton.Checked += Setting_Checked;
SymbolizedAreaRadioButton.Checked += Setting_Checked;
PlainAreaRadioButton.Checked += Setting_Checked;
SimplifiedRadioButton.Checked += Setting_Checked;
}
catch (Exception e)
{
await new MessageDialog2(e.ToString(), "Error").ShowAsync();
}
}
private async void CreateNewFeatureCollection()
{
// Create the schema for a points table (one text field to contain a name attribute)
List <Field> pointFields = new List <Field>();
Field placeField = new Field(FieldType.Text, "Place", "Place Name", 50);
pointFields.Add(placeField);
// Create the schema for a lines table (one text field to contain a name attribute)
List <Field> lineFields = new List <Field>();
Field boundaryField = new Field(FieldType.Text, "Boundary", "Boundary Name", 50);
lineFields.Add(boundaryField);
// Create the schema for a polygon table (one text field to contain a name attribute)
List <Field> polyFields = new List <Field>();
Field areaField = new Field(FieldType.Text, "AreaName", "Area Name", 50);
polyFields.Add(areaField);
// Instantiate FeatureCollectionTables with schema and geometry type
FeatureCollectionTable pointsTable = new FeatureCollectionTable(pointFields, GeometryType.Point, SpatialReferences.Wgs84);
FeatureCollectionTable linesTable = new FeatureCollectionTable(lineFields, GeometryType.Polyline, SpatialReferences.Wgs84);
FeatureCollectionTable polysTable = new FeatureCollectionTable(polyFields, GeometryType.Polygon, SpatialReferences.Wgs84);
// Set rendering for each table
pointsTable.Renderer = CreateRenderer(GeometryType.Point);
linesTable.Renderer = CreateRenderer(GeometryType.Polyline);
polysTable.Renderer = CreateRenderer(GeometryType.Polygon);
// Create a new point feature, provide geometry and attribute values
Feature pointFeature = pointsTable.CreateFeature();
pointFeature.SetAttributeValue(placeField, "Current location");
MapPoint point1 = new MapPoint(-79.497238, 8.849289, SpatialReferences.Wgs84);
pointFeature.Geometry = point1;
// Create a new line feature, provide geometry and attribute values
Feature lineFeature = linesTable.CreateFeature();
lineFeature.SetAttributeValue(boundaryField, "AManAPlanACanalPanama");
MapPoint point2 = new MapPoint(-80.035568, 9.432302, SpatialReferences.Wgs84);
Polyline line = new Polyline(new MapPoint[] { point1, point2 });
lineFeature.Geometry = line;
// Create a new polygon feature, provide geometry and attribute values
Feature polyFeature = polysTable.CreateFeature();
polyFeature.SetAttributeValue(areaField, "Restricted area");
MapPoint point3 = new MapPoint(-79.337936, 8.638903, SpatialReferences.Wgs84);
MapPoint point4 = new MapPoint(-79.11409, 8.895422, SpatialReferences.Wgs84);
Polygon poly = new Polygon(new MapPoint[] { point1, point3, point4 });
polyFeature.Geometry = poly;
try
{
// Add the new features to the appropriate feature collection table
await pointsTable.AddFeatureAsync(pointFeature);
await linesTable.AddFeatureAsync(lineFeature);
await polysTable.AddFeatureAsync(polyFeature);
// Create a feature collection and add the feature collection tables
FeatureCollection featuresCollection = new FeatureCollection();
featuresCollection.Tables.Add(pointsTable);
featuresCollection.Tables.Add(linesTable);
featuresCollection.Tables.Add(polysTable);
// Create a FeatureCollectionLayer
FeatureCollectionLayer collectionLayer = new FeatureCollectionLayer(featuresCollection);
// When the layer loads, zoom the map view to the extent of the feature collection
await collectionLayer.LoadAsync();
MyMapView.SetViewpoint(new Viewpoint(collectionLayer.FullExtent));
// Add the layer to the Map's Operational Layers collection
MyMapView.Map.OperationalLayers.Add(collectionLayer);
}
catch (Exception e)
{
await new MessageDialog(e.ToString(), "Error").ShowAsync();
}
}
/// <summary>
/// Runs a search and populates the map with results based on the provided information
/// </summary>
/// <param name="enteredText">Results to search for</param>
/// <param name="locationText">Location around which to find results</param>
/// <param name="restrictToExtent">If true, limits results to only those that are within the current extent</param>
private async void UpdateSearch(string enteredText, string locationText, bool restrictToExtent = false)
{
// Clear any existing markers
MyMapView.GraphicsOverlays.Clear();
// Return gracefully if the textbox is empty or the geocoder isn't ready
if (string.IsNullOrWhiteSpace(enteredText) || _geocoder == null)
{
return;
}
// Create the geocode parameters
GeocodeParameters parameters = new GeocodeParameters();
// Get the MapPoint for the current search location
MapPoint searchLocation = await GetSearchMapPoint(locationText);
// Update the geocode parameters if the map point is not null
if (searchLocation != null)
{
parameters.PreferredSearchLocation = searchLocation;
}
// Update the search area if desired
if (restrictToExtent)
{
// Get the current map extent
Geometry extent = MyMapView.VisibleArea;
// Update the search parameters
parameters.SearchArea = extent;
}
// Show the progress bar
MyProgressBar.Visibility = Visibility.Visible;
// Get the location information
IReadOnlyList <GeocodeResult> locations = await _geocoder.GeocodeAsync(enteredText, parameters);
// Stop gracefully and show a message if the geocoder does not return a result
if (locations.Count < 1)
{
MyProgressBar.Visibility = Visibility.Collapsed; // 1. Hide the progress bar
ShowStatusMessage("No results found"); // 2. Show a message
return; // 3. Stop
}
// Create the GraphicsOverlay so that results can be drawn on the map
GraphicsOverlay resultOverlay = new GraphicsOverlay();
// Add each address to the map
foreach (GeocodeResult location in locations)
{
// Get the Graphic to display
Graphic point = await GraphicForPoint(location.DisplayLocation);
// Add the specific result data to the point
point.Attributes["Match_Title"] = location.Label;
// Get the address for the point
IReadOnlyList <GeocodeResult> addresses = await _geocoder.ReverseGeocodeAsync(location.DisplayLocation);
// Add the first suitable address if possible
if (addresses.Count() > 0)
{
point.Attributes["Match_Address"] = addresses.First().Label;
}
// Add the Graphic to the GraphicsOverlay
resultOverlay.Graphics.Add(point);
}
// Hide the progress bar
MyProgressBar.Visibility = Visibility.Collapsed;
// Add the GraphicsOverlay to the MapView
MyMapView.GraphicsOverlays.Add(resultOverlay);
// Create a viewpoint for the extent containing all graphics
Viewpoint viewExtent = new Viewpoint(resultOverlay.Extent);
// Update the map viewpoint
MyMapView.SetViewpoint(viewExtent);
}
