private async void BtnZoomToFeatures_Click(object sender, EventArgs e)
{
// Create the query parameters
QueryParameters queryStates = new QueryParameters {
WhereClause = $"upper(ST) LIKE '%{txtStateEntry.Text.ToUpper()}%'"
};
// Get the extent from the query
Envelope resultExtent = await _myFeatureTable.QueryExtentAsync(queryStates);
// Return if there is no result (might happen if query is invalid)
if (resultExtent?.SpatialReference == null)
{
return;
}
// Create a viewpoint from the extent
Viewpoint resultViewpoint = new Viewpoint(resultExtent);
// Zoom to the viewpoint
await MyMapView.SetViewpointAsync(resultViewpoint);
// Update the UI
txtResults.Text = $"Zoomed to features in {txtStateEntry.Text}";
}
/// <summary>
/// Updates the map with the latest layer selection
/// </summary>
private async void UpdateMapDisplay(ObservableCollection <LayerDisplayVM> displayList)
{
// Remove all existing layers
MyMapView.Map.OperationalLayers.Clear();
// Get a list of selected LayerInfos
IEnumerable <WmsLayerInfo> selectedLayers = displayList.Where(vm => vm.IsEnabled).Select(vm => vm.Info);
// Return if no layers selected
if (selectedLayers.Count() < 1)
{
return;
}
// Create a new WmsLayer from the selected layers
WmsLayer myLayer = new WmsLayer(selectedLayers);
// Load the layer
await myLayer.LoadAsync();
// Add the layer to the map
MyMapView.Map.OperationalLayers.Add(myLayer);
// Update the viewpoint
await MyMapView.SetViewpointAsync(new Viewpoint(myLayer.FullExtent));
}
private async void BtnZoomToFeaturesClick(object sender, RoutedEventArgs e)
{
// Create the query parameters.
QueryParameters queryStates = new QueryParameters()
{
WhereClause = $"upper(State) LIKE '%{StateEntry.Text.ToUpper()}%'"
};
try
{
// Get the extent from the query.
Envelope resultExtent = await _featureTable.QueryExtentAsync(queryStates);
// Return if there is no result (might happen if query is invalid).
if (resultExtent?.SpatialReference == null)
{
return;
}
// Create a viewpoint from the extent.
Viewpoint resultViewpoint = new Viewpoint(resultExtent);
// Zoom to the viewpoint.
await MyMapView.SetViewpointAsync(resultViewpoint);
// Update the UI.
ResultView.Text = $"Zoomed to features in {StateEntry.Text}";
ResultView.Visibility = Visibility.Visible;
}
catch (Exception ex)
{
await new MessageDialog(ex.ToString(), "Error").ShowAsync();
}
}
/// <summary>
/// Updates the map with the latest layer selection.
/// </summary>
private async void UpdateMapDisplay(ObservableCollection <LayerDisplayVM> displayList)
{
// Remove all existing layers.
MyMapView.Map.OperationalLayers.Clear();
// Get a list of selected LayerInfos.
List <WmsLayerInfo> selectedLayers = displayList.Where(vm => vm.IsEnabled).Select(vm => vm.Info).ToList();
// Return if no layers selected.
if (!selectedLayers.Any())
{
return;
}
// Create a new WmsLayer from the selected layers.
WmsLayer myLayer = new WmsLayer(selectedLayers);
try
{
// Load the layer.
await myLayer.LoadAsync();
// Add the layer to the map.
MyMapView.Map.OperationalLayers.Add(myLayer);
// Update the viewpoint.
await MyMapView.SetViewpointAsync(new Viewpoint(myLayer.FullExtent));
}
catch (Exception e)
{
await Application.Current.MainPage.DisplayAlert("Error", e.ToString(), "OK");
}
}
private async void Initialize()
{
// Create a new map
MyMapView.Map = new Map(Basemap.CreateLightGrayCanvas());
// Get the full path
string geoPackagePath = GetGeoPackagePath();
// Open the GeoPackage
GeoPackage myGeoPackage = await GeoPackage.OpenAsync(geoPackagePath);
// Read the raster images and get the first one
Raster gpkgRaster = myGeoPackage.GeoPackageRasters.FirstOrDefault();
// Make sure an image was found in the package
if (gpkgRaster == null)
{
return;
}
// Create a layer to show the raster
RasterLayer newLayer = new RasterLayer(gpkgRaster);
await newLayer.LoadAsync();
// Set the viewpoint
await MyMapView.SetViewpointAsync(new Viewpoint(newLayer.FullExtent));
// Add the image as a raster layer to the map (with default symbology)
MyMapView.Map.OperationalLayers.Add(newLayer);
}
private async void BtnZoomToFeatures_Click(object sender, EventArgs e)
{
// Create the query parameters.
QueryParameters queryStates = new QueryParameters {
WhereClause = $"upper(State) LIKE '%{txtStateEntry.Text.ToUpper()}%'"
};
try
{
// Get the extent from the query.
Envelope resultExtent = await _featureTable.QueryExtentAsync(queryStates);
// Return if there is no result (might happen if query is invalid).
if (resultExtent?.SpatialReference == null)
{
return;
}
// Create a viewpoint from the extent.
Viewpoint resultViewpoint = new Viewpoint(resultExtent);
// Zoom to the viewpoint.
await MyMapView.SetViewpointAsync(resultViewpoint);
// Update the UI.
txtResults.Text = $"Zoomed to features in {txtStateEntry.Text}";
}
catch (Exception ex)
{
await((Page)Parent).DisplayAlert("Error", ex.ToString(), "OK");
}
}
private async void BtnZoomToFeaturesClick(object sender, RoutedEventArgs e)
{
// Create the query parameters.
QueryParameters queryStates = new QueryParameters()
{
WhereClause = string.Format("upper(ST) LIKE '%{0}%'", StateTextbox.Text.ToUpper())
};
// Get the extent from the query.
Envelope resultExtent = await _myFeatureTable.QueryExtentAsync(queryStates);
// Return if there is no result (might happen if query is invalid).
if (resultExtent == null || resultExtent.SpatialReference == null)
{
ResultsTextbox.Text = "No results. Search for an abbreviated name (e.g. NH).";
return;
}
// Create a viewpoint from the extent.
Viewpoint resultViewpoint = new Viewpoint(resultExtent);
// Zoom to the viewpoint.
await MyMapView.SetViewpointAsync(resultViewpoint);
// Update the UI.
ResultsTextbox.Text = string.Format("Zoomed to features in {0}", StateTextbox.Text);
}
private async void BtnZoomToFeaturesClick(object sender, RoutedEventArgs e)
{
try
{
// Create the query parameters.
QueryParameters queryStates = new QueryParameters {
WhereClause = $"upper(State) LIKE '%{StateTextbox.Text}%'"
};
// Get the extent from the query.
Envelope resultExtent = await _featureTable.QueryExtentAsync(queryStates);
// Return if there is no result (might happen if query is invalid).
if (resultExtent?.SpatialReference == null)
{
ResultsTextbox.Text = "No results. Search for an abbreviated name (e.g. NH).";
return;
}
// Create a viewpoint from the extent.
Viewpoint resultViewpoint = new Viewpoint(resultExtent);
// Zoom to the viewpoint.
await MyMapView.SetViewpointAsync(resultViewpoint);
// Update the UI.
ResultsTextbox.Text = $"Zoomed to features in {StateTextbox.Text}";
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error");
}
}
private async Task Initialize()
{
// Handle the login to the feature service.
AuthenticationManager.Current.ChallengeHandler = new ChallengeHandler(async(info) =>
{
try
{
// WARNING: Never hardcode login information in a production application. This is done solely for the sake of the sample.
string sampleServer7User = "******";
string sampleServer7Pass = "******";
return(await AuthenticationManager.Current.GenerateCredentialAsync(info.ServiceUri, sampleServer7User, sampleServer7Pass));
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
return(null);
}
});
try
{
// Create a map.
MyMapView.Map = new Map(BasemapStyle.ArcGISStreets);
// Populate the combo boxes.
AccessBox.ItemsSource = new List <VersionAccess> {
VersionAccess.Public, VersionAccess.Protected, VersionAccess.Private
};
DamageBox.ItemsSource = new List <string> {
"Destroyed", "Inaccessible", "Major", "Minor", "Affected"
};
// Create and load a service geodatabase.
_serviceGeodatabase = new ServiceGeodatabase(new Uri("https://sampleserver7.arcgisonline.com/server/rest/services/DamageAssessment/FeatureServer/0"));
await _serviceGeodatabase.LoadAsync();
// When the service geodatabase has loaded get the default version name.
CurrentVersionLabel.Content = $"Current version: {_serviceGeodatabase.DefaultVersionName}";
// Get the service feature table from the service geodatabase.
_featureTable = _serviceGeodatabase.GetTable(0);
// Create a feature layer from the service feature table and add it to the map.
_featureLayer = new FeatureLayer(_featureTable);
MyMapView.Map.OperationalLayers.Add(_featureLayer);
await _featureLayer.LoadAsync();
// When the feature layer has loaded set the viewpoint and update the UI.
await MyMapView.SetViewpointAsync(new Viewpoint(_featureLayer.FullExtent));
// Enable the UI.
CreateVersionButton.IsEnabled = true;
MyMapView.GeoViewTapped += MyMapView_GeoViewTapped;
}
catch (Exception ex)
{
ShowAlert(ex.Message, ex.GetType().Name);
}
}
private async void CollectionLayer_Loaded(object sender, EventArgs e)
{
var collectionLayer = sender as FeatureCollectionLayer;
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
MyMapView.SetViewpointAsync(new Viewpoint(collectionLayer.FullExtent));
});
}
private async void OnViewpointsClicked(object sender, EventArgs e)
{
try
{
// Show sheet and get title from the selection
string selectedMapTitle =
await((Page)Parent).DisplayActionSheet("Select viewpoint", "Cancel", null, titles);
// If selected cancel do nothing
if (selectedMapTitle == "Cancel")
{
return;
}
switch (selectedMapTitle)
{
case "Geometry":
// Set Viewpoint using Redlands envelope defined above and a padding of 20
await MyMapView.SetViewpointGeometryAsync(RedlandsEnvelope, 20);
break;
case "Center & Scale":
// Set Viewpoint so that it is centered on the London coordinates defined above
await MyMapView.SetViewpointCenterAsync(LondonCoords);
// Set the Viewpoint scale to match the specified scale
await MyMapView.SetViewpointScaleAsync(LondonScale);
break;
case "Animate":
// Navigate to full extent of the first baselayer before animating to specified geometry
await MyMapView.SetViewpointAsync(
new Viewpoint(MyMapView.Map.Basemap.BaseLayers.First().FullExtent));
// Create a new Viewpoint using the specified geometry
Viewpoint viewpoint = new Viewpoint(EdinburghEnvelope);
// Set Viewpoint of MapView to the Viewpoint created above and animate to it using a timespan of 5 seconds
await MyMapView.SetViewpointAsync(viewpoint, TimeSpan.FromSeconds(5));
break;
default:
break;
}
}
catch (Exception ex)
{
await Application.Current.MainPage.DisplayAlert("Error", ex.ToString(), "OK");
}
}
private async void OnButtonClick(object sender, RoutedEventArgs e)
{
try
{
// Get .Content from the selected item
Button myButton = (Button)sender;
string selectedMapTitle = myButton.Content.ToString();
switch (selectedMapTitle)
{
case "Geometry":
// Set Viewpoint using Redlands envelope defined above and a padding of 20
await MyMapView.SetViewpointGeometryAsync(_redlandsEnvelope, 20);
break;
case "Center and Scale":
// Set Viewpoint so that it is centered on the London coordinates defined above
await MyMapView.SetViewpointCenterAsync(_londonCoords);
// Set the Viewpoint scale to match the specified scale
await MyMapView.SetViewpointScaleAsync(_londonScale);
break;
case "Animate":
// Navigate to full extent of the first baselayer before animating to specified geometry
await MyMapView.SetViewpointAsync(
new Viewpoint(MyMapView.Map.Basemap.BaseLayers.First().FullExtent));
// Create a new Viewpoint using the specified geometry
Viewpoint viewpoint = new Viewpoint(_edinburghEnvelope);
// Set Viewpoint of MapView to the Viewpoint created above and animate to it using a timespan of 5 seconds
await MyMapView.SetViewpointAsync(viewpoint, TimeSpan.FromSeconds(5));
break;
default:
break;
}
}
catch (Exception ex)
{
await new MessageDialog2(ex.ToString(), "Error").ShowAsync();
}
}
private async void Initialize()
{
// Assign a new map to the MapView
MyMapView.Map = new Map
{
// Set the basemap to Streets
Basemap = new Basemap(BasemapStyle.ArcGISStreets)
};
// Create a new image service raster from the Uri
ImageServiceRaster myImageServiceRaster = new ImageServiceRaster(_myUri);
try
{
// Load the image service raster
await myImageServiceRaster.LoadAsync();
// Get the ArcGIS image service info (metadata) from the image service raster
ArcGISImageServiceInfo myArcGISImageServiceInfo = myImageServiceRaster.ServiceInfo;
// Get the full extent envelope of the image service raster (the Charlotte, NC area)
Envelope myEnvelope = myArcGISImageServiceInfo.FullExtent;
// Define a new view point from the full extent envelope
Viewpoint myViewPoint = new Viewpoint(myEnvelope);
// Zoom to the area of the full extent envelope of the image service raster
await MyMapView.SetViewpointAsync(myViewPoint);
// Get the rendering rule info (i.e. definitions of how the image should be drawn) info from the image service raster
_myReadOnlyListRenderRuleInfos = myArcGISImageServiceInfo.RenderingRuleInfos;
// Loop through each rendering rule info
foreach (RenderingRuleInfo myRenderingRuleInfo in _myReadOnlyListRenderRuleInfos)
{
// Get the name of the rendering rule info
string myRenderingRuleName = myRenderingRuleInfo.Name;
// Add the name of the rendering rule info into the list of names
_names.Add(myRenderingRuleName);
}
// Call the function to display the image service raster based up on user choice of rendering rules
await ChangeRenderingRuleAsync();
}
catch (Exception e)
{
await Application.Current.MainPage.DisplayAlert("Error", e.ToString(), "OK");
}
}
private async void Initialize()
{
// Assign a new map to the MapView
MyMapView.Map = new Map
{
// Set the basemap to Streets
Basemap = new Basemap(BasemapStyle.ArcGISStreets)
};
// Create a new image service raster from the Uri
ImageServiceRaster myImageServiceRaster = new ImageServiceRaster(_myUri);
try
{
// Load the image service raster
await myImageServiceRaster.LoadAsync();
// Get the ArcGIS image service info (metadata) from the image service raster
ArcGISImageServiceInfo myArcGISImageServiceInfo = myImageServiceRaster.ServiceInfo;
// Get the full extent envelope of the image service raster (the Charlotte, NC area)
Envelope myEnvelope = myArcGISImageServiceInfo.FullExtent;
// Define a new view point from the full extent envelope
Viewpoint myViewPoint = new Viewpoint(myEnvelope);
// Zoom to the area of the full extent envelope of the image service raster
await MyMapView.SetViewpointAsync(myViewPoint);
// Get the rendering rule info (i.e. definitions of how the image should be drawn) info from the image service raster
_myReadOnlyListRenderRuleInfos = myArcGISImageServiceInfo.RenderingRuleInfos;
// Loop through each rendering rule info
foreach (RenderingRuleInfo myRenderingRuleInfo in _myReadOnlyListRenderRuleInfos)
{
// Get the name of the rendering rule info
string myRenderingRuleName = myRenderingRuleInfo.Name;
// Add the name of the rendering rule info to the combo box
RenderingRuleChooser.Items.Add(myRenderingRuleName);
}
// Set the combo box index to the first rendering rule info name
RenderingRuleChooser.SelectedIndex = 0;
}
catch (Exception e)
{
MessageBox.Show(e.ToString(), "Error");
}
}
private async void Initialize()
{
// Create new Map with basemap
Map myMap = new Map(Basemap.CreateTopographic());
// Provide Map to the MapView
MyMapView.Map = myMap;
// Create geometry for the center of the map
MapPoint centerGeometry = new MapPoint(-13549402.587055, 4397264.96879385, SpatialReference.Create(3857));
// Set the map's viewpoint to highlight the desired content
await MyMapView.SetViewpointAsync(new Viewpoint(centerGeometry, 201555));
// Get the path to the geodatabase
string geodbFilePath = GetGeodatabasePath();
// Load the geodatabase from local storage
Geodatabase baseGeodatabase = await Geodatabase.OpenAsync(geodbFilePath);
// Get the path to the symbol dictionary
string symbolFilepath = GetStyleDictionaryPath();
// Load the symbol dictionary from local storage
// Note that the type of the symbol definition must be explicitly provided along with the file name
DictionarySymbolStyle symbolStyle = await DictionarySymbolStyle.OpenAsync("mil2525d", symbolFilepath);
// Add geodatabase features to the map, using the defined symbology
foreach (FeatureTable table in baseGeodatabase.GeodatabaseFeatureTables)
{
// Load the table
await table.LoadAsync();
// Create the feature layer from the table
FeatureLayer myLayer = new FeatureLayer(table);
// Load the layer
await myLayer.LoadAsync();
// Create a Dictionary Renderer using the DictionarySymbolStyle
DictionaryRenderer dictRenderer = new DictionaryRenderer(symbolStyle);
// Apply the dictionary renderer to the layer
myLayer.Renderer = dictRenderer;
// Add the layer to the map
myMap.OperationalLayers.Add(myLayer);
}
}
private void LocationDisplay_LocationChanged(object sender, Esri.ArcGISRuntime.Location.Location e)
{
// Return if position is null; event is called with null position when location display is turned on
if (e.Position == null) { return; }
// Unsubscribe to the event (only want to zoom once)
((LocationDisplay)sender).LocationChanged -= LocationDisplay_LocationChanged;
// Needed because the event is called from a background thread, but the code is manipulating UI
Dispatcher.Invoke(() =>
{
// Zoom to the location
MyMapView.SetViewpointAsync(new Viewpoint(e.Position, 100000));
});
}
private async Task Initialize()
{
// Create a raster layer using an image service.
_imageServiceRaster = new ImageServiceRaster(new Uri("https://sampleserver7.arcgisonline.com/server/rest/services/amberg_germany/ImageServer"));
RasterLayer rasterLayer = new RasterLayer(_imageServiceRaster);
await rasterLayer.LoadAsync();
// Create a map with the raster layer.
MyMapView.Map = new Map(BasemapStyle.ArcGISTopographic);
MyMapView.Map.OperationalLayers.Add(rasterLayer);
await MyMapView.SetViewpointAsync(new Viewpoint(rasterLayer.FullExtent));
// Populate the combo box.
MosaicRulesBox.ItemsSource = _mosaicRules.Keys;
MosaicRulesBox.SelectedIndex = 0;
}
private async void Initialize()
{
// Initialize the map with an oceans basemap
MyMapView.Map = new Map(BasemapStyle.ArcGISOceans);
// 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(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)
{
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
await MyMapView.SetViewpointAsync(new Viewpoint(fullExtent));
}
catch (Exception e)
{
await Application.Current.MainPage.DisplayAlert("Error", e.ToString(), "OK");
}
}
private async void doWheelZoomSim(int seconds = 3)
{
// Create a new Viewpoint using the specified geometry
Viewpoint viewpoint = new Viewpoint(_Oslo);
try
{
// Set Viewpoint of MapView to the Viewpoint created above and animate to it using a timespan of 5 seconds
_time = DateTime.Now;
await MyMapView.SetViewpointAsync(viewpoint, TimeSpan.FromSeconds(seconds));
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error");
}
}
private async void CalculateViewshed(MapPoint location)
{
// Get the file name
MapPoint Point = (MapPoint)GeometryEngine.Project(location, SpatialReferences.Wgs84);
RunCmd(Point.X, Point.Y);
string filepath = "C:\\Users\\zia13430\\dest.tif";
// Load the raster file
Raster myRasterFile = new Raster(filepath);
// Create the layer
RasterLayer myRasterLayer = new RasterLayer(myRasterFile);
// Create a color map where values 0-149 are red and 150-249 are yellow.
IEnumerable <Color> colors = new int[250]
.Select((c, i) => i < 150 ? Color.Red : Color.Red);
// Create a colormap renderer.
ColormapRenderer colormapRenderer = new ColormapRenderer(colors);
// Set the colormap renderer on the raster layer.
myRasterLayer.Renderer = colormapRenderer;
myRasterLayer.Opacity = 0.6;
await MyMapView.SetViewpointAsync(new Viewpoint(Point, 75000), TimeSpan.FromSeconds(1));
//myMap.InitialViewpoint = ;
// Add the layer to the map
myMap.OperationalLayers.Clear();
myMap.OperationalLayers.Add(myRasterLayer);
try
{
}
catch (Exception ex)
{
MessageBox.Show("An error occurred. " + ex.ToString(), "Sample error");
}
finally
{
// Indicate that the geoprocessing is not running
SetBusy(false);
}
}
private async void OnSetViewCommand()
{
var center = GetRandomPoint();
var scale = 625;
if ((MyMapView.MapScale < 200000))
{
scale = 1000000;
}
if (UseAnimation)
{
await MyMapView.SetViewpointAsync(new Viewpoint(center, scale));
}
else
{
await MyMapView.SetViewpointAsync(new Viewpoint(center, scale), TimeSpan.Zero);
}
}
private async void OnButtonClick(object sender, RoutedEventArgs e)
{
// Get content from the selected item
Button myButton = sender as Button;
switch (myButton.Content.ToString())
{
case "Geometry":
// Set Viewpoint using Redlands envelope defined above and a padding of 20
await MyMapView.SetViewpointGeometryAsync(_redlandsEnvelope, 20);
break;
case "Center and Scale":
// Set Viewpoint so that it is centered on the London coordinates defined above
await MyMapView.SetViewpointCenterAsync(_londonCoords);
// Set the Viewpoint scale to match the specified scale
await MyMapView.SetViewpointScaleAsync(_londonScale);
break;
case "Animate":
// Navigate to full extent of the first baselayer before animating to specified geometry
await MyMapView.SetViewpointAsync(
new Viewpoint(Basemap.FullExtent));
// Create a new Viewpoint using the specified geometry
var viewpoint = new Viewpoint(_edinburghEnvelope);
// Set Viewpoint of MapView to the Viewpoint created above and animate to it using a timespan of 5 seconds
await MyMapView.SetViewpointAsync(viewpoint, TimeSpan.FromSeconds(5));
break;
default:
break;
}
}
private async void Initialize()
{
// Set up the basemap.
MyMapView.Map = new Map(Basemap.CreateDarkGrayCanvasVector());
// Create the dataset.
KmlDataset dataset = new KmlDataset(new Uri("https://www.wpc.ncep.noaa.gov/kml/noaa_chart/WPC_Day1_SigWx.kml"));
// Create the layer from the dataset.
_forecastLayer = new KmlLayer(dataset);
// Add the layer to the map.
MyMapView.Map.OperationalLayers.Add(_forecastLayer);
// Zoom to the extent of the United States.
await MyMapView.SetViewpointAsync(new Viewpoint(_usEnvelope));
// Listen for taps to identify features.
MyMapView.GeoViewTapped += MyMapView_GeoViewTapped;
}
private void SetExtent()
{
// Get all of the graphics contained in the graphics overlay
GraphicCollection myGraphicCollection = _overlay.Graphics;
// Create a new envelope builder using the same spatial reference as the graphics
EnvelopeBuilder myEnvelopeBuilder = new EnvelopeBuilder(SpatialReferences.Wgs84);
// Loop through each graphic in the graphic collection
foreach (Graphic oneGraphic in myGraphicCollection)
{
// Union the extent of each graphic in the envelope builder
myEnvelopeBuilder.UnionOf(oneGraphic.Geometry.Extent);
}
// Expand the envelope builder by 30%
myEnvelopeBuilder.Expand(1.3);
// Adjust the viewable area of the map to encompass all of the graphics in the
// graphics overlay plus an extra 30% margin for better viewing
MyMapView.SetViewpointAsync(new Viewpoint(myEnvelopeBuilder.Extent));
}
private async void Initialize()
{
// Initialize the map with an oceans basemap
MyMapView.Map = new Map(Basemap.CreateOceans());
// Get the path to the ENC Exchange Set
string encPath = GetEncPath();
// Create the cell and layer
EncLayer encLayer = new EncLayer(new EncCell(encPath));
// Add the layer to the map
MyMapView.Map.OperationalLayers.Add(encLayer);
// Wait for the layer to load
await encLayer.LoadAsync();
// Set the viewpoint
await MyMapView.SetViewpointAsync(new Viewpoint(encLayer.FullExtent));
// Subscribe to tap events (in order to use them to identify and select features)
MyMapView.GeoViewTapped += MyMapView_GeoViewTapped;
}
private async void Initialize()
{
// Create a new map
MyMapView.Map = new Map(BasemapStyle.ArcGISLightGray);
// Get the full path
string geoPackagePath = GetGeoPackagePath();
try
{
// Open the GeoPackage
GeoPackage myGeoPackage = await GeoPackage.OpenAsync(geoPackagePath);
// Read the raster images and get the first one
Raster gpkgRaster = myGeoPackage.GeoPackageRasters.FirstOrDefault();
// Make sure an image was found in the package
if (gpkgRaster == null)
{
return;
}
// Create a layer to show the raster
RasterLayer newLayer = new RasterLayer(gpkgRaster);
await newLayer.LoadAsync();
// Set the viewpoint
await MyMapView.SetViewpointAsync(new Viewpoint(newLayer.FullExtent));
// Add the image as a raster layer to the map (with default symbology)
MyMapView.Map.OperationalLayers.Add(newLayer);
}
catch (Exception e)
{
await Application.Current.MainPage.DisplayAlert("Error", e.ToString(), "OK");
}
}
private async void OnAnalyzeHotspotsClicked(object sender, RoutedEventArgs e)
{
// Clear any existing results
MyMapView.Map.OperationalLayers.Clear();
// Show the waiting indication
ShowBusyOverlay();
// Get the 'from' and 'to' dates from the date pickers for the geoprocessing analysis
DateTime myFromDate = FromDate.SelectedDate.Value;
DateTime myToDate = ToDate.SelectedDate.Value;
// The end date must be at least one day after the start date
if (myToDate <= myFromDate.AddDays(1))
{
// Show error message
MessageBox.Show(
"Please select valid time range. There has to be at least one day in between To and From dates.",
"Invalid date range");
// Remove the waiting
ShowBusyOverlay(false);
return;
}
// Create the parameters that are passed to the used geoprocessing task
GeoprocessingParameters myHotspotParameters = new GeoprocessingParameters(GeoprocessingExecutionType.AsynchronousSubmit);
// Construct the date query
string myQueryString = string.Format("(\"DATE\" > date '{0:yyyy-MM-dd} 00:00:00' AND \"DATE\" < date '{1:yyyy-MM-dd} 00:00:00')", myFromDate, myToDate);
// Add the query that contains the date range used in the analysis
myHotspotParameters.Inputs.Add("Query", new GeoprocessingString(myQueryString));
// Create job that handles the communication between the application and the geoprocessing task
_hotspotJob = _hotspotTask.CreateJob(myHotspotParameters);
try
{
// Execute the geoprocessing analysis and wait for the results
GeoprocessingResult myAnalysisResult = await _hotspotJob.GetResultAsync();
// Add results to a map using map server from a geoprocessing task
// Load to get access to full extent
await myAnalysisResult.MapImageLayer.LoadAsync();
// Add the analysis layer to the map view
MyMapView.Map.OperationalLayers.Add(myAnalysisResult.MapImageLayer);
// Zoom to the results
await MyMapView.SetViewpointAsync(new Viewpoint(myAnalysisResult.MapImageLayer.FullExtent));
}
catch (TaskCanceledException)
{
// This is thrown if the task is canceled. Ignore.
}
catch (Exception ex)
{
// Display error messages if the geoprocessing task fails
if (_hotspotJob.Status == JobStatus.Failed && _hotspotJob.Error != null)
{
MessageBox.Show("Executing geoprocessing failed. " + _hotspotJob.Error.Message, "Geoprocessing error");
}
else
{
MessageBox.Show("An error occurred. " + ex, "Sample error");
}
}
finally
{
// Remove the waiting
ShowBusyOverlay(false);
}
}
private async void Initialize()
{
try
{
// Disable the UI.
FilterOptions.Visibility = Visibility.Collapsed;
// Create and load the utility network.
_utilityNetwork = await UtilityNetwork.CreateAsync(new Uri(FeatureServiceUrl));
// Create a map with layers in this utility network.
MyMapView.Map = new Map(Basemap.CreateStreetsNightVector());
MyMapView.Map.OperationalLayers.Add(new FeatureLayer(new Uri($"{FeatureServiceUrl}/{LineLayerId}")));
MyMapView.Map.OperationalLayers.Add(new FeatureLayer(new Uri($"{FeatureServiceUrl}/{DeviceLayerId}")));
// Get a trace configuration from a tier.
UtilityDomainNetwork domainNetwork = _utilityNetwork.Definition.GetDomainNetwork(DomainNetworkName) ?? throw new ArgumentException(DomainNetworkName);
UtilityTier tier = domainNetwork.GetTier(TierName) ?? throw new ArgumentException(TierName);
_configuration = tier.TraceConfiguration;
// Create a trace filter.
_configuration.Filter = new UtilityTraceFilter();
// Get a default starting location.
UtilityNetworkSource networkSource = _utilityNetwork.Definition.GetNetworkSource(NetworkSourceName) ?? throw new ArgumentException(NetworkSourceName);
UtilityAssetGroup assetGroup = networkSource.GetAssetGroup(AssetGroupName) ?? throw new ArgumentException(AssetGroupName);
UtilityAssetType assetType = assetGroup.GetAssetType(AssetTypeName) ?? throw new ArgumentException(AssetTypeName);
Guid globalId = Guid.Parse(GlobalId);
_startingLocation = _utilityNetwork.CreateElement(assetType, globalId);
// Create a graphics overlay.
GraphicsOverlay overlay = new GraphicsOverlay();
MyMapView.GraphicsOverlays.Add(overlay);
// Display starting location.
IEnumerable <ArcGISFeature> elementFeatures = await _utilityNetwork.GetFeaturesForElementsAsync(new List <UtilityElement> {
_startingLocation
});
MapPoint startingLocationGeometry = elementFeatures.FirstOrDefault().Geometry as MapPoint;
Symbol symbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.Cross, System.Drawing.Color.LimeGreen, 25d);
Graphic graphic = new Graphic(startingLocationGeometry, symbol);
overlay.Graphics.Add(graphic);
// Set the starting viewpoint.
await MyMapView.SetViewpointAsync(new Viewpoint(startingLocationGeometry, 3000));
// Build the choice list for categories populated with the `Name` property of each `UtilityCategory` in the `UtilityNetworkDefinition`.
Categories.ItemsSource = _utilityNetwork.Definition.Categories;
Categories.SelectedItem = _utilityNetwork.Definition.Categories.First();
// Enable the UI.
FilterOptions.Visibility = Visibility.Visible;
}
catch (Exception ex)
{
await new MessageDialog(ex.Message, ex.GetType().Name).ShowAsync();
}
finally
{
LoadingBar.Visibility = Visibility.Collapsed;
}
}
private async void Initialize()
{
try
{
// Create the utility network.
_utilityNetwork = await UtilityNetwork.CreateAsync(new Uri(FeatureServerUrl));
// Create the map.
MyMapView.Map = new Map(Basemap.CreateTopographicVector());
// Get all of the edges and junctions in the network.
IEnumerable <UtilityNetworkSource> edges = _utilityNetwork.Definition.NetworkSources.Where(n => n.SourceType == UtilityNetworkSourceType.Edge);
IEnumerable <UtilityNetworkSource> junctions = _utilityNetwork.Definition.NetworkSources.Where(n => n.SourceType == UtilityNetworkSourceType.Junction);
// Add all edges that are not subnet lines to the map.
foreach (UtilityNetworkSource source in edges)
{
if (source.SourceUsageType != UtilityNetworkSourceUsageType.SubnetLine && source.FeatureTable != null)
{
MyMapView.Map.OperationalLayers.Add(new FeatureLayer(source.FeatureTable));
}
}
// Add all junctions to the map.
foreach (UtilityNetworkSource source in junctions)
{
if (source.FeatureTable != null)
{
MyMapView.Map.OperationalLayers.Add(new FeatureLayer(source.FeatureTable));
}
}
// Create a graphics overlay for associations.
_associationsOverlay = new GraphicsOverlay();
MyMapView.GraphicsOverlays.Add(_associationsOverlay);
// Symbols for the associations.
Symbol attachmentSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Dot, Color.Green, 5d);
Symbol connectivitySymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Dot, Color.Red, 5d);
// Create a renderer for the associations.
var attachmentValue = new UniqueValue("Attachment", string.Empty, attachmentSymbol, UtilityAssociationType.Attachment.ToString());
var connectivityValue = new UniqueValue("Connectivity", string.Empty, connectivitySymbol, UtilityAssociationType.Connectivity.ToString());
_associationsOverlay.Renderer = new UniqueValueRenderer(new List <string> {
"AssociationType"
}, new List <UniqueValue> {
attachmentValue, connectivityValue
}, string.Empty, null);
// Populate the legend in the UI.
RuntimeImage attachmentSwatch = await attachmentSymbol.CreateSwatchAsync();
AttachmentImage.Source = await Esri.ArcGISRuntime.Xamarin.Forms.RuntimeImageExtensions.ToImageSourceAsync(attachmentSwatch);
RuntimeImage connectSwatch = await connectivitySymbol.CreateSwatchAsync();
ConnectivityImage.Source = await Esri.ArcGISRuntime.Xamarin.Forms.RuntimeImageExtensions.ToImageSourceAsync(connectSwatch);
// Set the starting viewpoint.
await MyMapView.SetViewpointAsync(InitialViewpoint);
// Add the associations in the starting viewpoint.
AddAssociations();
}
catch (Exception ex)
{
await Application.Current.MainPage.DisplayAlert(ex.GetType().Name, ex.Message, "OK");
}
}
private async void Initialize()
{
// As of ArcGIS Enterprise 10.8.1, using utility network functionality requires a licensed user. The following login for the sample server is licensed to perform utility network operations.
AuthenticationManager.Current.ChallengeHandler = new ChallengeHandler(async(info) =>
{
try
{
// WARNING: Never hardcode login information in a production application. This is done solely for the sake of the sample.
string sampleServer7User = "******";
string sampleServer7Pass = "******";
return(await AuthenticationManager.Current.GenerateCredentialAsync(info.ServiceUri, sampleServer7User, sampleServer7Pass));
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
return(null);
}
});
try
{
// Create the utility network.
_utilityNetwork = await UtilityNetwork.CreateAsync(new Uri(FeatureServerUrl));
// Create the map.
MyMapView.Map = new Map(BasemapStyle.ArcGISTopographic);
// Get all of the edges and junctions in the network.
IEnumerable <UtilityNetworkSource> edges = _utilityNetwork.Definition.NetworkSources.Where(n => n.SourceType == UtilityNetworkSourceType.Edge);
IEnumerable <UtilityNetworkSource> junctions = _utilityNetwork.Definition.NetworkSources.Where(n => n.SourceType == UtilityNetworkSourceType.Junction);
// Add all edges that are not subnet lines to the map.
foreach (UtilityNetworkSource source in edges)
{
if (source.SourceUsageType != UtilityNetworkSourceUsageType.SubnetLine && source.FeatureTable != null)
{
MyMapView.Map.OperationalLayers.Add(new FeatureLayer(source.FeatureTable));
}
}
// Add all junctions to the map.
foreach (UtilityNetworkSource source in junctions)
{
if (source.FeatureTable != null)
{
MyMapView.Map.OperationalLayers.Add(new FeatureLayer(source.FeatureTable));
}
}
// Create a graphics overlay for associations.
_associationsOverlay = new GraphicsOverlay();
MyMapView.GraphicsOverlays.Add(_associationsOverlay);
// Symbols for the associations.
Symbol attachmentSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Dot, Color.Green, 5d);
Symbol connectivitySymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Dot, Color.Red, 5d);
// Create a renderer for the associations.
var attachmentValue = new UniqueValue("Attachment", string.Empty, attachmentSymbol, UtilityAssociationType.Attachment.ToString());
var connectivityValue = new UniqueValue("Connectivity", string.Empty, connectivitySymbol, UtilityAssociationType.Connectivity.ToString());
_associationsOverlay.Renderer = new UniqueValueRenderer(new List <string> {
"AssociationType"
}, new List <UniqueValue> {
attachmentValue, connectivityValue
}, string.Empty, null);
// Populate the legend in the UI.
Dictionary <UtilityAssociationType, System.Windows.Media.ImageSource> legend;
legend = new Dictionary <UtilityAssociationType, System.Windows.Media.ImageSource>();
RuntimeImage attachmentSwatch = await attachmentSymbol.CreateSwatchAsync();
legend[UtilityAssociationType.Attachment] = await attachmentSwatch?.ToImageSourceAsync();
RuntimeImage connectSwatch = await connectivitySymbol.CreateSwatchAsync();
legend[UtilityAssociationType.Connectivity] = await connectSwatch?.ToImageSourceAsync();
AssociationLegend.ItemsSource = legend;
// Set the starting viewpoint.
await MyMapView.SetViewpointAsync(InitialViewpoint);
// Add the associations in the starting viewpoint.
AddAssociations();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().Name, MessageBoxButton.OK, MessageBoxImage.Error);
}
}