private void LayerTreeView_OnSelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
// Get the KML node.
LayerDisplayVM selectedItem = (LayerDisplayVM)e.NewValue;
NavigateToNode(selectedItem.Node);
}
private async void Initialize()
{
// Add a basemap.
MySceneView.Scene = new Scene(Basemap.CreateImageryWithLabels());
MySceneView.Scene.BaseSurface.ElevationSources.Add(new ArcGISTiledElevationSource(new Uri("https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer")));
// Get the URL to the data.
Uri kmlUrl = new Uri(DataManager.GetDataFolder("da301cb122874d5497f8a8f6c81eb36e", "esri_test_data.kmz"));
// Create the KML dataset and layer.
KmlDataset dataset = new KmlDataset(kmlUrl);
KmlLayer layer = new KmlLayer(dataset);
// Add the layer to the map.
MySceneView.Scene.OperationalLayers.Add(layer);
await dataset.LoadAsync();
// Build the ViewModel from the expanded list of layer infos.
foreach (KmlNode node in dataset.RootNodes)
{
// LayerDisplayVM is a custom type made for this sample to serve as the ViewModel; it is not a part of ArcGIS Runtime.
LayerDisplayVM nodeVm = new LayerDisplayVM(node, null);
_viewModelList.Add(nodeVm);
LayerDisplayVM.BuildLayerInfoList(nodeVm, _viewModelList);
}
// Update the list of layers, using the root node from the list.
LayerTreeView.ItemsSource = _viewModelList;
}
public static void BuildLayerInfoList(LayerDisplayVM root, IList <LayerDisplayVM> result)
{
// Make the node visible.
root.Node.IsVisible = true;
// Initialize the child collection for the root.
root.Children = new List <LayerDisplayVM>();
// Recursively add children. KmlContainers and KmlNetworkLinks can both have children.
var containerNode = root.Node as KmlContainer;
var networkLinkNode = root.Node as KmlNetworkLink;
List <KmlNode> children = new List <KmlNode>();
if (containerNode != null)
{
children.AddRange(containerNode.ChildNodes);
}
if (networkLinkNode != null)
{
children.AddRange(networkLinkNode.ChildNodes);
}
foreach (KmlNode node in children)
{
// Create the view model for the sublayer.
LayerDisplayVM layerVm = new LayerDisplayVM(node, root);
// Add the sublayer to the root's sublayer collection.
root.Children.Add(layerVm);
// Recursively add children.
BuildLayerInfoList(layerVm, result);
}
}
public LayerDisplayVM(KmlNode info, LayerDisplayVM parent)
{
Node = info;
Parent = parent;
}