/// <summary>
/// Returns a layer for the basemap according to that chosen by the user and saved in settings. If offline and an associated mbtiles file is present, the mbtiles layer is returned.
/// </summary>
/// <returns></returns>
public static MapLayer GetBaseMap()
{
var dirPath = Path.Combine(App.TileLocation, "mbtiles");
var BL = Preferences.Get("BaseLayer", "swisstopo_pixelkarte");
bool noInternet = MapModel.IsAppDisconnected();
var wmtsLayer = WMSLayer.CreatePixelkarteWMTSTileLayer();
if (BL == "osm")
{
wmtsLayer = OpenStreetMap.CreateTileLayer();
}
else if (BL == "swissimage")
{
wmtsLayer = WMSLayer.CreateSwissimageWMTSTileLayer();
}
var baseLayer = new MapLayer(true, 0, wmtsLayer);
if (noInternet)
{
var filename = "swisstopo_pixelkarte.mbtiles";
if (BL == "osm")
{
filename = "osm.mbtiles";
}
else if (BL == "swissimage")
{
filename = "swissimage.mbtiles";
}
foreach (var file in System.IO.Directory.GetFiles(dirPath))
{
if (file.EndsWith(filename))
{
var offlineLayer = WMSLayer.CreateOfflineLayer(file) as TileLayer;
baseLayer = new MapLayer(true, 0, offlineLayer);
return(baseLayer);
}
}
}
return(baseLayer);
}
/// <summary>
/// Creates a dictionary of the offline layers available at the file path
/// </summary>
/// <param name="dirPath"></param>
/// <returns>Dictionary of offline layers</returns>
public static Dictionary <string, ILayer> GetOfflineLayers(string dirPath)
{
//Create a dictionary of all the offline files available
var offlineLayers = new Dictionary <string, ILayer>();
foreach (var file in System.IO.Directory.GetFiles(dirPath))
{
if (file.EndsWith(".mbtiles"))
{
try
{
var offlineLayer = WMSLayer.CreateOfflineLayer(file);
if (!offlineLayers.Keys.Contains(offlineLayer.Name))
{
offlineLayers.Add(offlineLayer.Name, offlineLayer);
}
}
catch
{
}
}
}
return(offlineLayers);
}
//Mapserver layers
public ObservableCollection <MapLayer> MakeArrayOfLayers()
{
int i = 0;
//Add mbtiles layers
var dirPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "mbtiles");
//Create directory if it doesn't exist
if (!File.Exists(dirPath))
{
Directory.CreateDirectory(dirPath);
}
//Create a dictionary of all the offline files available
var offlineLayers = new Dictionary <string, ILayer>();
foreach (var file in System.IO.Directory.GetFiles(dirPath))
{
if (file.EndsWith(".mbtiles"))
{
var offlineLayer = WMSLayer.CreateOfflineLayer(file);
offlineLayers.Add(offlineLayer.Name, offlineLayer);
}
}
//Get the online layers
var layers = GetLayersForMap(App.CurrentProjectId);
//Create an array for adding the layers into in an ordered fashion
var mapLayersTemp = new MapLayer[layers.Count];
//Add online wms layers
var layerStack = layers.OrderBy(o => o.order).ToList();
foreach (var layer in layerStack)
{
//Now add the layers in their correct order
try
{
var layerNo = Math.Max(layers.Count - layer.order, 0);
var layerWms = WMSLayer.CreateWMSLayer(layer.url, layer.wmsLayer, "EPSG:3857", layer.title);
layerWms.Opacity = layer.opacity;
layerWms.Enabled = layer.visible;
if (Connectivity.NetworkAccess != NetworkAccess.Internet && offlineLayers.Keys.Contains(layerWms.Name))
{
//If no internet, check for saved tiles
ILayer offlineLayer;
offlineLayers.TryGetValue(layerWms.Name, out offlineLayer);
if (offlineLayer != null)
{
var WmsLayer = new MapLayer(true, 0, offlineLayer);
WmsLayer.Opacity = layerWms.Opacity;
WmsLayer.Enabled = layerWms.Enabled;
WmsLayer.LayerZ = layer.order;
WmsLayer.Name = layer.title;
mapLayersTemp.SetValue(WmsLayer, layerNo);
i++;
}
}
else
{
//If internet, read directly from WMS
if (layerWms != null)
{
var WmsLayer = new MapLayer(true, 0, layerWms);
WmsLayer.Opacity = layerWms.Opacity;
WmsLayer.Enabled = layerWms.Enabled;
WmsLayer.LayerZ = layer.order;
WmsLayer.Name = layer.title;
mapLayersTemp.SetValue(WmsLayer, layerNo);
i++;
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
var mapLayersTempList = mapLayersTemp.ToList().GetRange(0, i);
return(new ObservableCollection <MapLayer>(mapLayersTempList as List <MapLayer>));
}