protected override void OnCreate(Android.OS.Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
AddBaseLayer(CartoBaseMapStyle.CartoBasemapStyleDefault);
TileDataSource source = CreateTileDataSource();
// Get decoder from current layer,
// so we wouldn't need a style asset to create a decoder from scratch
MBVectorTileDecoder decoder = (MBVectorTileDecoder)(MapView.Layers[0] as VectorTileLayer).TileDecoder;
// Remove default baselayer
MapView.Layers.Clear();
// Add our new layer
var layer = new VectorTileLayer(source, decoder);
MapView.Layers.Insert(0, layer);
// Zoom to the correct location
MapPos rome = BaseProjection.FromWgs84(new MapPos(12.4807, 41.8962));
MapView.SetFocusPos(rome, 0);
MapView.SetZoom(13, 0);
}
protected override void OnCreate(Android.OS.Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
AddOnlineBaseLayer(CartoBaseMapStyle.CartoBasemapStyleDefault);
// Get decoder from current layer,
// so we wouldn't need a style asset to create a decoder from scratch
MBVectorTileDecoder decoder = (MBVectorTileDecoder)(MapView.Layers[0] as VectorTileLayer).TileDecoder;
// Remove default baselayer
MapView.Layers.Clear();
// Do the actual copying and source creation on another thread so it wouldn't block the main thread
System.Threading.Tasks.Task.Run(delegate
{
TileDataSource source = CreateTileDataSource();
var layer = new VectorTileLayer(source, decoder);
RunOnUiThread(delegate
{
// However, actual layer insertion should be done on the main thread
MapView.Layers.Insert(0, layer);
});
});
// Zoom to the correct location
MapPos rome = BaseProjection.FromWgs84(new MapPos(12.4807, 41.8962));
MapView.SetFocusPos(rome, 0);
MapView.SetZoom(13, 0);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Add default base layer
AddOnlineBaseLayer(CartoBaseMapStyle.CartoBasemapStyleVoyager);
Projection projection = MapView.Options.BaseProjection;
TileDataSource source = FileUtils.CreateTileDataSource("rome_carto-streets", "mbtiles");
// Get decoder from current layer,
// so we wouldn't need a style asset to create a decoder from scratch
MBVectorTileDecoder decoder = (MBVectorTileDecoder)(MapView.Layers[0] as VectorTileLayer).TileDecoder;
// Remove default baselayer
MapView.Layers.Clear();
// Add our new layer
var layer = new VectorTileLayer(source, decoder);
MapView.Layers.Insert(0, layer);
// Zoom to the correct location
MapPos rome = projection.FromWgs84(new MapPos(12.4807, 41.8962));
MapView.SetFocusPos(rome, 0);
MapView.SetZoom(13, 0);
}
public MapContainer()
{
Map = new MapView();
var timer = new Stopwatch();
timer.Start();
// NOTE: Uncomment the timer creation and BeginInvokeOnMainThread to apply a workaround
//var startTimer = new System.Threading.Timer((_) =>
//{
// Device.BeginInvokeOnMainThread(() =>
// {
MBTilesTileDataSource testDataSource = new MBTilesTileDataSource(((App)App.Current).CityDataFile);
CompiledStyleSet styleSet = new CompiledStyleSet(new ZippedAssetPackage(AssetUtils.LoadAsset("nutibright-v3.zip")));
MBVectorTileDecoder decoder = new MBVectorTileDecoder(styleSet);
VectorTileLayer testLayer = new VectorTileLayer(testDataSource, decoder);
Map.Layers.Add(testLayer);
// });
//}, null, 10, System.Threading.Timeout.Infinite);
timer.Stop();
Debug.WriteLine($"Done map initialization in {timer.ElapsedMilliseconds}ms");
MapPos pos = Map.Options.BaseProjection.FromWgs84(new MapPos(App.CITY_POS_X, App.CITY_POS_Y));
Map.SetFocusPos(pos, 0);
Map.SetZoom(15, 0);
Content = Map.ToView();
}
protected bool LoadNutiteqMapCommon()
{
// Set base projection
EPSG3857 proj = new EPSG3857();
_mapViewer.Options.BaseProjection = proj; // note: EPSG3857 is the default, so this is actually not required
// Set initial location and other parameters, don't animate
_mapViewer.FocusPos = proj.FromWgs84(new MapPos(-0.8164, 51.2383)); // Berlin
_mapViewer.Zoom = 2;
_mapViewer.MapRotation = 0;
_mapViewer.Tilt = 90;
// Start package manager
var packageManager = new NutiteqPackageManager("nutiteq.mbstreets", _downloadPackagePath);
packageManager.Start();
// Import initial package
if (packageManager.GetLocalPackage("world0_4") == null)
{
packageManager.StartPackageImport("world0_4", 1, _importPackagePath);
}
// Set bounding box
String bbox = "bbox(-0.8164,51.2382,0.6406,51.7401)"; // London (about 30MB)
if (packageManager.GetLocalPackage(bbox) == null)
{
packageManager.StartPackageDownload(bbox);
}
// Now can add vector map as layer
// define styling for vector map
UnsignedCharVector styleBytes = AssetUtils.LoadBytes("osmbright.zip");
MBVectorTileDecoder vectorTileDecoder = null;
if (styleBytes != null)
{
// Create style set
MBVectorTileStyleSet vectorTileStyleSet = new MBVectorTileStyleSet(styleBytes);
vectorTileDecoder = new MBVectorTileDecoder(vectorTileStyleSet);
}
else
{
Log.Error("Failed to load style data");
}
// Create online base layer (no package download needed then). Use vector style from assets (osmbright.zip)
// comment in to use online map. Packagemanager stuff is not needed then
// VectorTileLayer baseLayer = new NutiteqOnlineVectorTileLayer("osmbright.zip");
var baseLayer = new VectorTileLayer(new PackageManagerTileDataSource(packageManager), vectorTileDecoder);
_mapViewer.Layers.Add(baseLayer);
return(true);
}
void UpdateLanguage(string code)
{
if (currentLayer == null)
{
return;
}
MBVectorTileDecoder decoder = (currentLayer as VectorTileLayer).TileDecoder as MBVectorTileDecoder;
decoder.SetStyleParameter("lang", code);
}
protected bool LoadNutiteqMapCommon()
{
// Set base projection
EPSG3857 proj = new EPSG3857();
_mapViewer.Options.BaseProjection = proj; // note: EPSG3857 is the default, so this is actually not required
// Set initial location and other parameters, don't animate
_mapViewer.FocusPos = proj.FromWgs84(new MapPos(-0.8164, 51.2383)); // Berlin
_mapViewer.Zoom = 2;
_mapViewer.MapRotation = 0;
_mapViewer.Tilt = 90;
// Start package manager
var packageManager = new NutiteqPackageManager("nutiteq.mbstreets", _downloadPackagePath);
packageManager.Start();
// Import initial package
if (packageManager.GetLocalPackage("world0_4") == null)
{
packageManager.StartPackageImport("world0_4", 1, _importPackagePath);
}
// Set bounding box
String bbox = "bbox(-0.8164,51.2382,0.6406,51.7401)"; // London (about 30MB)
if (packageManager.GetLocalPackage(bbox) == null)
{
packageManager.StartPackageDownload(bbox);
}
// Now can add vector map as layer
// define styling for vector map
UnsignedCharVector styleBytes = AssetUtils.LoadBytes("osmbright.zip");
MBVectorTileDecoder vectorTileDecoder = null;
if (styleBytes != null)
{
// Create style set
MBVectorTileStyleSet vectorTileStyleSet = new MBVectorTileStyleSet(styleBytes);
vectorTileDecoder = new MBVectorTileDecoder(vectorTileStyleSet);
}
else
{
Log.Error("Failed to load style data");
}
// Create online base layer (no package download needed then). Use vector style from assets (osmbright.zip)
// comment in to use online map. Packagemanager stuff is not needed then
// VectorTileLayer baseLayer = new NutiteqOnlineVectorTileLayer("osmbright.zip");
var baseLayer = new VectorTileLayer(new PackageManagerTileDataSource(packageManager), vectorTileDecoder);
_mapViewer.Layers.Add(baseLayer);
return true;
}
public static void InitializePackageManager(string packageFolder,
string importPackagePath, IMapView mapView, string downloadedPackage)
{
// Offline base layer
// Define listener, definition is in same class above
var packageManager = new CartoPackageManager("nutiteq.osm", packageFolder);
packageManager.PackageManagerListener = new PackageListener(packageManager, downloadedPackage);
// Download new package list only if it is older than 24h
// Note: this is only needed if pre-made packages are used
if (packageManager.ServerPackageListAge > 24 * 60 * 60)
{
packageManager.StartPackageListDownload();
}
// Start manager - mandatory
packageManager.Start();
// Import initial package
if (packageManager.GetLocalPackage("world0_4") == null)
{
packageManager.StartPackageImport("world0_4", 1, importPackagePath);
}
// Now can add vector map as layer
// Define styling for vector map
BinaryData styleBytes = AssetUtils.LoadAsset("nutibright-v2a.zip");
MBVectorTileDecoder vectorTileDecoder = null;
if (styleBytes != null)
{
// Create style set
var vectorTileStyleSet = new CompiledStyleSet(new ZippedAssetPackage(styleBytes));
vectorTileDecoder = new MBVectorTileDecoder(vectorTileStyleSet);
}
else
{
Log.Error("Failed to load style data");
}
// Create online base layer (no package download needed then). Use vector style from assets (osmbright.zip)
// comment in to use online map. Packagemanager stuff is not needed then
//VectorTileLayer baseLayer = new NutiteqOnlineVectorTileLayer("osmbright.zip");
var baseLayer = new VectorTileLayer(new PackageManagerTileDataSource(packageManager), vectorTileDecoder);
mapView.Layers.Add(baseLayer);
}
protected virtual void UpdateBaseLayer()
{
string styleAssetName = vectorStyleName + ".zip";
bool styleBuildings3D = false;
if (vectorStyleName.Equals("nutibright3d"))
{
styleAssetName = BaseStyleFile;
styleBuildings3D = true;
}
BinaryData styleBytes = AssetUtils.LoadAsset(styleAssetName);
if (styleBytes == null)
{
Toast.MakeText(this, "Map style file must be in project assets: " + vectorStyleName, ToastLength.Short).Show();
return;
}
// Create style set
CompiledStyleSet vectorTileStyleSet = new CompiledStyleSet(new ZippedAssetPackage(styleBytes));
vectorTileDecoder = new MBVectorTileDecoder(vectorTileStyleSet);
// Set language, language-specific texts from vector tiles will be used
vectorTileDecoder.SetStyleParameter("lang", vectorStyleLang);
// OSM Bright style set supports choosing between 2d/3d buildings. Set corresponding parameter.
if (styleAssetName.Equals(BaseStyleFile))
{
vectorTileDecoder.SetStyleParameter("buildings3d", styleBuildings3D ? "1" : "0");
vectorTileDecoder.SetStyleParameter("markers3d", styleBuildings3D ? "1" : "0");
vectorTileDecoder.SetStyleParameter("texts3d", styleBuildings3D ? "1" : "0");
}
// Create tile data source for vector tiles
if (vectorTileDataSource == null)
{
vectorTileDataSource = CreateTileDataSource();
}
// Remove old base layer, create new base layer
if (BaseLayer != null)
{
MapView.Layers.Remove(BaseLayer);
}
BaseLayer = new VectorTileLayer(vectorTileDataSource, vectorTileDecoder);
MapView.Layers.Insert(0, BaseLayer);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
BinaryData bytes = AssetUtils.LoadAsset("carto-fonts.zip");
ZippedAssetPackage package = new ZippedAssetPackage(bytes);
string css = JsonUtils.OfflinePackageCartoCSS;
var decoder = new MBVectorTileDecoder(new CartoCSSStyleSet(css, package));
TileDataSource source = FileUtils.CreateTileDataSource("offline-packages", "mbtiles");
var layer = new VectorTileLayer(source, decoder);
MapView.Layers.Add(layer);
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
BinaryData bytes = AssetUtils.LoadAsset("carto-fonts.zip");
ZippedAssetPackage package = new ZippedAssetPackage(bytes);
string css = JsonUtils.OfflinePackageCartoCSS;
var decoder = new MBVectorTileDecoder(new CartoCSSStyleSet(css, package));
TileDataSource source = FileUtils.CreateTileDataSource(this, "offline-packages.mbtiles");
var layer = new VectorTileLayer(source, decoder);
MapView.Layers.Add(layer);
}
void UpdateBaseLayer(Section section, string selection)
{
if (section.Type != SectionType.Language)
{
currentOSM = section.OSM.Value;
currentSelection = selection;
}
if (section.Type == SectionType.Vector)
{
if (currentOSM == "nutiteq.osm")
{
// Nutiteq styles are bundled with the SDK, we can initialize them via constuctor
if (currentSelection == "default")
{
currentLayer = new CartoOnlineVectorTileLayer(CartoBaseMapStyle.CartoBasemapStyleDefault);
}
else if (currentSelection == "gray")
{
currentLayer = new CartoOnlineVectorTileLayer(CartoBaseMapStyle.CartoBasemapStyleGray);
}
else
{
currentLayer = new CartoOnlineVectorTileLayer(CartoBaseMapStyle.CartoBasemapStyleDark);
}
}
else if (currentOSM == "mapzen.osm")
{
// Mapzen styles are all bundled in one .zip file.
// Selection contains both the style name and file name (cf. Sections.cs in Shared)
string fileName = currentSelection.Split(':')[0];
string styleName = currentSelection.Split(':')[1];
// Create a style set from the file and style
BinaryData styleAsset = AssetUtils.LoadAsset(fileName + ".zip");
var package = new ZippedAssetPackage(styleAsset);
CompiledStyleSet styleSet = new CompiledStyleSet(package, styleName);
// Create datasource and style decoder
var source = new CartoOnlineTileDataSource(currentOSM);
var decoder = new MBVectorTileDecoder(styleSet);
currentLayer = new VectorTileLayer(source, decoder);
}
ContentView.Menu.LanguageChoiceEnabled = true;
ResetLanguage();
}
else if (section.Type == SectionType.Raster)
{
// We know that the value of raster will be Positron or Darkmatter,
// as Nutiteq and Mapzen use vector tiles
// Additionally, raster tiles do not support language choice
string url = (currentSelection == "positron") ? Urls.Positron : Urls.DarkMatter;
TileDataSource source = new HTTPTileDataSource(1, 19, url);
currentLayer = new RasterTileLayer(source);
// Language choice not enabled in raster tiles
ContentView.Menu.LanguageChoiceEnabled = false;
}
else if (section.Type == SectionType.Language)
{
if (currentLayer is RasterTileLayer)
{
// Raster tile language chance is not supported
return;
}
UpdateLanguage(selection);
}
MapView.Layers.Clear();
MapView.Layers.Add(currentLayer);
ContentView.Menu.Hide();
currentListener = null;
currentListener = MapView.InitializeVectorTileListener(VectorLayer);
}
void UpdateBaseLayer(Section section, string selection)
{
if (section.Type != SectionType.Language)
{
currentOSM = section.OSM.Value;
currentSelection = selection;
}
if (section.Type == SectionType.Vector)
{
if (currentOSM == "nutiteq.osm")
{
// Nutiteq styles are bundled with the SDK, we can initialize them via constuctor
if (currentSelection == "default")
{
currentLayer = new CartoOnlineVectorTileLayer(CartoBaseMapStyle.CartoBasemapStyleDefault);
}
else if (currentSelection == "gray")
{
currentLayer = new CartoOnlineVectorTileLayer(CartoBaseMapStyle.CartoBasemapStyleGray);
}
else
{
currentLayer = new CartoOnlineVectorTileLayer(CartoBaseMapStyle.CartoBasemapStyleDark);
}
}
else if (currentOSM == "mapzen.osm")
{
// Mapzen styles are all bundled in one .zip file.
// Selection contains both the style name and file name (cf. Sections.cs in Shared)
string fileName = currentSelection.Split(':')[0];
string styleName = currentSelection.Split(':')[1];
// Create a style set from the file and style
BinaryData styleAsset = AssetUtils.LoadAsset("styles/" + fileName + ".zip");
var package = new ZippedAssetPackage(styleAsset);
CompiledStyleSet styleSet = new CompiledStyleSet(package, styleName);
// Create datasource and style decoder
var source = new CartoOnlineTileDataSource(currentOSM);
var decoder = new MBVectorTileDecoder(styleSet);
currentLayer = new VectorTileLayer(source, decoder);
}
Menu.LanguageChoiceEnabled = true;
ResetLanguage();
}
else if (section.Type == SectionType.Raster)
{
// We know that the value of raster will be Positron or Darkmatter,
// as Nutiteq and Mapzen use vector tiles
// Additionally, raster tiles do not support language choice
string url = (currentSelection == "positron") ? Urls.Positron : Urls.DarkMatter;
TileDataSource source = new HTTPTileDataSource(1, 19, url);
currentLayer = new RasterTileLayer(source);
// Language choice not enabled in raster tiles
Menu.LanguageChoiceEnabled = false;
}
else if (section.Type == SectionType.Language)
{
if (currentLayer is RasterTileLayer) {
// Raster tile language chance is not supported
return;
}
UpdateLanguage(selection);
}
MapView.Layers.Clear();
MapView.Layers.Add(currentLayer);
Menu.Hide();
currentListener = null;
currentListener = MapView.InitializeVectorTileListener(VectorLayer);
}
public static void Update(this MapView MapView, bool withListener, byte[] data, Action completed, Action <string> failed = null)
{
System.Threading.Tasks.Task.Run(delegate
{
var sourceId = Parser.GetSourceFromData(data);
BinaryData styleAsset = new BinaryData(data);
var package = new ZippedAssetPackage(styleAsset);
var styleSet = new CompiledStyleSet(package);
// UWP doesn't have a version released where simply changing the style set is supported,
// need to clear layers and recreate the entire thing
#if __UWP__
MapView.Layers.Clear();
var source = new CartoOnlineTileDataSource(OSM);
var decoder = new MBVectorTileDecoder(styleSet);
var layer = new VectorTileLayer(source, decoder);
Device.BeginInvokeOnMainThread(delegate
{
MapView.Layers.Add(layer);
if (completed != null)
{
completed();
}
});
#else
if (MapView.Layers.Count == 0)
{
if (sourceId == null)
{
sourceId = DefaultSourceId;
}
var source = new CartoOnlineTileDataSource(sourceId);
MBVectorTileDecoder decoder = null;
try
{
decoder = new MBVectorTileDecoder(styleSet);
}
catch (System.ApplicationException e)
{
if (failed != null)
{
failed(e.Message);
return;
}
}
var layer = new VectorTileLayer(source, decoder);
if (withListener)
{
var popupSource = new LocalVectorDataSource(MapView.Options.BaseProjection);
var popupLayer = new VectorLayer(popupSource);
MapView.Layers.Add(popupLayer);
layer.VectorTileEventListener = new VectorEventListener(popupSource);
}
Device.BeginInvokeOnMainThread(delegate
{
MapView.Layers.Add(layer);
if (completed != null)
{
completed();
}
});
}
else
{
var decoder = (MBVectorTileDecoder)(MapView.Layers[MapView.Layers.Count - 1] as VectorTileLayer).TileDecoder;
Device.BeginInvokeOnMainThread(delegate
{
decoder.CompiledStyle = styleSet;
if (completed != null)
{
completed();
}
});
}
#endif
});
}
