public override void ViewDidLoad()
{
base.ViewDidLoad();
AddBaseLayer(CartoBaseMapStyle.CartoBasemapStyleGray);
string encoded = JsonUtils.GetTorqueQuery();
string url = "http://viz2.cartodb.com/api/v2/sql?q=" + encoded + "&cache_policy=persist";
// Define datasource with the query
HTTPTileDataSource source = new HTTPTileDataSource(0, 14, url);
// Create persistent cache to make it faster
string cacheFile = Utils.GetDocumentDirectory() + "/torque_tile_cache.db";
TileDataSource cacheSource = new PersistentCacheTileDataSource(source, cacheFile);
// Create CartoCSS style from Torque points
CartoCSSStyleSet styleSheet = new CartoCSSStyleSet(JsonUtils.TorqueCartoCSS);
// Create tile decoder and Torque layer
decoder = new TorqueTileDecoder(styleSheet);
tileLayer = new TorqueTileLayer(cacheSource, decoder);
MapView.Layers.Add(tileLayer);
MapView.SetZoom(1, 0);
}
public MergedRasterTileDataSource(HTTPTileDataSource source1, HTTPTileDataSource source2) : base(source1.MinZoom, source1.MaxZoom)
{
this.source1 = source1;
this.source2 = source2;
paint = new Paint();
}
protected override void OnCreate(Android.OS.Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
AddBaseLayer(CartoBaseMapStyle.CartoBasemapStyleGray);
string encoded = JsonUtils.GetTorqueQuery();
// Define datasource with the query
string url = "http://viz2.cartodb.com/api/v2/sql?q=" + encoded + "&cache_policy=persist";
HTTPTileDataSource source = new HTTPTileDataSource(0, 14, url);
// Create persistent cache to make it faster
string cacheFile = GetExternalFilesDir(null) + "torque_tile_cache.db";
TileDataSource cacheSource = new PersistentCacheTileDataSource(source, cacheFile);
// Create CartoCSS style from Torque points
CartoCSSStyleSet styleSheet = new CartoCSSStyleSet(JsonUtils.TorqueCartoCSS);
// Create tile decoder and Torque layer
decoder = new TorqueTileDecoder(styleSheet);
tileLayer = new TorqueTileLayer(cacheSource, decoder);
MapView.Layers.Add(tileLayer);
MapView.SetZoom(1, 0);
}
Carto.Graphics.Bitmap CreateBitmap(HTTPTileDataSource source, MapTile tile)
{
var data = source.LoadTile(tile);
if (data == null)
{
return(null);
}
return(Carto.Graphics.Bitmap.CreateFromCompressed(data.Data));
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Initialize hillshading raster data source, better visible in mountain ranges
HTTPTileDataSource source1 = new HTTPTileDataSource(0, 24, TiledRasterUrl);
HTTPTileDataSource source2 = new HTTPTileDataSource(0, 24, HillsideRasterUrl);
MergedRasterTileDataSource mergedSource = new MergedRasterTileDataSource(source1, source2);
var layer = new RasterTileLayer(mergedSource);
MapView.Layers.Add(layer);
// Animate map to a nice place
MapView.SetFocusPos(BaseProjection.FromWgs84(new MapPos(-122.4323, 37.7582)), 1);
MapView.SetZoom(13, 1);
}
protected override void OnCreate(Android.OS.Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Initialize hillshading raster data source, better visible in mountain ranges
HTTPTileDataSource source1 = new HTTPTileDataSource(0, 24, TiledRasterUrl);
HTTPTileDataSource source2 = new HTTPTileDataSource(0, 24, HillsideRasterUrl);
MergedRasterTileDataSource mergedSource = new MergedRasterTileDataSource(source1, source2);
var layer = new RasterTileLayer(mergedSource);
MapView.Layers.Add(layer);
// Animate map to a nice place
MapView.SetFocusPos(BaseProjection.FromWgs84(new MapPos(-122.4323, 37.7582)), 1);
MapView.SetZoom(13, 1);
}
protected override void UpdateBaseLayer()
{
MapView.Layers.Clear();
if (vectorStyleTileType == "raster")
{
Menu.Disable("OSM");
string url = (vectorStyleName == "positron") ? Urls.Positron : Urls.DarkMatter;
TileDataSource source = new HTTPTileDataSource(1, 19, url);
var layer = new RasterTileLayer(source);
MapView.Layers.Add(layer);
}
else
{
Menu.Enable("OSM");
string selection = Menu.GetSelectedValueOf("OSM");
CartoOnlineVectorTileLayer layer = null;
if (selection == "nutiteq.osm")
{
if (vectorStyleName.Split(':')[1] == "default")
{
layer = new CartoOnlineVectorTileLayer(CartoBaseMapStyle.CartoBasemapStyleDefault);
}
else
{
layer = new CartoOnlineVectorTileLayer(CartoBaseMapStyle.CartoBasemapStyleDark);
}
}
else
{
var styleAsset = AssetUtils.LoadAsset(vectorStyleName + ".zip");
layer = new CartoOnlineVectorTileLayer(vectorStyleOSM, new ZippedAssetPackage(styleAsset));
}
MapView.Layers.Add(layer);
}
}
protected override void OnCreate(Android.OS.Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Initialize hillshading raster data source, better visible in mountain ranges
HTTPTileDataSource hillsRasterTileDataSource = new HTTPTileDataSource(0, 24, HillsideRasterUrl);
// Add persistent caching datasource, tiles will be stored locally on persistent storage
PersistentCacheTileDataSource cachedDataSource =
new PersistentCacheTileDataSource(hillsRasterTileDataSource, GetExternalFilesDir(null) + "/mapcache_hills.db");
// Initialize a raster layer with the previous data source
RasterTileLayer hillshadeLayer = new RasterTileLayer(cachedDataSource);
// Add the previous raster layer to the map
MapView.Layers.Add(hillshadeLayer);
// Animate map to a nice place
MapView.SetFocusPos(BaseProjection.FromWgs84(new MapPos(-122.4323, 37.7582)), 1);
MapView.SetZoom(13, 1);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Initialize hillshading raster data source, better visible in mountain ranges
HTTPTileDataSource tileSource = new HTTPTileDataSource(0, 24, HillsideRasterUrl);
// Add persistent caching datasource, tiles will be stored locally on persistent storage
PersistentCacheTileDataSource cachedSource =
new PersistentCacheTileDataSource(tileSource, Utils.GetDocumentDirectory() + "mapcache_hills.db");
// Initialize a raster layer with the previous data source
RasterTileLayer hillshadeLayer = new RasterTileLayer(cachedSource);
// Add the previous raster layer to the map
MapView.Layers.Add(hillshadeLayer);
// Animate map to a nice place
MapView.SetFocusPos(BaseProjection.FromWgs84(new MapPos(-122.4323, 37.7582)), 1);
MapView.SetZoom(13, 1);
}
Carto.Graphics.Bitmap CreateBitmap(HTTPTileDataSource source, MapTile tile)
{
return(Carto.Graphics.Bitmap.CreateFromCompressed(source.LoadTile(tile).Data));
}
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);
}
