static void Main()
{
// Dear BruTile maintainer,
// If the code in this file does not compile and needs changes you
// also need to update the 'getting started' sample in the wiki.
// 1) Create a tile source
// This is an example that creates the OpenStreetMap tile source:
var tileSource = new HttpTileSource(new GlobalSphericalMercator(0, 18),
"http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
new[] { "a", "b", "c" }, "OSM");
// 2) Calculate which tiles you need
// the extent of the visible map changes but lets start with the whole world
var extent = new Extent(-20037508, -20037508, 20037508, 20037508);
var screenWidthInPixels = 400; // The width of the map on screen in pixels
var resolution = extent.Width / screenWidthInPixels;
var tileInfos = tileSource.Schema.GetTileInfos(extent, resolution);
// 3) Fetch the tiles from the service
Console.WriteLine("Show tile info");
foreach (var tileInfo in tileInfos)
{
var tile = tileSource.GetTile(tileInfo);
Console.WriteLine(
$"tile col: {tileInfo.Index.Col}, " +
$"tile row: {tileInfo.Index.Row}, " +
$"tile level: {tileInfo.Index.Level} , " +
$"tile size {tile.Length}");
}
// 4) Try some of the known tile sources
// You can easily create an ITileSource for a number of predefined tile servers
// with single line statements like:
var tileSource1 = KnownTileSources.Create(); // The default is OpenStreetMap
var tileSource2 = KnownTileSources.Create(KnownTileSource.BingAerial);
var tileSource3 = KnownTileSources.Create(KnownTileSource.BingHybrid);
var tileSource4 = KnownTileSources.Create(KnownTileSource.StamenTonerLite);
var tileSource5 = KnownTileSources.Create(KnownTileSource.EsriWorldShadedRelief);
// 6) Use MBTiles, the sqlite format for tile data, to work with tiles stored on your device.
var mbtilesTilesource = new MbTilesTileSource(new SQLiteConnectionString("Resources/world.mbtiles", false));
var mbTilesTile = mbtilesTilesource.GetTile(new TileInfo {
Index = new TileIndex(0, 0, 0)
});
Console.WriteLine();
Console.WriteLine("MBTiles");
Console.WriteLine($"This is a byte array of an image file loaded from MBTiles with size: {mbTilesTile.Length}");
}
private void DownloadMap()
{
if (selectedSource.PersistentCache == null || !(selectedSource.PersistentCache is ReadOnlyFileCache))
{
return;
}
var cache = (ReadOnlyFileCache)selectedSource.PersistentCache;
var mapExtent = mapView.Viewport.Extent.ToExtent();
var fetchStrategy = new CustomFetchStrategy();
var tileInfos = fetchStrategy.Get(
selectedSource.Schema,
mapExtent,
selectedSource.Schema.Resolutions.Count - 1);
cache.CacheToDisk = true;
using (var loading = UserDialogs.Instance.Loading())
{
int tileCounter = 0;
foreach (var tileInfo in tileInfos)
{
tileCounter++;
int progress = Convert.ToInt32(tileCounter / (float)tileInfos.Count * 100.0);
var tileSize = 0;
if (!cache.Exists(tileInfo.Index))
{
var tile = selectedSource.GetTile(tileInfo);
tileSize = tile.Length;
}
var progressString = $"{progress}% ({tileCounter}/{tileInfos.Count})";
var progressMessage = $"Downloading\n{progressString}";
Console.WriteLine(
$"{progressString} - " +
$"tile col: {tileInfo.Index.Col}, " +
$"tile row: {tileInfo.Index.Row}, " +
$"tile level: {tileInfo.Index.Level}, " +
$"tile size {tileSize}");
loading.Title = progressMessage;
}
}
cache.CacheToDisk = false;
}
static void Main(string[] args)
{
Mapsui.Logging.Logger.LogDelegate += (level, message, ex) =>
{
Console.WriteLine($"[{level}]: {message}");
};
using var httpClient = new HttpClient();
var fileCache = new FileCache(Path.Combine(Path.GetTempPath(), "tilecache"), "png");
HttpTileSource tileSource = KartverketSources.Create(
KartverketTileSource.SjøkartRaster,
FetchFactory.CreateRetryFetcher(httpClient),
fileCache);
var southWest = SphericalMercator.FromLonLat(22.7962, 70.0910);
var northEast = SphericalMercator.FromLonLat(22.8618, 70.1205);
var extent = new Extent(southWest.X, southWest.Y, northEast.X, northEast.Y);
Console.WriteLine($"Getting tiles for extent {extent}");
var fetchStrategy = new DataFetchStrategy();
var tileInfos = fetchStrategy.Get(tileSource.Schema, extent, 15);
//var tileInfos = tileSource.Schema.GetTileInfos(extent, 7);
Console.WriteLine($"Show tile info ({tileInfos.Count} tiles)");
int tileCounter = 0;
foreach (var tileInfo in tileInfos)
{
tileCounter++;
double progress = Math.Round(tileCounter / (float)tileInfos.Count * 100.0f, 2);
var tile = tileSource.GetTile(tileInfo);
Console.WriteLine(
$"{progress}% ({tileCounter}/{tileInfos.Count}) - " +
$"tile col: {tileInfo.Index.Col}, " +
$"tile row: {tileInfo.Index.Row}, " +
$"tile level: {tileInfo.Index.Level}, " +
$"tile size {tile.Length}");
}
}
static void Main()
{
// 1) Create a tile source
//This is an example of the open street map tile source:
var tileSource = new HttpTileSource(new GlobalSphericalMercator(0, 18),
"http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
new[] { "a", "b", "c" }, "OSM");
// 2) Calculate which tiles you need
// the extent of the visible map changes but lets start with the whole world
var extent = new Extent(-20037508, -20037508, 20037508, 20037508);
const int screenWidthInPixels = 400; // The width of the map on screen in pixels
var unitsPerPixel = extent.Width / screenWidthInPixels;
var tileInfos = tileSource.Schema.GetTileInfos(extent, unitsPerPixel);
// 3) Fetch the tiles from the service
var tiles = new Dictionary <TileInfo, byte[]>();
foreach (var tileInfo in tileInfos)
{
tiles[tileInfo] = tileSource.GetTile(tileInfo);
}
// Show that something actually happended:
foreach (var tile in tiles)
{
System.Console.WriteLine("Column: {0}, Row: {1}, level: {2}, bytes: {3}",
tile.Key.Index.Col, tile.Key.Index.Row, tile.Key.Index.Level, tile.Value.Length);
}
System.Console.ReadKey();
}
public byte[] GetTile(TileInfo tileInfo) => _WrappedSource.GetTile(tileInfo);
