public void TileFetcherShouldBehaveProperlyWithNoisyResponses()
{
// Arrange
var schema = new GlobalSphericalMercator();
var tileSource = new TileSource(new SometimesFailingTileProvider(), schema);
var memoryCache = new MemoryCache <Feature>(14, 17);
var tileFetcher = new TileFetcher(tileSource, memoryCache);
var random = new Random(31747074);
var tiles = new List <Feature>();
// Act
for (int i = 0; i < 100; i++)
{
var randomLevel = "5";
var randomCol = random.Next(schema.GetMatrixWidth(randomLevel));
var randomRow = random.Next(schema.GetMatrixHeight(randomLevel));
var tileRange = new TileRange(randomCol - 2, randomRow - 2, 5, 5);
var unitsPerPixel = schema.Resolutions[randomLevel].UnitsPerPixel;
var extent = TileTransform.TileToWorld(tileRange, randomLevel, schema);
tileFetcher.ViewChanged(TileTransform.TileToWorld(tileRange, randomLevel, schema).ToBoundingBox(), unitsPerPixel);
var tileInfos = schema.GetTileInfos(extent, randomLevel);
foreach (var tileInfo in tileInfos)
{
tiles.Add(memoryCache.Find(tileInfo.Index));
}
}
// Assert
Assert.True(tiles.Count > 0);
Assert.True(memoryCache.TileCount == 0);
}
public static ITileSource CreateTileSource(string urlString, string layerName, string CRS)
{
var schema = new GlobalSphericalMercator("png", YAxis.OSM, 0, 21, null);
var layers = new List <string>();
layers.Add(layerName);
var styles = new List <string>();
if (!urlString.ToLower().Contains("&version="))
{
urlString = urlString + "&version=1.3.0";
}
if (!urlString.ToLower().Contains("&crs="))
{
urlString = urlString + "&CRS=" + CRS;
}
if (!urlString.ToLower().Contains("&format="))
{
urlString = urlString + "&format=png";
}
if (!urlString.ToLower().Contains("&transparent="))
{
urlString = urlString + "&transparent=true";
}
var request = new WmscRequest(new Uri(urlString), schema, layers, new string[0].ToList());
var provider = new HttpTileProvider(request);
return(new TileSource(provider, schema));
}
public void TileFetcherShouldRequestAllTilesJustOnes()
{
// Arrange
var tileProvider = new CountingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
using var cache = new MemoryCache <IFeature?>();
var fetchDispatcher = new TileFetchDispatcher(cache, tileSource.Schema, async tileInfo => await TileToFeatureAsync(tileSource, tileInfo));
var tileMachine = new FetchMachine(fetchDispatcher);
var level = 3;
var expectedTiles = 64;
var fetchInfo = new FetchInfo(tileSchema.Extent.ToMRect(), tileSchema.Resolutions[level].UnitsPerPixel);
// Act
// Get all tiles of level 3
fetchDispatcher.SetViewport(fetchInfo);
tileMachine.Start();
// Assert
while (fetchDispatcher.Busy)
{
Thread.Sleep(1);
}
Assert.AreEqual(expectedTiles, tileProvider.CountByTile.Keys.Count);
Assert.AreEqual(expectedTiles, tileProvider.CountByTile.Values.Sum());
Assert.AreEqual(expectedTiles, tileProvider.TotalCount);
}
public void RepeatedRestartsShouldNotCauseInfiniteLoop()
{
// Arrange
var tileProvider = new CountingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
using var cache = new MemoryCache <IFeature?>();
var fetchDispatcher = new TileFetchDispatcher(cache, tileSource.Schema, async tileInfo => await TileToFeatureAsync(tileSource, tileInfo));
var tileMachine = new FetchMachine(fetchDispatcher);
var numberOfWorkers = 8;
var numberOfRestarts = 3;
var fetchInfo = new FetchInfo(tileSchema.Extent.ToMRect(), tileSchema.Resolutions[3].UnitsPerPixel);
// Act
for (var i = 0; i < numberOfRestarts; i++)
{
fetchDispatcher.SetViewport(fetchInfo);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
Thread.Sleep(1);
}
}
// Assert
Assert.Greater(numberOfWorkers * numberOfRestarts, FetchWorker.RestartCounter);
}
[Test] // handing in build server but not on client
public void TileFetcherShouldBehaveProperlyWithTileProviderReturningNull()
{
// Arrange
var schema = new GlobalSphericalMercator();
var tileSource = new TileSource(new NullTileProvider(), schema);
var memoryCache = new MemoryCache <Feature>();
var tileFetcher = new TileFetcher(tileSource, memoryCache);
// Act
Task.Run(() =>
{
Task.Delay(5000);
if (tileFetcher.Busy)
{
Assert.Fail("The fetcher hangs");
}
});
tileFetcher.ViewChanged(schema.Extent.ToBoundingBox(), schema.Resolutions["2"].UnitsPerPixel);
while (tileFetcher.Busy)
{
}
// Assert
Assert.True(memoryCache.TileCount == 0);
}
public ITileSource CreateTileSource()
{
var request = (HttpWebRequest)WebRequest.Create(_url);
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14";
var response = (HttpWebResponse)request.GetResponse();
var stream = response.GetResponseStream();
var tileSource = TileMapParser.CreateTileSource(stream);
var s = new GlobalSphericalMercator();
// now remove all resolutions that are not in the Tilesource.
// For example Strava level 18 we must not draw.
var l = new List <String>();
foreach (var res in s.Resolutions)
{
var r = tileSource.Schema.Resolutions.ContainsKey(res.Key);
if (!r)
{
l.Add(res.Key);
}
}
foreach (var p in l)
{
s.Resolutions.Remove(p);
}
return(new TileSource(tileSource.Provider, s));
}
public void TestTimer()
{
// arrange
DefaultRendererFactory.Create = () => new MapRenderer();
using var memoryLayer = CreatePointLayer();
using var layer = new RasterizingLayer(memoryLayer);
var schema = new GlobalSphericalMercator();
var box = schema.Extent.ToMRect();
var resolution = schema.Resolutions.First().Value.UnitsPerPixel;
using var waitHandle = new AutoResetEvent(false);
Assert.AreEqual(0, layer.GetFeatures(box, resolution).Count());
layer.DataChanged += (_, _) => {
// assert
waitHandle.Set();
};
var fetchInfo = new FetchInfo(box, resolution, null, ChangeType.Discrete);
// act
layer.RefreshData(fetchInfo);
// assert
waitHandle.WaitOne();
Assert.AreEqual(layer.GetFeatures(box, resolution).Count(), 1);
}
public void TileFetcherWithFailingFetchesShouldTryAgain()
{
// Arrange
var tileProvider = new FailingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
var cache = new MemoryCache <Feature>();
var fetchDispatcher = new TileFetchDispatcher(cache, tileSource.Schema, (tileInfo) => TileToFeature(tileSource, tileInfo));
var tileMachine = new FetchMachine(fetchDispatcher);
var level = "3";
var tilesInLevel = 64;
// Act
fetchDispatcher.SetViewport(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[level].UnitsPerPixel);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
}
// do it again
fetchDispatcher.SetViewport(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[level].UnitsPerPixel);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
}
// Assert
Assert.AreEqual(tilesInLevel * 2, tileProvider.TotalCount); // tried all tiles twice
}
public QuantizedMeshTileSource(string url, string ext = "terrain")
{
var request = new TmsRequest(new Uri(url), ext);
Provider = new WebTileProvider(request, fetchTile: FetchTile);
Schema = new GlobalSphericalMercator();
}
public void TileRequestThatReturnsNullShouldNotBeRequestedAgain()
{
// Arrange
var tileProvider = new NullTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
var cache = new MemoryCache <Feature>();
var fetchDispatcher = new TileFetchDispatcher(cache, tileSource.Schema, (tileInfo) => TileToFeature(tileSource, tileInfo));
var tileMachine = new FetchMachine(fetchDispatcher);
var level = "3";
var tilesInLevel = 64;
// Act
fetchDispatcher.SetViewport(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[level].UnitsPerPixel);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
}
// do it again
fetchDispatcher.SetViewport(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[level].UnitsPerPixel);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
Thread.Sleep(1);
}
// Assert
Assert.AreEqual(tilesInLevel, tileProvider.TotalCount);
}
public void TestTimer()
{
// arrange
var layer = new RasterizingLayer(CreatePointLayer());
var schema = new GlobalSphericalMercator();
var box = schema.Extent.ToBoundingBox();
var resolution = schema.Resolutions.First().Value.UnitsPerPixel;
var waitHandle = new AutoResetEvent(false);
DefaultRendererFactory.Create = () => new MapRenderer(); // Using xaml renderer here to test rasterizer. Suboptimal.
Assert.AreEqual(0, layer.GetFeaturesInView(box, resolution).Count());
layer.DataChanged += (sender, args) =>
{
// assert
waitHandle.Set();
};
// act
layer.RefreshData(box, resolution, ChangeType.Discrete);
// assert
waitHandle.WaitOne();
Assert.AreEqual(layer.GetFeaturesInView(box, resolution).Count(), 1);
}
public MapBoxVectorTileSource(string url, string ext = "pbf")
{
var request = new TmsRequest(new Uri(url), ext);
Provider = new WebTileProvider(request, fetchTile: FetchTile);
Schema = new GlobalSphericalMercator();
}
public void TileFetcherWithFailingFetchesShouldTryAgain()
{
// Arrange
var tileProvider = new FailingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
using var cache = new MemoryCache <IFeature?>();
var fetchDispatcher = new TileFetchDispatcher(cache, tileSource.Schema, async tileInfo => await TileToFeatureAsync(tileSource, tileInfo));
var tileMachine = new FetchMachine(fetchDispatcher);
var level = 3;
var tilesInLevel = 64;
var fetchInfo = new FetchInfo(tileSchema.Extent.ToMRect(), tileSchema.Resolutions[level].UnitsPerPixel);
// Act
fetchDispatcher.SetViewport(fetchInfo);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
Thread.Sleep(1);
}
// Act again
fetchDispatcher.SetViewport(fetchInfo);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
Thread.Sleep(1);
}
// Assert
Assert.AreEqual(tilesInLevel * 2, tileProvider.TotalCount); // tried all tiles twice
}
public void RepeatedRestartsShouldNotCauseInfiniteLoop()
{
// Arrange
var tileProvider = new CountingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
var cache = new MemoryCache <Feature>();
var fetchDispatcher = new TileFetchDispatcher(cache, tileSource.Schema, (tileInfo) => TileToFeature(tileSource, tileInfo));
var tileMachine = new FetchMachine(fetchDispatcher);
var numberOfWorkers = 8;
var numberOfRestarts = 3;
// Act
for (int i = 0; i < numberOfRestarts; i++)
{
fetchDispatcher.SetViewport(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions["3"].UnitsPerPixel);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
}
}
// Assert
Assert.Greater(numberOfWorkers * numberOfRestarts, FetchWorker.RestartCounter);
}
public static ITileSchema GetTileSchema()
{
var schema = new GlobalSphericalMercator(YAxis.OSM);
schema.Resolutions.Clear();
schema.Resolutions["0"] = new Resolution("0", 156543.033900000);
schema.Resolutions["1"] = new Resolution("1", 78271.51695);
schema.Resolutions["2"] = new Resolution("2", 39135.758475);
schema.Resolutions["3"] = new Resolution("3", 19567.8792375);
schema.Resolutions["4"] = new Resolution("4", 9783.93961875);
schema.Resolutions["5"] = new Resolution("5", 4891.969809375);
schema.Resolutions["6"] = new Resolution("6", 2445.9849046875);
schema.Resolutions["7"] = new Resolution("7", 1222.99245234375);
schema.Resolutions["8"] = new Resolution("8", 611.496226171875);
schema.Resolutions["9"] = new Resolution("9", 305.748113085938);
schema.Resolutions["10"] = new Resolution("10", 152.874056542969);
schema.Resolutions["11"] = new Resolution("11", 76.4370282714844);
schema.Resolutions["12"] = new Resolution("12", 38.2185141357422);
schema.Resolutions["13"] = new Resolution("13", 19.1092570678711);
schema.Resolutions["14"] = new Resolution("14", 9.55462853393555);
schema.Resolutions["15"] = new Resolution("15", 4.77731426696777);
schema.Resolutions["16"] = new Resolution("16", 2.38865713348389);
schema.Resolutions["17"] = new Resolution("17", 1.19432856674194);
return(schema);
}
public void TileFetcherShouldRequestAllTilesJustOnes()
{
// Arrange
var tileProvider = new CountingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
var tileFetcher = new TileFetcher(tileSource, new MemoryCache <Feature>(), 2, 8, new MinimalFetchStrategy());
var level = "4";
var expextedTiles = 256;
// Act
// Get all tiles of level 3
tileFetcher.ViewChanged(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[level].UnitsPerPixel);
// Assert
while (tileFetcher.Busy)
{
}
Assert.AreEqual(expextedTiles, tileProvider.CountByTile.Keys.Count);
//!!! This is an actual bug: Assert.AreEqual(expextedTiles, tileProvider.CountByTile.Values.Sum());
//!!! This is an actual bug: Assert.AreEqual(expextedTiles, tileProvider.TotalCount);
Assert.Pass("The fetcher did not go into an infinite loop");
}
public void TileFetcherWithReturningNull()
{
// Arrange
var tileProvider = new NullTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
var tileFetcher = new TileFetcher(tileSource, new MemoryCache <Feature>());
// Act
for (int i = 0; i < 300; i++)
{
for (int j = 0; j < 5; j++)
{
tileFetcher.ViewChanged(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[j.ToString()].UnitsPerPixel);
System.Threading.Thread.Sleep(10);
}
}
// Assert
while (tileFetcher.Busy)
{
}
;
Assert.Pass("The fetcher did not go into an infinite loop");
}
public void TileFetcherShouldRequestAllTilesJustOnes()
{
// Arrange
var tileProvider = new CountingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
var cache = new MemoryCache <Feature>();
var fetchDispatcher = new TileFetchDispatcher(cache, tileSource.Schema, (tileInfo) => TileToFeature(tileSource, tileInfo));
var tileMachine = new FetchMachine(fetchDispatcher);
var level = "4";
var expextedTiles = 256;
// Act
// Get all tiles of level 3
fetchDispatcher.SetViewport(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[level].UnitsPerPixel);
tileMachine.Start();
// Assert
while (fetchDispatcher.Busy)
{
}
Assert.AreEqual(expextedTiles, tileProvider.CountByTile.Keys.Count);
Assert.AreEqual(expextedTiles, tileProvider.CountByTile.Values.Sum());
Assert.AreEqual(expextedTiles, tileProvider.TotalCount);
}
public ITileSource CreateTileSource()
{
var tileSchema = new GlobalSphericalMercator();
var tileLayerRequest = new BasicRequest(_url, Domains);
var tileProvider = new WebTileProvider(tileLayerRequest);
var tileSource = new TileSource(tileProvider, tileSchema);
return(tileSource);
}
public static ITileSchema GetTileSchema()
{
var schema = new GlobalSphericalMercator(YAxis.TMS);
schema.Resolutions.Clear();
schema.Resolutions["0"] = new Resolution("0", 156543.033900000);
schema.Resolutions["1"] = new Resolution("1", 78271.516950000);
return(schema);
}
public void TestGlobalSphericalMercatorSchema()
{
string message;
var s1 = new GlobalSphericalMercator("png", YAxis.OSM, 2, 11);
var s2 = SandD(s1);
var equal = EqualTileSchemas(s1, s2, out message);
Assert.IsTrue(equal, message);
}
public GeodanWorldWmsTileSource()
{
var schema = new GlobalSphericalMercator(YAxis.TMS)
{
Srs = "EPSG:900913"
};
Provider = new HttpTileProvider(CreateWmsRequest(schema));
Schema = schema;
}
public void TestGetNearestLevel()
{
// arrange
var schema = new GlobalSphericalMercator();
// act
var levelId = Utilities.GetNearestLevel(schema.Resolutions, 300.0);
// assert
Assert.True(levelId == "9");
}
public GeodanWorldTmsTileSource()
{
const string url = "http://geoserver.nl/tiles/tilecache.aspx/1.0.0/world_GM/";
var parameters = new Dictionary <string, string>();
parameters.Add("seriveparam", "world_GM");
parameters.Add("uid", "4c6b3b161be3a2eb513b66b09a70f18d");
var request = new TmsRequest(new Uri(url), "png", parameters);
Provider = new WebTileProvider(request);
Schema = new GlobalSphericalMercator(YAxis.TMS);
}
private void button7_Click(object sender, EventArgs e)
{
ITileSchema schema = new GlobalSphericalMercator();
ILayer[] layers = CreateLayers();
SharpMapTileSource source = new SharpMapTileSource(schema, layers);
TileAsyncLayer osmLayer = new TileAsyncLayer(source, "TileLayer - SharpMap");
this.mapBox1.Map.BackgroundLayer.Clear();
this.mapBox1.Map.BackgroundLayer.Add(osmLayer);
this.mapBox1.Refresh();
}
public ITileSource CreateTileSource()
{
var tileSchema = new GlobalSphericalMercator();
var servers = new List <string> {
"01", "02", "03", "04"
};
var yandexRequest = new BasicRequest(_url, servers);
var tileProvider = new WebTileProvider(yandexRequest);
var tileSource = new TileSource(tileProvider, tileSchema);
return(tileSource);
}
public void WorldToTileShouldReturnCorrectTileRange()
{
// arrange
var expectedRange = new TileRange(1, 2);
var schema = new GlobalSphericalMercator(YAxis.TMS);
var extent = new Extent(-15028130, -10018753, -10018755, -5009378);
// act
var range = TileTransform.WorldToTile(extent, 3, schema);
// assert
Assert.AreEqual(range, expectedRange);
}
public static ITileSchema GetTileSchema()
{
var schema = new GlobalSphericalMercator(YAxis.TMS);
schema.Resolutions.Clear();
schema.Resolutions["0"] = new Resolution {
Id = "0", UnitsPerPixel = 156543.033900000
};
schema.Resolutions["1"] = new Resolution {
Id = "1", UnitsPerPixel = 78271.516950000
};
return(schema);
}
private static ITileCache <IFeature?> PopulateMemoryCache(GlobalSphericalMercator schema, MemoryCache <IFeature?> cache, int levelId)
{
for (var i = levelId; i >= 0; i--)
{
var tiles = schema.GetTileInfos(schema.Extent, i);
foreach (var tile in tiles)
{
if ((tile.Index.Col + tile.Index.Row) % 2 == 0) // Add only 50% of the tiles with the arbitrary rule.
{
cache.Add(tile.Index, new RasterFeature(new MRaster(Array.Empty <byte>(), new MRect(0, 0, 1, 1))));
}
}
}
return(cache);
}
private static ITileCache <Feature> PopulateMemoryCache(GlobalSphericalMercator schema, MemoryCache <Feature> cache, int levelId)
{
for (var i = levelId; i >= 0; i--)
{
var tiles = schema.GetTileInfos(schema.Extent, i.ToString(CultureInfo.InvariantCulture));
foreach (var tile in tiles)
{
if ((tile.Index.Col + tile.Index.Row) % 2 == 0) // Add only 50% of the tiles with the arbitrary rule.
{
cache.Add(tile.Index, new Feature());
}
}
}
return(cache);
}
