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 SphericalMercatorWorldSchema();
}
public void WhenInitializedWithServerNodesShouldReturnCorrectUri()
{
// arrange
var request = new TmsRequest("http://{S}.tileserver.com", "png", new[] { "a", "b"});
var tileInfo = new TileInfo { Index = new TileIndex(1, 2, 3) };
// act
var uri = request.GetUri(tileInfo);
// assert
Assert.True(new [] { "http://a.tileserver.com/3/1/2.png", "http://b.tileserver.com/3/1/2.png" }.Contains(uri.ToString()));
}
public void WhenInitializedShouldReturnCorrectUri()
{
// arrange
var request = new TmsRequest("http://tileserver.com", "png");
var tileInfo = new TileInfo {Index = new TileIndex(1, 2, 3)};
// act
var uri = request.GetUri(tileInfo);
// assert
Assert.AreEqual(uri.ToString(), "http://tileserver.com/3/1/2.png");
}
/// <summary>
/// Renders the layer
/// </summary>
/// <param name="g">Graphics object reference</param>
/// <param name="map">Map which is rendered</param>
public override void OnRender(System.Drawing.Graphics g, Map map)
{
MapTransform mapTransform = new MapTransform(new PointF((float)Map.Center.X, (float)Map.Center.Y), (float)Map.PixelSize, Map.Image.Width, Map.Image.Height);
int level = BruTile.Utilities.GetNearestLevel(schema.Resolutions, Map.PixelSize);
IList<TileInfo> tileInfos = schema.GetTilesInView(mapTransform.Extent, level);
IRequest requestBuilder = new TmsRequest(new Uri("http://a.tile.openstreetmap.org"), "png");
var graphics = Graphics.FromImage(Image);
//log.DebugFormat("Downloading tiles:");
foreach (var tileInfo in tileInfos)
{
var bytes = cache.Find(tileInfo.Index);
if (bytes == default(byte[]))
{
try
{
//log.DebugFormat("row: {0}, column: {1}, level: {2}", tileInfo.Index.Row, tileInfo.Index.Col, tileInfo.Index.Level);
var url = requestBuilder.GetUri(tileInfo);
bytes = RequestHelper.FetchImage(url);
cache.Add(tileInfo.Index, bytes);
}
catch (WebException e)
{
log.Error("Can't fetch tiles from the server", e);
}
}
else
{
log.DebugFormat("row: {0}, column: {1}, level: {2} (cached)", tileInfo.Index.Row, tileInfo.Index.Col, tileInfo.Index.Level);
}
if (bytes == null) continue;
using (var bitmap = new Bitmap(new MemoryStream(bytes)))
{
var rectangle = mapTransform.WorldToMap(tileInfo.Extent.MinX, tileInfo.Extent.MinY,
tileInfo.Extent.MaxX, tileInfo.Extent.MaxY);
DrawTile(schema, graphics, bitmap, rectangle);
}
}
}
private void Form1Load(object sender, EventArgs e)
{
var transform = new Transform(new PointF(629816f, 6805085f), 1222.992452344f, Width, Height);
var schema = CreateTileSchema();
var tiles = schema.GetTilesInView(transform.Extent, Utilities.GetNearestLevel(schema.Resolutions, transform.Resolution));
var requestBuilder = new TmsRequest(new Uri("http://a.tile.openstreetmap.org"), "png");
var graphics = Graphics.FromImage(buffer);
foreach (var tile in tiles)
{
var url = requestBuilder.GetUri(tile);
byte[] bytes = RequestHelper.FetchImage(url);
var bitmap = new Bitmap(new MemoryStream(bytes));
graphics.DrawImage(bitmap, transform.WorldToView(tile.Extent.MinX, tile.Extent.MinY, tile.Extent.MaxX, tile.Extent.MaxY));
}
Invalidate();
}
