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https://github.com/ClemensFischer/XAML-Map-Control.git
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Version 4.2.0
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ClemensF
parent
a71b912405
commit
a7bb9e1ef4
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@ -21,8 +21,9 @@ namespace MapControl
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/// </summary>
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public partial class TileSource
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{
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private Func<int, int, int, Uri> getUri;
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private string uriFormat = string.Empty;
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private Func<int, int, int, string> getUri;
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private string uriFormat;
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private int subdomainIndex = -1;
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public TileSource()
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{
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@ -33,6 +34,8 @@ namespace MapControl
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this.uriFormat = uriFormat;
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}
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public string[] Subdomains { get; set; }
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/// <summary>
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/// Gets or sets the format string to produce tile Uris.
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/// </summary>
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@ -48,28 +51,16 @@ namespace MapControl
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uriFormat = value;
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if (uriFormat.Contains("{x}") && uriFormat.Contains("{y}") && uriFormat.Contains("{z}"))
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if (uriFormat.Contains("{x}") && uriFormat.Contains("{z}"))
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{
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if (uriFormat.Contains("{c}"))
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if (uriFormat.Contains("{y}"))
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{
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getUri = GetOpenStreetMapUri;
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getUri = GetDefaultUri;
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}
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else if (uriFormat.Contains("{i}"))
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else if (uriFormat.Contains("{v}"))
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{
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getUri = GetGoogleMapsUri;
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getUri = GetTmsUri;
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}
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else if (uriFormat.Contains("{n}"))
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{
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getUri = GetMapQuestUri;
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}
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else
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{
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getUri = GetBasicUri;
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}
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}
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else if (uriFormat.Contains("{x}") && uriFormat.Contains("{v}") && uriFormat.Contains("{z}"))
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{
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getUri = GetTmsUri;
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}
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else if (uriFormat.Contains("{q}")) // {i} is optional
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{
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@ -83,19 +74,38 @@ namespace MapControl
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{
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getUri = GetLatLonBoundingBoxUri;
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}
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if (Subdomains == null && uriFormat.Contains("{c}"))
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{
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Subdomains = new string[] { "a", "b", "c" };
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}
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}
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}
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/// <summary>
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/// Gets the map tile Uri.
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/// Gets the image Uri for the specified tile indices and zoom level.
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/// </summary>
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public virtual Uri GetUri(int x, int y, int zoomLevel)
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{
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return getUri?.Invoke(x, y, zoomLevel);
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if (getUri == null)
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{
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return null;
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}
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var uri = getUri(x, y, zoomLevel);
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if (Subdomains != null && Subdomains.Length > 0)
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{
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subdomainIndex = (subdomainIndex + 1) % Subdomains.Length;
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uri = uri.Replace("{c}", Subdomains[subdomainIndex]);
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}
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return new Uri(uri, UriKind.RelativeOrAbsolute);
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}
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/// <summary>
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/// Load a tile ImageSource asynchronously from GetUri(x, y, zoomLevel)
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/// Loads a tile ImageSource asynchronously from GetUri(x, y, zoomLevel).
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/// </summary>
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public virtual async Task<ImageSource> LoadImageAsync(int x, int y, int zoomLevel)
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{
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@ -129,63 +139,25 @@ namespace MapControl
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return imageSource;
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}
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private Uri GetBasicUri(int x, int y, int zoomLevel)
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private string GetDefaultUri(int x, int y, int zoomLevel)
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{
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return new Uri(uriFormat
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return uriFormat
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.Replace("{x}", x.ToString())
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.Replace("{y}", y.ToString())
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.Replace("{z}", zoomLevel.ToString()),
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UriKind.RelativeOrAbsolute);
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.Replace("{z}", zoomLevel.ToString());
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}
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private Uri GetOpenStreetMapUri(int x, int y, int zoomLevel)
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{
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var hostIndex = (x + y) % 3;
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return new Uri(uriFormat
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.Replace("{c}", "abc".Substring(hostIndex, 1))
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.Replace("{x}", x.ToString())
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.Replace("{y}", y.ToString())
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.Replace("{z}", zoomLevel.ToString()),
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UriKind.RelativeOrAbsolute);
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}
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private Uri GetGoogleMapsUri(int x, int y, int zoomLevel)
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{
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var hostIndex = (x + y) % 4;
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return new Uri(uriFormat
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.Replace("{i}", hostIndex.ToString())
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.Replace("{x}", x.ToString())
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.Replace("{y}", y.ToString())
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.Replace("{z}", zoomLevel.ToString()),
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UriKind.RelativeOrAbsolute);
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}
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private Uri GetMapQuestUri(int x, int y, int zoomLevel)
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{
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var hostIndex = (x + y) % 4 + 1;
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return new Uri(uriFormat
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.Replace("{n}", hostIndex.ToString())
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.Replace("{x}", x.ToString())
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.Replace("{y}", y.ToString())
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.Replace("{z}", zoomLevel.ToString()),
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UriKind.RelativeOrAbsolute);
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}
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private Uri GetTmsUri(int x, int y, int zoomLevel)
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private string GetTmsUri(int x, int y, int zoomLevel)
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{
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y = (1 << zoomLevel) - 1 - y;
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return new Uri(uriFormat
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return uriFormat
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.Replace("{x}", x.ToString())
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.Replace("{v}", y.ToString())
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.Replace("{z}", zoomLevel.ToString()),
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UriKind.RelativeOrAbsolute);
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.Replace("{z}", zoomLevel.ToString());
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}
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private Uri GetQuadKeyUri(int x, int y, int zoomLevel)
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private string GetQuadKeyUri(int x, int y, int zoomLevel)
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{
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if (zoomLevel < 1)
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{
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@ -199,13 +171,12 @@ namespace MapControl
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quadkey[z] = (char)('0' + 2 * (y % 2) + (x % 2));
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}
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return new Uri(uriFormat
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return uriFormat
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.Replace("{i}", new string(quadkey, zoomLevel - 1, 1))
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.Replace("{q}", new string(quadkey)),
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UriKind.RelativeOrAbsolute);
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.Replace("{q}", new string(quadkey));
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}
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private Uri GetBoundingBoxUri(int x, int y, int zoomLevel)
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private string GetBoundingBoxUri(int x, int y, int zoomLevel)
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{
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var tileSize = 360d / (1 << zoomLevel); // tile width in degrees
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var west = MapProjection.MetersPerDegree * (x * tileSize - 180d);
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@ -213,16 +184,16 @@ namespace MapControl
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var south = MapProjection.MetersPerDegree * (180d - (y + 1) * tileSize);
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var north = MapProjection.MetersPerDegree * (180d - y * tileSize);
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return new Uri(uriFormat
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return uriFormat
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.Replace("{W}", west.ToString(CultureInfo.InvariantCulture))
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.Replace("{S}", south.ToString(CultureInfo.InvariantCulture))
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.Replace("{E}", east.ToString(CultureInfo.InvariantCulture))
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.Replace("{N}", north.ToString(CultureInfo.InvariantCulture))
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.Replace("{X}", MapProjection.TileSize.ToString())
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.Replace("{Y}", MapProjection.TileSize.ToString()));
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.Replace("{Y}", MapProjection.TileSize.ToString());
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}
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private Uri GetLatLonBoundingBoxUri(int x, int y, int zoomLevel)
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private string GetLatLonBoundingBoxUri(int x, int y, int zoomLevel)
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{
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var tileSize = 360d / (1 << zoomLevel); // tile width in degrees
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var west = x * tileSize - 180d;
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@ -230,13 +201,13 @@ namespace MapControl
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var south = WebMercatorProjection.YToLatitude(180d - (y + 1) * tileSize);
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var north = WebMercatorProjection.YToLatitude(180d - y * tileSize);
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return new Uri(uriFormat
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return uriFormat
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.Replace("{w}", west.ToString(CultureInfo.InvariantCulture))
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.Replace("{s}", south.ToString(CultureInfo.InvariantCulture))
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.Replace("{e}", east.ToString(CultureInfo.InvariantCulture))
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.Replace("{n}", north.ToString(CultureInfo.InvariantCulture))
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.Replace("{X}", MapProjection.TileSize.ToString())
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.Replace("{Y}", MapProjection.TileSize.ToString()));
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.Replace("{Y}", MapProjection.TileSize.ToString());
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}
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}
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}
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