public Uri BuildUri(ImageryProvider provider, int x, int y, int zoom)
{
string[] serverNodes = provider.UrlModel.Servers;
string server = string.Empty;
if (serverNodes != null && serverNodes.Length > 0)
{
_serverCycle = (_serverCycle + 1) % serverNodes.Length;
server = serverNodes[_serverCycle];
}
string url = provider.UrlModel.UrlFormat;
url = url.Replace("{s}", server);
url = url.Replace("{x}", x.ToString());
url = url.Replace("{y}", y.ToString());
url = url.Replace("{z}", zoom.ToString());
url = url.Replace("{quadkey}", TileUtils.TileXYToQuadKey(x, y, zoom));
if (url.Contains("{t}"))
{
var token = GetToken(provider);
if (String.IsNullOrWhiteSpace(token))
{
var message =
$"There is no token found for {provider.Name} provider. Make sure a user secrets are set with a {provider.TokenUserSecretsKey} value.";
_logger?.LogError(message);
throw new Exception(message);
}
url = url.Replace("{t}", token);
}
return(new Uri(url, UriKind.Absolute));
}
public MapTileInfo ZoomIn(string quadIndex)
{
if (Zoom == 23)
{
return(this);
}
TileUtils.QuadKeyToTileXY(string.Concat(TileUtils.TileXYToQuadKey(X, Y, Zoom), quadIndex), out int x0, out int y0, out int z0);
return(new MapTileInfo(x0, y0, z0, this.TileSize));
}
public MapTileInfo ZoomOut()
{
if (Zoom == 1)
{
return(this);
}
var quadKey = TileUtils.TileXYToQuadKey(X, Y, Zoom);
TileUtils.QuadKeyToTileXY(quadKey.Substring(0, quadKey.Length - 1), out int x0, out int y0, out int z0);
return(new MapTileInfo(x0, y0, z0, this.TileSize));
}