public override Uri GetUri(int x, int y, int zoomLevel)
{
Uri uri = null;
if (UriTemplate != null)
{
var tileSize = 360d / (1 << zoomLevel); // tile width in degrees
var west = MapProjection.Wgs84MeterPerDegree * (x * tileSize - 180d);
var east = MapProjection.Wgs84MeterPerDegree * ((x + 1) * tileSize - 180d);
var south = MapProjection.Wgs84MeterPerDegree * (180d - (y + 1) * tileSize);
var north = MapProjection.Wgs84MeterPerDegree * (180d - y * tileSize);
if (UriTemplate.Contains("{bbox}"))
{
uri = new Uri(UriTemplate.Replace("{bbox}",
string.Format(CultureInfo.InvariantCulture, "{0:F2},{1:F2},{2:F2},{3:F2}", west, south, east, north)));
}
else
{
uri = new Uri(UriTemplate
.Replace("{west}", west.ToString("F2", CultureInfo.InvariantCulture))
.Replace("{south}", south.ToString("F2", CultureInfo.InvariantCulture))
.Replace("{east}", east.ToString("F2", CultureInfo.InvariantCulture))
.Replace("{north}", north.ToString("F2", CultureInfo.InvariantCulture)));
}
}
return(uri);
}
public override string ToString()
{
var stringBuilder = new StringBuilder();
stringBuilder.Append("[");
stringBuilder.Append($"UriTemplate = '{UriTemplate.Replace("{", "{{").Replace("}", "}}")}', ");
stringBuilder.Append($"UriTemplateRegex = '{UriTemplateRegex.ToString().Replace("{", "{{").Replace("}", "}}")}'");
stringBuilder.Append("]");
return(stringBuilder.ToString());
}
public override Uri GetUri(int x, int y, int zoomLevel)
{
Uri uri = null;
if (UriTemplate != null &&
TileMatrixSet != null && TileMatrixSet.TileMatrixes.Count > zoomLevel &&
x >= 0 && y >= 0 && zoomLevel >= 0)
{
uri = new Uri(UriTemplate
.Replace("{TileMatrixSet}", TileMatrixSet.Identifier)
.Replace("{TileMatrix}", TileMatrixSet.TileMatrixes[zoomLevel].Identifier)
.Replace("{TileCol}", x.ToString())
.Replace("{TileRow}", y.ToString()));
}
return(uri);
}
public override Uri GetUri(int x, int y, int zoomLevel)
{
Uri uri = null;
if (UriTemplate != null && Subdomains != null && Subdomains.Length > 0 && zoomLevel > 0)
{
var subdomain = Subdomains[(x + y) % Subdomains.Length];
var quadkey = new char[zoomLevel];
for (var z = zoomLevel - 1; z >= 0; z--, x /= 2, y /= 2)
{
quadkey[z] = (char)('0' + 2 * (y % 2) + (x % 2));
}
uri = new Uri(UriTemplate
.Replace("{subdomain}", subdomain)
.Replace("{quadkey}", new string(quadkey)));
}
return(uri);
}
