public bool IsTileCached(TilePosition position, Layer layer)
{
return(_cachedTiles.TryGetValue(layer, out var lookup) && lookup.Contains(position));
}
public Tile(TilePosition position, SlimEnvelope envelope, LevelOfDetail lod)
{
Position = position;
Envelope = envelope;
LevelOfDetail = lod ?? throw new ArgumentNullException(nameof(lod));
}
public TileCacheKey(TilePosition position, Layer layer)
{
Position = position;
Layer = layer;
}
