// Creating a TileKey object with zoom level 10, x-coordinate 123, and y-coordinate 456 mapnik::TileKey tile_key(10, 123, 456);
// Retrieving tiles for a range of zoom levels and coordinates for (int zoom = 10; zoom < 13; zoom++) { for (int x = 0; x < 1024; x++) { for (int y = 0; y < 1024; y++) { mapnik::TileKey tile_key(zoom, x, y); // Load tile using tile key... } } }The package library for TileKey is Mapnik, which is an open source toolkit for developing mapping applications. Mapnik provides a powerful set of tools for rendering maps and handling geographic data, including support for raster and vector tile formats, geocoding and reverse geocoding, and support for popular map projections.