Standard Tile Matrix Sets¶

DefaultTileMatrixSets exposes the most common tile matrix sets as immutable static constants. Each instance is fully populated with an OGC identifier, the supportedCRS URI, and, when applicable, the matching well-known scale set URI.

WebMercatorQuad¶

The OGC standard set used by Google Maps, OpenStreetMap, Mapbox, Leaflet, OpenLayers and almost every web mapping client.

• identifier: WebMercatorQuad
• CRS: EPSG:3857 (Spherical Mercator, meters)
• wellKnownScaleSet: http://www.opengis.net/def/wkss/OGC/1.0/GoogleMapsCompatible
• Origin: top-left
• Structure: 1 tile at zoom 0, four child tiles at each subsequent level

TileMatrixSet tms = DefaultTileMatrixSets.WEB_MERCATOR_QUAD;
TileMatrixSet tms512 = DefaultTileMatrixSets.WEB_MERCATOR_QUADx2; // 512 px tiles

WorldCRS84Quad¶

OGC standard set for geographic (longitude/latitude) tile pyramids. Useful when you want to avoid reprojection to Web Mercator.

• identifier: WorldCRS84Quad
• CRS: EPSG:4326 (WGS84 lon/lat)
• wellKnownScaleSet: http://www.opengis.net/def/wkss/OGC/1.0/GoogleCRS84Quad
• Origin: top-left
• Structure: 2x1 tiles at zoom 0 covering [-180, -90, 180, 90]

TileMatrixSet tms = DefaultTileMatrixSets.WORLD_CRS84_QUAD;
TileMatrixSet tms512 = DefaultTileMatrixSets.WORLD_CRS84_QUADx2; // 512 px tiles

Legacy GeoWebCache-style sets¶

These match the GeoWebCache resolution arrays used by older deployments. They share the underlying CRS with the OGC sets above but do not carry a well-known scale set URI.

Common properties¶

Every standard set is thread-safe and immutable, and exposes:

• the canonical identifier() (mandatory in OGC TMS 2D),
• a supportedCRS() URI suitable for OGC API - Tiles consumption,
• precomputed resolution(int z) and matching scaleDenominator() values calculated from the standard 0.28 mm rendering pixel size,
• a boundingBox() covering the full CRS extent,
• a tilePyramid() exposing the per-level tile ranges.