Census areas in the UK within tiles of multiple resolutions
In this example we are going to use the
ST_TILEENVELOPE function, which returns the bounding geometry of quadkey tile given its 3D coordinates (x, y and resolution), to showcase the extent of quadkey tiles at different resolutions. For this purpose we are using the United Kingdom census areas dataset from CARTO’s Data Observatory.
Taking as input the longitude and latitude from a geographic point in the city of London, the resulting map depicts the belonging census areas for different tile resolutions (from 11 to 15 zoom levels).
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 960401.