Created
June 6, 2024 10:28
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UPRN PMTiles
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| bun --watch index.ts | |
| pmtiles serve ./files/script --port 9421 --public-url http://localhost:9421 --cors http://localhost:9420 |
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| Bun.serve({ | |
| port: 9420, | |
| hostname: "localhost", | |
| fetch() { | |
| return new Response(Bun.file("map.html")); | |
| }, | |
| }); |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>UPRN</title> | |
| <script src="https://unpkg.com/maplibre-gl/dist/maplibre-gl.js"></script> | |
| <link rel="stylesheet" href="https://unpkg.com/maplibre-gl/dist/maplibre-gl.css"> | |
| <style> | |
| html,body { padding: 0; margin: 0; } | |
| #map { | |
| width:100vw; | |
| height:100vh | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <script> | |
| const map = new maplibregl.Map({ | |
| container: 'map', // container id | |
| style: 'https://api.maptiler.com/maps/uk-openzoomstack-outdoor/style.json?key=ynz58rRjiygeONss49bn', // style URL | |
| center: [-1.3545053, 52.056308], // starting position [lng, lat] | |
| zoom: 13 // starting zoom | |
| }); | |
| map.on('style.load', () => { | |
| const waiting = () => { | |
| if (!map.isStyleLoaded()) { | |
| setTimeout(waiting, 200); | |
| } else { | |
| map.addSource('uprn_source', { | |
| type: 'vector', | |
| url: 'http://localhost:9421/uprn.json' | |
| }); | |
| map.addLayer( | |
| { | |
| 'id': 'uprn-points', | |
| 'type': 'circle', | |
| 'source': 'uprn_source', | |
| 'source-layer': 'points', | |
| 'paint': { | |
| "circle-color": "rgb(185,38,38)", | |
| "circle-opacity": 0.8, | |
| } | |
| }, | |
| ); | |
| } | |
| }; | |
| waiting(); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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| #!/usr/bin/env bash | |
| curl 'https://api.os.uk/downloads/v1/products/OpenUPRN/downloads?area=GB&format=CSV&redirect' -L -o 'files/script/uprn.zip' | |
| tar -zxvf 'files/script/uprn.zip' 'osopenuprn_202405.csv' | |
| mv 'osopenuprn_202405.csv' 'files/script/uprn.csv' | |
| duckdb -c "install spatial;load spatial;copy (select st_point(LONGITUDE, LATITUDE) as geometry, UPRN as uprn from 'files/script/uprn.csv') to 'files/script/uprn.fgb' WITH (FORMAT GDAL, DRIVER 'FlatGeobuf');" | |
| tippecanoe -z13 -rg -K5 -kg -X -f -o 'files/script/uprn.pmtiles' -l points 'files/script/uprn.fgb' |
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