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Web Mercator Tile Cache for GIS Data Visualization

Utilize TileMill and MBTiles to create a web map tile cache for georectified maps, accessible via a web mapping library. Easily display and navigate through large volumes of vector data.

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Web Mercator Tile Cache for GIS Data Visualization

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  1. All Tiled Up Mike Graves MIT Libraries mgraves@mit.edu

  2. 71

  3. c. 200 BC

  4. Spoiler Alert! The world is round.

  5. Spherical Mercator Web Mercator EPSG 900913 EPSG 3785 EPSG 3857

  6. Web GIS Stack Tile Cache OGC Endpoint Geodatabase

  7. MBTiles https://github.com/mapbox/mbtiles-spec

  8. metadata name value tiles zoom_level tile_column tile_row tile_data

  9. TileMill https://github.com/mapbox/tilemill

  10. Leaflet var map = L.map('map').setView([35.81, -78.64], 1); L.tileLayer('http://example.com/mymap/{z}/{x}/{y}.png', { tms: true }).addTo(map);

  11. https://github.com/mapbox/mbtiles-spec/wiki/Implementations#othershttps://github.com/mapbox/mbtiles-spec/wiki/Implementations#others

  12. The Dre Gambit (™) /var/www/mymap/1/0/0.png /var/www/mymap/1/0/1.png /var/www/mymap/1/1/0.png /var/www/mymap/1/1/1.png

  13. tl;dr • Load your georectified map into TileMill • Export to MBTiles • Make your tiles accessible on the Web • Point your web mapping library at your tiles

  14. vector data

  15. lots of data

  16. changing data

  17. We Want Your Data (in a totally constitutionally legal way)

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