SG Trees Data

Singapore Trees data

This is a data-only repository to complement ExploreTrees.SG.

The data

It's in the data/ folder.

Data pipeline

Requirements

• Node.js 16
• Tippiecanoe

Collection

• npm run trees - fetch all raw tree data from Trees.SG and generate grid-*.json files in the data/grid folder.
• npm run family - fetch family categories for the trees, and generate species-info.json, families-species.json and families.json.
• npm run pois - fetch Points of Interets, mainly the parks, community gardens, heritage roads and skyrise greeneries.

Preparation

• npm run chunk - read all the raw data and generate a cleaner trees-everything.geojson (NOT included in this repository).
• npm run minify - generate minified/compressed data (excludes flowering and heritage data) from trees-everything.geojson into:
  • trees.min.json
    • Data with two keys; line and props.
    • line = All tree coordinates combined into a single line encoded with the Encoded Polyline Algorithm Format.
    • props = All other values from GeoJSON feature.properties
  • trees.min.mp.ico (NOT included in this repository)
    • Same as trees.min.json but compressed with MessagePack.
    • .ico file extension is used to mask the .mp extension which is actually a MessagePack file. It's NOT an icon file and the .ico file extension is meant to fool the server to apply Gzip/Brotli compression on it, since there's no official MIME type for MessagePack. GitHub Pages serves .mp as uncompressed application/octet-stream. Cloudflare compresses image/x-icon.
  • trees.csv - same as trees-everything.geojson but in CSV format. Includes raw coordinates.
  • trees.line.txt - same as line from trees.min.json but in plain text.
  • trees-no-coords.csv - same as trees.csv but without coordinates.
  • heritage-trees.json - list of tree IDs that are in the Heritage Trees list.
• npm run tiles
  • ❗ This requires Tippiecanoe to be installed first.
  • generate the ultimate final trees.mbtiles file, to be uploaded on Mapbox Studio as a tileset.

Copyright

• © Trees.sg © National Parks Board