aaronpdennis

https://api.mapbox.com/v4/mapbox.pencil/page.html?access_token=pk.eyJ1IjoiYWFyb25kZW5uaXMiLCJhIjoiem5LLURoYyJ9.T3tswGTI5ve8_wE-a02cMw#16/40.7948/-797.8617

http://pennstategeog467.github.io/pop-carte/

http://pennstategeog467.github.io/emergency-campus-map/#15/40.8016/-77.8559

https://www.mapbox.com/bites/00087/

http://pennstategeog467.github.io/project-two/

aaronpdennis

#!/usr/bin/env node

var fs = require('fs');
var osmium = require('osmium');
var turf = require('turf');
var Cardboard = require('cardboard');

var cardboard = Cardboard({
    table: 'hdm-vt-table',
    region: 'us-east-1',

aaronpdennis

Building and Updating a Global HDM Vector Tile Source from OSM Data

The Mapbox Studio style hdm-style.tm2 is a humanitarian map design that relies on three vector tile sources, two of which are hosted and served by Mapbox:

1. Mapbox Streets
2. Mapbox Terrain
3. Humanitarian Data Model vector tiles

The third source is the focus of this writeup. Currently, hdm-style.tm2 uses a hand-processed, non-updating snapshot of HDM vector tiles for small subregions of the world. This gist explains in rough psuedocode and theory how you could set up a HDM vector tiles source that would update hourly (or minutely or daily) from the OSM database and cover the entire planet.

aaronpdennis

To generate an MBTiles file with PNG image map tiles from the Humanitarian Data Model style, follow this steps (on Mac OS X).

Part 1:

Use this workflow to generate a vector tile based map in Mapbox Studio from an osm.pbf file. https://gist.github.com/aaronpdennis/a53f9afb8ef24d499e96

Part 2:

Install tl.

aaronpdennis

node blood-type-donors-map.js ./data/blood_drives_verified.geojson | tippecanoe -f -z 8 -b 12 -r 2.0 -o ../blood_types.mbtiles

aaronpdennis

tippecanoe -z 9 -f -o ../hex-tiles.mbtiles ./data/grid-agg.geojson

aaronpdennis

{
  "water_source": {
    "class": {
      "water well": ["man_made=water_well"],
      "water tower": ["man_made=water_tower"],
      "water tank": ["man_made=storage_tank", "man_made=water_tank"],
      "spring": ["natural=spring"],
      "drinking water": ["amenity=drinking_water"]
    },
    "potable": {

aaronpdennis

tippecanoe \
  -z 14 -Z 13 \
  -d12 -D12 \
  -b 20 \
  -pc -f \
  -o hdm.mbtiles \
    hdm-data/hdm_label.json\
    hdm-data/water_source.json \
    hdm-data/communication.json \
    hdm-data/electric_utility.json \

aaronpdennis

aaronpdennis

topojson \
  -o ../site/countries_topo.json \
  -p \
  -- countries.json