a thematic map about internet worldwide utilization from 1996 till 2011
This is the final class assignment for Maps and the Geospatial Revolution.
With this map I wanted to visualize the evolution of Internet usage in time. It can also help understandanding the so called Internet divide between countries.
- Mouseover the year to move forward and backwards through time.
- Black countries reflect non exisitent data.
- hover on a country and a tooltip will provide the relevant internet usage stats
I used D3.js and took inspiration, i.e. code snippets, from the following examples:
- automatic and manual navigation thru the years, Mike Bostok's implementation of Gaminder's 'The Wealth & Health of Nations' graph.
- quantitative scale with custom thresholds, Mike Bostok's gist on Kentuky Population Density
- 'Internet users (per 100 people)', World Bank.
- geographical data, Natural Earth transformed with ogr2ogr (an utility part of OGR simple feature library) and topoJSON.
$ ogr2ogr -f GeoJSON \
-sql "SELECT ADM0_A3 as a3, NAME as name, iso_n3 as id from ne_10m_admin_0_countries" \
countries.json \
data/ne_10m_admin_0_countries/ne_10m_admin_0_countries.shp
$ topojson -q 1e5 --id-property=a3 -p name -p n3=id -o world-50m.json countries.json