world

World Geometries

Admin 0 Country Boundaries

Type: MultiPolygon
Source: geojson.xyz

download the geojson file

wget https://d2ad6b4ur7yvpq.cloudfront.net/naturalearth-3.3.0/ne_50m_admin_0_countries.geojson

convert the geojson to topojson (with simplification) and preserve a couple key properties

geo2topo -s 1e-6 ne_50m_admin_0_countries.geojson -p name -p pop_est -p continent -o ne_50m_admin_0_countries.topojson

Populated Places Simple (Cities)

Type: Point
Source: geojson.xyz

download the geojson file

wget https://d2ad6b4ur7yvpq.cloudfront.net/naturalearth-3.3.0/ne_50m_populated_places_simple.geojson

convert the geojson to topojson and preserve only a couple key properties

geo2topo ne_50m_populated_places_simple.geojson -p name -p adm0name -o ne_50m_populated_places_simple.topojson

Rivers & Lake centerlines

Type: LineString
source: geojson.xyz

download the geojson file

wget https://d2ad6b4ur7yvpq.cloudfront.net/naturalearth-3.3.0/ne_50m_rivers_lake_centerlines.geojson

convert the geojson to topojson and preserve only a couple key properties

geo2topo -s 1e-6 ne_50m_rivers_lake_centerlines.geojson -p name -p dissolve -p featureclass -o ne_50m_rivers_lake_centerlines.topojson

File sizes

Notice how much smaller the topojson files are than the geojson:

filesize	filename
3.9M	ne_50m_admin_0_countries.geojson
301K	ne_50m_admin_0_countries.topojson
893K	ne_50m_populated_places_simple.geojson
121K	ne_50m_populated_places_simple.topojson
1.0M	ne_50m_rivers_lake_centerlines.geojson
143K	ne_50m_rivers_lake_centerlines.topojson