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Countries by Size
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# Download and Transform the 1:50m Country Shapefiles from Natural Earth | |
# http://www.naturalearthdata.com/downloads/50m-cultural-vectors/ | |
URL = http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/cultural/ne_50m_admin_0_countries.zip | |
# Download the zip file from the Natural Earth server | |
ne_50m_admin_0_countries.zip: | |
curl -LO $(URL) | |
# Unzip the shapefiles | |
ne_50m_admin_0_countries.shp: ne_50m_admin_0_countries.zip | |
unzip ne_50m_admin_0_countries.zip | |
touch ne_50m_admin_0_countries.shp | |
# Convert the shapefiles to GeoJSON | |
countries.geojson: ne_50m_admin_0_countries.shp | |
ogr2ogr -f GeoJSON countries.geojson ne_50m_admin_0_countries.shp | |
# Convert the GeoJSON file to TopoJSON | |
countries.topojson: countries.geojson | |
topojson -p -o countries.topojson countries.geojson | |
# Remove source and temporary files | |
clean: | |
rm ne_50m_admin_0_countries* |
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