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Last active June 12, 2018 04:16
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Merging shapefiles and making GEOJSON
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README.md

After downloading the Natural Earth country and state/province shapefiles, unzip them into a directory and then cd into that directory. Then merge the shapefiles into one file called merged.shp by doing...

docker run -v $(pwd):/data geodata/gdal \
ogr2ogr \
  -lco ENCODING=UTF-8 \
  -f "ESRI Shapefile" \
  merged.shp \
  ne_50m_admin_0_countries/ne_50m_admin_0_countries.shp

docker run -v $(pwd):/data geodata/gdal \
ogr2ogr \
  -lco ENCODING=UTF-8 \
  -f "ESRI Shapefile" \
  -update \
  -append merged.shp ne_50m_admin_1_states_provinces/ne_50m_admin_1_states_provinces.shp \
  -nln merged

Then generate the GEOJSON (selecting only a few properties of interest with the goal of reducing file size) by doing...

docker run -v $(pwd):/data geodata/gdal \
ogr2ogr \
  -f GeoJSON \
  -select NAME,ADM0_A3,TYPE \
  -simplify 0.15 \
  merged.geojson \
  merged.shp
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