A tiny cli for extracting node-s2 cell covers with cell info and index order visualization. The output looks like this:
###install
npm install s2cover -g
###usage
# read a geojson file
s2cover ./poly.geojson | geojsonio
# pipe in geojson
cat poly.geojson | s2cover | geojsonio
###options
-h --help : show options and usage
-l --line : draw a hilburt curve throught the cells by index order
-c --color color the cells from white->purple by index order