Skip to content

Instantly share code, notes, and snippets.

@arjones
Last active August 29, 2015 14:23
Show Gist options
  • Save arjones/41af341559388f997230 to your computer and use it in GitHub Desktop.
Save arjones/41af341559388f997230 to your computer and use it in GitHub Desktop.
#!/bin/bash
######
# Reduce the precision to 1 decimal point == 11Km
# Requires BC (shell calculator)
function geo_reduce {
local PRECISION=1
local LAT=$(echo "$1" | cut -d',' -f2)
local LON=$(echo "$1" | cut -d',' -f1)
local RLAT=$(echo "scale=${PRECISION}; ${LAT}/1.0" | bc -l)
local RLON=$(echo "scale=${PRECISION}; ${LON}/1.0" | bc -l)
echo "$RLAT $RLON"
}
######
# Apply the geo_reduce function to a file, line by line
#
# csv_geo_reduce <FILE>
function csv_geo_reduce {
for LINE in $(cat $1); do
geo_reduce "$LINE"
done
}
######
# Convert a CSV to input JSON
#
function as_json {
cat $* | awk '{print "{\"lat\":"$2",\"lng\":"$3",\"count\":"$1"}" }'
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment