NYC taxi with datamaps

taxi.sh

#!/bin/sh

for i in trip_data_*.csv.zip
do
        unzip -c $i
done |
tr -d '\015' |
awk -F, '{print $12 "," $11 " 1:0"; print $14 "," $13 " 1:1"}' |
/data2/data/github/datamaps/encode -z19 -m1 -o nyc-taxi-all

/data2/data/github/datamaps/enumerate -b40.458,-74.590,41.131,-73.494 -z16 nyc-taxi-all/ |
xargs -L1 -P8 sh -c '/data2/data/github/datamaps/render -xs1 -C0:240:1:30 -p2 -B 18:.004378:1.23 -G 0.3 $1 $2 $3 $4 | /data2/data/github/pngquant/pngquant 64 > nyc-taxi.tiles/$2/$3/$4.png' blah

/data2/data/github/mbutil/mb-util nyc-taxi.tiles nyc-taxi.mbtiles