set title "Vývoj OpenStreetMap v České republice"
set xdata time
set timefmt "%Y-%m-%d_%H:%M:%S"
set style fill solid 0.75 border
set format x "%m/%Y"
set terminal png size 1200, 800

set output "pocet-bodu.png"
plot "grafy.txt" using 1:2 title "Počet bodů" with lines

set output "pocet-cest.png"
plot "grafy.txt" using 1:4 title "Počet cest" with lines

set output "pocet-relaci.png"
plot "grafy.txt" using 1:6 title "Počet relací" with lines

set yrange [ -15000 : 150000 ]
set output "zmeny-bodu.png"
plot "grafy.txt" using 1:3 title "Změny počtu bodů / den" with lines

set yrange [ -2000 : 20000 ]
set output "zmeny-cest.png"
plot "grafy.txt" using 1:5 title "Změny počtu cest / den" with lines

set yrange [ -50 : 500 ]
set output "zmeny-relaci.png"
plot "grafy.txt" using 1:7 title "Změny počtu relací / den" with lines