polar plot

set terminal png size 800,800 enhanced font "Helvetica,20"
set output 'output.png'

set polar
set angles degrees

set trange [0:180]

# data format: millimeters, 100th of degrees
# 4072,17
# 4072,35
# 4072,52
# ...
# 1058,17964
# 1058,17982
# 1050,18000

plot "downsampled.txt" using ($1):($0/100) with points