Leaflet gradial-segment-charts plugin

no steps:

0 1 2 3 4 5 10 15 20 25 30

max distance of segment (m)

10000 20000 40000 60000 80000 10000 10000 20000 30000

opacity decrease coefficient

-0.5 0 0.05 0.1 0.15 0.2 0.25 0.3 0.4 0.5

maximum opacity (most inner circle)

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

segment`s angle (°):

3 9 10 15 18

Data: Presence of Isiac cults temples in the area of Ancient Greece (author: Tomáš Glomb)