That graph isn't one picture. It's a lot of pictures that they fit together. When you zoom in you get different pictures. I see these circle/star plots sometim

That graph isn't one picture. It's a lot of pictures that they fit together. When you zoom in you get different pictures. I see these circle/star plots sometimes but don't see the advantage over bar charts in conveying information or meaning. Am I missing something that a circle of dots adds that a line of bars or dots doesn't?