Why isn't this a pie chart?
"Pie charts are completely useless." — https://en.wikipedia.org/wiki/Jacques_Bertin
"Pie charts subtract from the world's knowledge." — https://en.wikipedia.org/wiki/Edward_Tufte , https://www.google.com/search?q=edward+tufte+pie+charts
> Pies and doughnuts fail because:
> Quantity is represented by slices; humans aren’t particularly good at estimating quantity from angles, which is the skill needed.
> Matching the labels and the slices can be hard work.
> Small percentages (which might be important) are tricky to show.
* https://scc.ms.unimelb.edu.au/resources/data-visualisation-a...
This visual seems to better preserve the size of smaller markets, like Singapore and Australia. In a pie chart, they'd be indecipherable.
It certainly works to optimize squatter triangles over long narrow triangles, and these shapes over arcs.
Does this even have any advantages over a pie chart? IIRC people are not good at judging relative area at all, even circles. How much does un-wedging the pie help?
At least with a pie chart you can try to compare arc length which may be easier?