Radial bars chart: add extra dots or strips to bands/bars

Community Help
#1

As can be seen in the link, each band represent a column from the data file, the band start point is the minimum value (Pmin_F and Tmin_F), and the end is the maximum value (Pmax_F and Tmax_F). However I also have the average value (Pavg_F and Tavg_F) in the data. Thus I want to show the average value on each bands by dots or strips. Could you please tell me where should I modified?

Radial bars chart

#2

Well, I don’t know anything about the data and I can’t say much for my choice of color scheme, but this seems to do it:

The basic idea is to join circles based on the data, just as you joined paths already. That bit of code looks something like so:

svg
  .append('g')
  .selectAll('circle')
  .data(data)
  .join('circle')
  .attr('r', 2)
  .attr('cx', ...)
  .attr('cy', ...)

The ... indicating cx and cy contains a little trigonometry. The values stored in the data didn’t look quite right so I just computed those averages instead.

#3

Thank you very much! I’ll look at the codes

1 Like
#4

:+1:

It occurs to me that you might get a nicer looking result using the arc function that’s already defined in your notebook to create an arc of some small width centered at the average.

#5

Yes thank you for the suggestions, I’m trying to add arc as you suggested~