need help with a pie chart (TikZ)

Question

I have very little experience with Tikz but I would like to recreate a diagram. The original looks like this:

I luckily found a good template for this diagram that also allows the labels to be positioned circularly along a line. (Unfortunately, that's the catch, why I didn't get anywhere with other programs.)

This template + picture can be found at:

see first answer to this question

or like this:

\documentclass[tikz,border=10pt,multi]{standalone}
\usetikzlibrary{decorations.text}
\begin{document}
\begin{tikzpicture}
  \draw [thick] (0,0) circle (3cm);
  \foreach \i/\j/\k in {0/something/tadpole,45/anything/cauldron,90/another/bread soup,135/whatever/rock candy,180/whenever/lollipop,225/whoever/Bell of Bow,270/why ever/seesaw,315/nothing/roundabout} {
    \draw [black] (0,0) -- (\i:3cm);
    \path [decorate, decoration={text along path, text=\j, text align=center}] (\i:27.5mm) arc (\i:{\i+45}:27.5mm);
    \path [decorate, decoration={text along path, text=\k, text align=center}] (\i:24mm) arc (\i:{\i+45}:24mm);
  }
\end{tikzpicture}
\end{document}

My questions would be how to redesign this code to allow me to trace the diagram in the example image. The problem is that this code is only made for an even split of circles.(For a smaller diagram, for example, I have already succeeded in dividing this circle into three equal parts and creating a second circle twice the size above it, but these attempts are no longer sufficient here).

If someone could help me to create a code in which you have a maximum of 12 single fields (like in the example picture the outermost ring) or even less fields, which are no longer evenly divided and the text is nevertheless centered in a larger field, that would be more than ingenious.

My knowledge is just not sufficient for this. I was only able to create this smaller diagram from derivation of the code and it was not programmed myself.

It would also be fine for me if I could simply generate each ring individually with the new code. So the straight lines starting from the center of the circle don't even have to be interrupted within the programming... I could do that manually in post-processing.

I would be happy if I could make this diagram digitally editable in some way. Many many thanks for any support! :)

Answer 1

For legibility I'm going to make a macro that puts all the texts in their paths, but it is essentially the same used by cfr in the link you provided. In addition, we have to draw a couple of circles and lines.

Something like this:

\documentclass[border=2mm]{standalone}
\usepackage    {ifthen}
\usepackage    {tikz}
\usetikzlibrary{decorations.text}

\newcommand\mytext[6] % inner radius, outer radius, start angle, end angle, relative position, text
{%
  \pgfmathsetmacro\myradius{#5*#2+(1-#5)*#1}
  \ifthenelse{#3 > #4}{\def\raiseamount{0}}{\def\raiseamount{-0.18 cm}}
  \path[decorate, decoration={text along path, text=#6, text align=center, raise=\raiseamount}]
    (#3:\myradius) arc (#3:#4:\myradius);
}

\begin{document}
\begin{tikzpicture}[scale=1.5,line join=round,line cap=round]
  % radii
  \def\ra{1}
  \def\rb{2}
  \def\rc{3}
  \def\rd{4.5}
  \def\re{5.5}
  % circles
  \foreach\i in {\ra,\rb,\rc,\rd,\re}
  {%
    \draw[thick] (0,0) circle (\i);
  }
  % lines
  \foreach\a/\i in {  0/\rd/,  30/0,    60/\rb,  90/0,   120/\rd, 150/0,%
                    180/\rb,  210/\rd, 240/\ra, 270/\rd, 300/\rd, 330/\rd}
  {%
    \draw[thick] (\a:\i) -- (\a:\re);
  }
  % labels
  \mytext{0}  {\ra}{90}  {30}{0.8}{aaa aa}
  \mytext{0}  {\ra}{150} {90}{0.8}{bbb bb}
  \mytext{0}  {\ra}{150}{390}{0.8}{Hole in the sky} 
  %
  \mytext{\ra}{\rb} {90} {30}{0.5}{dd dd dd}
  \mytext{\ra}{\rb}{150} {90}{0.5}{eee eee}
  \mytext{\ra}{\rb}{150}{240}{0.5}{ff ff ff}
  \mytext{\ra}{\rb}{240}{390}{0.5}{Gateway to heaven}
  %
  \mytext{\rb}{\rc} {60} {30}{0.5}{hh}
  \mytext{\rb}{\rc} {90} {60}{0.5}{ii}
  \mytext{\rb}{\rc}{150} {90}{0.5}{jjjj}
  \mytext{\rb}{\rc}{180}{150}{0.5}{kk kk}
  \mytext{\rb}{\rc}{180}{240}{0.5}{and so on...}
  \mytext{\rb}{\rc}{240}{390}{0.5}{I don't know any more words to put here}
  % example with two lines
  \mytext{\rc}{\rd} {90} {60}{0.7}{Window in time}
  \mytext{\rc}{\rd} {90} {60}{0.3}{Through it I'll fly}
  % and so on
\end{tikzpicture}
\end{document}

EDIT: I added an additional parameter to the macro \mytext to modify the relative position. This (and the scale) allows to put more text in each sector, or to put more than one line. I also adjusted (approximately) the vertical align so the clockwise and anticlockwise texts are at the same height.