JeT
**Context**

[Marmot's method](https://tex.stackexchange.com/questions/532650/mindmaps-general-method-to-get-regular-harmonious-circle-shape-for-level-3-and)  enables to shape regular mindmaps (see examples below) based on redefinition of the growing cycle. It simplifies everything. I tested it on 30 mindmaps and it's flawless. I use one for each chapter and students find it really useful.

**My question**

The cherry on this beautiful cake would be an automation process to count the nodes at each level.

**How to implement it ?**

"I think that a fully automatic solution will have to go in two runs . In order to know what the various angles should be, one would have to know how many children the later children at the same level have, and then the number of grandchildren and so on. Conceivably one could write the information to the aux file and recover it in the second run."

and then :/

**Examples**

![image.png](/image?hash=7cf5749db2e41e379291c088d796b419cc3d6977b87630b584f0cacfe1732cf6)

![image.png](/image?hash=65321b11763947048b140a91338cb3e3a0a6d962c8299e838bc9d383bf662f2c)

![image.png](/image?hash=468e765462c2c60189610c84cdc3104a21565a8ccd790b5ae16e0e8d42744762)

![image.png](/image?hash=cf86bfaa6bf8389ec8eb0098736d51750d87cf65f765580638cc85a097201b96)

![image.png](/image?hash=7e95069ea8ee5521bae60c046456476c1505648a2366ac76ab7ff99a96e0f3ab)

![image.png](/image?hash=9a13acbc3bb5ef18dd92a1fdcccb187aab49961f23f61b82c6f962c9772af6d6)

**MWE**


\documentclass[tikz,border=3mm]{standalone}

\definecolor{myuniversity}{RGB}{36, 0, 132}

% growCycle

\makeatletter
\newif\ifmmap@debug
\mmap@debugfalse
\newcommand{\mmap@debug@message}[1]{\ifmmap@debug
\typeout{#1}%
\fi}
\newcount\tikzcountchildi
\newcount\tikzcountchildii
\newcount\tikzcountchildiii
\newcount\tikzcountchildiv
\newcount\tikzcountchildv
\tikzcountchildi=0
\tikzcountchildii=0
\tikzcountchildiii=0
\tikzcountchildiv=0
\tikzcountchildv=0
\tikzset{Julien growth/.style={growth function=\tikz@grow@Julien,
mmap/initialize counts},
mmap/.cd,initialize counts/.code={\global\tikzcountchildi=0%
\global\tikzcountchildii=0%
\global\tikzcountchildiii=0%
\global\tikzcountchildiv=0%
\global\tikzcountchildv=0%
}
}

\def\tikz@grow@Julien{%
\pgftransformreset%
\pgftransformshift{\pgfpoint{\pgfkeysvalueof{/tikz/mmap/overall xshift}}%
{\pgfkeysvalueof{/tikz/mmap/overall yshift}}}%
\ifcase\tikztreelevel
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildi}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildii}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildiii}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildiv}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildv}%
\fi
\mmap@debug@message{level=\the\tikztreelevel,%
\the\tikzcountchildi,\the\tikzcountchildii,\the\tikzcountchildiii,
rotation=\pgfutil@tempb,sibling angle=\pgfkeysvalueof{/tikz/sibling angle}}%
\pgftransformrotate{\pgfutil@tempb}%
\pgftransformxshift{\the\tikzleveldistance}%
}
\makeatother

\tikzset{%
mmap/.cd,
name/.initial=undef,
overall rotation/.initial=0,
overall xshift/.initial=0pt,
overall yshift/.initial=0pt,
sign/.initial=1,
child weight/.initial=0.5,
/tikz/.cd,
offset angle/.initial=0, %%% Not exist anymore
Xshift/.style={xshift=#1,mmap/overall xshift=#1},
Yshift/.style={yshift=#1,mmap/overall yshift=#1},
branch color/.style={
concept color=#1!80,ball color=#1!50,
every child/.append style={concept color=#1!50},
}
}

\begin{document}

\def\ShapeAngle{180}				% half circle
\def\Rotation{0}
\def\DistOne{5cm}
\def\DistTwo{8cm}
\def\DistThree{11cm}
\def\OffsetLevelThree{0}

% Part to automate
\def\AngleLevelOne{\ShapeAngle/2}	% 3 nodes 	@ level 1
\def\AngleLevelTwo{\ShapeAngle/8}	% 9 nodes 	@ level 2
\def\AngleLevelThree{\ShapeAngle/17}% 18 nodes 	@ level 3

\begin{tikzpicture}%[node font=\sffamily]
\begin{scope}
[	text width=1.5cm,
align=flush center,
mindmap,Julien growth,
mmap/overall rotation=\Rotation,mmap/sign=1,
every node/.style={concept,circular drop shadow,execute at begin node=\hskip0pt,text=white},
node font=\sffamily,
nodes={concept},
concept color=myuniversity!70,
root concept/.append style={ball color=myuniversity!50, line width=1.5ex,text=white,font=\huge\bfseries\scshape,minimum size=4.5cm,text width=4.5cm,},
level 1/.style={level distance=\DistOne,font=\large,minimum size=2.5cm,text width=2.0cm, sibling angle=\AngleLevelOne},
level 2/.style={level distance=\DistTwo,font=\normalsize,minimum size=1.5cm,text width=1.5cm, sibling angle=\AngleLevelTwo},
level 3/.style={level distance=\DistThree,font=\normalsize,minimum size=1.5cm,text width=1.5cm, sibling angle=\AngleLevelThree,offset angle=\OffsetLevelThree},
]

\node[root concept] {Bonds}
child[branch color=myuniversity] {node {Issuer}
child {node {Risques de crédit}
child {node {Subordination}}
child {node {Rating}}
child {node {Credit spread}}
}
child {node {Type d'émission}
child {node {Standalone}    }
child {node {Program}    	}
}
child {node {Funding}
child {node {Devise}   }
child {node {Maturité} }
child {node {Coupon}   }
}
}
child {node {Cash flow}
child {node {Coupon Fixe}}
child {node {Coupon variable}
child {node {Taux variable}}
child {node {Taux révisable}}
}
child {node {Cancellable}
child {node {Callable}}
child {node {Putable}}
}
}
child[branch color=myuniversity] {node {Pricing}
child {node {Curves}
child {node {Spot}}
child {node {Forwards}}
}
child {node {Modèle}
child {node {Discret}}
child {node {Continue}}
}
child {node {Sensibilités}
child {node {Duration}}
child {node {Convexity}}
}
}
;
\end{scope}
\end{tikzpicture}
\end{document}

**EDIT for an overlap issue I can't spot**


\documentclass[tikz,border=3mm]{standalone}

\definecolor{myuniversity}{RGB}{36, 0, 132}

% growCycle

\makeatletter
\newif\ifmmap@debug
\mmap@debugfalse
\newcommand{\mmap@debug@message}[1]{\ifmmap@debug
\typeout{#1}%
\fi}
\def\tikz@mmap@store@aux#1#2{%
\immediate\write\@mainaux{\string\expandafter\xdef\noexpand\csname pgfk@/tikz/mmap/\pgfkeysvalueof{/tikz/mmap/name}/#1\string\endcsname{#2}}}%
\def\tikz@mmap@get@from@aux#1#2{%
\ifcsname pgfk@/tikz/mmap/\pgfkeysvalueof{/tikz/mmap/name}/#1\endcsname
\edef#2{\csname pgfk@/tikz/mmap/\pgfkeysvalueof{/tikz/mmap/name}/#1\endcsname}%
\else
\edef#2{0}%
\fi
}
\pgfmathdeclarefunction{MMapNodesAtLevel}{1}{%
\tikz@mmap@get@from@aux{n-\@roman{#1}}{\pgfmathresult}}
\newcount\tikzcountchildi
\newcount\tikzcountchildii
\newcount\tikzcountchildiii
\newcount\tikzcountchildiv
\newcount\tikzcountchildv
\newcount\tikzcountchildvi
\tikzcountchildi=0
\tikzcountchildii=0
\tikzcountchildiii=0
\tikzcountchildiv=0
\tikzcountchildv=0
\tikzcountchildvi=0
\tikzset{Julien growth/.style={growth function=\tikz@grow@Julien,
mmap/initialize counts,
/tikz/execute at end scope={%
\tikz@mmap@store@aux{n-i}{\the\tikzcountchildi}%
\tikz@mmap@store@aux{n-ii}{\the\tikzcountchildii}%
\tikz@mmap@store@aux{n-iii}{\the\tikzcountchildiii}%
\tikz@mmap@store@aux{n-iv}{\the\tikzcountchildiv}%
\tikz@mmap@store@aux{n-v}{\the\tikzcountchildv}%
\tikz@mmap@store@aux{n-vi}{\the\tikzcountchildvi}%
}},
mmap/.cd,initialize counts/.code={\global\tikzcountchildi=0%
\global\tikzcountchildii=0%
\global\tikzcountchildiii=0%
\global\tikzcountchildiv=0%
\global\tikzcountchildv=0%
\global\tikzcountchildvi=0%
}
}

\def\tikz@grow@Julien{%
\pgftransformreset%
\pgftransformshift{\pgfpoint{\pgfkeysvalueof{/tikz/mmap/overall xshift}}%
{\pgfkeysvalueof{/tikz/mmap/overall yshift}}}%
\ifcase\tikztreelevel
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildi}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildii}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildiii}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildiv}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildv}%
\fi
\mmap@debug@message{level=\the\tikztreelevel,%
\the\tikzcountchildi,\the\tikzcountchildii,\the\tikzcountchildiii,
rotation=\pgfutil@tempb,sibling angle=\pgfkeysvalueof{/tikz/sibling angle}}%
\pgftransformrotate{\pgfutil@tempb}%
\pgftransformxshift{\the\tikzleveldistance}%
}
\makeatother

\tikzset{%
mmap/.cd,
name/.initial=undef,
overall rotation/.initial=0,
overall xshift/.initial=0pt,
overall yshift/.initial=0pt,
sign/.initial=1,
child weight/.initial=0.5,
/tikz/.cd,
offset angle/.initial=0, %%% Not exist anymore
Xshift/.style={xshift=#1,mmap/overall xshift=#1},
Yshift/.style={yshift=#1,mmap/overall yshift=#1},
branch color/.style={
concept color=#1!80,ball color=#1!50,
every child/.append style={concept color=#1!50},
}
}

\begin{document}

\def\ShapeAngle{360}		%  circle
\def\Rotation{0}
\def\DistOne{5cm}
\def\DistTwo{8cm}
\def\DistThree{12cm}
\def\OffsetLevelThree{0}

\begin{tikzpicture}%[node font=\sffamily]
\begin{scope}
[	text width=1.5cm,
align=flush center,
mindmap,Julien growth,
mmap/overall rotation=\Rotation,mmap/sign=1,
mmap/name=semicirc,%<- you need unique names if you want to use several mindmaps
every node/.style={concept,circular drop shadow,execute at begin node=\hskip0pt,text=black},
node font=\sffamily,
nodes={concept},
concept color=myuniversity!70,
root concept/.append style={ball color=myuniversity!50, line width=1.5ex,text=black,font=\huge\bfseries\scshape,minimum size=4.5cm,text width=4.5cm,},
level 1/.style={level distance=\DistOne,font=\large,minimum size=2.5cm,text width=2.0cm,
sibling angle/.evaluated={\ShapeAngle/max((MMapNodesAtLevel(1)-1),1)}},
level 2/.style={level distance=\DistTwo,font=\normalsize,minimum size=1.5cm,text width=1.5cm,
sibling angle/.evaluated={\ShapeAngle/max((MMapNodesAtLevel(2)-1),1)}},
level 3/.style={level distance=\DistThree,font=\normalsize,minimum size=1.5cm,text width=1.5cm,
sibling angle/.evaluated={\ShapeAngle/max((MMapNodesAtLevel(3)-1),1)},
offset angle=\OffsetLevelThree},
]
\node[root concept] {Programme}
child[branch color=brown] { node {Terme}
child { node {Forward}
child { node {Taylor made} }
child { node {Pricing purposes} }
}
child { node {Futures}
child { node {Listed} }
child { node {Tradable} }
child { node {Main indices}
%			child { node {SX5E} }
%			child { node {SPX} }
%			child { node {VIX} }
%			child { node {Commos} }
}
}
}
child[branch color=green] { node {Swaps}
child { node {IRS}
child { node {Asset Swap} }
child { node {Fix vs floating} }
}
child { node {Fx}
child { node {CCS} }
}
child { node {CDS} node {Equity Swaps}
child { node {Reference assets} }
}
child { node {Equity Swaps}
child { node {All types of pay-off} }
}
}
child[branch color=blue] { node {Options}
child { node {Vanilles}
child { node {Short term} }
child { node {Listed} }
child { node {Calls} }
child { node {Put} }
child { node {Stratégies} }
}
child { node {Exotiques}
child { node {Long term} }
child { node {Asian} }
child { node {KIKO} }
child { node {Lookback} }
child { node {Ladder} }
}
}
child[branch color=pink, text=black] { node {Wrapping}
child { node {SPV}
}
child { node {Funds}
child { node {ETF} }
child { node {Structured funds} }
child { node {OPCVM} }
child { node {Hedge funds} }
}
child { node {Linked Note}
child { node {EMTN} }
child { node {BMTN} }
child { node {Certificates} }
}
}
child[branch color=orange] { node {Structur\'es}
child { node {Capital garanti}
child { node {ZC + call} }
}
child { node {Non garanti}
child { node {Reverse} }
}
child { node {Protégé}
child { node {Reverse airbag} }
}
child { node {Autocall}
child { node {Athéna} }
child { node {Phoenix} }
}
}
;
\end{scope}
\end{tikzpicture}
\end{document}


user 3.14159
It is straightforward to store the information in an aux file, and this had already been done in [this post](https://tex.stackexchange.com/a/539395). You can then read them out with a pgf function, which I called MMapNodesAtLevel. (With these functions one has to be a bit careful, when one tries to define a new function under a name of an existing function, one gets an error. Hence the long name of the function, which makes it less likely that this function is already used by another package or code.) This function has the number of nodes under a level after the first compilation, when this information is retrieved and stored in the aux file. You will want to give the mind maps names with mmap/name in order to have unique numbers per mind map. This makes it possible to have several mind maps in the document for each of which the information gets stored in the aux file. If the information is not known, e.g. because this is the first run or you invoke the function outside the scope in which the name of the mind map is set, the function will return 0. This is why we use

sibling angle/.evaluated={\ShapeAngle/max((MMapNodeAtLevel(1)-1),1)}

which avoids possible problems of division by zero problems in the first run. (In this case there is no such a problem because the denominator is -1 in the first run but generally one may want to be careful with this to avoid unnecessary headache.)

\documentclass[tikz,border=3mm]{standalone}

\definecolor{myuniversity}{RGB}{36, 0, 132}

% growCycle

\makeatletter
\newif\ifmmap@debug
\mmap@debugfalse
\newcommand{\mmap@debug@message}[1]{\ifmmap@debug
\typeout{#1}%
\fi}
\def\tikz@mmap@store@aux#1#2{%
\immediate\write\@mainaux{\string\expandafter\xdef\noexpand\csname pgfk@/tikz/mmap/\pgfkeysvalueof{/tikz/mmap/name}/#1\string\endcsname{#2}}}%
\def\tikz@mmap@get@from@aux#1#2{%
\ifcsname pgfk@/tikz/mmap/\pgfkeysvalueof{/tikz/mmap/name}/#1\endcsname
\edef#2{\csname pgfk@/tikz/mmap/\pgfkeysvalueof{/tikz/mmap/name}/#1\endcsname}%
\else
\edef#2{0}%
\fi
}
\pgfmathdeclarefunction{MMapNodesAtLevel}{1}{%
\tikz@mmap@get@from@aux{n-\@roman{#1}}{\pgfmathresult}}
\newcount\tikzcountchildi
\newcount\tikzcountchildii
\newcount\tikzcountchildiii
\newcount\tikzcountchildiv
\newcount\tikzcountchildv
\newcount\tikzcountchildvi
\tikzcountchildi=0
\tikzcountchildii=0
\tikzcountchildiii=0
\tikzcountchildiv=0
\tikzcountchildv=0
\tikzcountchildvi=0
\tikzset{Julien growth/.style={growth function=\tikz@grow@Julien,
mmap/initialize counts,
/tikz/execute at end scope={%
\tikz@mmap@store@aux{n-i}{\the\tikzcountchildi}%
\tikz@mmap@store@aux{n-ii}{\the\tikzcountchildii}%
\tikz@mmap@store@aux{n-iii}{\the\tikzcountchildiii}%
\tikz@mmap@store@aux{n-iv}{\the\tikzcountchildiv}%
\tikz@mmap@store@aux{n-v}{\the\tikzcountchildv}%
\tikz@mmap@store@aux{n-vi}{\the\tikzcountchildvi}%
}},
mmap/.cd,initialize counts/.code={\global\tikzcountchildi=0%
\global\tikzcountchildii=0%
\global\tikzcountchildiii=0%
\global\tikzcountchildiv=0%
\global\tikzcountchildv=0%
\global\tikzcountchildvi=0%
}
}

\def\tikz@grow@Julien{%
\pgftransformreset%
\pgftransformshift{\pgfpoint{\pgfkeysvalueof{/tikz/mmap/overall xshift}}%
{\pgfkeysvalueof{/tikz/mmap/overall yshift}}}%
\ifcase\tikztreelevel
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildi}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildii}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildiii}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildiv}%
\or
\pgfmathsetmacro{\pgfutil@tempb}{\pgfkeysvalueof{/tikz/mmap/overall rotation}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/offset angle}%
+\pgfkeysvalueof{/tikz/mmap/sign}*\pgfkeysvalueof{/tikz/sibling angle}*\tikzcountchildv}%
\fi
\mmap@debug@message{level=\the\tikztreelevel,%
\the\tikzcountchildi,\the\tikzcountchildii,\the\tikzcountchildiii,
rotation=\pgfutil@tempb,sibling angle=\pgfkeysvalueof{/tikz/sibling angle}}%
\pgftransformrotate{\pgfutil@tempb}%
\pgftransformxshift{\the\tikzleveldistance}%
}
\makeatother

\tikzset{%
mmap/.cd,
name/.initial=undef,
overall rotation/.initial=0,
overall xshift/.initial=0pt,
overall yshift/.initial=0pt,
sign/.initial=1,
child weight/.initial=0.5,
/tikz/.cd,
offset angle/.initial=0, %%% Not exist anymore
Xshift/.style={xshift=#1,mmap/overall xshift=#1},
Yshift/.style={yshift=#1,mmap/overall yshift=#1},
branch color/.style={
concept color=#1!80,ball color=#1!50,
every child/.append style={concept color=#1!50},
}
}

\begin{document}

% you may want to use pgf keys for those (did not change them)
\def\ShapeAngle{180}				% half circle
\def\Rotation{0}
\def\DistOne{5cm}
\def\DistTwo{8cm}
\def\DistThree{11cm}
\def\OffsetLevelThree{0}

% Part to automate

\begin{tikzpicture}%[node font=\sffamily]
\begin{scope}
[	text width=1.5cm,
align=flush center,
mindmap,Julien growth,
mmap/overall rotation=\Rotation,mmap/sign=1,
mmap/name=semicirc,%<- you need unique names if you want to use several mindmaps
every node/.style={concept,circular drop shadow,execute at begin node=\hskip0pt,text=white},
node font=\sffamily,
nodes={concept},
concept color=myuniversity!70,
root concept/.append style={ball color=myuniversity!50, line width=1.5ex,text=white,font=\huge\bfseries\scshape,minimum size=4.5cm,text width=4.5cm,},
level 1/.style={level distance=\DistOne,font=\large,minimum size=2.5cm,text width=2.0cm,
sibling angle/.evaluated={\ShapeAngle/max((MMapNodesAtLevel(1)-1),1)}},
level 2/.style={level distance=\DistTwo,font=\normalsize,minimum size=1.5cm,text width=1.5cm,
sibling angle/.evaluated={\ShapeAngle/max((MMapNodesAtLevel(2)-1),1)}},
level 3/.style={level distance=\DistThree,font=\normalsize,minimum size=1.5cm,text width=1.5cm,
sibling angle/.evaluated={\ShapeAngle/max((MMapNodesAtLevel(3)-1),1)},
offset angle=\OffsetLevelThree},
]
\node[root concept] {Bonds}
child[branch color=myuniversity] {node {Issuer}
child {node {Risques de cr\'edit}
child {node {Subordination}}
child {node {Rating}}
child {node {Credit spread}}
}
child {node {Type d'\'emission}
child {node {Standalone}    }
child {node {Program}    	}
}
child {node {Funding}
child {node {Devise}   }
child {node {Maturit\'e} }
child {node {Coupon}   }
}
}
child {node {Cash flow}
child {node {Coupon Fixe}}
child {node {Coupon variable}
child {node {Taux variable}}
child {node {Taux r\'evisable}}
}
child {node {Cancellable}
child {node {Callable}}
child {node {Putable}}
}
}
child[branch color=myuniversity] {node {Pricing}
child {node {Curves}
child {node {Spot}}
child {node {Forwards}}
}
child {node {Mod\ele}
child {node {Discret}}
child {node {Continue}}
}
child {node {Sensibilit\'es}
child {node {Duration}}
child {node {Convexity}}
}
}
;
\end{scope}
\end{tikzpicture}
\end{document}

![Screen Shot 2021-05-28 at 4.44.57 AM.png](/image?hash=89f20fc9cfecf2b854a29e86c402d202b9936de16429627db740946ebfa6cd4e)

BTW, you set various parameters via \def, I'd use keys for them, also because you could then define styles wich contain a collection of such keys.`

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