It is a complex problem and unfortunately it has a complex solution. Let's proceed.
Why amplitude setting has no effect. This setting is only used for "manual" connections using style simple connection bar, and in this case you have to specify also the initial and final radii (see p.385 of the manual). When you use instead the mindmap style for the whole tree, a special to path is installed which automatically computes the initial and final radii, and the amplitude. You can only specify angles.
The solution for this problem is to write a variant of the code which computes the radii and amplitude, making them to return a bigger value. But then we have to "install" this code in some way for the mindmap style to use it.
If we modify the code which installs the to path, the change is global for all the mindmap, so we would get all the connections "thick". Even if we install the new to path only for the first level, its effect is global because it applies also to all child levels from the level in which it is installed. So we need to install the code for the first level and uninstall it for subsequent levels.
In order to get shaded connections which fade from the parent color to the child color, tikz uses a special trick. When you set a concept color, the library sets the color of that (child) node, and also installs a code to draw a path from its parent using the style circle connection bar switch color. This style requires one parameter, which is the color of the child node. If we want to install a new code which draws the connection more thick, we have to install it at this point. Thus, this does not depend on the level, but on the use of the key concept color which can happen at any level.
To solve all above problems I devised a solution. It is admittedly ugly and cumbersome but it works, and it is the best I coul do. There is it:
1. New macros to compute the radii and amplitude which produce bigger results
Taken the code from tikzlibrarymindmap.code.tex, I wrote the following macros, whose name ends in @b to differentiate them from the original ones. The code is identical except for the numbers 1.6 and .35 which originally were 1.0 and .175. The new values are somewhat arbitrary. You can play with other values to get the look you like the most.
\def\tikz@compute@circle@radii@b{%
\pgf@process{\pgfpointtransformed{\pgfpointanchor{\tikztostart}{center}}}%
\pgf@xa=\pgf@x%
\pgf@process{\pgfpointtransformed{\pgfpointanchor{\tikztostart}{west}}}%
\advance\pgf@xa by-\pgf@x%
\pgf@xa=1.6\pgf@xa\relax% <<<----- here
\pgfkeys{/pgf/decoration/start radius/.expanded=\the\pgf@xa}%
\pgf@process{\pgfpointtransformed{\pgfpointanchor{\tikztotarget}{center}}}%
\pgf@xa=\pgf@x%
\pgf@process{\pgfpointtransformed{\pgfpointanchor{\tikztotarget}{west}}}%
\advance\pgf@xa by-\pgf@x%
\pgf@xa=1.6\pgf@xa\relax% <<<----- and here
\pgfkeys{/pgf/decoration/end radius/.expanded=\the\pgf@xa}%
}
\def\tikz@compute@segmentamplitude@b{%
\pgf@x=\pgfkeysvalueof{/pgf/decoration/start radius}\relax%
\ifdim\pgf@x>\pgfkeysvalueof{/pgf/decoration/end radius}\relax%
\pgf@x=\pgfkeysvalueof{/pgf/decoration/end radius}\relax%
\fi%
\pgf@x=.35\pgf@x\relax% <<<----- here
\edef\pgfdecorationsegmentamplitude{\the\pgf@x}%
}
2. New styles which "install" and "uninstall" the above macros as part of the computation of the edges.
I define the following two styles, to be used in place of concept color. You have to use thick bar concept color for children which have to be connected with their parent via a thick bar, and standard bar concept color for children which are connected with their parent via a standard thickness bar. Internally these styles redefine the macros used to compute the radii and amplitude, and make the to connection. They are based in style concept color defined in tikzlibrarymindmap.code.tex.
\tikzoption{thick bar concept color}{%
\let\tikz@old@concept@color=\tikz@concept@color%
\let\tikz@old@compute@circle@radii=\tikz@compute@circle@radii%
\let\tikz@compute@circle@radii=\tikz@compute@circle@radii@b%
\let\tikz@old@compute@segmentamplitude=\tikz@compute@segmentamplitude%
\let\tikz@compute@segmentamplitude=\tikz@compute@segmentamplitude@b%
\def\tikz@edge@to@parent@path{
(\tikzparentnode)
to[circle connection bar switch color=from (\tikz@old@concept@color) to (#1)]
(\tikzchildnode)}
\def\tikz@concept@color{#1}%
}
\tikzoption{standard bar concept color}{%
\let\tikz@old@concept@color=\tikz@concept@color%
\let\tikz@compute@circle@radii=\tikz@old@compute@circle@radii%
\let\tikz@compute@segmentamplitude=\tikz@old@compute@segmentamplitude%
\def\tikz@edge@to@parent@path{
(\tikzparentnode)
to[circle connection bar switch color=from (\tikz@old@concept@color) to (#1)]
(\tikzchildnode)}
\def\tikz@concept@color{#1}%
}
3. Use in the mindmap
With the above setup, in your mindmap you have to use thick bar concept color for all nodes at the first level, and standard bar concept color for the remaining levels. In your case it is easy, because you have defined specific styles for the different kind of nodes, so you simply need:
[...]
partner/.style={thick bar concept color=blue!80!black},
air force/.style={standard bar concept color=afcolor},
metadata/.style={standard bar concept color=mdcolor},
nmnd/.style={standard bar concept color=nmndcolor},
nmes/.style={standard bar concept color=nmescolor},
cits/.style={standard bar concept color=citscolor},
[...]
4. All together now
This is the full code and the result:
\documentclass[tikz, preview=true, border=2mm]{standalone}
\renewcommand*\familydefault{\sfdefault}
\usepackage{tikz}
\usetikzlibrary{mindmap,trees,shadows}
\begin{document}
\makeatletter
\def\tikz@compute@circle@radii@b{%
\pgf@process{\pgfpointtransformed{\pgfpointanchor{\tikztostart}{center}}}%
\pgf@xa=\pgf@x%
\pgf@process{\pgfpointtransformed{\pgfpointanchor{\tikztostart}{west}}}%
\advance\pgf@xa by-\pgf@x%
\pgf@xa=1.6\pgf@xa\relax%
\pgfkeys{/pgf/decoration/start radius/.expanded=\the\pgf@xa}%
\pgf@process{\pgfpointtransformed{\pgfpointanchor{\tikztotarget}{center}}}%
\pgf@xa=\pgf@x%
\pgf@process{\pgfpointtransformed{\pgfpointanchor{\tikztotarget}{west}}}%
\advance\pgf@xa by-\pgf@x%
\pgf@xa=1.6\pgf@xa\relax%
\pgfkeys{/pgf/decoration/end radius/.expanded=\the\pgf@xa}%
}
\def\tikz@compute@segmentamplitude@b{%
\pgf@x=\pgfkeysvalueof{/pgf/decoration/start radius}\relax%
\ifdim\pgf@x>\pgfkeysvalueof{/pgf/decoration/end radius}\relax%
\pgf@x=\pgfkeysvalueof{/pgf/decoration/end radius}\relax%
\fi%
\pgf@x=.35\pgf@x\relax%
\edef\pgfdecorationsegmentamplitude{\the\pgf@x}%
}
\tikzoption{thick bar concept color}{%
\let\tikz@old@concept@color=\tikz@concept@color%
\let\tikz@old@compute@circle@radii=\tikz@compute@circle@radii%
\let\tikz@compute@circle@radii=\tikz@compute@circle@radii@b%
\let\tikz@old@compute@segmentamplitude=\tikz@compute@segmentamplitude%
\let\tikz@compute@segmentamplitude=\tikz@compute@segmentamplitude@b%
\def\tikz@edge@to@parent@path{
(\tikzparentnode)
to[circle connection bar switch color=from (\tikz@old@concept@color) to (#1)]
(\tikzchildnode)}
\def\tikz@concept@color{#1}%
}
\tikzoption{standard bar concept color}{%
\let\tikz@old@concept@color=\tikz@concept@color%
\let\tikz@compute@circle@radii=\tikz@old@compute@circle@radii%
\let\tikz@compute@segmentamplitude=\tikz@old@compute@segmentamplitude%
\def\tikz@edge@to@parent@path{
(\tikzparentnode)
to[circle connection bar switch color=from (\tikz@old@concept@color) to (#1)]
(\tikzchildnode)}
\def\tikz@concept@color{#1}%
}
\makeatother
\begin{tikzpicture}
% Define experience colors
\colorlet{afcolor}{blue!50}
\colorlet{mdcolor}{red!75}
\colorlet{nmndcolor}{orange!80}
\colorlet{nmescolor}{teal!70!green}
\colorlet{citscolor}{violet!75}
\begin{scope}[mindmap,
every node/.style={concept, circular drop shadow, minimum size=0pt,execute at begin node=\hskip0pt, font=\bfseries},
root concept/.append style={
concept color=black, fill=white, line width=1.5ex, text=black, font=\huge\scshape\bfseries,},
level 1 concept/.append style={font=\bfseries},
text=white,
partner/.style={thick bar concept color=blue!80!black},
air force/.style={standard bar concept color=afcolor},
metadata/.style={standard bar concept color=mdcolor},
nmnd/.style={standard bar concept color=nmndcolor},
nmes/.style={standard bar concept color=nmescolor},
cits/.style={standard bar concept color=citscolor},
grow cyclic,
level 1/.append style={level distance=6.2cm,sibling angle=45},
level 2/.append style={level distance=3cm,sibling angle=45},
]
\node [root concept] (team) {Team\\Foo}[rotate=202.5] % root
child [partner] { node {Comp 8}
child [nmes] { node {\small NM/ES} }
}
child [partner] { node {Comp 1}
child [metadata] { node {\small Metadata} }
child [air force] { node {\small Air Force} }
child [nmnd] { node {\small NM/ND} }
child [cits] { node {\small CITS} }
child [nmes] { node {\small NM/ES} }
}
child [partner] { node {Comp 2}
child [metadata] { node {\small Metadata} }
}
child [partner] { node (comp3) {Comp 3}
child [air force] { node {\small Air Force} }
child [nmnd] { node {\small NM/ND} }
child [cits] { node (leftmost) {\small CITS} }
child [nmes] { node {\small NM/ES} }
}
child [partner] { node {Comp 4}
child [air force] { node {\small Air Force} }
child [nmes] { node {\small NM/ES} }
}
child [partner] { node {Comp 5}
child [metadata] { node {\small Metadata} }
child [nmnd] { node {\small NM/ND} }
child [nmes] { node {\small NM/ES} }
}
child [partner] { node {Comp 6}
child [air force] { node {\small Air Force} }
child [nmnd] { node {\small NM/ND} }
child [nmes] { node {\small NM/ES} }
}
child [partner] { node {Comp 7}
child [air force] { node {\small Air Force} }
child [nmnd] { node {\small NM/ND} }
child [nmes] { node {\small NM/ES} }
};
\end{scope}
\begin{scope}[xshift=-4.5cm, yshift=-10.5cm,every node/.style={text=black}]
\matrix[row sep=0pt,column sep=1mm, nodes={anchor=west}] {
\fill [afcolor] (0,.25ex) circle (1ex); & \node{Air Force Experience};\\
\fill [mdcolor] (0,.25ex) circle (1ex); & \node{Metadata Environments Development Experience};\\
\fill [nmndcolor] (0,.25ex) circle (1ex); & \node{Network Management and Network Defense Experience};\\
\fill [nmescolor] (0,.25ex) circle (1ex); & \node{Network Management and Enterprise Services Experience};\\
\fill [citscolor] (0,.25ex) circle (1ex); & \node{CITS Information Transport Systems Experience};\\
};
\end{scope}
\end{tikzpicture}
\end{document}
5. A word of caution
All the above is an ugly hack, and modifies macros internally used by tikz, so it will probably break with a newer version of the library. My code was tested with the version which comes with Texlive 2012 (which apparently is v 1.9 2009/11/12 of the file tikzlibrarymindmap.code.tex).
Edit
The answer is (again) YES as long as you bring enough \if with you.
\documentclass[tikz,border=9]{standalone}
\usetikzlibrary{mindmap}
\usepackage{xspace}
\definecolor{joli}{RGB}{225,95,0}
\definecolor{JOLI}{RGB}{225,95,0}
\newcommand\etoc{\textcolor{joli}{\ttfamily\bfseries etoc}\xspace}
\DeclareRobustCommand\csa[1]{{\ttfamily\hyphenchar\font45 \char`\\ #1}}
\newcount\tikznumberofcurrentgrandchild
\def\tikzretangulargroth{%
\pgftransformreset
\ifnum\tikztreelevel=1
\pgftransformrotate{55+((\pgfkeysvalueof{/tikz/sibling angle})*(\tikznumberofcurrentchild)}%
\pgftransformxshift{\the\tikzleveldistance}%
\fi
\ifnum\tikztreelevel=2
\pgfmathsetmacro\tikzoffsetofcurrentchild{(\tikzsiblingdistance)*(\tikznumberofcurrentgrandchild)}%
\ifdim\tikzoffsetofcurrentchild pt<\tikzlevelwidth pt
\pgftransformxshift{\tikzlevelwidth/2-\tikzoffsetofcurrentchild}
\pgftransformyshift{\tikzlevelheight/2}
\else
\pgfmathsetmacro\tikzoffsetofcurrentchild{\tikzoffsetofcurrentchild-\tikzlevelwidth}%
\ifdim\tikzoffsetofcurrentchild pt<\tikzlevelheight pt
\pgftransformxshift{-\tikzlevelwidth/2}
\pgftransformyshift{\tikzlevelheight/2-\tikzoffsetofcurrentchild}
\else
\pgfmathsetmacro\tikzoffsetofcurrentchild{\tikzoffsetofcurrentchild-\tikzlevelheight}%
\ifdim\tikzoffsetofcurrentchild pt<\tikzlevelwidth pt
\pgftransformxshift{-\tikzlevelwidth/2+\tikzoffsetofcurrentchild}
\pgftransformyshift{-\tikzlevelheight/2}
\else
\pgfmathsetmacro\tikzoffsetofcurrentchild{\tikzoffsetofcurrentchild-\tikzlevelwidth}%
\ifdim\tikzoffsetofcurrentchild pt<\tikzlevelheight pt
\pgftransformxshift{\tikzlevelwidth/2}
\pgftransformyshift{-\tikzlevelheight/2+\tikzoffsetofcurrentchild}
\fi\fi\fi\fi
\global\advance\tikznumberofcurrentgrandchild by1
\fi
}
\tikzset{
branch color/.style={
concept color=#1!white,
every child/.append style={concept color=#1!white!30!white},
},
level width/.store in=\tikzlevelwidth,
level height/.store in=\tikzlevelheight
}
\begin{document}
\tikznumberofcurrentgrandchild=0
\begin{tikzpicture}[
mindmap,
growth function=\tikzretangulargroth,
nodes={concept},
concept color=orange!60,
root concept/.append style={font=\huge, minimum size=5.5cm},
level 1/.append style={level distance=6.5cm, sibling angle=360/8},
level 1 concept/.append style={font=\Large,minimum size=4cm},
level 2/.append style={level width=20cm,level height=28.7cm, sibling distance=2.77cm},
% A4 paper with margin=.5cm
]
\node [root concept]{The \etoc package}
child [branch color=teal!60]{node {I Overview}
child {node {3 Do I need to be a geek to use {\color {joli}\ttfamily \bfseries etoc}\xspace ?}}
child {node {4 Line styles and toc display style}}
child {node {5 A first example}}
child {node {6 A second example}}
child {node {7 Linked list of the main package commands}}
}
child [branch color=yellow!80]{node {II Arbitrarily many TOCs, and local ones too}
child {node {8 Labeling and reusing elsewhere}}
child {node {9 A powerful functionality of {\color {joli}\ttfamily \bfseries etoc}\xspace : the re-assignment of levels with \csa {etocsetlevel}}}
child {node {10 The \csa {etoc\discretionary {-}{}{}set\discretionary {-}{}{}toc\discretionary {-}{}{}depth} and \csa {etoc\discretionary {-}{}{}set\discretionary {-}{}{}next\discretionary {-}{}{}toc\discretionary {-}{}{}depth} commands}}
child {node {11 The command \csa {etoc\discretionary {-}{}{}set\discretionary {-}{}{}toc\discretionary {-}{}{}dep\discretionary {-}{}{}th.toc}}}
child {node {12 The commands \csa {etoc\discretionary {-}{}{}depth\discretionary {-}{}{}tag.toc} and \csa {etocsettagdepth}}}
child {node {13 Adding commands to the \texttt {.toc} file}}
child {node {14 Two Examples}}
}
child [branch color=green!50]{node {III Surprising uses of {\color {joli}\ttfamily \bfseries etoc}\xspace }
child {node {15 The TOC of TOCs}}
child {node {16 Arbitrary ``Lists Of...'', \csa {etoctoccontentsline}}}
child {node {17 A TOC with a fancy layout}}
child {node {18 Another compatibility mode}}
child {node {19 The TOC as a tree}}
child {node {20 The TOC as a molecule}}
child {node {21 The TOC as a TikZ Mindmap}}
child {node {22 The TOC as a table}}
}
child [branch color=teal!60]{node {IV Commands for the toc line styles}
child {node {23 The \csa {etocsetstyle} command}}
child {node {24 The \csa {etocsetlevel} command}}
child {node {25 Scope of commands added to the \texttt {.toc} file}}
child {node {26 Am I also red?}}
}
child [branch color=yellow!80]{node {V Commands for the toc display style}
child {node {27 Specifying the toc display style}}
child {node {28 Starred variants of the \csa {tableofcontents} etc... commands}}
child {node {29 Table of contents for this part}}
}
child [branch color=green!50]{node {VI Using and customizing {\color {joli}\ttfamily \bfseries etoc}\xspace }
child {node {30 Summary of the main style commands}}
child {node {31 The package default line styles: \csa {etocdefaultlines}}}
child {node {32 Customizing {\color {joli}\ttfamily \bfseries etoc}\xspace }}
child {node {33 One more example of colored TOC layout}}
}
child [branch color=teal!60]{node {VII Tips}
child {node {34 ... and tricks}}
}
child [branch color=yellow!80]{node {VIII The code}
child {node {35 Timestamp}}
child {node {36 Change history}}
child {node {37 Implementation}}
}
;
\end{tikzpicture}
\end{document}
Old Answer
The answer is YES as long as you write your own growth function. The following example, though not rectangular, illustrates some ideas.
\tikz@grow@concentric is defined and hooked by
growth function=\tikz@grow@concentric- Using
\pgftransformreset and some supporting variables, a node could be at anywhere we want. In this case, level-2 concepts are aligned along a circle. This suggest that somehow their position do not (only) depend on their parents'.
- I define
branch color so we can assign the level-1 and level-2 concept color in just one step.
The drawbacks are
TikZ does not count children/descendants for you. It typesets parents first. So sibling angle=360/23 is assigned by hand.
Also you need to give the correct number of children in every branch by noc=5. (NOC stands for number of children)
\tikz@grow@concentric is designed for 2-level mind map. More variables and more if-statements are demanded for more levels.- The yellow part looks weird. I do not know why.
Code
\documentclass[tikz,border=9]{standalone}
\usetikzlibrary{mindmap,decorations}
\usepackage{xspace}
\definecolor{joli}{RGB}{225,95,0}
\definecolor{JOLI}{RGB}{225,95,0}
\newcommand\etoc{\textcolor{joli}{\ttfamily\bfseries etoc}\xspace}
\DeclareRobustCommand\csa[1]{{\ttfamily\hyphenchar\font45 \char`\\ #1}}
\makeatletter
\newcount\tikzcountgrandchild
\def\tikz@grow@concentric{%
\pgftransformreset%
\pgftransformrotate{(\pgfkeysvalueof{/tikz/sibling angle})*(\tikzcountgrandchild)}%
\ifnum\tikztreelevel=1
\pgftransformrotate{(\pgfkeysvalueof{/tikz/sibling angle})*(\pgfkeysvalueof{/tikz/noc}-1)/2}%
\fi
\pgftransformxshift{\the\tikzleveldistance}%
\ifnum\tikztreelevel=2
\global\advance\tikzcountgrandchild by1
\fi
}
\tikzset{
noc/.initial=0,
branch color/.style={
concept color=#1!white,
every child/.append style={concept color=#1!white!30!white},
}
}
\begin{document}
\begin{tikzpicture}[text width=2cm,align=flush center,
mindmap,growth function=\tikz@grow@concentric,
sibling angle=360/23,nodes={concept},concept color=orange!60,
level 1/.style={level distance=10cm},
level 2/.style={level distance=16cm}
]
\node{\textbf{The \etoc documentation}}
child[noc=5,branch color=teal!60]{node{I. Overview}
child{node{3 Do I need to be a geek to use{\color{joli}\ttfamily \bfseries etoc}\xspace ?}}
child{node{4 Line styles and toc display style}}
child{node{5 A first example}}
child{node{6 A second example}}
child{node{7 Linked list of the main package commands}}
}
child[noc=0,branch color=yellow!80]{node{II. Arbitrarily many TOCs, and local ones too}
}
child[noc=7,branch color=green!50]{node{III. Surprising uses of{\color{joli}\ttfamily \bfseries etoc}\xspace }
child{node{15 The TOC of TOCs}}
child{node{16 Arbitrary ``Lists Of...'', \csa{etoctoccontentsline}}}
child{node{17 A TOC with a fancy layout}}
child{node{18 Another compatibility mode}}
child{node{19 The TOC as a tree}}
child{node{21 The TOC as a TikZ Mindmap}}
child{node{22 The TOC as a table}}
}
child[noc=0,branch color=teal!60]{node{IV. Commands for the toc line styles}
}
child[noc=3,branch color=yellow!80]{node{V. Commands for the toc display style}
child{node{27 Specifying the toc display style}}
child{node{28 Starred variants of the \csa{tableofcontents} etc... commands}}
child{node{29 Table of contents for this part}}
}
child[noc=4,branch color=green!50]{node{VI. Using and customizing{\color{joli}\ttfamily \bfseries etoc}\xspace }
child{node{30 Summary of the main style commands}}
child{node{31 The package default line styles: \csa{etocdefaultlines}}}
child{node{32 Customizing{\color{joli}\ttfamily \bfseries etoc}\xspace }}
child{node{33 One more example of colored TOC layout}}
}
child[noc=1,branch color=teal!60]{node{VII. Tips}
child{node{34 ... and tricks}}}
child[noc=3,branch color=yellow!80]{node{VIII. The code}
child{node{35 Timestamp}}
child{node{36 Change history}}
child{node{37 Implementation}}
}
;
\end{tikzpicture}
\end{document}
Best Answer
You can set the node size by using the parameters
in place of your
node widthparameter and entering the desired value instead of<dimension>. Note that the actual size of the node will be larger thandimensionby the values forinner sepandline width.