tikz-qtree | Several Lines per Node

[Laurentius]

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\documentclass{article}
    \usepackage{tikz}
    \usepackage{tikz-qtree}
    \begin{document}
    \noindent\makebox[\textwidth]{
    \begin{tikzpicture}
    \tikzset{edge from parent/.style=
    {draw,
    edge from parent path={(\tikzparentnode.south)
    -- +(0,-8pt)
    -| (\tikzchildnode)}}}
    \tikzset{every tree node/.style={align=center,anchor=north}}
    \tikzset{level distance=40pt}%,sibling distance=0pt}
    \baselineskip=0pt
    \Tree [ .{a} [ .{x} {b,\\c} [ .{d\\f\\g\\h}
       [ .{d} {d} {f} ] [ .{g} {d}
       \node(pr){gs}; ] ] ] [ .{dsfg} \node(lgst){asdf};  
       {sdg} ] ]
    \draw[<-] (pr)..controls +(east:1) and +(south:1) .. (lgst);
    \end{tikzpicture}}
    \end{document}

Here, several lines per node is allowed by
\tikzset{style={align=center,anchor=north}}
but this messes up the tree (the length of the branches).
Can this be remedied?

[Stefan_K]

You could apply the style locally, where needed.

I would define a multi-line style, so it's easier to adjust and better readable in the tree code:

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\tikzset{multiline/.style={align=center,anchor=north}}

In the tree, you can write the node with this style, where needed, such as

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... [ .\node [multiline] {d\\f\\g\\h}; [ ...

Furthermore, you probably need to adjust the level distance, because multi-line nodes are higher.

Stefan

[Laurentius]

It seems impossible to change the level distance for individual nodes inside the tree.

[Laurentius]

It seems impossible to change the level distance for individual nodes inside the tree.

Here is a better example:

Code: Select all  •  Open in writeLaTeX

\documentclass{article}
\usepackage{tikz}
\usepackage{tikz-qtree}
\begin{document}
\noindent\makebox[\textwidth]{
\begin{tikzpicture}
\tikzset{edge from parent/.style=
        {draw,
        edge from parent path={(\tikzparentnode.south)
                -- +(0,-8pt)
                -| (\tikzchildnode)
                }
        }
}
\tikzset{align=center,level distance=45}
\Tree
[ .{psyche}
        [ .{alogon}
                {threptikon,\\phytikon}
                [ .{(echon pos)\\orektikon}
                        [ .{para}
                                {epithymetikon} {thymetikon}
                        ]
                        [ .{echon pos,\\akoustikon}
                                {bouleutikon} \node(pr){proairektikon,\\hegemonikon};
        ]       ]       ]
        [ .{echon}
                \node(lgst){logistikon,\\bouleutikon}; {epistemonikon}
]       ]
\draw[<-] (pr)..controls +(south east:3) and +(south:1) .. (lgst)
        node[midway,right]{bouleuton,\\proaireton\\(pros ta tele)};
\end{tikzpicture}}
\end{document}

[Laurentius]

Perhaps the problem could be solved if the new lines could be added below the first instead of above it, but I don't know if this is possible -- ?

[Stefan_K]

David Chiang and Andrew Stacey have improved the tikz-qtree package. Now it's possible to define level based styles, such as level distance and sibling distance. You can try if you add to your code:

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\tikzset{level 1/.style={level distance=30pt}}
\tikzset{level 2/.style={level distance=40pt, sibling distance=20pt}}
\tikzset{level 3+/.style={level distance=40pt, sibling distance=10pt}}

Here you can see the result with different distances:

TikZ qtree

tree.png (13.75 KiB) Viewed 1412 times

You just need to update your package. The new features are documented in the up-to-date tikz-qtree manual, in 3.3 Node placement styles.

Stefan

[Laurentius]

Wunderbar! Besten Dank!

L.