How to horizontally align child nodes with the graphdrawing library of TikZ 3.0?

Question

I want to left align the "2222" node with the other nodes on the same level (see MWE below). Is this possible using the graphdrawing library of TikZ 3.0? I could not work it out so far.

\documentclass[tikz,border=10pt]{standalone}
\usetikzlibrary{graphdrawing}
\usetikzlibrary{graphs}
\usegdlibrary{trees}
\begin{document}
\begin{tikzpicture}[>=stealth,every node={align=left}]
\graph [tree layout, grow'=right, fresh nodes, level distance=0.5in,
sibling distance=0.1in]
    {
        4 -> { 
          3 -> { 1 -> { 5, " " }, 2,2 },
          3 -> { 1, 2, 2 },
          3 -> { 1, 2, 2222 }
        } 
    };
\end{tikzpicture}
\end{document}

You should rather put a solution in an answer rather than a question to keep things tidy and make it easy for people to find things. It is fine to answer your own question. — cfr, Jan 12 '16 at 21:43

Zarko · Answer 1 · 2020-12-18T11:28:18.023

8

Instead every node={align=left} in tikzpicture parameters you should say:

every node/.style={anchor=west}

Result:

Upgrade: To my taste, regarding to edited questions, the following solution looks nicer:

\documentclass[tikz,border=10pt]{standalone}
\usetikzlibrary{graphdrawing, graphs}
\usegdlibrary{trees}
\begin{document}
\begin{tikzpicture}[>=stealth,
every node/.style={anchor=west}]            % <---
\graph [tree layout, grow'=right, 
        fresh nodes, level distance=0.5in,
        sibling distance=0.1in
                    ]
    {
        4 -> {
          3 -> { 1 -> { 5, " " }, 2,2 },
          3 -> { 1, 2, 2 },
          3 -> [head anchor=west]{ 1, 2, 2222}  % head anchor=west can be 
                                                % mowed to graph preamble
        }
    };
\end{tikzpicture}
\end{document}

It gives:

Note: MWE should be compiled by LuaLaTeX.

edited Dec 18 '20 at 11:28

answered Jan 12 '16 at 18:31

Zarko

296,517

Thank you very much for your solution. I should have known this! Now I have got a new problem: How can I align the arrow from "3" to "2222" to point to this anchor instead of the node's center? – Simon Jan 12 '16 at 20:46
@SimonSchälli, I'm not sure, if >I understand you correctly. Arrow to node 2222 has different outgoing angle as at nodes 2. This can be compensated by use of 3 -> { 1, 2, 2222[nudge=(up:-2mm)] } instead 3 -> { 1, 2, 2222 }. Try if this gives what you looking for. – Zarko Jan 12 '16 at 21:10
1

You did understand me correctly. Thanks again for your solution. I did just find another possibility. Adding "head anchor=west" to the graph parameters does what I want. I will add this to my original post. – Simon Jan 12 '16 at 21:30
@SimonSchälli, I'm glad that you find solution you liked. I still learn graphs and graphsdriwing ... – Zarko Jan 12 '16 at 21:45
@SimonSchälli Your upgraded solution does not work for me only every node/.style={anchor=west}. I am on TeXLive 2018: pgf 2015/08/07 v3.0.1a (rcs-revision 1.15), tikzlibrarygraphs.code.tex 2015/06/05 v3.0.1a (rcs-revision 1.44). Can you confirm your local style adjustment 3 -> [head anchor=west]{ 1, 2, 2222} still works? – Hotschke May 19 '18 at 16:01

score 2 · Accepted Answer · answered Jan 15 '16 at 13:29

Thanks to Zarko I was able to get a working solution:

\documentclass[tikz,border=10pt]{standalone}
\usetikzlibrary{graphdrawing}
\usetikzlibrary{graphs}
\usegdlibrary{trees}
\begin{document}
\begin{tikzpicture}[>=stealth,every node/.style={anchor=west}]
\graph [tree layout, grow'=right, fresh nodes, level distance=3cm,
sibling distance=2ex, head anchor=west]
    {
        4 -> { 
          3 -> { 1 -> { 5, " " }, 2,2 },
          3 -> { 1, 2, 2 },
          3 -> { 1, 2, 2222 }
        } 
    };
\end{tikzpicture}
\end{document}

gives

How to horizontally align child nodes with the graphdrawing library of TikZ 3.0?

2 Answers2

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