[Tex/LaTex] Text Wrapping in tikz node doesn’t work

tikz-pgf

I would like have a few fixed nodes of size 1cm x 1cm.
However, the text inside these nodes should wrap around.

I used the following questions help to figure out about wrapping text.
However it doesn't seem to work.

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[node distance=1.75cm,auto   , font=\small]

\tikzstyle{block}=[draw, fill=white, text width=1cm, anchor=west,  minimum height=1cm]

 \node [block] [minimum width=1.5cm, minimum height=1.5cm,align=center] (mb0) {MB};
 \node [block] [right of=mb0] (dmem0) {dmem};
 \node [block] [left of=mb0] (imem0) {imem};
 \node [block] [below of=mb0,align=left] (cmemin0) {cmem\_in};
 \node [block] [right of=cmemin0] (dma0) {DMA};
 \node [block] [right of=dma0] (cmemout0) {cmem\_out};

\end{tikzpicture}
\end{document}

However you can see in the picture that the text flows outside the box
instead of wrapping around.
enter image description here

How do I resolve this situation?

Thanks !

Best Answer

So, several problems are stacking in your case.

First, the hyphenation engine cannot guess what is a correct hyphenation for a word like cmem_in. I am not even sure there is such a correct hyphenation.

In this case, you need to marks the points where the break is allowed with \-.

Second, even for "not so strange" words, like "averylonglongstring", the hyphenation does not happen. The reason is given in this question: the first word of a paragraph is not hyphenated by design.

A suggested workaround is to use \hspace{0pt} before such words. Note that in the MWE, longstring still flows out of the box, that's because it is a "strange word" again.

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[node distance=1.75cm,auto   , font=\small]

  \tikzstyle{block}=[draw, fill=white, text width=1cm, anchor=west,  minimum height=1cm]

  \node [block] [minimum width=1.5cm, minimum height=1.5cm,align=center] (mb0) {MB};
  \node [block] [right of=mb0] (dmem0) {dmem};
  \node [block] [left of=mb0,align=left] (imem0) {averylonglongstring};
  \node [block] [below of=mb0,align=left] (cmemin0) {cmem\-\_in};
  \node [block] [right of=cmemin0,align=left] (dma0) {\hspace{0pt}averylonglongstring};
  \node [block] [right of=dma0,align=left,text width=1.5cm] (cmemout0) {cmem\-\_out};

\end{tikzpicture}
\end{document}

enter image description here

Related Solutions

[Tex/LaTex] How to define the default vertical distance between nodes

I don't really get the question so I hope this is what you wanted. If you include a full document (such that we copy paste and see the problem on our systems) things are much more easier.

Here, you can change the default setting within a scope but your block style had a node distance which was resetting every time it is issued. I've made it 2mm such that we can see the difference easier.

\documentclass[tikz]{standalone}
\usetikzlibrary{arrows,shapes.geometric,positioning}

\begin{document}
\begin{tikzpicture}[decision/.style={diamond, draw, text width=4.5em, text badly centered, node distance=3.5cm, inner sep=0pt},
                    block/.style   ={rectangle, draw, text width=6em, text centered, rounded corners, minimum height=4em, minimum height=2em},
                    cloud/.style   ={draw, ellipse, minimum height=2em},
                    line/.style    ={draw,-latex'},
                    node distance = 1cm, 
                    auto]
    \node [block] (1st) {1st};
    \node [block, right= of 1st]  (2nd1) {2nd1};
\begin{scope}[node distance=2mm and 10mm]%Here we change it for everything inside this scope
    \node [block, above= of 2nd1] (2nd2) {2nd2};
    \node [block, below= of 2nd1] (2nd3) {2nd3};
    \node [block, right= of 2nd1] (3rd1) {3rd1};
    \node [block, above= of 3rd1] (3rd2) {3rd2};
    \node [block, above= of 3rd2] (3rd3) {3rd3};
\end{scope}
    \node [block, below= of 3rd1] (3rd4) {3rd4};
    \node [block, below= of 3rd4] (3rd5) {3rd5};

    \path [line] (1st) -- (2nd1);
    \path [line] (2nd1) -- (2nd2);
    \path [line] (2nd1) -- (2nd3);
    \path [line] (2nd2) -- (3rd3);
    \path [line] (2nd1) -- (3rd1);
    \path [line] (1st) -- (2nd1);
\end{tikzpicture}
\end{document}

enter image description here

[Tex/LaTex] Tikz : node filling with text

The vertical filling you can do when you measure height with the help of \pgfgetlastxy:

Code

\documentclass[parskip]{scrartcl}
\usepackage[margin=15mm]{geometry}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usepackage[scaled]{helvet}
\renewcommand*\familydefault{\sfdefault} %% Only if the base font of the document is to be sans serif
\usepackage[T1]{fontenc}

\newcommand{\computeheight}[2]% name of node, name of targetmacro
{ \path (#1.south west);
  \pgfgetlastxy{\xsw}{\ysw}
  \path (#1.north east);
  \pgfgetlastxy{\xne}{\yne}
  %\pgfmathsetlengthmacro{\nodewidth}{\xne-\xsw}% not needed here
  \pgfmathsetlengthmacro{\nodeheight}{\yne-\ysw}
  %\xdef\widthofnode{\nodewidth}
  \expandafter\xdef\csname #2\endcsname{\nodeheight}
}

\begin{document}

\begin{tikzpicture} [remember picture,overlay]
  \node[right](name)[align = left, inner sep = 2pt] {\fontsize{42pt}{0pt}\selectfont{My Name} \\
  \fontsize{20}{5pt}\selectfont{My function}};

    % get height of node "name"
  \computeheight{name}{nameheight}

  \draw (name.north west) -- +(18cm, 0);
  \draw (name.south west) -- +(18cm, 0);

    % helper coordinate
    \coordinate[right=5.0cm of name.north east, anchor=north west] (about);
    % the data you want to use; the {} is for protecting commas in the entries,
    % so it's not neccessary here
    \foreach \t [count=\c] in {{mymail@mail.com},{+45 555 555},{my adress},{zipcode City}}
    {   \pgfmathsetlengthmacro{\topdistance}{(\c-1)*\nameheight/4+\nameheight/4*0.5}
        \node[below=\topdistance of about,align=left,anchor=west] (about\c) {\fontsize{12pt}{12pt}\selectfont{\t}};
    }
\end{tikzpicture}

\end{document}

Output

enter image description here

Best Answer

Related Solutions

[Tex/LaTex] How to define the default vertical distance between nodes

[Tex/LaTex] Tikz : node filling with text

Code

Output

Related Question