[Tex/LaTex] How to draw an unbalanced curly brace in TikZ

tikz-pgf

How can I draw curly braces where the "pinch" is not in the middle of brace, i.e. one of the "legs" is longer than the other, using TikZ?

Best Answer

You can define a style and use the aspect key (which determines the fraction of the total length where the "middle part" of the brace will be) for the brace decoration:

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{decorations.pathreplacing}

\tikzset{
mybrace/.style={decorate,decoration={brace,aspect=#1}}
}
\begin{document}

\begin{tikzpicture}
\draw[mybrace=0.5] (0,0) -- (3,1);
\draw[mybrace=0.75] (0,1) -- (3,2);
\draw[mybrace=0.25] (0,2) -- (3,3);
\end{tikzpicture}

\end{document}

enter image description here

Related Solutions

[Tex/LaTex] Rotate curly brace in tikz

\documentclass[tikz]{standalone}
\usetikzlibrary{decorations.pathreplacing}

\begin{document}

\begin{tikzpicture}
\draw[help lines] (-6,-6) grid (6,6);
\foreach \x in {0,36,72,...,324}
\draw [decorate,decoration={brace,amplitude=10pt},rotate=\x] (0.5,0.5) -- (0.5,5.0);
\end{tikzpicture}
\end{document}

enter image description here

You can also rotate around a point.

\documentclass[tikz]{standalone}
\usetikzlibrary{decorations.pathreplacing}

\begin{document}

\begin{tikzpicture}
\draw[help lines] (-6,-6) grid (6,6);
\foreach \x in {0,36,72,...,324}
\draw [decorate,decoration={brace,amplitude=10pt},rotate around={\x:(0.5,0.5)},=\x] (0.5,0.5) -- (0.5,5.0);
\end{tikzpicture}
\end{document}

enter image description here

[Tex/LaTex] How to draw a curly bracket

You can apply a convenient shift to the coordinates used for the brace:

\documentclass[]{scrartcl}
\usepackage{tikz}
\usetikzlibrary{fit,calc,positioning,decorations.pathreplacing,matrix}

\begin{document}   

\begin{tikzpicture}[decoration={brace}][scale=2] 
\node [draw] (A) {A}; 
\node [fit=(A)] (fit) {};              
\draw [decorate,line width=1pt] 
  ([yshift=-5pt]fit.south west) -- ([yshift=5pt]fit.north west);
\end{tikzpicture}

\end{document}

enter image description here

Your settings for scale=2 won't have any effect since you are using a second optional argument which is not a correct syntax; tikzpicture only admits one optional argument:

\begin{tikzpicture}[<options>]
...
\end{tikzpicture}

where <options> is a comma separated list of options.

It is not clear to me why are you using the fit node; you can use something like this, without this node:

\documentclass[]{scrartcl}
\usepackage{tikz}
\usetikzlibrary{fit,calc,positioning,decorations.pathreplacing,matrix}

\begin{document}   

\begin{tikzpicture}
\node [draw] (A) {A}; 
\draw[decoration={brace,raise=5pt},decorate,line width=1pt] 
  ([yshift=-5pt]A.south west) -- ([yshift=5pt]A.north west);
\end{tikzpicture}

\end{document}

Also, notice that the option scale=2 is not having effect (you would need to add transform shape).

Best Answer

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[Tex/LaTex] Rotate curly brace in tikz

[Tex/LaTex] How to draw a curly bracket

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