Pgfplots and beamer: how to fill the area under a curve with oblique lines (hatching) as a pattern?

Question

This is a follow up question to Jake's solution to that post.

Although I got Jake's solution there work in LaTeX document perfectly fine, I could not get it work in beamer. Here's Jake's code but using beamer:

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{patterns}
\usepackage{pgfplots}

\begin{document}

\begin{frame}
    \begin{tikzpicture}
    \tikzset{
        hatch distance/.store in=\hatchdistance,
        hatch distance=10pt,
        hatch thickness/.store in=\hatchthickness,
        hatch thickness=2pt
    }

    \makeatletter
    \pgfdeclarepatternformonly[\hatchdistance,\hatchthickness]{flexible hatch}
    {\pgfqpoint{0pt}{0pt}}
    {\pgfqpoint{\hatchdistance}{\hatchdistance}}
    {\pgfpoint{\hatchdistance-1pt}{\hatchdistance-1pt}}%
    {
        \pgfsetcolor{\tikz@pattern@color}
        \pgfsetlinewidth{\hatchthickness}
        \pgfpathmoveto{\pgfqpoint{0pt}{0pt}}
        \pgfpathlineto{\pgfqpoint{\hatchdistance}{\hatchdistance}}
        \pgfusepath{stroke}
    }

    \begin{axis}[
        xmin=-4,xmax=4,
        xlabel={z},
        ymin=0,ymax=1,
        axis on top,
        legend style={legend cell align=right,legend plot pos=right}] 
    \addplot[color=red,domain=-4:4,samples=100] {1/sqrt(2*pi)*exp(-x^2/2)};
    \addlegendentry{z}
    \addplot+[mark=none,
        domain=0:1,
        samples=100,
        pattern=flexible hatch,
        area legend,
        pattern color=red]{1/sqrt(2*pi)*exp(-x^2/2)} \closedcycle;
    \addlegendentry{Interval 1}
    \addplot+[mark=none,
        domain=-2:-0.5,
        samples=100,
        pattern=flexible hatch,
        hatch distance=5pt,
        hatch thickness=0.5pt,
        draw=blue,
        pattern color=cyan,
        area legend]{1/sqrt(2*pi)*exp(-x^2/2)} \closedcycle;    
        \addlegendentry{Interval 2}
    \end{axis}
\end{tikzpicture}
\end{frame}
\end{document}

It seems the system never finish compiling. I not sure whether it is just my system or it is a more general problem?

Meanwhile, Marco's solution there does work in beamer.

Please compose a fully compilable MWE that illustrates the problem including the \documentclass and the appropriate packages so that those trying to help don't have to recreate it. — Peter Grill, Jul 25 '12 at 01:20
I've added to your question the example code illustrating the problem; I hope it's OK. — Gonzalo Medina, Jul 25 '12 at 04:35

score 8 · Accepted Answer · answered Jul 25 '12 at 02:36

Simply add the fragile option to the frame:

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{patterns}
\usepackage{pgfplots}

\begin{document}

\begin{frame}[fragile]
    \begin{tikzpicture}
    \tikzset{
        hatch distance/.store in=\hatchdistance,
        hatch distance=10pt,
        hatch thickness/.store in=\hatchthickness,
        hatch thickness=2pt
    }

    \makeatletter
    \pgfdeclarepatternformonly[\hatchdistance,\hatchthickness]{flexible hatch}
    {\pgfqpoint{0pt}{0pt}}
    {\pgfqpoint{\hatchdistance}{\hatchdistance}}
    {\pgfpoint{\hatchdistance-1pt}{\hatchdistance-1pt}}%
    {
        \pgfsetcolor{\tikz@pattern@color}
        \pgfsetlinewidth{\hatchthickness}
        \pgfpathmoveto{\pgfqpoint{0pt}{0pt}}
        \pgfpathlineto{\pgfqpoint{\hatchdistance}{\hatchdistance}}
        \pgfusepath{stroke}
    }

    \begin{axis}[
        xmin=-4,xmax=4,
        xlabel={z},
        ymin=0,ymax=1,
        axis on top,
        legend style={legend cell align=right,legend plot pos=right}] 
    \addplot[color=red,domain=-4:4,samples=100] {1/sqrt(2*pi)*exp(-x^2/2)};
    \addlegendentry{z}
    \addplot+[mark=none,
        domain=0:1,
        samples=100,
        pattern=flexible hatch,
        area legend,
        pattern color=red]{1/sqrt(2*pi)*exp(-x^2/2)} \closedcycle;
    \addlegendentry{Interval 1}
    \addplot+[mark=none,
        domain=-2:-0.5,
        samples=100,
        pattern=flexible hatch,
        hatch distance=5pt,
        hatch thickness=0.5pt,
        draw=blue,
        pattern color=cyan,
        area legend]{1/sqrt(2*pi)*exp(-x^2/2)} \closedcycle;    
        \addlegendentry{Interval 2}
    \end{axis}
\end{tikzpicture}
\end{frame}
\end{document}

enter image description here

score 4 · Answer 2 · answered Jul 25 '12 at 02:37

4

Add [fragile] after \begin{frame}[fragile] It is common for LaTeX-Tikz to hang when code is involved and [fragile] it is omitted.

answered Jul 25 '12 at 02:37

R. Schumacher

9,895

Pgfplots and beamer: how to fill the area under a curve with oblique lines (hatching) as a pattern?

2 Answers2

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