Is there an elegant way to simulate a handdrawn explosion as shown in the following image using tikz?
[Tex/LaTex] TiKZ: “hand-drawn” explosion
funtikz-pgftikz-shape
Related Solutions
I'm posting this just because you mentioned specifically the lines.
I modified the bent decoration to make it look like more of a hand drawing. It truly has problems and you can't use it on curves for now... well you can but the result is unexpected at the least.
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{calc,decorations.pathmorphing,patterns}
\makeatletter
\pgfdeclaredecoration{penciline}{initial}{
\state{initial}[width=+\pgfdecoratedinputsegmentremainingdistance,auto corner on length=1mm,]{
\pgfpathcurveto%
{% From
\pgfqpoint{\pgfdecoratedinputsegmentremainingdistance}
{\pgfdecorationsegmentamplitude}
}
{% Control 1
\pgfmathrand
\pgfpointadd{\pgfqpoint{\pgfdecoratedinputsegmentremainingdistance}{0pt}}
{\pgfqpoint{-\pgfdecorationsegmentaspect\pgfdecoratedinputsegmentremainingdistance}%
{\pgfmathresult\pgfdecorationsegmentamplitude}
}
}
{%TO
\pgfpointadd{\pgfpointdecoratedinputsegmentlast}{\pgfpoint{1pt}{1pt}}
}
}
\state{final}{}
}
\makeatother
\begin{document}
\begin{tikzpicture}[decoration=penciline]
\draw[decorate,style=help lines] (-2,-2) grid[step=1cm] (4,4);
\draw[decorate,thick] (0,0) -- (0,3) -- (3,3);
\draw[decorate,ultra thick,blue] (3,3) arc (0:-90:2cm); %% This is supposed to be an arc!!
\draw[decorate,thick,pattern=north east lines] (-0.4cm,-0.8cm) rectangle (1.2,-2);
\node[decorate,draw,inner sep=0.5cm,fill=yellow,circle] (a) at (2,0) {}; %% That's not even an ellipse !!
\node[decorate,draw,inner sep=0.3cm,fill=red] (b) at (2,-2) {};
\draw[decorate] (b) to[in=-45,out=45] (a); %% This was supposed to be an edge!!
\node[decorate,draw,minimum height=2cm,minimum width=1cm] (c) at (-1.5,0) {};
\draw[decorate,->,dashed] (-0.5cm,-0.5cm) -- (-0.5cm,3.5cm) -| (c.north);
\end{tikzpicture}
\end{document}
Here is the output:
I'm currently studying the markings decorations to see how one can move along a path without giving explicit coordinates on the curve. That would hopefully make it possible to use it on arcs. Note that the background grid is also decorated :)
Here is a quick one: I've used the decoration that Forkrul Assail linked to and basically it's going back and forth between the corners just as you would do to hatch. However it's not really following the outer contour and you can make it more detailed if you define this as a genuine decoration following precisely the shape border. I didn't do it because I think Inkscape or something similar is much easier to perform this and I doubt that it is worth automating. Nevertheless the idea is essentially the same for the decoration anyhow.
Also much to my surprise the line join option is really showing a difference.
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric,calc,positioning,decorations}
\makeatletter
\pgfdeclaredecoration{penciline}{initial}{
\state{initial}[width=+\pgfdecoratedinputsegmentremainingdistance,auto corner on length=1mm,]{
\pgfpathcurveto%
{% From
\pgfqpoint{\pgfdecoratedinputsegmentremainingdistance}
{\pgfdecorationsegmentamplitude}
}
{% Control 1
\pgfmathrand
\pgfpointadd{\pgfqpoint{\pgfdecoratedinputsegmentremainingdistance}{0pt}}
{\pgfqpoint{-\pgfdecorationsegmentaspect\pgfdecoratedinputsegmentremainingdistance}%
{\pgfmathresult\pgfdecorationsegmentamplitude}
}
}
{%TO
\pgfpointadd{\pgfpointdecoratedinputsegmentlast}{\pgfpoint{1pt}{1pt}}
}
}
\state{final}{}
}
\makeatother
\begin{document}
\begin{tikzpicture}[decoration={penciline,amplitude=2pt}]
\node[regular polygon,regular polygon sides=3,minimum height=2cm,draw] (a) {};
\node[below= 0.5cm of a] {\textsc{Working Copy}};
\draw[blue,opacity=0.3,decorate,line width=1mm,line join=round] (a.corner 3)
\foreach \x[remember=\x as \lastx(initially 0)] in {0.07,0.15,...,1.1}{
-- ($(a.corner 1)!\lastx!(a.corner 2)$) --($(a.corner 3)!\lastx+0.05!(a.corner 2)$)
}--(a.corner 2);
\node[cylinder, shape border rotate=90, aspect = 0.65,draw,
minimum height=1.7cm,minimum width=1.5cm] (b) at (4cm,0.2cm) {};
\node[below= 0.45cm of b] {\textsc{Copying Work}};
\draw[red,opacity=0.3,decorate,line width=0.9mm,line join=bevel] (b.after top)
\foreach \x[remember=\x as \lastx(initially 0)] in {0.1,0.2,...,1.1}{
-- ($(b.after top)!\lastx!(b.before bottom)$) --($(b.after top)!\lastx+0.05!(b.before top)$)
} --(b.before bottom)
\foreach \x[remember=\x as \lastx(initially 0)] in {0.1,0.2,...,1.1}{
-- ($(b.before bottom)!\lastx!(b.after bottom)$) -- ($(b.before top)!\lastx+0.05!(b.after bottom)$)
};
\end{tikzpicture}
\end{document}
Best Answer
There's the
starburstshape in theshapes.symbolslibrary:The code:
Or a more colorful version:
Update
Where would the fun be without an animation?
The code:
The animation was produced thriugh ImageMagick running in a terminal