# Example: Poster with TikZ

Published 2015-10-30 | Author: Stefan Kottwitz

We know for example informational or scientific posters seen at conferences or at walls in universities or institutes.

They mostly have certain characteristics in common:

• They have a large size, such as A2, A1 or even A0.
• People may look at them from far away, but also from a very close distance.

In consequence, we got some requirements for typesetting:

• Page layout dimensions should work with such a big size.
• We need a wide range of font sizes. We should be able to read while standing close, but we also need large catchy headings.
• The poster should be partitioned into digestible blocks. Specifically, each block should not exceed the usual line width we know from body texts. Also here applies, that too wide lines would make it hard to focus and to skip back to the start of the next line. So, lines in blocks should not be much wider than about 40 or 50 characters long.
• Blocks should have distinct headings.
• Graphical elements such as colors and lines can be used to divide in parts.
• Images should be vector graphics or should have a high resolution.

Here, we would like to create a poster of A0 size in landscape orientation. It shall show some blocks containing dummy text as place holder, math, and images. As sample images, we will take fractals which I made for http://texample.net, and a plot and a geometry drawing from Chapter 10, Advanced Mathematics. In the book, we included the images as files. Here, we create them completely within the poster document, to have a single self-contained document. You can later replace the dummy text and other parts by your own content.

We will use the tikzposter class. The document is structured in columns and blocks.

You can change the number of samples in the plot for a higher resolution. Raise the order of the fractals to get finer fractals, in that case reduce the scaling factor at the same time. Well, it's just a poster demonstration.

You can click "Open in online editor" below to open the example directly within the Overleaf LaTeX editor. If you would get a timeout, fractals and plot may take too long to compile. I used a low sample number for that purpose, it compiled for me with Overleaf when I clicked the link.

The code is explained in the LaTeX Cookbook, Chapter 1, The Variety of Document Classes, Creating a poster. Plots and geometry drawing are explained in Chapter 10, Advanced mathematics, and are also available in this gallery.

% Poster with TikZ
% Author: Stefan Kottwitz
% https://www.packtpub.com/hardware-and-creative/latex-cookbook
\documentclass[landscape]{tikzposter}
\usetheme{Wave}
\usepackage{pgfplots}% for the 3D plot
\usepackage{tkz-euclide}% for geometry
\usetkzobj{all}
\usepackage{lipsum}% for dummy text
\usepackage{multicol}% for multiple columns
\pgfdeclarelindenmayersystem{Koch curve}{
\rule{F -> F-F++F-F}}
\pgfdeclarelindenmayersystem{Sierpinski triangle}{
\rule{F -> G-F-G}
\rule{G -> F+G+F}}
\pgfdeclarelindenmayersystem{Fractal plant}{
\rule{X -> F-[[X]+X]+F[+FX]-X}
\rule{F -> FF}}
\pgfdeclarelindenmayersystem{Hilbert curve}{
\rule{L -> +RF-LFL-FR+}
\rule{R -> -LF+RFR+FL-}}
\setlength{\columnsep}{4cm}
\setlength{\columnseprule}{1mm}
\newcommand*{\image}[2][]{% For conveniently including images
\begin{tikzfigure}[#1]
\includegraphics[width=\linewidth]{#2}
\end{tikzfigure}}
\usepackage{lmodern}
\renewcommand*{\familydefault}{\sfdefault}% Let's have a sans serif font
\begin{document}
\title{\LaTeX\ in Use}
\author{John Doe}
\maketitle
\begin{columns}
\column{.65}
\block{Fractals in \LaTeX}{
\lipsum[1]
%\image[\LaTeX\ workflow]{flowchart}% if external
[l-system={Koch curve, step=2pt, angle=60, axiom=F++F++F, order=4}]
lindenmayer system -- cycle;\hfill
draw=blue!80!black] [l-system={Sierpinski triangle, step=2pt,
angle=60, axiom=F, order=8}] lindenmayer system -- cycle;\hfill
draw=red!80!black][l-system={Hilbert curve, axiom=L, order=5,
step=8pt, angle=90}] lindenmayer system; \hfill
\tikz\draw [green!50!black, rotate=90,scale=1]
[l-system={Fractal plant, axiom=X, order=6, step=2pt, angle=25}]
lindenmayer system;\hfill
}
\begin{subcolumns}
\subcolumn{.5}
\block{Mathematics}{
Take a coffee, then:
\vspace{1.4cm}
\coloredbox{\begin{itemize}
\item State
\item Proof
\item Write in \LaTeX
\end{itemize}}
\vspace{1.4cm}
\innerblock{Integral approximation}{
$\int_a^b f(x) dx \approx (b-a) \sum_{i=0}^n w_i f(x_i)$
}
}
\note[targetoffsetx = 4.5cm, targetoffsety = -5cm,
angle = -30, connection, width=10cm]{\Large Weight function}
\subcolumn{.5}
\block{Geometry}{
\vspace{-3cm}
\centering
\begin{tikzpicture}[scale=1.8]
\tkzDefPoint(0,0){A}
\tkzDefPoint(4,1){B}
\tkzInterCC(A,B)(B,A)
\tkzGetPoints{C}{D}
\tkzDrawPolygon(A,B,C)
\tkzDrawPoints(A,B,C,D)
\tkzLabelPoints[below left](A)
\tkzLabelPoints(B,D)
\tkzLabelPoint[above](C){$C$}
\tkzDrawCircle[dotted](A,B)
\tkzDrawCircle[dotted](B,A)
\tkzCompass[color=red, very thick](A,C)
\tkzCompass[color=red, very thick](B,C)
\tkzCompass[color=red, very thick](A,D)
\tkzCompass[color=red, very thick](B,D)
\tkzDrawArc[fill=blue!10,thick](A,B)(C)
\tkzDrawArc[fill=blue!10,thick](B,C)(A)
\tkzDrawArc[fill=blue!10,thick](C,A)(B)
\tkzInterLC(A,B)(B,A)
\tkzGetPoints{F}{E}
\tkzDrawPoints(E)
\tkzLabelPoints(E)
\tkzDrawPolygon(A,E,D)
\tkzMarkAngles[fill=yellow,opacity=0.5](D,A,E A,E,D)
\tkzMarkRightAngle[size=0.65,fill=red,opacity=0.5](A,D,E)
\tkzLabelAngle[pos=0.7](D,A,E){\small$\alpha$}
\tkzLabelAngle[pos=0.8](A,E,D){\small$\beta$}
\tkzLabelAngle[pos=0.5,xshift=-1.4mm](A,D,D){\small$90^\circ$}
\tkzLabelSegment[below=0.6cm,align=center,font=\small](A,B){Reuleaux\\triangle}
\tkzLabelSegment[above right,sloped,font=\small](A,E){hypotenuse}
\tkzLabelSegment[below,sloped,font=\small](D,E){opposite}
\tkzLabelSegment[below right=4cm,font=\small](A,E){Thales circle}
\end{tikzpicture}
}
\end{subcolumns}
\column{.35}
\block{Plotting functions}{
%\image{plot}% if you would like to include an external image
\pgfplotsset{width=\linewidth}
\begin{tikzpicture}
\begin{axis} [
title = {$f(x,y) = \sin(x)\sin(y)$},
xtick = {0,90,...,360},
ytick = {90,180,...,360},
xlabel = $x$, ylabel = $y$,
ticklabel style = {font = \scriptsize},
grid
]
{ sin(x)*sin(y) };
\end{axis}
\end{tikzpicture}
\lipsum[4]
}
\end{columns}
\block{Conclusion and outlook}{
\begin{multicols}{4}
\lipsum[1-2]
\end{multicols}
}
\end{document}