[Tex/LaTex] TikZposter and good-looking header (many authors + logo)

tikzpostertitles

as Johannes told me I should post a new question and set a link to the old more or less answered question: Tikzposter: Long list of authors breaking in two lines

I would like to know how I can use the code snippet from Johannes from above link (here) without a block around it and have the possibility to use a logo and to position it with x-y coordinates?

Here, a MWE:

\documentclass[25pt, a0paper, portrait, margin=0mm, innermargin=15mm, blockverticalspace=15mm, colspace=15mm, subcolspace=8mm]{tikzposter} 

\title{Using tikzposter} 
\author{Authors} 
\institute{Test Institute} 

\usetheme{Default}
\usetitlestyle{Empty}
\usecolorstyle[colorPalette=BrownBlueOrange]{Germany}

\begin{document}
\maketitle
\block{Creating the document}{The document...} 
\end{document}

What I need is a combination of the simplicity of Johannes' code for the "many authors/large title" problem and the possibilities of my own example (x-y coordinates) in the link above for the logo.

Thanks and wishes
Mike

Best Answer

Perhaps this is useful. The authors and institute can be written basically the same way, but use \\ instead of \par. The title needs to be written in a \parbox though, because of how \title is defined. If you want to avoid that \parbox, you'll need to add 

\makeatletter
% redefine \title macro
\def\title#1{\gdef\@title{#1}}
\makeatother

to the preamble, before \title.

To place a logo with coordinates, you can make use of the fact that the whole poster is essentially a big tikzpicture, and that the position of the title can be obtained via the macros \titlepostop, \titleposbottom, \titleposleft and \titleposright. So you can use normal TikZ features to place the logo exactly where you like it relative to the title, e.g. with

\path (\titleposright,\titleposbottom) ++(-1cm,5mm) node[inner sep=0pt,above left] {\includegraphics{example-image}};

Place this right after \maketitle.

\documentclass[25pt, a0paper, portrait, margin=0mm, innermargin=15mm, blockverticalspace=15mm, colspace=15mm, subcolspace=8mm]{tikzposter} 

\newcommand{\ini}{\textsuperscript{1}}
\newcommand{\inii}{\textsuperscript{2}}

\title{\parbox{\linewidth}{\centering The Journey of Walter Wombat and Other Wacky Creatures Meaning That the Title Will Span More Than One Line}}
\author{Carl Capybara\ini, Lazy Lizard\ini, Busy Bee\inii,\\
        Gabrielle Giraffe\ini, Laura Lion\ini ~and Klaus Koala\inii} 
\institute{\ini Institute of Applied Duck Dance\\
           \inii Institute of Experimental Duck Dance} 

\usetheme{Default}
\usetitlestyle{Empty}
\usecolorstyle[colorPalette=BrownBlueOrange]{Germany}

\begin{document}
\maketitle
\path (\titleposright,\titleposbottom) ++(-1cm,5mm) node[inner sep=0pt,above left] {\includegraphics{example-image}};

\block{Creating the document}{The document...} 
\end{document}

Another option might be the example below. You can use Johannes' title code almost directly in \settitle, just with the addition of a \parbox.

\documentclass[25pt, a0paper, portrait, margin=0mm, innermargin=15mm, blockverticalspace=15mm, colspace=15mm, subcolspace=8mm]{tikzposter} 

\newcommand{\ini}{\textsuperscript{1}}
\newcommand{\inii}{\textsuperscript{2}}

\usetheme{Default}
\usetitlestyle{Empty}
\usecolorstyle[colorPalette=BrownBlueOrange]{Germany}

\settitle{%
  \parbox{\linewidth}{%
        \centering
        \color{titlefgcolor}
        \vspace*{1em}
        {\bfseries \Huge The Journey of Walter Wombat \par}
        \vspace*{3em}
        {\huge Carl Capybara\ini, Lazy Lizard\ini, Busy Bee\inii, \par Gabrielle Giraffe\ini, Laura Lion\ini ~and Klaus Koala\inii  \par}
        \vspace*{1em}
        {\LARGE \ini Institute of Applied Duck Dance\par
        \inii Institute of Experimental Duck Dance}
  }
}


\begin{document}
\maketitle
\path (\titleposright,\titleposbottom) ++(-1cm,5mm) node[inner sep=0pt,above left] {\includegraphics{example-image}};

\block{Creating the document}{The document...} 
\end{document}
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