[Tex/LaTex] How to modify a tikzposter title style

tikzposter

What I want

I would like to use the Wave titlestyle that I found in /usr/share/texlive/texmf-dist/tex/latex/tikzposter/tikzposterTitlestyles.tex on my Kubuntu 14.4. However I'd like to have the top to be smaller in vertical size.

What I tried

I tried

\usetitlestyle[titletotopverticalspace=-100mm,]{Wave}

but this also brought the title text up.

I tried to copy the code from tikzposterTitlestyles.tex and to manipulate it, but

\definetitlestyle{mytitlestyle}{
    width=\paperwidth, roundedcorners=0, linewidth=0pt, innersep=1.5cm,
    titletotopverticalspace=0mm, titletoblockverticalspace=20mm,
    titlegraphictotitledistance=10pt, titletextscale=1
}{
    \coordinate (topleft) at (\titleposleft,\titlepostop);
    \coordinate (topright) at (\titleposright,\titlepostop);
    \coordinate (lefttoright) at (\titlewidth,0);
    \coordinate (head) at (0,\titlepostop-\titleposbottom);
    %
    \draw[draw=none, left color=blocktitlebgcolor!90!black, right color=titlebgcolor!95]%
        (topright) -- (topleft) -- %
        ($(topleft) - (head)-(0,6)$) .. controls %
        ($(topleft) - (head)-(0,6) + 0.25*(lefttoright) + (0,9)$) and %
        ($(topright) - (head) - 0.5*(lefttoright) - (-10,16)$) .. %
        ($(topright) - (head)$) -- cycle;
%     %
    \draw[draw=none, left color=blocktitlebgcolor, right color=white] %
        ($(topleft) - (head)-(0,2)$) .. controls %
        ($(topleft) - (head)-(-6,3) + 0.25*(lefttoright) + (0,10)$) and ($(topright) -
        (head) - 0.25*(lefttoright) - (-6,17)$).. %
        ($(topright) - (head)$) .. controls %
        ($(topright) - (head) - 0.25*(lefttoright)-(-7,19)$) and %
        ($(topleft) - (head)-(-9,5) + 0.25*(lefttoright) + (0,10)$) .. %
        ($(topleft) - (head)-(0,4)$);
    %
    \draw[draw=none, left color=white, right color=blocktitlebgcolor!90!black]%
        ($(topleft) - (head)-(0,2)$) .. controls %
        ($(topleft) - (head)-(-6,3) + 0.25*(lefttoright) + (0,10)$) and ($(topright) -
        (head)+(0,6) - 0.25*(lefttoright) - (-6,20)$)..%
        ($(topright) - (head)+(0,6)$) -- %
        ($(topright) - (head)$) .. controls %
        ($(topright) - (head) - 0.25*(lefttoright) - (-6,17)$) and %
        ($(topleft) - (head)-(-8,4) + 0.25*(lefttoright) + (0,10)$) .. %
        ($(topleft) - (head)-(0,2)$);

    \setlength{\TP@titletoblockverticalspace}{5\TP@titletoblockverticalspace}
}

already threw errors like

! You can't use `the character 0' after \the.
\titlepostop ->0
                .5\paperheight 
l.197 

! Missing number, treated as zero.
<to be read again> 
                   @
l.197 

! Illegal unit of measure (pt inserted).
<to be read again> 
                   @
l.197 


! Package calc Error: `@' invalid at this point.

See the calc package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              

l.197 

! Undefined control sequence.
<argument> \TP 

l.197 

! Missing number, treated as zero.
<to be read again> 
                   t
l.197 

! Illegal unit of measure (pt inserted).
<to be read again> 
                   t
l.197 

! Undefined control sequence.
<argument> 5\TP 
                @titletoblockverticalspace
l.197 

! Undefined control sequence.
<recently read> \TP 

l.197 

! Undefined control sequence.
<argument> \TP 
               @titletoblockverticalspace
l.197 

! You can't use `the character @' after \the.
<argument> \TP @
                titletoblockverticalspace
l.197

and enclosing \setlength{\TP@titletoblockverticalspace}{5\TP@titletoblockverticalspace} with \makeatletter and \makeatother did not help.

What can I do?

Best Answer

This isn't an answer in the sense that the title is modified, but I can tell you what is wrong with the code you've showed us:

The empty line before the \setlength. Paragraph breaks are not allowed there, so you need to either remove the blank line, or add a %, as you can see other places.
The @. To use @ in macro names in the preamble, you need to add \makeatletter before the code and \makeatother after, see What do \makeatletter and \makeatother do?.

\documentclass{tikzposter}
\usetheme{Wave}
\author{A not so frustrated user}
\title{A pretty enough poster I hope}

\makeatletter % added
\definetitlestyle{mytitlestyle}{
    width=\paperwidth, roundedcorners=0, linewidth=0pt, innersep=1.5cm,
    titletotopverticalspace=0mm, titletoblockverticalspace=20mm,
    titlegraphictotitledistance=10pt, titletextscale=1
}{%
    \coordinate (topleft) at (\titleposleft,\titlepostop);
    \coordinate (topright) at (\titleposright,\titlepostop);
    \coordinate (lefttoright) at (\titlewidth,0);
    \coordinate (head) at (0,\titlepostop-\titleposbottom);
    %
    \draw[draw=none, left color=blocktitlebgcolor!90!black, right color=titlebgcolor!95]%
        (topright) -- (topleft) -- %
        ($(topleft) - (head)-(0,6)$) .. controls %
        ($(topleft) - (head)-(0,6) + 0.25*(lefttoright) + (0,9)$) and %
        ($(topright) - (head) - 0.5*(lefttoright) - (-10,16)$) .. %
        ($(topright) - (head)$) -- cycle;
%     %
    \draw[draw=none, left color=blocktitlebgcolor, right color=white] %
        ($(topleft) - (head)-(0,2)$) .. controls %
        ($(topleft) - (head)-(-6,3) + 0.25*(lefttoright) + (0,10)$) and ($(topright) -
        (head) - 0.25*(lefttoright) - (-6,17)$).. %
        ($(topright) - (head)$) .. controls %
        ($(topright) - (head) - 0.25*(lefttoright)-(-7,19)$) and %
        ($(topleft) - (head)-(-9,5) + 0.25*(lefttoright) + (0,10)$) .. %
        ($(topleft) - (head)-(0,4)$);
    %
    \draw[draw=none, left color=white, right color=blocktitlebgcolor!90!black]%
        ($(topleft) - (head)-(0,2)$) .. controls %
        ($(topleft) - (head)-(-6,3) + 0.25*(lefttoright) + (0,10)$) and ($(topright) -
        (head)+(0,6) - 0.25*(lefttoright) - (-6,20)$)..%
        ($(topright) - (head)+(0,6)$) -- %
        ($(topright) - (head)$) .. controls %
        ($(topright) - (head) - 0.25*(lefttoright) - (-6,17)$) and %
        ($(topleft) - (head)-(-8,4) + 0.25*(lefttoright) + (0,10)$) .. %
        ($(topleft) - (head)-(0,2)$);
% added the percent character here
    \setlength{\TP@titletoblockverticalspace}{5\TP@titletoblockverticalspace}
}
\makeatother

% make this style active
\usetitlestyle{mytitlestyle}

\begin{document}
\maketitle
\end{document}

Related Solutions

[Tex/LaTex] Long title in tikzposter

The problem is that tikzposter puts the title inside a \scalebox thus preventing line breaks. You can recover line breaking placing your title inside a \parbox:

\documentclass{tikzposter}

\title{\parbox{\linewidth}{\centering This is a really  really  really  really  really  really  really  really  really  long title for a poster}}
\institute{The Institute}
\author{The Author}
\titlegraphic{Logo}
\usetheme{Basic}

\begin{document}

\maketitle
\block{BlocktitleA}{Blocktext}
\begin{columns}
\column{0.3}
\block{BlocktitleB}{Blocktext}
\column{0.7}
\block{BlocktitleC}{Blocktext}
\note{Notetext}
\end{columns}

\end{document}

enter image description here

[Tex/LaTex] How to change the style of one block in tikzposter package

I am not entirely sure what you are after as your title does not seem to have a black frame, but perhaps this will get you started. You can define a new block style using \defineblockstyle, which allows you to set-up the characteristics of the block as you want them. I have then wrapped this new block inside a \myblock command that can be used to create a single bloc in a particular style. By default, it creates block in the "MyBlock" style but it can be used for any style:

\myblock{title}{content}%           a block in the "MyBlock" style
\myblock[Envelope]{title}{content}% a block in the "Envelope" style

Secondly I have defined the "MyBlock" style to do what I think you want. With this in place your MWE produces:

Here is the full code:

\documentclass[25pt, a1papper, portrait]{tikzposter}
\usepackage[utf8]{inputenc}
\title{\parbox{\linewidth}{\centering dsfds sdfsfd}}
\author{fdssfa}
\date{\today}
\institute{fsdfs sdfdsfds}
\usepackage{blindtext}
\usepackage{comment}
\usetheme{Desert}

\defineblockstyle{MyBlock}{% define a custom style for a block
    titlewidthscale=0.8, bodywidthscale=1, titlecenter,
    titleoffsetx=0pt, titleoffsety=0pt, bodyoffsetx=0pt, bodyoffsety=15mm,
    bodyverticalshift=15mm, roundedcorners=22, linewidth=5pt,
    titleinnersep=8mm, bodyinnersep=8mm
}{
    \draw[rounded corners=\blockroundedcorners, inner sep=\blockbodyinnersep,
          line width=\blocklinewidth, color=black,
          top color=titlebgcolor!90, bottom color=titlebgcolor!20!white,
          %fill=blockbodybgcolor
          ]
      (blockbody.south west) rectangle (blockbody.north east); %
    \ifBlockHasTitle%
        \draw[rounded corners=\blockroundedcorners, inner sep=\blocktitleinnersep,
          top color=titlebgcolor!90, bottom color=titlebgcolor!20!white,
          line width=\blocklinewidth, color=black, %fill=blocktitlebgcolor
          ]
      (blocktitle.south west) rectangle (blocktitle.north east); %
    \fi%
}
\newcommand\myblock[3][MyBlock]{\useblockstyle{#1}\block{#2}{#3}\useblockstyle{Basic}}



\begin{document}
\useblockstyle{Basic}

\maketitle

\block{Introduction}
{
    \blindtext
}


\begin{columns}
    \column{0.4}
    \myblock{Objectives}{% use custom block to define the objectives
      \blindtext \vspace{2cm}
     }

    \column{0.6}{
    \block{Something else}{Here, \blindtext \vspace{4cm}}
    \note[
        targetoffsetx=-9cm,
        targetoffsety=-6.5cm,
        width=0.5\linewidth
        ]
        {e-mail \texttt{sharelatex@sharelatex.com}}}
\end{columns}

\begin{columns}
    \column{0.5}
    \block{A figure}
    {
        \begin{tikzfigure}

        \end{tikzfigure}
    }
    \column{0.5}
    \block{Description of the figure}{\blindtext}
\end{columns}
\block[titleleft,titleoffsetx=2em,titleoffsety=1em,bodyoffsetx=2em,
bodyoffsety=1em,titlewidthscale=.6, bodywidthscale=.8, roundedcorners=14,
linewidth=8mm, bodyinnersep=4em, titleinnersep=2em]
{Sample Block}{Text\\Text\\Text Text}
\end{document}