I tried to insert a TikZ picture provided below into a beamerposter document.
It is generated by the following code (except the arrow in the middle of the "incident beam", it's an excessive detail):
\begin{tikzpicture}
% axes and origin
\coordinate (O) at (0, 0);
\draw node[anchor=north east] {$O$};
\draw [->] (-3,0)--(3,0) node [pos=0.98, below] {$x$};
\draw [->] (0,-1)--(0,3) node [pos=0.98, left] {$z$};
% orts
\draw [thick, ->] (O)--(1,0) node[pos=1, below] {$\vc e_x$};
\draw [thick, ->] (O)--(0,1) node[pos=1, left] {$\vc e_z$};
% vector k and its angle chi
\coordinate (K) at ({2.6*sin(30)},{2.6*cos(30)});
\draw [thick, ->] (O)--(K) node[pos=1, right] {$\vc k$};
\draw ([shift=(60:0.5)] O) arc (60:90:0.5) node[pos=0.35, above] {$\chi$};
% k projections
\coordinate (Kx) at (K |- O);
\coordinate (Kz) at (K -| O);
\draw [thick, ->](O)--(Kx) node[pos=1.15, below] {$\vc k_x$};
\draw [thick, ->](O)--(Kz) node[pos=1, left] {$\vc k_z$};
\draw [dashed] (K)--(Kz);
\draw [dashed] (K)--(Kx);
% foton beam
\draw (-3, 2)--(O) node[pos=0.45, above] {$\ \hbar \omega$};
\end{tikzpicture}
When I insert this piece of code anywhere in the beamerposter document (either within \begin{block}...\end{block}
, or just inside the frame), I get this ugly result (the image spans the whole poster width):
MWE
\documentclass[final, 24pt]{beamer}\usetheme{Frankfurt}\usecolortheme{orchid}\usefonttheme[onlymath]{serif}\mode<presentation>
\usepackage[orientation=portrait,size=a0,scale=1.4,debug]{beamerposter}
\usepackage[utf8]{inputenc}
\usepackage[T2A]{fontenc}
\usepackage[english, russian]{babel}
\usepackage{tikz}
\newcommand{\vc}[1]{\mathbf {#1}}
\begin{document}
\begin{frame}{}
\begin{center}
\begin{tikzpicture}
% ... picture code given above
\end{tikzpicture}
\end{center}
\end{frame}
\end{document}
How do I make its appearance acceptable? Rescaling by means of
\scalebox{2.2}{
\begin{tikzpicture}[scale=3]
% picture code
\end{tikzpicture}
}
produces this output (spans the full paper width as well)
Then I can make some adjustments to line widths (\draw[..., line width=0.33ex]
for example) manually to get reasonable output:
I want to ask the community whether there is another way to get the desired result (maybe it is a widely known issue but I have failed to google it directly) and why does direct 'porting' of nice image code from a4 document produce such a garbage?