I am creating a spiral, inspired by Mark Wibrow's answer from Text spirals with TikZ.
However, I have a problem. I want to put a text in the spiral that uses French characters and symbols, such as à, é, and so on. Concretely, I want to put the text "On a été à Paris".
As you can see below, I tried adding
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
to the preamble, but unfortunately it gives an error. The console says the error is "Extra \else" and "\pgf@lib@dec@text@char ->\else". It might have something to do with the TikZ package though I'm not sure.
What could be the problem? Does somebody have a fix for this?
The code I'm currently using (and which is not working, though it does work provided you leave out from it the three above-mentioned packages) is as follows:
\documentclass{standalone}
\usepackage{tikz}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usetikzlibrary{decorations.text}
\makeatletter
\let\pgf@lib@dec@text@dobox@original=\pgf@lib@dec@text@dobox%
\def\pgf@lib@dec@text@dobox{%
\pgf@lib@dec@text@dobox@original%
\ifpgfdecorationtextalongpathscaletext%
\pgfmathparse{\pgf@lib@dec@text@endscale+(\pgf@lib@dec@text@startscale-\pgf@lib@dec@text@endscale)*\pgfdecoratedremainingdistance/\pgfdecoratedpathlength}%
\setbox\pgf@lib@dec@text@box=\hbox{\scalebox{\pgfmathresult}{\box\pgf@lib@dec@text@box}}%
\fi%
}
\newif\ifpgfdecorationtextalongpathscaletext
\def\pgf@lib@dec@text@startscale{1}
\def\pgf@lib@dec@text@endscale{1}
\pgfkeys{/pgf/decoration/.cd,
text path start scale/.code={%
\pgfdecorationtextalongpathscaletexttrue%
\def\pgf@lib@dec@text@startscale{#1}%
},
text path end scale/.code={%
\pgfdecorationtextalongpathscaletexttrue%
\def\pgf@lib@dec@text@endscale{#1}%
}
}
\begin{document}
\begin{tikzpicture}[
decoration={
reverse path,
text along path,
text path start scale=1.5,
text path end scale=0,
text={On a \'et\'e \`a Paris.}}
]
\draw [decorate]
(0,0)
\foreach \i [evaluate={\r=(\i/2000)^2;}] in {0,5,...,2880}{ -- (\i:\r)};
\useasboundingbox (-2.75,-2.75) rectangle (2.75,2.75);
\end{tikzpicture}
\end{document}
babel
TikZ library, as in Tikz shortandoff-on newcommand problem?