Graphics, Figures & Tables ⇒ newcommand or command in caption of figure?

[formulation]

Dear all,

I have a graph which i need to explain in the caption. Unfortunately I need numbers and letters with a circle around in order to explain it (which is a scanned image). Therefore, I defined a new command in the preamble of the main document

\usepackage{tikz}
\newcommand*\mycirc[1]{%
\begin{tikzpicture}[baseline=(C.base)]
\node[draw,circle,inner sep=1pt](C) {#1};
\end{tikzpicture}}

and here the preview of the latex-code, I inserted the command via ERT:

\begin{figure}
\noindent \begin{centering}
\includegraphics[scale=0.5]{\string"../Pics/Chapter/1_\string".png}
\par\end{centering}
\caption{ diagram displaying the corrosion
\mycirc{1}\label{fig:1} }
\end{figure}


I cannot compile it, even when I insert the command directly into the caption, like

\begin{tikzpicture}[baseline=(C.base)] \node[draw,circle,inner sep=1pt](C) {1}; \end{tikzpicture}

it only produces errors, while both possible ways work outside the caption in standard environment.

Could anybody help me to get around that problem inside the caption environment?
thanks a lot and all the best!

Christoph

[frabjous]

Try:

Code: Select all

\caption{ diagram displaying the corrosion
\protect\mycirc{1}\label{fig:1} }

If that doesn't work, then a proper minimal working example (rather than snippets) would be appreciated.

[formulation]

thank you a lot for your help, the \protect worked fine!
Next time I'll obey the guidelines you linked in your post.

[localghost]

[…] the \protect worked fine! […]

Then please mark the topic (not the last post) accordingly as written in the Section 3 of the Board Rules (to be read before posting).


Best regards and welcome to the board
Thorsten