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+\parskip=1cm
+\parindent=0pt
+
+A small image with a filled circle follows here (with baseline): \tikz[baseline] \fill[red] (0,1cm) circle(2pt);
+
+\tikzsetnextfilename{\tikzexternalrealjob-setnextfilename}
+The next one uses
+\begin{tikzpicture}[baseline]
+ \draw (0,0) grid (4,4);
+\end{tikzpicture}
+an explizit file name.
+
+\begin{tikzpicture}
+ \node[draw,rounded corners] {A node with a ref (\ref{eq:1})};
+\end{tikzpicture}
+
+\begin{equation}
+ 1+1=3
+ \label{eq:1}
+\end{equation}
+
+\begin{tikzpicture}
+ \node[draw,rounded corners] {A node which contains a label\label{a:label:in:a:picture}};
+\end{tikzpicture}
+
+The label inside of a node is on page~\pageref{a:label:in:a:picture}.
+
+\expandafter\ifx\csname pgfplotslegendfromname\endcsname\relax
+\else
+The following picture exports a legend to the aux file (if possible).
+\begin{tikzpicture}
+ \begin{axis}[legend entries={1,2,3,4},legend to name=legend:name]
+ \addplot {x};
+ \addplot {x+1};
+ \addplot {x+2};
+ \addplot {x+3};
+ \end{axis}
+\end{tikzpicture}
+
+Here is the legend: \pgfplotslegendfromname{legend:name}.
+\fi