\begin{figure}[!ht]
\centering
- \includegraphics[width=1.0\textwidth]{figures/hldformat.png}
- \caption{The structure of the event header and sub-event inside the hld file.}
+ \includegraphics[width=1.0\textwidth]{figures/hldformat_event.png}
+ \caption{The structure of the event header. Followed by sub-events.}
+ \label{fig:hldevent}
+\end{figure}
+
+\begin{figure}[!ht]
+ \centering
+ \includegraphics[width=1.0\textwidth]{figures/hldformat_subevent.png}
+ \caption{The structure of the sub-event sent by network hubs. Contains an arbitrary number of sub-sub-events.}
\label{fig:hldheaders}
-\end{figure}
\ No newline at end of file
+\end{figure}
+
+\begin{figure}[!ht]
+ \centering
+ \includegraphics[width=1.0\textwidth]{figures/hldformat_subevent_feegbe.png}
+ \caption{The sub-event inside the hld file sent by a front-end. Only a single sub-sub-event is included in a sub-event in this case.}
+ \label{fig:hldheaders2}
+\end{figure}