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-rw-r--r--doc/introduction.tex87
1 files changed, 78 insertions, 9 deletions
diff --git a/doc/introduction.tex b/doc/introduction.tex
index 51487b5..bd5e01b 100644
--- a/doc/introduction.tex
+++ b/doc/introduction.tex
@@ -4,10 +4,13 @@
\usepackage{minted}
\usepackage{graphicx}
\usepackage{hyperref}
+\usepackage[english]{babel}
+
\hypersetup{urlcolor=red,colorlinks}
\definecolor{bg}{rgb}{0.95,0.95,0.95}
\newminted{xml}{fontsize=\tiny}
-\usetheme{Warsaw}
+\newminted{javascript}{fontsize=\tiny}
+\usetheme{default}
\title[OSM-Projekt - What is...]{OSM-Projekt - An introduction into OpenStreetMap}
\author{Philipp Borgers}
\institute{Institute for Computer Science, Free University Berlin}
@@ -18,6 +21,12 @@
\end{frame}
\begin{frame}{Introduction}
+ \begin{itemize}
+ \item Huge database of geo data
+ \item Open Data, licenced under cc (ODbL?)
+ \item Everybody can contribute, it's like an wiki
+ \end{itemize}
+
\end{frame}
\begin{frame}[fragile]
@@ -100,18 +109,39 @@
\end{itemize}
\end{frame}
\begin{frame}[fragile]
- \frametitle{database - overview}
+ \frametitle{database - schema (tables)}
\begin{itemize}
- \item bla
+ \item nodes
+ \item ways
+ \item relations
+ \item users
+ \item way\_nodes
+ \item relation\_members
\end{itemize}
\end{frame}
+
+\begin{frame}[fragile]
+ \frametitle{database - nodes table}
+ \begin{tabular}{| l | c | r |}
+ \hline
+ id & bigint & not null \\ \hline
+ version & integer & not null \\ \hline
+ user\_id & integer & not null \\ \hline
+ tstamp & timestamp without time zone & not null \\ \hline
+ changeset\_id & bigint & not null \\ \hline
+ tags & hstore & \\ \hline
+ geom & geometry & \\ \hline
+ \end{tabular}
+\end{frame}
+
\begin{frame}[fragile]
\frametitle{XAPI}
\begin{itemize}
- \item Database frontend to retrieve node, ways and relations
+ \item Database frontend used to retrieve node, ways and relations
\item XPATH like requests
\item Returns xml (osm xml schema)
\item \href{http://wiki.openstreetmap.org/wiki/Xapi}{Wiki page}
+ \item OSM community needs a good implementation
\end{itemize}
\end{frame}
\begin{frame}[fragile]
@@ -133,6 +163,42 @@
\end{itemize}
\end{frame}
+\begin{frame}[fragile]
+ \frametitle{node.js}
+ \begin{itemize}
+ \item \href{http://nodejs.org/}{node.js} is asynchronous javascript
+ \item Event based
+ \item Written on top of the \href{http://code.google.com/p/v8/}{V8 Javascript Engine} (Virtual machine)
+ \end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+ \frametitle{Simple example - echo server}
+ \begin{javascriptcode}
+ var net = require('net');
+
+ var server = net.createServer(function (socket) {
+ socket.write("Echo server\r\n");
+ socket.pipe(socket);
+ });
+
+ server.listen(8124, "127.0.0.1");
+ \end{javascriptcode}
+\end{frame}
+
+\begin{frame}[fragile]
+ \frametitle{Simple example - event}
+ Listen for events
+ \begin{javascriptcode}
+ server.on('connection', function(stream) {
+ console.log('someone connected!');
+ });
+ \end{javascriptcode}
+ Emit events
+ \begin{javascriptcode}
+ server.emit('connection',socket);
+ \end{javascriptcode}
+\end{frame}
\begin{frame}[fragile]
\frametitle{Licence}
@@ -144,10 +210,13 @@
\end{center}
\end{frame}
-
-
-
-
-
+\begin{frame}[fragile]
+ \frametitle{more}
+ \begin{itemize}
+ \item \url{https://github.com/slomo/osm-spline-xapi}
+ \item \href{https://lists.spline.inf.fu-berlin.de/mailman/listinfo/xapi}{XAPI (course) mailinglist}
+ \item \url{http://osm.spline.de}
+ \end{itemize}
+\end{frame}
\end{document}