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		<title>nodescore</title>

		<meta name="nodescore" content="nodescore">
		<meta name="author" content="Rob Canning">

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		<h3>REALTIME WEB TECHNOLOGIES IN THE NETWORKED PERFORMANCE ENVIRONMENT</h3>
		<p>

		  <i><small>- <a href="http://rob.kiben.net">http://rob.kiben.net</a> <a href="rob@kiben.net">rob@kiben.net</a> -</small></i>
		</p>
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	      <section>
		<h2>NODESCORE</h2>
		<p>
		  NodeScore is a web based framework to facilitate networked ensemble performance.
		</p>
		<ul>
		  <li>Scores assembled in HTML5</li>
		  <li>Musicians displays controled remotely</li>
		  <li>Not all-in-one solution - Modular Approach</li>
		  <li>Runs alongside other streams: media, OSC automation etc.</li>
		</ul>

		<aside class="notes">
		  Oh hey, these are some notes. They'll be hidden in your presentation, but you can see them if you run the speaker notes server.
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	      <section>
		<h2>NODESCORE</h2>
		<p>

		</p>


		<img width="250" height="250" src="images/directed.png" alt="BreakDOM game screenshot">

		<img width="250" height="250" src="images/democracy.png" alt="BreakDOM game screenshot">

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		  Oh hey, these are some notes. They'll be hidden in your presentation, but you can see them if you run the speaker notes server.
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	      <section>
		<h2>Standards Complient</h2>

		    <img width="300" src="images/tim.jpg" alt="BreakDOM game screenshot">

		<ul>
		  <li>HTML5</li>
		  <li>CSS3</li>
		  <li>(JAVASCRIPT)</li>
		  <li>WEBSOCKETS</li>
		</ul>
		<br><br>
		<p>
		  Open Source - No Plugins <br>(Flash, Flex, Shockwave, Java)
		</p>
	      </section>

	      <section>
		<h2>WEBSOCKETS</h2>

	  <p>
		  Server Push Technology<br>
		  </p>
	  <a class="image" href="http://hakim.se/experiments/html5/breakdom/" target="_blank">
		    <img width="250" height="250" src="images/websockets.png" alt="BreakDOM game screenshot">
		  </a>
		<ul>
		  <li>More efficient than AJAX/Comet Programming</li>
		  <li>Persistant bidirectional TCP socket</li>
		  <li>REQUEST/RESPONSE handshakes elimintated</li>
		</ul>


		<aside class="notes">
		  Oh hey, these are some notes. They'll be hidden in your presentation, but you can see them if you run the speaker notes server.
		</aside>
	      </section>


	      <section>
		<h2>HTTP://SOCKET.IO</h2>

		<p>Socket.IO simplifies the WebSocket API and unifies the APIs of its fallback transports.</p>
		  <a class="image" href="http://hakim.se/experiments/html5/breakdom/" target="_blank">
		    <img height="250" src="images/socketio.png" alt="BreakDOM game screenshot">
		  </a>

		<aside class="notes">
		<p>Racket/PHP Alternative</p>
		</aside>
	      </section>


	      <section>
		<h2>Serverside Javascript</h2>
		<h3>NodeJS Server</h3>
		<pre><code contenteditable>var sio = require('socket.io')
, http = require('http'), fs = require('fs'), static = require('node-static');

var clientFiles = new static.Server('./www');
var httpServer = http.createServer(
    function(request, response) {
	request.addListener('end', function () {
	    clientFiles.serve(request, response);
	    process.setMaxListeners(0);
	});
    }); httpServer.listen(8889);

var io = sio.listen(httpServer);
io.set('log level', 1); // reduce logging
io.sockets.on('connection', function (socket) {</code></pre>

	      </section>

<section>
		<h2>Client Plumbing</h2>

		// load the sockets lib
		<pre><code contenteditable>&lt;script src="/socket.io/socket.io.js"&gt &lt;/script&gt
		</code></pre>
// connect to socket
<pre><code contenteditable>
var socket = io.connect();
</code></pre>

//send something down the pipe
<pre><code contenteditable>
function startChr() { socket.emit("startChr") }                                                          </code></pre>
     </section>

	      <section>
		<h2>CLIENT->SERVER->CLIENT</h2>
Chronometer on server pushes -> client
	<pre><code contenteditable>// instruction from "director" client executed on server
socket.on('startChr', function () { startChr();});
function startChr() { if (chronstate !== 1) {
   chronstate = 1; chronometer();} }
	    ---snip---
	    setTimeout(function(){chronometer()}, 100);
	    socket.broadcast.emit('chronFromServer', chron)
	    socket.emit('chronFromServer', chron)
	    ---snip---
// update chron value on the clients in line with server
socket.on("chronFromServer", function(chron) {
    $("div#client_chronometer").text(chron);
}); </code></pre>

	      </section>

	      <section>
		<h2>NODESCORE: INFO PANEL</h2>
<a class="image" href="http://hakim.se/experiments/html5/breakdom/" target="_blank">
		    <img width="800" src="images/nodescore-infopanel.png" alt="screenshot">
		  </a>

		<p>
		</p>
	      </section>

	      <section>
		<h2>NODESCORE: CHAT PANEL</h2>
<a class="image" href="http://hakim.se/experiments/html5/breakdom/" target="_blank">
		    <img width="800" src="images/nodescore-chat.png" alt="screenshot">
		  </a>

		<p>
		</p>
	      </section>

	      <section>
		<h2>NODESCORE: NEXUS7 CSS</h2>
<a class="image" href="http://hakim.se/experiments/html5/breakdom/" target="_blank">
		    <img width="800" src="images/nodescore-nexus.png" alt="screenshot">
		  </a>

		<p>
		</p>
	      </section>


	      <section>
		<h2>Future Work</h2>
		<p>the TODO list...</p>
		<ol>
		  <li class="fragment"><stron>trials room->field->world</strong></li>
		  <li class="fragment"><em>Animated SVG, WebGL, <code>&lt;audio&gt;,&lt;video&gt;</em></code></li>

		  <li class="fragment">
		    <code>stop coding start composing</code><br>
		  </li>

		</ol>
	      </section>


		</ul>
	      </section>

	      <section>
		<h2>links</h2>
		<a href="http://nodescore.kiben.net/p/">This Presentation: http://nodescore.kiben.net/p/</a><br><br>

		<a href="http://nodescore.kiben.net">http://nodescore.kiben.net</a><br><br>

                <a href="http://nodescore.kiben.net/p/canning_netscores_shortpaper-2012.pdf">ICMC2012 Paper</a><br><br>
		<a href="http://gitorious.org/nodescore">Source Code on Gitorious</a><br><br>

		<a href="mailto:rc-web@kiben.net">rc-web@kiben.net</a><br><br>
		<a href="http://uk.linkedin.com/pub/rob-canning/35/9b5/481">
		  <img src="http://www.linkedin.com/img/webpromo/btn_liprofile_blue_80x15.png" width="80" height="15" border="0" alt="View Rob Canning's profile on LinkedIn">
		</a><br><br>


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author	tzara <rc-web@kiben.net>
date	Sat, 08 Sep 2012 08:25:19 +0000
parents	49c94f63b8b0
children	8fc7155aa3ac