back to localhost

2014-05-04 18:26:28 -07:00
commit 7989236dc1
@@ -14,11 +14,12 @@ Running the Server
 - Plugin the board
 - `python udp_server.py --json`
 - Optionally use `python udp_client.py --json` to verify data is coming through
- Make sure you have socket.io (or run `npm install socket.io`)
+- Run `npm install` to make sure you have the dependencies
 - Run `node socket_server.js`
- Visit [http://localhost:8880](http://localhost:8880) to see your brain waves
+- Visit [http://127.0.0.1:8880](http://127.0.0.1:8880) to see your brain waves
 - Optionally use `python socket_client.py` to view the Web Socket data coming back into Python (requires socketio-client)

+Running the Python server/client without the --json flag will cause the OpenBCISample object to be used as the data transmission mechanism. This is for people that want to do some processing in Python.

 Dependency List
 --------------
@@ -1,7 +1,110 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<style>
+ 
+svg {
+  font: 10px sans-serif;
+}
+ 
+.line {
+  fill: none;
+  stroke: #000;
+  stroke-width: 1.5px;
+}
+ 
+.axis path,
+.axis line {
+  fill: none;
+  stroke: #000;
+  shape-rendering: crispEdges;
+}
+ 
+</style>
+<body>
 <script src="/socket.io/socket.io.js"></script>
+<script src="http://d3js.org/d3.v3.min.js"></script>
 <script>
-  var socket = io.connect('http://10.0.1.194');
-  socket.on('openbci', function (data) {
-    console.log(data);
-  });
+
+function Wave() {
+  var n = 200;
+  this.data = d3.range(n).map(function () { return 0; });
+ 
+var margin = {top: 0, right: 20, bottom: 0, left: 40},
+    width = 960 - margin.left - margin.right,
+    height = 100 - margin.top - margin.bottom;
+ 
+this.x = d3.scale.linear()
+    .domain([0, n - 1])
+    .range([0, width]);
+var x = this.x;
+ 
+var y = d3.scale.linear()
+    .domain([-2000000, 2000000])
+    .range([height, 0]);
+ 
+this.line = d3.svg.line()
+    .x(function(d, i) { return x(i); })
+    .y(function(d, i) { return y(d); });
+ 
+var svg = d3.select("body").append("svg")
+    .attr("width", width + margin.left + margin.right)
+    .attr("height", height + margin.top + margin.bottom)
+  .append("g")
+    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
+ 
+svg.append("defs").append("clipPath")
+    .attr("id", "clip")
+  .append("rect")
+    .attr("width", width)
+    .attr("height", height);
+ 
+svg.append("g")
+    .attr("class", "x axis")
+    .attr("transform", "translate(0," + y(0) + ")")
+    .call(d3.svg.axis().scale(this.x).orient("bottom"));
+ 
+svg.append("g")
+    .attr("class", "y axis")
+    .call(d3.svg.axis().scale(y).orient("left"));
+ 
+this.path = svg.append("g")
+    .attr("clip-path", "url(#clip)")
+  .append("path")
+    .datum(this.data)
+    .attr("class", "line")
+    .attr("d", this.line);
+}
+
+Wave.prototype.sample = function(s) {
+  this.data.push(s);
+  // redraw the line, and slide it to the left
+  this.path
+      .attr("d", this.line)
+      .attr("transform", null)
+    .transition()
+      .duration(10)
+      .ease("linear")
+      .attr("transform", "translate(" + this.x(-1) + ",0)");
+ 
+  // pop the old data point off the front
+  this.data.shift();
+};
+
+var waves = [];
+for (var i = 0; i < 8; i++) {
+  waves.push(new Wave());
+}
+
+var process = 1;
+
+var socket = io.connect('http://127.0.0.1');
+socket.on('openbci', function (sample) {
+  if (process % 3 == 0) {
+    for (var i = 0; i < 8; i++) {
+      waves[i].sample(sample[i])
+    }
+    process = 1;
+  }
+  process++;
+});
 </script>
@@ -0,0 +1,31 @@
+{
+  "name": "openbci",
+  "version": "0.0.1",
+  "description": "A Python and Node.js warpper around OpenBCI",
+  "main": "socket_server.js",
+  "dependencies": {
+    "socket.io": "^0.9.16",
+    "node-static": "^0.7.3"
+  },
+  "devDependencies": {
+    "socket.io": "0.9.16"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/theRealWardo/Python_OpenBCI.git"
+  },
+  "keywords": [
+    "OpenBCI",
+    "brain",
+    "EEG"
+  ],
+  "author": "Matt Ward",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/theRealWardo/Python_OpenBCI/issues"
+  },
+  "homepage": "https://github.com/theRealWardo/Python_OpenBCI"
+}
@@ -6,7 +6,7 @@ var io = require('socket.io');

 var UDP_HOST = '127.0.0.1',
    UDP_PORT = 8888,
-    SERVER_HOST = '10.0.1.194',
+    SERVER_HOST = '127.0.0.1',
    SERVER_PORT = 8880,
    HTDOCS_PATH = '/htdocs';