openni-browser

Server <-> Browser bridge for OpenNI skeleton.

Works with kinect.

Uses Socks.js (via Shoe).

Install

Install libusb and OpenNI following the platform-specific instructions at https://github.com/OpenNI/OpenNI

$ npm install openni-browser

Create Node Server

var kinectSock = require('openni-browser')();
var ecstatic = require('ecstatic')(__dirname + '/public');

var server = require('http').createServer(ecstatic);

kinectSock.install(server, '/skeleton');

server.listen(8080, function() {
  console.log('kinect socks server listening...');
});

Create Client

Copy browser/openni.js into the public folder.

In your HTML file include that script before the body close tag:

<script src="openni.js"></script>

Inside a browser script:

Initialize connection to the server by providing a full or relative URL:

var skeleton = openni('/skeleton');

Listen for user events:

[
  'newuser',
  'userexit',
  'lostuser',
  'posedetected',
  'calibrationstart',
  'calibrationsuccess',
  'calibrationfail'
].forEach(function(userEventType) {
  sleleton.on(userEventType, function(userId) {
    console.log(userEventType + ' (' + userId + ')');
  });
});

Listen for joint position changes:

jointNames = [
  "head",
  "neck",
  "torso",
  "waist",
  "left_collar",
  "left_shoulder",
  "left_elbow",
  "left_wrist",
  "left_hand",
  "left_fingertip",
  "right_collar",
  "right_shoulder",
  "right_elbow",
  "right_wrist",
  "right_hand",
  "right_fingertip",
  "left_hip",
  "left_knee",
  "left_ankle",
  "left_foot",
  "right_hip",
  "right_knee",
  "right_ankle",
  "right_foot"  
];

jointNames.forEach(function(jointName) {
  kinect.on(jointName, function(userId, x, y, z) {
    console.log('The joint ' + jointName + ' of user ' + userId +
      ' moved to (' + x + ', ' + y + ', ' + z + ')');
  });
});

Connection Handling

The skeleton object will also emit:

connect — when there is a connection to the server
end — when the connection to the server is ended

The skeleton object also has a .sock property exposing the shoe socket.

Examples

See the examples folder.

Licence

MIT