Skip to content

Latest commit

 

History

History
51 lines (40 loc) · 2.28 KB

TECHNICAL.md

File metadata and controls

51 lines (40 loc) · 2.28 KB
Raw
layout title nav-menu show_tile permalink
pageContent
Technical background
false
false
TECHNICAL.html

Internal ergometer driver

The source code of the ergometer driver which is used by ergometer-space is located in another repository: https://github.com/tijmenvangulik/ErgometerJS

Some plugin examples are open source, The rest of the software is not open source.

Server

  • Server written in Node.js which has very hight performance and had good deployment in the cloud (frameworks express, socket.io, jake)
  • Type script is used generate the javascript. Type scripts makes the code more robust and increases the
  • Server architecture scales to multiple servers. The servers are deployed in the cloud using free services. In total there are 4 servers.
    • data server which serves the data (html,css,javascript)
    • manager which functions as a dictionary where the rooms are
    • 2 room servers which manage each 3 rooms. This can scale to many servers which are spread over the internet. One room can only run on one server.

Web app

  • Html 5 features
    • websockets to your local driver
    • websockets to the server
    • web rtc peer to peer connection for audio and data
    • Most data is stored in the local storage of the client which reduces the server load and ensures that private data is kept private
    • animation frames for efficient animation
    • inline interactive svg
    • html 5 canvas drawing
  • There is a 3d model for the animations. This will make it possible to later use real web 3d
  • NTP time synchronization

Data server (deprecated)

  • Written in C++ and build on top of boost.
  • All code should be portable to other systems including embedded systems
  • The data server is a web socket server which can server multiple ergometers. Multiple clients can also connect to one ergometer
  • ergometer scores are protected by a hash which is checked on the server. This way you can not tamper with the scores.
  • You can write javascript/typescript plugins (). The editor knows the structure of the application and the libraries can can provide syntax checks and code completion.
  • This version does not work any more on OS X El Capitan I can only fix this problem when concept2 releases a new version. As alternative you can use chrome as browser and connect using blue tooth to a PM5.