I suggested to run the servers before to initialice the control routine, to do this follow next steps
To run the server that provide three.js module (to load 3D geometries)
(1) Clone 'https://github.com/mrdoob/three.js.git'
(2) get into root foolder in a terminal and run "npm install"
(3) Run server at 8080 port with following command: "npm start" (The first two steps only must be executed once)
To run the server with the graph interface of drone, follow next steps:
(1) Using a terminal move to NodeJsCode folder
(2) run the both html and websocket server with following column 'node Server.js'
Finally, open the website when UAV information is being displayed in the following URL:
Now control can be started