title: Which data visualization library should I use
body: <p>I'm working on a web application that should visualize CDR (Call Data Record) data in some sort of multidimensional graph. We will use a java framework for the application so I'm mostly looking for a java library, but I'm also open for other suggestions if they are a better solution. The visualized data (graph) will be included in user profiles within the application. The visualization should look something like this:</p>
  
  <p><img src="https://i.stack.imgur.com/KJurY.png" alt="enter image description here"> </p>
  
  <p><em>(this is just an example how the design could look, we need to think of a new design)</em></p>
  
  <p>I've no experience with data visualization so it would be good if the library is well documented.</p>