The graphsub from kennethliow

                       _     ____        _     
  __ _ _ __ __ _ _ __ | |__ / ___| _   _| |__  
 / _` | '__/ _` | '_ \| '_ \\___ \| | | | '_ \ 
| (_| | | | (_| | |_) | | | |___) | |_| | |_) |
 \__, |_|  \__,_| .__/|_| |_|____/ \__,_|_.__/ 
 |___/          |_|

graphSub is a re-usable force directed chart for displaying connected data. Written in Javascript with the d3js library. It has some cool features rolled in.

Featues include:

Display graph subsets. Given a data-set with 1000+ nodes, displaying all nodes at once can clutter your screen. With graphSub you can display only a subset of your data-set whilst being able to navigate through the entire data-set with mouse clicks.
The search box feature allows you to quickly locate the node that you are interested in.
None over-lapping labels means that node labels do not obscure each other.
Works on touch screens.
The responsive chart resizes upon a browser resize.
The code uses an MVC architecture, making future development easier to manage.
More features to be added....

Instructions:

The following code can be found at the end of static/js/graphsub.js please modify it to suit your needs. Your data must follow the format given in the example data-set. This can be found in /data/miserables.json More information on d3s' force layouts can be found here.

/*----------------------------------------------------------------------------`
The code example below:
1. Loads the JSON data.
2. Sets the width to 760px.
3. Set the height to 500px.
4. Displays all nodes within 2 hops of the selected node.
5. Attaches the chart to the DOM element with id #chart
*/

d3.json("data/miserables.json", function(error, graph) {
    if (error) throw error;

    // Parse JSON into the correct format if needed

    var chart = d3.graphSub()
                  .width(760)
                  .height(500)
                  .hops(2);

    d3.select("#chart")
      .datum(graph)
      .call(chart);
});

Want to contribute a bug fix or enhancement; then feel free to clone the repository and make a pull request.

A working example can be found here.

Example bl.ock.s used in the development of this graph:

Simple example of reusable d3 plugin

Force-based label placement

Force-Directed Graph

General Update Pattern, I

General Update Pattern, II

General Update Pattern, III

Animating Changes in Force Diagram