Data Visualizer

I have a set of data and want to present the data into an html5 graph that shows how the parent is connected to the children like a molecule surrounded by atoms or planets around the son. I should be able to use my own icons for parent and child nodes. The module will be integrated into CodeIgniter once completed. If you have done something similar, please send me demo. Please give me an estimate to create. I attached a sample of how it could look.