D3.js Quick Start Guide

Creating a simulation

Now, we'll generate a simulation by adding the following to the bottom of app.js:

d3.forceSimulation()

Note that this simply creates a simulation; it doesn't specify how the simulation should run. Let's tell it which data to act on by modifying the previous line of code, as follows:

d3.forceSimulation()
    .nodes(nodesData) // add this line