read earthquake data live, using Unity's WWW class, and turn that into a simple bar of a bar chart

barchart3.js

#pragma strict

import SimpleJSON;

public var min = 0;
public var max = 2;
public var url = "http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/4.5_month.geojson";
private var dataurl : WWW;
private var done = 0;

function Start ()
    {
    dataurl = new WWW(url);
    }
    
function Update()
	{
	if ((!done) && (dataurl.isDone))
		{
		Debug.Log(url + ' loaded');
	    var data = JSON.Parse(dataurl.text);
	    var i : int;
	    var mag : float;
	    var quantity : int = 0;
	    for (i=0; i < data["metadata"]["count"].AsInt; i++)
	        {
	        mag = data["features"][i]["properties"]["mag"].AsFloat;
	        if ((mag >= min) && (mag < max))
	        	quantity = quantity + 1;
	        }
	    Debug.Log('quantity = ' + quantity);
	    quantity = quantity/10.0;  // scale it down a bit to fit in the view better; this will depend on how many data points you have
	    transform.localScale = Vector3(1, quantity, 1);
	    transform.Translate(Vector3(0, quantity/2.0, 0));
	    done = 1;
	    }
    }