Unable to use extent for currency data

[Ronak Bhandari]

    var context = cubism.context()
      .serverDelay(0)
      .clientDelay(0)
      .step(1e3)
      .size(960);

    function money(name) {
      var value = 0,
          values = [],
          i = 0,
          last;
      return context.metric(function(start, stop, step, callback) {
        $.getJSON("Website Link", function (api_data) {
          start = +start, stop = +stop;
          if (isNaN(last)) last = start;
          while (last < stop) {
            last += step;
            values.push(_.where(api_data,{"code": name})[0].rate);
          }
          callback(null, values = values.slice((start - stop) / step));
        });
      }, name);
    }

        var USD = money("USD"),
            EUR = money("EUR");
            INR = money("INR");

        d3.select(selection).call(function(div) {

          div.append("div")
              .attr("class", "axis")
              .call(context.axis().orient("top"));

          div.selectAll(".horizon")
              .data([USD, EUR, INR])
            .enter().append("div")
              .attr("class", "horizon")
              .call(context.horizon().format(d3.format(".2f")));

          div.append("div")
              .attr("class", "rule")
              .call(context.rule());

        });

        // On mousemove, reposition the chart values to match the rule.
        context.on("focus", function(i) {
          d3.selectAll(".value").style("right", i == null ? null : context.size() - i + "px");
        });

I am using the above code and the entire band for all the three currencies is having green color without the rates' variation. Check the image

Please help me out.!!! :(

[Ronak Bhandari]

I have figured out a solution. I now just need to have the data explicitly from the metric and do some calculation to set the extent. Can any one help me with getting the data from metric explicitly

[Glavin Wiechert]

My chart data is looking the same (solid, filled in, output). Did you find a solution for this?