html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.gauges.linear([15, 20, 25, 30, 44]);

​

    var barPointer = chart.bar(4);

​

    // Get data index.

    var index = barPointer.dataIndex();

​

    for (var i = index; i >= 0; i--) {

        chart.bar(i);

    }

​

    chart.width(600).height(400);

    chart.title('Get pointer data index');

    chart.container('container');

    chart.draw();

});