html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.gauges.circular();

    chart.data([{value: 7.5}]);

    chart.axis();

​

    chart.needle(0);

    chart.needle(1);

​

    var getData = chart.data();

​

    // Add new element by adding new element to data array.

    var newData = getData.concat([{value: 10}]);

​

    chart.data(newData);

​

    chart.title('Get and modify chart data');

    chart.container('container');

    chart.draw();

});