function main(chartView) {
    var chart = chartView.getChartObject();
    var options = chart.getOptions();
    var dataset = options.dataset;
    for (var i = 0; i < dataset.length; i++) {
        var datas = dataset[i];
        //datas.anchorSides = i + 3;
        datas.anchorBGColor = datas.color;
    }
}