页面历史

/**
 * 宏类型：ClientSide（服务端）
 * 对象：chart
 * 事件：afterRenderer
 */
 function main(chartView) {
    var options = chartView.getChartObject().getOptions();
    var series = options.series;
    var totals = buildTotal(series);
    var lastIndex = series.length - 1;
    series[lastIndex].label = {
        normal: {
            position: 'top',
            show: true,
            formatter: function(a) {
                return totals[a.dataIndex];
            }
        },
        emphasis: {
            position: 'top',
            show: true,
            formatter: function(a) {
                return totals[a.dataIndex];
            }
        }
    }
    chartView.getChartObject().getChart().setOption(options);
}
function buildTotal(series) {
    var totalLength = series[0].data.length;
    var totals = [];
    for (var k = 0; k < totalLength; k++) {
        totals[k] = 0;
    }
    for (var i = 0; i < series.length; i++) {
        for (var j = 0; j < series[i].data.length; j++) {
            totals[j] += getValue(series[i].data[j].value);
        }
    }
    return totals;
}

//获取数据项的值
function getValue(value) {
    if (value instanceof ArrayArray.isArray(value)) {
        return value[1];
    } else {
        value;
    }
}