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;
	if (series && series[0]) {
    	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 (Array.isArray(value)) {
        return value[1];
    } else {
        value;
    }
}