阶梯瀑布图echarts category配置项内容和展示

华商可转债债券C(005284)的阶梯瀑布图

配置项如下
      /*
arr数据来源:https://danjuanfunds.com/djapi/fund/nav/history/005284?size=99999&page=1
图表模板:https://echarts.apache.org/examples/zh/editor.html?c=bar-waterfall2
*/
var arr = [
    {
        "date": "2021-09-17",
        "nav": "1.8323",
        "percentage": "-1.46",
        "value": "1.8323"
    },
    {
        "date": "2021-09-16",
        "nav": "1.8595",
        "percentage": "-1.33",
        "value": "1.8595"
    },
    {
        "date": "2021-09-15",
        "nav": "1.8846",
        "percentage": "-0.91",
        "value": "1.8846"
    },
    {
        "date": "2021-09-14",
        "nav": "1.9020",
        "percentage": "-2.81",
        "value": "1.9020"
    },
    {
        "date": "2021-09-13",
        "nav": "1.9570",
        "percentage": "1.97",
        "value": "1.9570"
    },
    {
        "date": "2021-09-10",
        "nav": "1.9191",
        "percentage": "-2.0",
        "value": "1.9191"
    },
    {
        "date": "2021-09-09",
        "nav": "1.9582",
        "percentage": "3.54",
        "value": "1.9582"
    },
    {
        "date": "2021-09-08",
        "nav": "1.8913",
        "percentage": "-0.02",
        "value": "1.8913"
    },
    {
        "date": "2021-09-07",
        "nav": "1.8916",
        "percentage": "4.07",
        "value": "1.8916"
    },
    {
        "date": "2021-09-06",
        "nav": "1.8176",
        "percentage": "0.98",
        "value": "1.8176"
    },
    {
        "date": "2021-09-03",
        "nav": "1.8000",
        "percentage": "-0.76",
        "value": "1.8000"
    },
    {
        "date": "2021-09-02",
        "nav": "1.8138",
        "percentage": "2.89",
        "value": "1.8138"
    },
    {
        "date": "2021-09-01",
        "nav": "1.7628",
        "percentage": "-0.91",
        "value": "1.7628"
    },
    {
        "date": "2021-08-31",
        "nav": "1.7789",
        "percentage": "3.3",
        "value": "1.7789"
    },
    {
        "date": "2021-08-30",
        "nav": "1.7220",
        "percentage": "1.1",
        "value": "1.7220"
    },
    {
        "date": "2021-08-27",
        "nav": "1.7033",
        "percentage": "0.88",
        "value": "1.7033"
    },
    {
        "date": "2021-08-26",
        "nav": "1.6884",
        "percentage": "1.64",
        "value": "1.6884"
    },
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        "percentage": "0.92",
        "value": "1.6612"
    },
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        "nav": "1.6461",
        "percentage": "1.44",
        "value": "1.6461"
    },
    {
        "date": "2021-08-23",
        "nav": "1.6227",
        "percentage": "-0.02",
        "value": "1.6227"
    },
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        "date": "2021-08-20",
        "nav": "1.6231",
        "percentage": "0.18",
        "value": "1.6231"
    },
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        "percentage": "-1.47",
        "value": "1.6202"
    },
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        "percentage": "0.96",
        "value": "1.6444"
    },
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        "percentage": "-2.13",
        "value": "1.6287"
    },
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        "nav": "1.6641",
        "percentage": "-0.42",
        "value": "1.6641"
    },
    {
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        "percentage": "-0.02",
        "value": "1.6712"
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        "percentage": "1.3",
        "value": "1.6716"
    },
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        "percentage": "1.85",
        "value": "1.6501"
    },
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        "percentage": "1.0",
        "value": "1.6201"
    },
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        "date": "2021-08-09",
        "nav": "1.6041",
        "percentage": "1.1",
        "value": "1.6041"
    },
    {
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        "percentage": "0.99",
        "value": "1.5867"
    },
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        "value": "1.5712"
    },
    {
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        "value": "1.5855"
    },
    {
        "date": "2021-08-03",
        "nav": "1.5531",
        "percentage": "-2.25",
        "value": "1.5531"
    },
    {
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        "percentage": "2.15",
        "value": "1.5687"
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        "nav": "1.5357",
        "percentage": "-0.66",
        "value": "1.5357"
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        "nav": "1.5459",
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        "value": "1.5459"
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    },
    {
        "date": "2018-03-22",
        "nav": "0.9832",
        "percentage": "-0.79",
        "value": "0.9832"
    },
    {
        "date": "2018-03-21",
        "nav": "0.9910",
        "percentage": "-0.62",
        "value": "0.9910"
    },
    {
        "date": "2018-03-20",
        "nav": "0.9972",
        "percentage": "0.3",
        "value": "0.9972"
    },
    {
        "date": "2018-03-19",
        "nav": "0.9942",
        "percentage": "-0.9",
        "value": "0.9942"
    },
    {
        "date": "2018-03-16",
        "nav": "1.0032",
        "percentage": "-0.62",
        "value": "1.0032"
    },
    {
        "date": "2018-03-15",
        "nav": "1.0095",
        "percentage": "-0.24",
        "value": "1.0095"
    },
    {
        "date": "2018-03-14",
        "nav": "1.0119",
        "percentage": "-0.09",
        "value": "1.0119"
    },
    {
        "date": "2018-03-13",
        "nav": "1.0128",
        "percentage": "-0.44",
        "value": "1.0128"
    },
    {
        "date": "2018-03-12",
        "nav": "1.0173",
        "percentage": "0.78",
        "value": "1.0173"
    },
    {
        "date": "2018-03-09",
        "nav": "1.0094",
        "percentage": "-0.45",
        "value": "1.0094"
    },
    {
        "date": "2018-03-08",
        "nav": "1.0140",
        "percentage": "0.19",
        "value": "1.0140"
    },
    {
        "date": "2018-03-07",
        "nav": "1.0121",
        "percentage": "-1.04",
        "value": "1.0121"
    },
    {
        "date": "2018-03-06",
        "nav": "1.0227",
        "percentage": "1.54",
        "value": "1.0227"
    },
    {
        "date": "2018-03-05",
        "nav": "1.0072",
        "percentage": "-0.91",
        "value": "1.0072"
    },
    {
        "date": "2018-03-02",
        "nav": "1.0164",
        "percentage": "-1.38",
        "value": "1.0164"
    },
    {
        "date": "2018-03-01",
        "nav": "1.0306",
        "percentage": "-0.04",
        "value": "1.0306"
    },
    {
        "date": "2018-02-28",
        "nav": "1.0310",
        "percentage": "-0.25",
        "value": "1.0310"
    },
    {
        "date": "2018-02-27",
        "nav": "1.0336",
        "percentage": "-1.91",
        "value": "1.0336"
    },
    {
        "date": "2018-02-26",
        "nav": "1.0537",
        "percentage": "1.38",
        "value": "1.0537"
    },
    {
        "date": "2018-02-23",
        "nav": "1.0394",
        "percentage": "0.43",
        "value": "1.0394"
    },
    {
        "date": "2018-02-22",
        "nav": "1.0350",
        "percentage": "1.47",
        "value": "1.0350"
    },
    {
        "date": "2018-02-14",
        "nav": "1.0200",
        "percentage": "0.89",
        "value": "1.0200"
    },
    {
        "date": "2018-02-13",
        "nav": "1.0110",
        "percentage": "0.93",
        "value": "1.0110"
    },
    {
        "date": "2018-02-12",
        "nav": "1.0017",
        "percentage": "1.16",
        "value": "1.0017"
    },
    {
        "date": "2018-02-09",
        "nav": "0.9902",
        "percentage": "-4.2",
        "value": "0.9902"
    },
    {
        "date": "2018-02-08",
        "nav": "1.0336",
        "percentage": "-2.61",
        "value": "1.0336"
    },
    {
        "date": "2018-02-07",
        "nav": "1.0613",
        "percentage": "-2.27",
        "value": "1.0613"
    },
    {
        "date": "2018-02-06",
        "nav": "1.0859",
        "percentage": "-2.81",
        "value": "1.0859"
    },
    {
        "date": "2018-02-05",
        "nav": "1.1173",
        "percentage": "2.71",
        "value": "1.1173"
    },
    {
        "date": "2018-02-02",
        "nav": "1.0878",
        "percentage": "2.09",
        "value": "1.0878"
    },
    {
        "date": "2018-02-01",
        "nav": "1.0655",
        "percentage": "-0.48",
        "value": "1.0655"
    },
    {
        "date": "2018-01-31",
        "nav": "1.0706",
        "percentage": "0.88",
        "value": "1.0706"
    },
    {
        "date": "2018-01-30",
        "nav": "1.0613",
        "percentage": "-2.14",
        "value": "1.0613"
    },
    {
        "date": "2018-01-29",
        "nav": "1.0845",
        "percentage": "-1.0",
        "value": "1.0845"
    },
    {
        "date": "2018-01-26",
        "nav": "1.0954",
        "percentage": "0.16",
        "value": "1.0954"
    },
    {
        "date": "2018-01-25",
        "nav": "1.0937",
        "percentage": "0.61",
        "value": "1.0937"
    },
    {
        "date": "2018-01-24",
        "nav": "1.0871",
        "percentage": "1.3",
        "value": "1.0871"
    },
    {
        "date": "2018-01-23",
        "nav": "1.0731",
        "percentage": "1.8",
        "value": "1.0731"
    },
    {
        "date": "2018-01-22",
        "nav": "1.0541",
        "percentage": "1.18",
        "value": "1.0541"
    },
    {
        "date": "2018-01-19",
        "nav": "1.0418",
        "percentage": "1.05",
        "value": "1.0418"
    },
    {
        "date": "2018-01-18",
        "nav": "1.0310",
        "percentage": "0.98",
        "value": "1.0310"
    },
    {
        "date": "2018-01-17",
        "nav": "1.0210",
        "percentage": "0.12",
        "value": "1.0210"
    },
    {
        "date": "2018-01-16",
        "nav": "1.0198",
        "percentage": "0.8",
        "value": "1.0198"
    },
    {
        "date": "2018-01-15",
        "nav": "1.0117",
        "percentage": "-0.42",
        "value": "1.0117"
    },
    {
        "date": "2018-01-12",
        "nav": "1.0160",
        "percentage": "0.1",
        "value": "1.0160"
    },
    {
        "date": "2018-01-11",
        "nav": "1.0150",
        "percentage": "-0.34",
        "value": "1.0150"
    },
    {
        "date": "2018-01-10",
        "nav": "1.0185",
        "percentage": "0.38",
        "value": "1.0185"
    },
    {
        "date": "2018-01-09",
        "nav": "1.0146",
        "percentage": "-0.5",
        "value": "1.0146"
    },
    {
        "date": "2018-01-08",
        "nav": "1.0197",
        "percentage": "0.53",
        "value": "1.0197"
    },
    {
        "date": "2018-01-05",
        "nav": "1.0143",
        "percentage": "0.1",
        "value": "1.0143"
    },
    {
        "date": "2018-01-04",
        "nav": "1.0133",
        "percentage": "0.38",
        "value": "1.0133"
    },
    {
        "date": "2018-01-03",
        "nav": "1.0095",
        "percentage": "0.19",
        "value": "1.0095"
    },
    {
        "date": "2018-01-02",
        "nav": "1.0076",
        "percentage": "0.61",
        "value": "1.0076"
    },
    {
        "date": "2017-12-31",
        "nav": "1.0015",
        "percentage": "0.06",
        "value": "1.0015"
    },
    {
        "date": "2017-12-29",
        "nav": "1.0009",
        "percentage": "0.04",
        "value": "1.0009"
    },
    {
        "date": "2017-12-28",
        "nav": "1.0005",
        "percentage": "0.05",
        "value": "1.0005"
    },
    {
        "date": "2017-12-22",
        "nav": "1.0000",
        "value": "1.0000"
    }
];


let xAxis = [arr[arr.length - 1].date];
let barTotal = [0,arr[arr.length - 1].nav];
let upArr = ['-'];
let downArr = [0];

for(let i = arr.length - 2; i >= 0; i--){
  let item = arr[i];
  let itempre = arr[i + 1];
  xAxis.push(item.date);
  barTotal.push(Number(item.value));

  let percentage = Number(item.nav) - Number(itempre.nav);
  if(percentage > 0){
    upArr.push(Number(percentage));
    downArr.push('-');
  }else{
    upArr.push('-');
    downArr.push(Math.abs(percentage));
  }
}

option = {
    title: {
        text: '阶梯瀑布图',
        subtext: 'From ExcelHome',
        sublink: 'http://e.weibo.com/1341556070/Aj1J2x5a5'
    },
    tooltip: {
        trigger: 'axis',
        axisPointer: {            // 坐标轴指示器,坐标轴触发有效
            type: 'shadow'        // 默认为直线,可选为:'line' | 'shadow'
        },
        formatter: function (params) {
            var tar;
            if (params[1].value !== '-') {
                tar = params[1];
            }
            else {
                tar = params[0];
            }
            return tar.name + '<br/>' + tar.seriesName + ' : ' + tar.value;
        }
    },
    legend: {
        data: ['支出', '收入']
    },
    dataZoom: [
        {
            show: true,
            realtime: true,
            start: 95,
            end: 100,
            xAxisIndex: [0, 1]
        }
    ],
    grid: {
        left: '3%',
        right: '4%',
        bottom: '3%',
        containLabel: true
    },
    xAxis: {
        type: 'category',
        splitLine: {show: false},
        data: xAxis
    },
    yAxis: {
        type: 'value'
    },
    series: [
        {
            name: '辅助',
            type: 'bar',
            stack: '总量',
            itemStyle: {
                barBorderColor: 'rgba(0,0,0,0)',
                color: 'rgba(0,0,0,0)'
            },
            emphasis: {
                itemStyle: {
                    barBorderColor: 'rgba(0,0,0,0)',
                    color: 'rgba(0,0,0,0)'
                }
            },
            data: barTotal
        },
        {
            name: '收入',
            type: 'bar',
            stack: '总量',
            barMaxWidth:50,
            label: {
                show: false,
                position: 'top'
            },
            data: upArr
        },
        {
            name: '支出',
            type: 'bar',
            stack: '总量',
            label: {
                show: false,
                position: 'bottom'
            },
            data: downArr
        }
    ]
};
    
截图如下