柱状图echarts center配置项内容和展示

      var xdata = ['陆家所', '花桥所', '千灯所', '锦溪所', '兵希所', '淀山湖所', '城西所', '科教所', '同心所', '巴城所'];
var data = [192, 187, 150, 140, 134, 125, 110, 108, 98, 90];
var maxArr = [100, 100, 100];
var colorList = [new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
          offset: 0,
          color: '#FFA800'
        }, {
          offset: 1,
          color: 'rgba(255, 168, 0, 0)'
        }], false), new echarts.graphic.LinearGradient(0, 0, 1, 0, [{
          offset: 0,
          color: 'rgba(0, 251, 226, 0.94)'
        }, {
          offset: 1,
          color: ' rgba(35, 201, 255, 0)'
        }], false)]
option = {
    backgroundColor: "rgba(5,39,58,1)", //背景色
    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) { // params[0].data.nameCode
            let dot = '<span style="display:inline-block;margin-right:5px;border-radius:50%;width:10px;height:10px;background-color:#02C4DD"></span>';
            return (
              params[0].name +
              "<br>" +
              "数量 ：" +
              params[0].value
            );
        }
    },
    grid: {
        left: "4%",
        right: "4%",
        bottom: "3%",
        top: "15%",
        containLabel: true
    },
    xAxis: {
        data: xdata,
        triggerEvent: true,
        axisTick: {
            show: false
        },
        axisLine: {
            show: false
        },
        axisLabel: {
            show: true,
            rotate: 0,
            interval: 0,
            textStyle: {
                padding: [14,0,0,0],
                fontSize: 15,
                color: "#00F6FF"
            }
        }
    },
    yAxis: {
        triggerEvent: true,
        minInterval: 50,
        splitLine: {
            show: true,
            lineStyle: {
                color: 'rgba(77, 188, 224, 0.35)'
            }
        },
        axisTick: {
            show: false
        },
        axisLine: {
            show: false,
        },
        axisLabel: {
            show: true,
            textStyle: {
                color: "#CCCCCC",
                fontSize: 16
            }
        }
    },
    series: [{
            name: "数量",
            barMinHeight: 10,
            type: "pictorialBar",
            barCategoryGap: "60%",
            // path://M0,10 L20,10 C8,10 8,5 5,4.5 C2.5,5 2.5,10 -10,10 z
            symbol: "path://M10 0 L0 10 L20 10 Z",
            data: data.map((item, i) => {
                itemStyle = {
                    color: i > 0 ? colorList[1] : colorList[i]
                }
                return {
                    value: item,
                    itemStyle: itemStyle
                };
            }),
            label: {
                normal: {
                    show: true,
                    position: "top",
                    align: 'center',
                    textStyle: {
                        color: "#fff",
                        fontSize:20
                    },
                    rich: {
                        a1: {
                            width: 20,
                            height: 20,
                            borderRadius: '100% 100%',
                            padding: [0,0,0,0],
                            backgroundColor: {
                                image: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAABaklEQVQ4jZXTv0tXYRTH8VcXFyWixbG+DfbjC/0B0g9pEGuJMqOlf6ChNoPANaQhWlx0d4rKmipxUZvEzUH7MWT9A4GkDVFx8Fx8uBe+2IEHznM+933uc5/7OUf+LgxqRIURjOFkSt+wiBX8KR+vGvAFrOMZdvE2127WQrtYAn1FfhdPcR8vm8fCY0ykNon5ssHlhK/gYws9iIA3sIxtrPblZ8ziQQ1vbu+dxhOMJrqER91O/2d8wj3M4Xx9Yb/wIuGzWMMtHMsV+VpqEW/wM9gqb3uhOOY0jrcOv1+bLvavcS0anIoXF8JoCz2IsSLfwlDzN/53RIOv6BbgUo8mi0V+Dl+qLN4shCn8aKH7talifwPvqrTnAG5Htdvpj28bxivs5Ip8OLUaPhpsPQthpOeHMFLEmTTSnTBSfYmrac8QrveAQ4sTP0xGcxovYQa/0xth14gOxtP64dgPNdBrnK/iRNa+431rnPEPh9JZj7qud/EAAAAASUVORK5CYII='
                            }
                        },
                        a2: {
                            width: 20,
                            height: 20,
                            borderRadius: '100% 100%',
                            padding: [0,0,0,0],
                            backgroundColor: {
                                image: 'data:image/png;base64,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'
                            }
                        },
                        c: {
                            color: '#fff',
                            align: 'top',
                            fontSize: 16,
                            padding: [0,0,5,0]
                        }
                    },
                    formatter: function(data) {
                        if (data.dataIndex < 1) {
                            return [
                                '{c|' + data.value + '}'+ '\n' + '{a1|}'
                            ]
                        } else {
                            return [
                                '{c|' + data.value + '}'+ '\n' + '{a2|}'
                            ]
                        }
                    }
                }
            },
            z: 10
        },
        // {
        //     name: "hill",
        //     type: "bar",
        //     barWidth: '20%',
        //     symbol: "path://M0,10 L10,10 C5.5,10 5.5,5 5,0 C4.5,5 4.5,10 0,10 z",
        //     itemStyle: {
        //         normal: {
        //             color: "rgba(11,47,68,.8)"
        //         }
        //     },
        //     data: maxArr,
        //     z: 9
        // }
    ]
}