Echarts3d动态柱状图

img

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import { getEcharts3DBar } from './getEcharts3DBar';  
import * as echarts from 'echarts'  
export default{
methods:{
            init3DBar(){
                const fn=()=>{
        let option=getEcharts3DBar(this.xData,this.yData, '01') 
// x轴类型['品类一','品类二',...]  y轴数据[32,52,63,52,...], 颜色类型
        if (this.endValue == this.xData.length) {
          this.endValue = 6;  
          this.startValue = 0; // 起始点
        } else {
          this.endValue ++;
          this.startValue++
        }
        option.dataZoom[0].startValue=this.startValue
        option.dataZoom[0].endValue=this.endValue
        this.myChart.setOption(option);
                }
                fn()
               this.timer= setInterval(fn,3000)
            }
}
}

getEcharts3DBar.js

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export const getEcharts3DBar=function getEcharts3DBar (xAxisData, data, colorType='01') {
    var colorArr = [];
    if (colorType == '01') {
        colorArr = ["#2886c6", "#50bfda", "#89e3ec"];
    } else {
        colorArr = ["#28c1c6", "#50dac0", "#87e8c7"];
    }
    var color = {
        type: "linear",
        x: 0,
        x2: 1,
        y: 0,
        y2: 0,
        colorStops: [
            {
            offset: 0,
            color: colorArr[0],
            },
            {
            offset: 0.5,
            color: colorArr[0],
            },
            {
            offset: 0.5,
            color: colorArr[1],
            },
            {
            offset: 1,
            color: colorArr[1],
            },
        ],
    };
    var barWidth = 30;
    var constData = [];
    var showData = [];
    data.filter(function (item) {
    if (item) {
        constData.push(1);
        showData.push(item);
    } else {
        constData.push(0);
        showData.push(
         {
            value: 1,
            itemStyle: {
              normal: {
                borderColor: "rgba(0,0,0,0)",
                borderWidth: 2,
                color: "rgba(0,0,0,0)",
              },
            },
         }
        );
    }
    });
    return {
        tooltip: {
            trigger: "axis",
            // formatter: function (params) {
            // var str = params[0].axisValue + "：";
            // params.filter(function (item) {
            //     if (item.componentSubType == "bar") {
            //     str += "<br/>" + item.seriesName + "：" + item.value;
            //     }
            // });
            // return str;
            // },
        },
        grid: {
            left: "0%", //图表距边框的距离
            right: "0%",
            top: "10%",
            bottom: "12%",
            containLabel: false,
        },
        xAxis: {
            data: xAxisData,
            axisTick: {
            show: true,
            },
            axisLabel: {
              // rotate: '30',
              fontSize:10,
            show: true,
            color:'#fff'
            },
        },
        yAxis: {
          splitLine:{
            show:true,
            lineStyle:{
              color:"rgba(255,255,255,.2)"
            }
          },
            axisTick: {
            show: false,
            },
            axisLine: {
            show: false,
            },
            axisLabel: {
            show: false,
            },
        },
        dataZoom: [
            //滑动条
            {
              xAxisIndex: 0, //这里是从X轴的0刻度开始
              show: false, //是否显示滑动条，不影响使用
              type: "slider", // 这个 dataZoom 组件是 slider 型 dataZoom 组件
              startValue: 0, // 从头开始。
              endValue: 6, // 一次性展示6个。
            }],
        series: [
            {
	            z: 1,
	            name: '签到人数',
	            type: "bar",
	            barWidth: barWidth,
	            barGap: "0%",
	            data: data,
	            itemStyle: {
	                normal: {
	                color: color,
                  label: {
									show: true, //开启显示
									position: 'top', //在上方显示
									textStyle: { //数值样式
										color: '#fff',
										fontSize: 12
									}}
	                },
	            },
            },
            {
	            z: 2,
	            name: '数据',
	            type: "pictorialBar",
	            data: constData,
	            symbol: "diamond",
	            symbolOffset: ["0%", "50%"],
	            symbolSize: [barWidth, 10],
	            itemStyle: {
	                normal: {
	                color: color,
	                },
	            },
	            tooltip: {
	                show: false,
	            },
            },
            {
	            z: 3,
	            name: '数据',
	            type: "pictorialBar",
	            symbolPosition: "end",
	            data: showData,
	            symbol: "diamond",
	            symbolOffset: ["0%", "-50%"],
	            symbolSize: [barWidth - 4, (10 * (barWidth - 4)) / barWidth],
	            itemStyle: {
	                normal: {
	                borderColor: colorArr[2],
	                borderWidth: 2,
	                color: colorArr[2],
	                },
	            },
	            tooltip: {
	                show: false,
	            },
            },
        ],
    };
}