epmet-work-uni/pages/information/echartsCallBack.js

import * as echarts from '../../static/echarts.js';
function initLineChart(canvas, width, height, dpr, xData) {
    const chart = echarts.init(canvas, null, {
        width: width,
        height: height,
        devicePixelRatio: dpr // new
    });

    canvas.setChart(chart);
    var option = {
        title: {
            text: '线状图',
            left: 'center'
        },
        legend: {
            data: ['A', 'B', 'C'],
            top: 30,
            left: 'center',
            z: 100
        },
        grid: {
            containLabel: true
        },
        tooltip: {
            show: true,
            trigger: 'axis'
        },
        xAxis: {
            type: 'category',
            boundaryGap: false,
            data: xData
            // show: false
        },

        yAxis: {
            x: 'center',
            type: 'value',
            splitLine: {
                lineStyle: {
                    type: 'dashed'
                }
            }
            // show: false
        },

        series: [
            {
                name: 'A',
                type: 'line',
                smooth: true,
                data: [18, 36, 65, 30, 78, 40, 33]
            },
            {
                name: 'B',
                type: 'line',
                smooth: true,
                data: [12, 50, 51, 35, 70, 30, 20]
            },
            {
                name: 'C',
                type: 'line',
                smooth: true,
                data: [10, 30, 31, 50, 40, 20, 10]
            }
        ]
    };
    chart.setOption(option);
    return chart;
}
export { initLineChart };