Echarts设置背景的网格线为虚线

末蓝、 2022-10-22 02:56 306阅读 0赞

用Echarts写了一个折线图之后，现在不太喜欢背景网格线的实线  
需要改成虚线

![4c1cb30f1bdf7e2e92194db2695dda5f.png][]

Echarts设置背景的网格线为虚线的关键属性

yAxis: {
                splitLine: {
                    show: true,
                    lineStyle:{
                        type:'dashed'
                    }
                }
            },

示例代码：

<!DOCTYPE html>
    <html>
        <head>
            <meta charset="UTF-8">
            <title></title>
            <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
            <script src="https://cdn.bootcss.com/echarts/4.2.1-rc1/echarts.min.js" type="text/javascript"></script>
        </head>
        <body>
            
            <div id="main" class="col-md-12  col-sm-12 col-xs-12" style="height: 400px;"></div>
            <script>
                // 折线图
                var names = []; //类别数组(实际用来盛放X轴坐标值)    
                var series = [];
                $.ajax({
                    url: "test.json",
                    data: {},
                    type: 'GET',
                    success: function(data) {
                        //请求成功时执行该函数内容，data即为服务器返回的json对象           
                        $.each(data.data, function(index, item) {
                            names.push(item.statTime); //挨个取出类别并填入类别数组
                            series.push(item.noPatrolNum);
                        });
                        hFun(names, series);
                    },
                });
                // 心率
                var hrChart = echarts.init(document.getElementById("main"));
    
                function hFun(x_data, y_data) {
                    hrChart.setOption({
                        color: ['#1e63d8'],
                        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'
                            }
                        },
                        legend: {
                            data: ['漏检次数']
                        },
                        grid: {
                            left: '3%',
                            right: '20%',
                            bottom: '20%',
                            containLabel: true
                        },
                        xAxis: {
    
                            type: 'category',
                            data: x_data,
                        },
                        yAxis: { // 纵轴标尺固定
                            splitLine: {
                                show: true,
                                lineStyle: {
                                    type: 'dashed'
                                }
                            },
    
                            type: 'value',
                            scale: true,
                            name: '漏检次数',
                            min: 0, // 就是这两个 最小值
                            max: 'dataMax', // 最大值
                            splitNumber: 10,
    
                            boundaryGap: [0.2, 0.2]
                        },
                        series: [{
                            name: '漏检次数',
                            type: 'line',
                            symbol: 'circle', // 折线点设置为实心点
                            symbolSize: 6, // 折线点的大小
    
    
                            data: y_data
                        }]
                    }, true);
                }
            </script>
        </body>
    </html>

json数据

{
        "msg": "查询成功",
        "code": 1,
        "data": [{      
            "statTime": "2021-01",      
            "noPatrolNum": 12
        }, {      
            "statTime": "2021-02",      
            "noPatrolNum": 21
        },{      
            "statTime": "2021-03",      
            "noPatrolNum": 27
        },{        
            "statTime": "2021-04",
            "noPatrolNum": 15
        }]
    }

Echarts设置背景的网格线为虚线的效果

![05d00cd683fce6448ba16c7a2e27885f.png][]

[4c1cb30f1bdf7e2e92194db2695dda5f.png]: /images/20221022/5caf3e5f5469435a863fc94d347a0cbd.png
[05d00cd683fce6448ba16c7a2e27885f.png]: /images/20221022/629104c822074f4db721fddc19bae41f.png