echarts单个实例包含多个grid（单实例多图标），标题分别居中

程序员文章站 2022-05-07 16:28:30
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整体结构
https://www.cnblogs.com/ytwanzi/p/6640989.html
详细说明
https://www.cnblogs.com/fengxin666/p/10655133.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>单个实例包含多个grid，标题分别居中</title>
</head>
<body>
    <!-- 创建一个具备一定宽高的DOM容器 -->
    <div id='main' style='width:600px;height:600px'></div>
    <script type="text/javascript" src='./echarts.js'></script>
    <script>
        //基于创建好的DOM，初始化一个echarts实例
        var myChart = echarts.init(document.getElementById('main'));
        //指定图表的配置项和数据
        var titles = ['气温变化','空气质量指数','C','D'];
        var dataAll = [
            [
                [10.0, 8.04],
                [8.0, 6.95],
                [13.0, 7.58],
                [9.0, 8.81],
                [11.0, 8.33],
                [14.0, 9.96],
                [6.0, 7.24],
                [4.0, 4.26],
                [12.0, 10.84],
                [7.0, 4.82],
                [5.0, 5.68]
            ],
            [
                [10.0, 9.14],
                [8.0, 8.14],
                [13.0, 8.74],
                [9.0, 8.77],
                [11.0, 9.26],
                [14.0, 8.10],
                [6.0, 6.13],
                [4.0, 3.10],
                [12.0, 9.13],
                [7.0, 7.26],
                [5.0, 4.74]
            ],
            [
                [10.0, 7.46],
                [8.0, 6.77],
                [13.0, 12.74],
                [9.0, 7.11],
                [11.0, 7.81],
                [14.0, 8.84],
                [6.0, 6.08],
                [4.0, 5.39],
                [12.0, 8.15],
                [7.0, 6.42],
                [5.0, 5.73]
            ],
            [
                [8.0, 6.58],
                [8.0, 5.76],
                [8.0, 7.71],
                [8.0, 8.84],
                [8.0, 8.47],
                [8.0, 7.04],
                [8.0, 5.25],
                [19.0, 12.50],
                [8.0, 5.56],
                [8.0, 7.91],
                [8.0, 6.89]
            ]
        ];
        var markLineOpt = {
            animation:false,
            //图形上的文本标签
            label:{
                normal:{
                    formatter:'y=0.5*x+3',
                    textStyle:{
                        align:'right'
                    }
                }
            },
            lineStyle:{
                normal:{
                    type:'solid'
                }
            },
            tooltip:{
                formatter:'y=0.5*x+3'
            },
            data:[[{
                //起点或终点的坐标
                coord:[0,3],
                symbol:'none'
            },{
                coord:[20,13],
                symbol:'none'
            }]]
        }
        var option = {
                        //分别设置标题居中主要代码
            title:[
                {
                    text:titles[0],
                    left:'25%',
                    top:'1%',
                    textAlign:'center'
                },
                {
                    text:titles[1],
                    left:'73%',
                    top:'1%',
                    textAlign:'center'
                },
                {
                    text:titles[2],
                    left:'25%',
                    top:'50%',
                    textAlign:'center'
                },
                {
                    text:titles[3],
                    left:'73%',
                    top:'50%',
                    textAlign:'center'
                }
                
            ],
            grid:[
                {x:'7%',y:'7%',width:'38%',height:'38%'},
                {x2:'7%',y:'7%',width:'38%',height:'38%'},
                {x:'7%',y2:'7%',width:'38%',height:'38%'},
                {x2:'7%',y2:'7%',width:'38%',height:'38%'}
            ],
            tooltip:{
                formatter:'Group {a}:({c})'
            },
            xAxis:[
                {gridIndex:0,min:0,max:20},
                {gridIndex:1,min:0,max:20},
                {gridIndex:2,min:0,max:20},
                {gridIndex:3,min:0,max:20}
            ],
            yAxis:[
                {gridIndex:0,min:0,max:15},
                {gridIndex:1,min:0,max:15},
                {gridIndex:2,min:0,max:15},
                {gridIndex:3,min:0,max:15}
            ],
            series:[
                {
                    name:'I',
                    type:'scatter',
                    xAxisIndex:0,
                    yAxisIndex:0,
                    data:dataAll[0],
                    markLine:markLineOpt
                },
                {
                    name:'II',
                    type:'scatter',
                    xAxisIndex:1,
                    yAxisIndex:1,
                    data:dataAll[1],
                    markLine:markLineOpt
                },
                {
                    name:'III',
                    type:'scatter',
                    xAxisIndex:2,
                    yAxisIndex:2,
                    data:dataAll[2],
                    markLine:markLineOpt
                },
                {
                    name:'IV',
                    type:'scatter',
                    xAxisIndex:3,
                    yAxisIndex:3,
                    data:dataAll[3],
                    markLine:markLineOpt
                }
            ]
        };
        //显示图表
        myChart.setOption(option);
    </script>
</body>
</html>
二、图表图片

echarts单个实例包含多个grid（单实例多图标），标题分别居中