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echarts做飞线图

 先上图,要不感觉没有说服力:

飞线图应该是大屏中很常见的365体育投注了,通常你可以很轻易的用datav做一个飞线图,而且datav做的大屏逼格真的很高,本身也是开源免费的项目,开箱即用,上手简单……行了回归正题,365bet体育在线们使用echarts自己配置一个飞线图。当然echarts配置起来也不复杂,只要查看下面对应几个属性的配置就ok了

  • geo
  • serise 里的effectScatter
  • serise 里的lines 

  三个配置,geo画地图,effectScatter在地图上画散点图,lines画线集,熟悉echarts配置项的看到这里基本就不用看了,自己看下配置文档马上就能撸一个出来,接下来365bet体育在线们按部就班把上面那个例子撸出来。

    1、基础环境准备

  

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>飞线图</title>
    <script src="https://cdn.bootcss.com/echarts/4.4.0-rc.1/echarts-en.js"></script>
    <style>
        html{
            height: 100%;
        }
        body{
            height: 100%;
            margin: 0;
            padding: 0;
            background-color:#2F4056;
        }
    </style>
</head>
<body>    
<div id="chart-box" style="width:100%; height:100%;"></div>
    <script type="text/javascript">
        const chart = echarts.init(document.getElementById('chart-box'));

        const xhr = new XMLHttpRequest();
        xhr.open('get','https://geo.datav.aliyun.com/areas/bound/530000_full.json',true)
        xhr.send(null)
        xhr.onreadystatechange = () => {
            if ((xhr.status >= 200 && xhr.status < 300) || xhr.status == 304){
                const data = JSON.parse(xhr.responseText);

            } else {
                alert(xhr.status);
            }
        }
    </script>
</body>

 

这里为了简便处理,直接引用cdn上的echarts和datav官方的地图json文件,当然地图json文件也可以从http://geojson.io/#map=12/30.2275/120.1777获得;

好了,上面代码已经初始化了chart容器,然后请求获取了云南省地图json数据

 2、画地图

          echarts.registerMap('yns', data);
            const option ={
                title: {
                    text: '云南省',
                },
                geo: {
                    map: 'yns',
                    zlevel: 10,
                    show:true,
                    layoutCenter: ['50%', '50%'],
                    roam: false,
                    layoutSize: "90%",
                    zoom: 1,
                    label: {
                        normal: {
                            show: true,
                            textStyle:{
                                fontSize:12,
                                color: '#43D0D6'
                            }
                        }
                    },
                    itemStyle: {
                        normal: {
                            color: '#062031',
                            borderWidth: 1.1,
                            borderColor: '#43D0D6'
                        }
                    },
                    emphasis: {
                            areaColor: '#FFB800',
                            label:{
                                show:false
                            }
                        }
                }
            }
            chart.setOption(option);

好了,这个geo配置已经能画出一个完整的云南地图了,这里因为要在地图上画线集和散点,所画地图要用geo而不是serise的map

3、配置散点和线集,具体的配置项的含义请参考echarts官网,下面附上完整代码,此代码直接复制粘在html,在有网络的环境下打开就能运行

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>飞线图</title>
    <script src="https://cdn.bootcss.com/echarts/4.4.0-rc.1/echarts-en.js"></script>
    <style>
        html{
            height: 100%;
        }
        body{
            height: 100%;
            margin: 0;
            padding: 0;
            background-color:#2F4056;
        }
    </style>
</head>
<body>    
<div id="chart-box" style="width:100%; height:100%;"></div>
    <script type="text/javascript">
        const chart = echarts.init(document.getElementById('chart-box'));

        const xhr = new XMLHttpRequest();
        xhr.open('get','https://geo.datav.aliyun.com/areas/bound/530000_full.json',true)
        xhr.send(null)
        xhr.onreadystatechange = () => {
            if ((xhr.status >= 200 && xhr.status < 300) || xhr.status == 304){
                const data = JSON.parse(xhr.responseText);
                  console.log(Object.prototype.toString(data))
                const coord = data.features.map(val => {
                return {
                    name:val.properties.name,
                    value:val.properties.center
                }
            })
            const lines_coord = [];
            coord.forEach((v,index)=> {
                index > 0 && lines_coord.push({
                    coords:[v.value,coord[0].value]
                })
            })
            //地市取简称
            data.features.forEach(v => {
                v.properties.name = v.properties.name.indexOf('版纳')>-1 ?v.properties.name.substr(0,4) : v.properties.name.substr(0,2);
            })
            echarts.registerMap('yns', data);
            const option ={
                title: {
                    text: '云南省',
                },
                geo: {
                    map: 'yns',
                    zlevel: 10,
                    show:true,
                    layoutCenter: ['50%', '50%'],
                    roam: false,
                    layoutSize: "90%",
                    zoom: 1,
                    label: {
                        normal: {
                            show: true,
                            textStyle:{
                                fontSize:12,
                                color: '#43D0D6'
                            }
                        }
                    },
                    itemStyle: {
                        normal: {
                            color: '#062031',
                            borderWidth: 1.1,
                            borderColor: '#43D0D6'
                        }
                    },
                    emphasis: {
                            areaColor: '#FFB800',
                            label:{
                                show:false
                            }
                        }
                },
                series: [
                    {
                        type:'effectScatter',
                        coordinateSystem: 'geo',
                        zlevel: 15,
                        symbolSize:8,
                        rippleEffect: {
                            period: 4, brushType: 'stroke', scale: 4
                        },
                        itemStyle:{
                            color:'#FFB800',
                            opacity:1
                        },
                        data:coord.slice(1)
                    },
                    {
                        type:'effectScatter',
                        coordinateSystem: 'geo',
                        zlevel: 15,
                        symbolSize:12,
                        rippleEffect: {
                            period: 6, brushType: 'stroke', scale: 8
                        },
                        itemStyle:{
                            color:'#FF5722',
                            opacity:1
                        },
                        data:coord.slice(0,1)
                    },
                    {
                        type:'lines',
                        coordinateSystem:'geo',
                        zlevel: 15,
                       
                        effect: {
                            show: true, period: 5, trailLength: 0, symbol: 'arrow',  color:'#01AAED',symbolSize: 8,
                        },
                        lineStyle: {
                            normal: {width: 1.2, opacity: 0.6, curveness: 0.2, color: '#FFB800'}
                        },
                        data:lines_coord
                    }

                ]
            }
            chart.setOption(option);
            chart.on('click', function (params) {
                console.log(params);
            });
            } else {
                alert(xhr.status);
            }
        }
    </script>
</body>

 

posted @ 2020-02-18 16:13  逸丶风  阅读(...)  评论(...编辑  收藏