今天,我们采用echarts数据可视化图形来做一个简单的数据可视化页面。
其中,涉及到一些css文件、js文件等等,都可以在这个博主的github上下载到,路过的小伙伴欢迎star!!
Echarts-Demo/css at master · nichan-13/Echarts-Demo · GitHub,从github上下载好文件之后,只需要放在相应位置就可以了。
如果有什么地方代码不清楚不明白的,可以看看这个老师的b站视频,强烈安利,老师讲的很详细!!!ECharts数据可视化项目-大屏数据可视化展示-echarts 图表制作-pink老师直播课更新完毕)_哔哩哔哩_bilibili
步骤:
1、先布置框架,代码文件的框架为:
2、制作echarts可视化看板的“head”头部部分:
其中包括两个部分:
- 整个echarts可视化看板的标题
- 展示当前的时间
(1)css文件中的head头部代码部分为:
// css 初始化
* {
margin: 0;
padding: 0;
box-sizing: border-box;
// overflow: hidden;
}
li {
list-style: none; // 去掉前面的圆点
}
// 声明字体
@font-face {
font-family: electronicFont;
src: url(../font/DS-DIGIT.TTF);
}
body {
background: url(../images/bg.jpg) no-repeat top center;
line-height: 1.15;
}
header {
position: relative;
height: 1.25rem;
background: url(../images/head_bg.png) no-repeat;
background-size: 100% 100%;
h1 {
font-size: .475rem;
color: rgba(255, 255, 255, 0.87);
text-align: center;
line-height: 1rem;
}
.show-time {
position: absolute;
top: 0;
right: .375rem;
line-height: .9375rem;
color: rgba(255, 255, 255, 0.7);
font-size: 0.25rem;
}
}
(2)html文件中的head头部代码部分为:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>数据可视化</title>
<link rel="stylesheet" href="css/index.css" />
</head>
<body>
<!-- 头部 -->
<header>
<h1>数据可视化-ECharts</h1>
<div class="show-time"></div>
<script>
// 格式:当前时间:2022年5月3日-13时20分24秒
var t = null;
t = setTimeout(time, 1000); //开始运行
function time() {
clearTimeout(t); //清除定时器
dt = new Date();
var y = dt.getFullYear();
var mt = dt.getMonth() + 1;
var day = dt.getDate();
var h = dt.getHours(); //获取时
var m = dt.getMinutes(); //获取分
var s = dt.getSeconds(); //获取秒
document.querySelector(".show-time").innerHTML = "当前时间:" + y + "年" + mt + "月" + day + "日-" + h + "时" + m + "分" + s + "秒";
t = setTimeout(time, 1000); //设定定时器,循环运行
}
</script>
</header>
</body>
</html>
(3)浏览器显示的页面效果:
3、布局“页面主体盒子”部分
其中包括几个部分:
- 左边盒子包含三个echarts可视化图
- 中间盒子放一个地图map
- 右边盒子包含三个echarts可视化图
(1)css文件中的head头部代码部分为:
// 页面主体盒子
.mainbox {
display: flex;
min-width: 1024px;
max-height: 1920px;
margin: 0 auto;
padding: .125rem .125rem 0; // 上、左右边距
.column {
flex: 3; // 整个页面分为三列
}
.column:nth-child(2) {
flex: 5;
margin: 0 .125rem .1875rem; // 外边距
// 图片旋转有时会超出屏幕最大位置导致滚动条自动上下移动
overflow: hidden;
}
.panel {
position: relative;
height: 3.875rem;
padding: 0 .1875rem .5rem;
margin-bottom: .1875rem; // 下外边距
border: 1px solid rgba(25, 186, 139, 0.17);
background: url(../images/line.png) rgba(255, 255, 255, 0.03); // 背景
// 伪元素:设置小边框
&::before {
position: absolute;
top: 0;
left: 0;
width: 10px;
height: 10px;
border-left: 2px solid #02a6b5;
border-top: 2px solid #02a6b5;
content: '';
}
&::after {
position: absolute;
top: 0;
right: 0;
width: 10px;
height: 10px;
border-right: 2px solid #02a6b5;
border-top: 2px solid #02a6b5;
content: '';
}
.panel-footer {
position: absolute;
bottom: 0;
left: 0;
width: 100%;
&::before {
position: absolute;
bottom: 0;
left: 0;
width: 10px;
height: 10px;
border-left: 2px solid #02a6b5;
border-bottom: 2px solid #02a6b5;
content: '';
}
&::after {
position: absolute;
bottom: 0;
right: 0;
width: 10px;
height: 10px;
border-right: 2px solid #02a6b5;
border-bottom: 2px solid #02a6b5;
content: '';
}
}
h2 {
height: .6rem;
color: #fff;
line-height: .6rem;
text-align: center;
font-size: 0.25rem;
font-weight: 400;
a {
color: rgb(167, 167, 167);
text-decoration: none;
margin: 0 .125rem;
}
.a-active {
color: #fff;
}
}
.chart {
height: 3rem;
}
}
}
(2)html文件中的head头部代码部分为:
<!-- 页面主体部分 -->
<section class="mainbox">
<!-- 左侧盒子 -->
<div class="column">
<div class="panel bar">
<h2>柱形图-就业行业</h2>
<!-- 图表放置盒子 -->
<div class="chart"></div>
<!-- 伪元素绘制盒子下边角 -->
<div class="panel-footer"></div>
</div>
<div class="panel line">
<h2>折线图-人员变化
<a class="a-active" href="javascript:;">2020</a>
<a href="javascript:;">2021</a>
</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
<div class="panel pie">
<h2>饼形图-年龄分布</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
</div>
<!-- 中间盒子 -->
<div class="column">
<!-- 头部 no模块 -->
<div class="no">
<div class="no-hd">
<ul>
<li>12434</li>
<li>10983</li>
</ul>
</div>
<div class="no-bd">
<ul>
<li>前端需求人数</li>
<li>市场供应人数</li>
</ul>
</div>
</div>
<!-- map模块 -->
<div class="map">
<div class="map1"></div>
<div class="map2"></div>
<div class="map3"></div>
<div class="chart"></div>
</div>
</div>
<!-- 右侧盒子 -->
<div class="column">
<div class="panel bar2">
<h2>折线图-播放量</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
<div class="panel line2">
<h2>柱形图-就业行业</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
<div class="panel pie2">
<h2>饼形图-地区分布</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
</div>
</section>
其中,要注意不要忘记引用js文件:
<script src="js/flexible.js"></script> <script src="js/echarts.min.js"></script> <script src="js/jquery.js"></script> <script src="js/index.js"></script>
(3)浏览器显示的页面效果:
4、接下来需要将echarts可视化图导入到类名为“chart”的“div”标签中
其中包括几个部分:
- 左边盒子中的三个echarts可视化图:柱状图1、折线图1、饼图1
- 中间盒子中的地图map,包括四个部分:map1、map2、map3、地图
- 右边盒子包含三个echarts可视化图:柱状图2、折线图2、饼图2
(1)css文件中的head头部代码部分为:
// no数字模块
.no {
background-color: rgba(101, 132, 226, 0.1);
padding: .1875rem; // 边距
.no-hd {
position: relative;
border: 1px solid rgba(25, 186, 139, 0.17);
&::before {
position: absolute;
top: 0;
left: 0;
width: .375rem;
height: .125rem;
border-top: 2px solid #02a6b5;
border-left: 2px solid #02a6b5;
content: '';
}
&::after {
position: absolute;
bottom: 0;
right: 0;
width: .375rem;
height: .125rem;
border-bottom: 2px solid #02a6b5;
border-right: 2px solid #02a6b5;
content: '';
}
ul {
display: flex;
li {
position: relative;
flex: 1; // 每一个小li各占一份
line-height: 1rem;
font-size: .875rem;
color: #ffeb7b;
text-align: center;
font-family: electronicFont;
&:first-child::after {
content: '';
position: absolute;
top: 25%;
right: 0;
height: 50%;
width: 1px;
background-color: rgba(255, 255, 255, 0.3);
}
}
}
}
.no-bd {
ul {
display: flex;
li {
flex: 1; // 小例各占一份
text-align: center;
color: rgba(255, 255, 255, 0.7);
font-size: .225rem;
height: .5rem;
line-height: .5rem;
padding-top: .125rem;
}
}
}
}
.map {
position: relative;
height: 10.125rem;
.map1 { // 球体图片模块
width: 6.475rem;
height: 6.475rem;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: url(../images/map.png);
background-size: 100% 100%; // 保证缩放
opacity: 0.3;
}
.map2 { // 旋转球体模块
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 8.0375rem;
height: 8.0375rem;
background: url(../images/lbx.png);
background-size: 100% 100%;
animation: rotate1 15s linear infinite; // 顺时针匀速旋转,无限循环
opacity: .6;
}
.map3 {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 7.075rem;
height: 7.075rem;
background: url(../images/jt.png);
background-size: 100% 100%;
animation: rotate2 10s linear infinite; // 逆时针匀速旋转,无限旋转
}
.chart {
position: absolute;
top: 0;
left: 0;
height: 10.125rem;
width: 100%;
}
@keyframes rotate1 {
from {
transform: translate(-50%, -50%) rotate(0deg);
}
to {
transform: translate(-50%, -50%) rotate(360deg);
}
}
@keyframes rotate2 {
from {
transform: translate(-50%, -50%) rotate(360deg);
}
to {
transform: translate(-50%, -50%) rotate(0deg);
}
}
}
/* 约束屏幕尺寸 */
@media screen and (max-width: 1024px) {
html {
font-size: 42px !important;
}
}
@media screen and (min-width: 1920px) {
html {
font-size: 80px !important;
}
}
(2)需要在index.js文件中编写这些echarts可视化图,
// 立即执行函数,防止变量污染 (function() {})();
// 柱状图模块1
(function () {
// 1.实例化对象
var myChart = echarts.init(document.querySelector(".bar .chart"));
// 2.指定配置项和数据
var option = {
color: ['#2f89cf'],
// 提示框组件
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'
}
},
// 修改图表位置大小
grid: {
left: '0%',
top: '10px',
right: '0%',
bottom: '4%',
containLabel: true
},
// x轴相关配置
xAxis: [{
type: 'category',
data: ["旅游行业", "教育培训", "游戏行业", "医疗行业", "电商行业", "社交行业", "金融行业"],
axisTick: {
alignWithLabel: true
},
// 修改刻度标签,相关样式
axisLabel: {
color: "rgba(255,255,255,0.6)", // 将刻度标签文字设置为白色
fontSize: 10
},
// x轴样式不显示
axisLine: {
show: false
}
}],
// y轴相关配置
yAxis: [{
type: 'value',
// 修改刻度标签,相关样式
axisLabel: {
color: "rgba(255,255,255,0.6)",
fontSize: 12
},
// y轴样式修改
axisLine: {
lineStyle: {
color: "#fff",
width: 2
}
},
// y轴分割线的颜色
splitLine: {
lineStyle: {
color: "rgba(255,255,255,0.1)"
}
}
}],
// 系列列表配置
series: [{
name: '直接访问',
type: 'bar',
barWidth: '35%',
// ajax传动态数据
data: [200, 300, 300, 900, 1500, 1200, 600],
itemStyle: {
// 修改柱子圆角
barBorderRadius: 5
}
}]
};
// 3.把配置项给实例对象
myChart.setOption(option);
// 4.让图表随屏幕自适应
window.addEventListener('resize', function () {
myChart.resize();
})
})();
// 柱状图模块2
(function () {
// 1.实例化对象
var myChart = echarts.init(document.querySelector(".line2 .chart"));
// 声明颜色数组
var myColor = ["#1089E7", "#F57474", "#56D0E3", "#F8B448", "#8B78F6"];
// 2.指定配置项和数据
var option = {
grid: {
top: "10%",
left: '22%',
bottom: '10%',
// containLabel: true
},
xAxis: {
// 不显示x轴相关信息
show: false
},
yAxis: [{
type: 'category',
// y轴数据反转,与数组的顺序一致
inverse: true,
// 不显示y轴线和刻度
axisLine: {
show: false
},
axisTick: {
show: false
},
// 将刻度标签文字设置为白色
axisLabel: {
color: "#fff"
},
data: ["HTML5", "CSS3", "javascript", "VUE", "NODE"]
}, {
// y轴数据反转,与数组的顺序一致
inverse: true,
show: true,
// 不显示y轴线和刻度
axisLine: {
show: false
},
axisTick: {
show: false
},
// 将刻度标签文字设置为白色
axisLabel: {
color: "#fff"
},
data: [702, 350, 610, 793, 664]
}],
series: [{
// 第一组柱子(条状)
name: '条',
type: 'bar',
// 柱子之间的距离
barCategoryGap: 50,
// 柱子的宽度
barWidth: 10,
// 层级 相当于z-index
yAxisIndex: 0,
// 柱子更改样式
itemStyle: {
barBorderRadius: 20,
// 此时的color可以修改柱子的颜色
color: function (params) {
// params 传进来的是柱子的对象
// dataIndex 是当前柱子的索引号
// console.log(params);
return myColor[params.dataIndex];
}
},
data: [70, 34, 60, 78, 69],
// 显示柱子内的百分比文字
label: {
show: true,
position: "inside",
// {c} 会自动解析为数据(data内的数据)
formatter: "{c}%"
}
},
{
// 第二组柱子(框状 border)
name: '框',
type: 'bar',
// 柱子之间的距离
barCategoryGap: 50,
// 柱子的宽度
barWidth: 14,
// 层级 相当于z-index
yAxisIndex: 1,
// 柱子修改样式
itemStyle: {
color: "none",
borderColor: "#00c1de",
borderWidth: 2,
barBorderRadius: 15,
},
data: [100, 100, 100, 100, 100]
}
]
};
// 3.把配置项给实例对象
myChart.setOption(option);
// 4.让图表随屏幕自适应
window.addEventListener('resize', function () {
myChart.resize();
})
})();
// 折线图模块1
(function () {
// 年份对应数据
var yearData = [{
year: "2020", // 年份
data: [
// 两个数组是因为有两条线
[24, 40, 101, 134, 90, 230, 210, 230, 120, 230, 210, 120],
[40, 64, 191, 324, 290, 330, 310, 213, 180, 200, 180, 79]
]
},
{
year: "2021", // 年份
data: [
// 两个数组是因为有两条线
[123, 175, 112, 197, 121, 67, 98, 21, 43, 64, 76, 38],
[143, 131, 165, 123, 178, 21, 82, 64, 43, 60, 19, 34]
]
}
];
var myChart = echarts.init(document.querySelector(".line .chart"));
var option = {
// 修改两条线的颜色
color: ['#00f2f1', '#ed3f35'],
tooltip: {
trigger: 'axis'
},
// 图例组件
legend: {
// 当serise 有name值时, legend 不需要写data
// 修改图例组件文字颜色
textStyle: {
color: '#4c9bfd'
},
right: '10%',
},
grid: {
top: "20%",
left: '3%',
right: '4%',
bottom: '3%',
containLabel: true,
show: true, // 显示边框
borderColor: '#012f4a' // 边框颜色
},
xAxis: {
type: 'category',
boundaryGap: false, // 去除轴间距
data: ['1月', '2月', '3月', '4月', '5月', '6月', '7月', '8月', '9月', '10月', '11月', '12月'],
// 去除刻度线
axisTick: {
show: false
},
axisLabel: {
color: "#4c9bfb" // x轴文本颜色
},
axisLine: {
show: false // 去除轴线
}
},
yAxis: {
type: 'value',
// 去除刻度线
axisTick: {
show: false
},
axisLabel: {
color: "#4c9bfb" // x轴文本颜色
},
axisLine: {
show: false // 去除轴线
},
splitLine: {
lineStyle: {
color: "#012f4a"
}
}
},
series: [{
type: 'line',
smooth: true, // 圆滑的线
name: '新增粉丝',
data: yearData[0].data[0]
},
{
type: 'line',
smooth: true, // 圆滑的线
name: '新增游客',
data: yearData[0].data[1]
}
]
};
myChart.setOption(option);
// 4.让图表随屏幕自适应
window.addEventListener('resize', function () {
myChart.resize();
})
// 5.点击切换2020 和 2021 的数据
$('.line h2 a').on('click', function () {
// console.log($(this).index());
// 点击a 之后 根据当前a的索引号 找到对应的 yearData 相关对象
// console.log(yearData[$(this).index()]);
var obj = yearData[$(this).index()];
option.series[0].data = obj.data[0];
option.series[1].data = obj.data[1];
// 选中年份高亮
$('.line h2 a').removeClass('a-active');
$(this).addClass('a-active');
// 需要重新渲染
myChart.setOption(option);
})
})();
// 折线图模块2
(function () {
var myChart = echarts.init(document.querySelector('.bar2 .chart'));
var option = {
tooltip: {
trigger: 'axis',
},
legend: {
top: "0%",
textStyle: {
color: "rgba(255,255,255,.5)",
fontSize: "12"
}
},
grid: {
top: '30',
left: '10',
right: '30',
bottom: '10',
containLabel: true
},
xAxis: [{
type: 'category',
boundaryGap: false,
// 文本颜色为rgba(255,255,255,.6) 文字大小为 12
axisLabel: {
textStyle: {
color: "rgba(255,255,255,.6)",
fontSize: 12
}
},
// x轴线的颜色为 rgba(255,255,255,.2)
axisLine: {
lineStyle: {
color: "rgba(255,255,255,.2)"
}
},
data: ["01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "26", "28", "29", "30"]
}],
yAxis: [{
type: 'value',
axisTick: {
// 不显示刻度线
show: false
},
axisLine: {
lineStyle: {
color: "rgba(255,255,255,.1)"
}
},
axisLabel: {
textStyle: {
color: "rgba(255,255,255,.6)",
fontSize: 12
}
},
// 修改分割线的颜色
splitLine: {
lineStyle: {
color: "rgba(255,255,255,.1)"
}
}
}],
series: [{
name: '邮件营销',
type: 'line',
smooth: true, // 圆滑的线
// 单独修改当前线条的样式
lineStyle: {
color: "#0184d5",
width: 2
},
// 填充区域渐变透明颜色
areaStyle: {
color: new echarts.graphic.LinearGradient(
0,
0,
0,
1,
[{
offset: 0,
color: "rgba(1, 132, 213, 0.4)" // 渐变色的起始颜色
},
{
offset: 0.8,
color: "rgba(1, 132, 213, 0.1)" // 渐变线的结束颜色
}
],
false
),
shadowColor: "rgba(0, 0, 0, 0.1)"
},
// 拐点设置为小圆点
symbol: 'circle',
// 设置拐点大小
symbolSize: 5,
// 开始不显示拐点, 鼠标经过显示
showSymbol: false,
// 设置拐点颜色以及边框
itemStyle: {
color: "#0184d5",
borderColor: "rgba(221, 220, 107, .1)",
borderWidth: 12
},
data: [30, 40, 30, 40, 30, 40, 30, 60, 20, 40, 30, 40, 30, 40, 30, 40, 30, 60, 20, 40, 30, 40, 30, 40, 30, 40, 20, 60, 50, 40]
},
{
name: "转发量",
type: "line",
smooth: true,
lineStyle: {
normal: {
color: "#00d887",
width: 2
}
},
areaStyle: {
normal: {
color: new echarts.graphic.LinearGradient(
0,
0,
0,
1,
[{
offset: 0,
color: "rgba(0, 216, 135, 0.4)"
},
{
offset: 0.8,
color: "rgba(0, 216, 135, 0.1)"
}
],
false
),
shadowColor: "rgba(0, 0, 0, 0.1)"
}
},
// 设置拐点 小圆点
symbol: "circle",
// 拐点大小
symbolSize: 5,
// 设置拐点颜色以及边框
itemStyle: {
color: "#00d887",
borderColor: "rgba(221, 220, 107, .1)",
borderWidth: 12
},
// 开始不显示拐点, 鼠标经过显示
showSymbol: false,
data: [130, 10, 20, 40, 30, 40, 80, 60, 20, 40, 90, 40, 20, 140, 30, 40, 130, 20, 20, 40, 80, 70, 30, 40, 30, 120, 20, 99, 50, 20]
}
]
};
myChart.setOption(option);
window.addEventListener('resize', function () {
myChart.resize();
})
})();
// 饼形图1
(function () {
var myChart = echarts.init(document.querySelector(".pie .chart"));
var option = {
color: ["#1089E7", "#F57474", "#56D0E3", "#F8B448", "#8B78F6"],
tooltip: {
trigger: 'item',
formatter: '{a} <br/>{b}: {c} ({d}%)'
},
legend: {
// 垂直居中,默认水平居中
// orient: 'vertical',
bottom: 0,
left: 10,
// 小图标的宽度和高度
itemWidth: 10,
itemHeight: 10,
// 修改图例组件的文字为 12px
textStyle: {
color: "rgba(255,255,255,.5)",
fontSize: "10"
}
},
series: [{
name: '年龄分布',
type: 'pie',
// 设置饼形图在容器中的位置
center: ["50%", "42%"],
// 修改饼形图大小,第一个为内圆半径,第二个为外圆半径
radius: ['40%', '60%'],
avoidLabelOverlap: false,
// 图形上的文字
label: {
show: false,
position: 'center'
},
// 链接文字和图形的线
labelLine: {
show: false
},
data: [{
value: 1,
name: "0岁以上"
},
{
value: 4,
name: "20-29岁"
},
{
value: 2,
name: "30-39岁"
},
{
value: 2,
name: "40-49岁"
},
{
value: 1,
name: "50岁以上"
}
]
}]
};
myChart.setOption(option);
window.addEventListener('resize', function () {
myChart.resize();
})
})();
// 饼形图2
(function () {
var myChart = echarts.init(document.querySelector('.pie2 .chart'));
var option = {
color: ['#60cda0', '#ed8884', '#ff9f7f', '#0096ff', '#9fe6b8', '#32c5e9', '#1d9dff'],
tooltip: {
trigger: 'item',
formatter: '{a} <br/>{b} : {c} ({d}%)'
},
legend: {
bottom: 0,
itemWidth: 10,
itemHeight: 10,
textStyle: {
color: "rgba(255,255,255,.5)",
fontSize: 10
}
},
series: [{
name: '地区分布',
type: 'pie',
radius: ["10%", "60%"],
center: ['50%', '40%'],
// 半径模式 area面积模式
roseType: 'radius',
// 图形的文字标签
label: {
fontsize: 10
},
// 引导线调整
labelLine: {
// 连接扇形图线长(斜线)
length: 6,
// 连接文字线长(横线)
length2: 8
},
data: [{
value: 26,
name: '北京'
},
{
value: 24,
name: '山东'
},
{
value: 25,
name: '河北'
},
{
value: 20,
name: '江苏'
},
{
value: 25,
name: '浙江'
},
{
value: 30,
name: '四川'
},
{
value: 42,
name: '湖北'
}
]
}]
};
myChart.setOption(option);
window.addEventListener('resize', function () {
myChart.resize();
})
})();
// 模拟飞行路线地图
(function () {
var myChart = echarts.init(document.querySelector(".map .chart"));
var geoCoordMap = {
'上海': [121.4648, 31.2891],
'东莞': [113.8953, 22.901],
'东营': [118.7073, 37.5513],
'中山': [113.4229, 22.478],
'临汾': [111.4783, 36.1615],
'临沂': [118.3118, 35.2936],
'丹东': [124.541, 40.4242],
'丽水': [119.5642, 28.1854],
'乌鲁木齐': [87.9236, 43.5883],
'佛山': [112.8955, 23.1097],
'保定': [115.0488, 39.0948],
'兰州': [103.5901, 36.3043],
'包头': [110.3467, 41.4899],
'北京': [116.4551, 40.2539],
'北海': [109.314, 21.6211],
'南京': [118.8062, 31.9208],
'南宁': [108.479, 23.1152],
'南昌': [116.0046, 28.6633],
'南通': [121.1023, 32.1625],
'厦门': [118.1689, 24.6478],
'台州': [121.1353, 28.6688],
'合肥': [117.29, 32.0581],
'呼和浩特': [111.4124, 40.4901],
'咸阳': [108.4131, 34.8706],
'哈尔滨': [127.9688, 45.368],
'唐山': [118.4766, 39.6826],
'嘉兴': [120.9155, 30.6354],
'大同': [113.7854, 39.8035],
'大连': [122.2229, 39.4409],
'天津': [117.4219, 39.4189],
'太原': [112.3352, 37.9413],
'威海': [121.9482, 37.1393],
'宁波': [121.5967, 29.6466],
'宝鸡': [107.1826, 34.3433],
'宿迁': [118.5535, 33.7775],
'常州': [119.4543, 31.5582],
'广州': [113.5107, 23.2196],
'廊坊': [116.521, 39.0509],
'延安': [109.1052, 36.4252],
'张家口': [115.1477, 40.8527],
'徐州': [117.5208, 34.3268],
'德州': [116.6858, 37.2107],
'惠州': [114.6204, 23.1647],
'成都': [103.9526, 30.7617],
'扬州': [119.4653, 32.8162],
'承德': [117.5757, 41.4075],
'拉萨': [91.1865, 30.1465],
'无锡': [120.3442, 31.5527],
'日照': [119.2786, 35.5023],
'昆明': [102.9199, 25.4663],
'杭州': [119.5313, 29.8773],
'枣庄': [117.323, 34.8926],
'柳州': [109.3799, 24.9774],
'株洲': [113.5327, 27.0319],
'武汉': [114.3896, 30.6628],
'汕头': [117.1692, 23.3405],
'江门': [112.6318, 22.1484],
'沈阳': [123.1238, 42.1216],
'沧州': [116.8286, 38.2104],
'河源': [114.917, 23.9722],
'泉州': [118.3228, 25.1147],
'泰安': [117.0264, 36.0516],
'泰州': [120.0586, 32.5525],
'济南': [117.1582, 36.8701],
'济宁': [116.8286, 35.3375],
'海口': [110.3893, 19.8516],
'淄博': [118.0371, 36.6064],
'淮安': [118.927, 33.4039],
'深圳': [114.5435, 22.5439],
'清远': [112.9175, 24.3292],
'温州': [120.498, 27.8119],
'渭南': [109.7864, 35.0299],
'湖州': [119.8608, 30.7782],
'湘潭': [112.5439, 27.7075],
'滨州': [117.8174, 37.4963],
'潍坊': [119.0918, 36.524],
'烟台': [120.7397, 37.5128],
'玉溪': [101.9312, 23.8898],
'珠海': [113.7305, 22.1155],
'盐城': [120.2234, 33.5577],
'盘锦': [121.9482, 41.0449],
'石家庄': [114.4995, 38.1006],
'福州': [119.4543, 25.9222],
'秦皇岛': [119.2126, 40.0232],
'绍兴': [120.564, 29.7565],
'聊城': [115.9167, 36.4032],
'肇庆': [112.1265, 23.5822],
'舟山': [122.2559, 30.2234],
'苏州': [120.6519, 31.3989],
'莱芜': [117.6526, 36.2714],
'菏泽': [115.6201, 35.2057],
'营口': [122.4316, 40.4297],
'葫芦岛': [120.1575, 40.578],
'衡水': [115.8838, 37.7161],
'衢州': [118.6853, 28.8666],
'西宁': [101.4038, 36.8207],
'西安': [109.1162, 34.2004],
'贵阳': [106.6992, 26.7682],
'连云港': [119.1248, 34.552],
'邢台': [114.8071, 37.2821],
'邯郸': [114.4775, 36.535],
'郑州': [113.4668, 34.6234],
'鄂尔多斯': [108.9734, 39.2487],
'重庆': [107.7539, 30.1904],
'金华': [120.0037, 29.1028],
'铜川': [109.0393, 35.1947],
'银川': [106.3586, 38.1775],
'镇江': [119.4763, 31.9702],
'长春': [125.8154, 44.2584],
'长沙': [113.0823, 28.2568],
'长治': [112.8625, 36.4746],
'阳泉': [113.4778, 38.0951],
'青岛': [120.4651, 36.3373],
'韶关': [113.7964, 24.7028]
};
var XAData = [
[{
name: '西安'
}, {
name: '北京',
value: 100
}],
[{
name: '西安'
}, {
name: '上海',
value: 100
}],
[{
name: '西安'
}, {
name: '广州',
value: 100
}],
[{
name: '西安'
}, {
name: '西宁',
value: 100
}],
[{
name: '西安'
}, {
name: '银川',
value: 100
}]
];
var XNData = [
[{
name: '西宁'
}, {
name: '北京',
value: 100
}],
[{
name: '西宁'
}, {
name: '上海',
value: 100
}],
[{
name: '西宁'
}, {
name: '广州',
value: 100
}],
[{
name: '西宁'
}, {
name: '西安',
value: 100
}],
[{
name: '西宁'
}, {
name: '武汉',
value: 100
}],
[{
name: '武汉'
}, {
name: '西宁',
value: 100
}],
[{
name: '武汉'
}, {
name: '哈尔滨',
value: 100
}],
[{
name: '武汉'
}, {
name: '乌鲁木齐',
value: 100
}],
[{
name: '西宁'
}, {
name: '银川',
value: 100
}]
];
var YCData = [
[{
name: '银川'
}, {
name: '北京',
value: 100
}],
[{
name: '银川'
}, {
name: '广州',
value: 100
}],
[{
name: '银川'
}, {
name: '上海',
value: 100
}],
[{
name: '银川'
}, {
name: '西安',
value: 100
}],
[{
name: '银川'
}, {
name: '西宁',
value: 100
}],
];
var planePath = 'path://M1705.06,1318.313v-89.254l-319.9-221.799l0.073-208.063c0.521-84.662-26.629-121.796-63.961-121.491c-37.332-0.305-64.482,36.829-63.961,121.491l0.073,208.063l-319.9,221.799v89.254l330.343-157.288l12.238,241.308l-134.449,92.931l0.531,42.034l175.125-42.917l175.125,42.917l0.531-42.034l-134.449-92.931l12.238-241.308L1705.06,1318.313z';
//var planePath = 'arrow';
var convertData = function (data) {
var res = [];
for (var i = 0; i < data.length; i++) {
var dataItem = data[i];
var fromCoord = geoCoordMap[dataItem[0].name];
var toCoord = geoCoordMap[dataItem[1].name];
if (fromCoord && toCoord) {
res.push({
fromName: dataItem[0].name,
toName: dataItem[1].name,
coords: [fromCoord, toCoord],
value: dataItem[1].value
});
}
}
return res;
};
var color = ['#a6c84c', '#ffa022', '#46bee9']; //航线的颜色
var series = [];
[
['西安', XAData],
['西宁', XNData],
['银川', YCData]
].forEach(function (item, i) {
series.push({
name: item[0] + ' Top3',
type: 'lines',
zlevel: 1,
effect: {
show: true,
period: 6,
trailLength: 0.7,
color: 'red', //arrow箭头的颜色
symbolSize: 3
},
lineStyle: {
normal: {
color: color[i],
width: 0,
curveness: 0.2
}
},
data: convertData(item[1])
}, {
name: item[0] + ' Top3',
type: 'lines',
zlevel: 2,
symbol: ['none', 'arrow'],
symbolSize: 10,
effect: {
show: true,
period: 6,
trailLength: 0,
symbol: planePath,
symbolSize: 15
},
lineStyle: {
normal: {
color: color[i],
width: 1,
opacity: 0.6,
curveness: 0.2
}
},
data: convertData(item[1])
}, {
name: item[0] + ' Top3',
type: 'effectScatter',
coordinateSystem: 'geo',
zlevel: 2,
rippleEffect: {
brushType: 'stroke'
},
label: {
normal: {
show: true,
position: 'right',
formatter: '{b}'
}
},
symbolSize: function (val) {
return val[2] / 8;
},
itemStyle: {
normal: {
color: color[i],
},
emphasis: {
areaColor: '#2B91B7'
}
},
data: item[1].map(function (dataItem) {
return {
name: dataItem[1].name,
value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value])
};
})
});
});
var option = {
tooltip: {
trigger: 'item',
formatter: function (params, ticket, callback) {
if (params.seriesType == "effectScatter") {
return "线路:" + params.data.name + "" + params.data.value[2];
} else if (params.seriesType == "lines") {
return params.data.fromName + ">" + params.data.toName + "<br />" + params.data.value;
} else {
return params.name;
}
}
},
legend: {
orient: 'vertical',
top: 'bottom',
left: 'right',
data: ['西安 Top3', '西宁 Top3', '银川 Top3'],
textStyle: {
color: '#fff'
},
selectedMode: 'multiple'
},
geo: {
map: 'china',
// 把地图放大1.2倍
zoom: 1.2,
label: {
// 鼠标移动显示区域名称
emphasis: {
show: true,
color: '#fff'
}
},
roam: true,
// 地图样式修改
itemStyle: {
normal: {
areaColor: 'rgba(34, 70, 168, 0.7)',
borderColor: '#0692a4'
},
emphasis: {
areaColor: 'rgba(119, 139, 224, 0.548)'
}
}
},
series: series
};
myChart.setOption(option);
window.addEventListener('resize', function () {
myChart.resize();
})
})();
其中,window.addEventListener这个函数是为了让图表随着浏览器的屏幕自适应的,随着浏览器的屏幕缩小而缩小,不会乱跑。
(3)浏览器显示的页面效果:
5、整个index.html文件的完整代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>数据可视化</title>
<link rel="stylesheet" href="css/index.css" />
</head>
<body>
<!-- 头部 -->
<header>
<h1>数据可视化-ECharts</h1>
<div class="show-time"></div>
<script>
// 格式:当前时间:2022年5月3日-13时20分24秒
var t = null;
t = setTimeout(time, 1000); //开始运行
function time() {
clearTimeout(t); //清除定时器
dt = new Date();
var y = dt.getFullYear();
var mt = dt.getMonth() + 1;
var day = dt.getDate();
var h = dt.getHours(); //获取时
var m = dt.getMinutes(); //获取分
var s = dt.getSeconds(); //获取秒
document.querySelector(".show-time").innerHTML = "当前时间:" + y + "年" + mt + "月" + day + "日-" + h + "时" + m + "分" + s + "秒";
t = setTimeout(time, 1000); //设定定时器,循环运行
}
</script>
</header>
<!-- 页面主体部分 -->
<section class="mainbox">
<!-- 左侧盒子 -->
<div class="column">
<div class="panel bar">
<h2>柱形图-就业行业</h2>
<!-- 图表放置盒子 -->
<div class="chart"></div>
<!-- 伪元素绘制盒子下边角 -->
<div class="panel-footer"></div>
</div>
<div class="panel line">
<h2>折线图-人员变化
<a class="a-active" href="javascript:;">2020</a>
<a href="javascript:;">2021</a>
</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
<div class="panel pie">
<h2>饼形图-年龄分布</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
</div>
<!-- 中间盒子 -->
<div class="column">
<!-- 头部 no模块 -->
<div class="no">
<div class="no-hd">
<ul>
<li>12434</li>
<li>10983</li>
</ul>
</div>
<div class="no-bd">
<ul>
<li>前端需求人数</li>
<li>市场供应人数</li>
</ul>
</div>
</div>
<!-- map模块 -->
<div class="map">
<div class="map1"></div>
<div class="map2"></div>
<div class="map3"></div>
<div class="chart"></div>
</div>
</div>
<!-- 右侧盒子 -->
<div class="column">
<div class="panel bar2">
<h2>折线图-播放量</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
<div class="panel line2">
<h2>柱形图-就业行业</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
<div class="panel pie2">
<h2>饼形图-地区分布</h2>
<div class="chart"></div>
<div class="panel-footer"></div>
</div>
</div>
</section>
<script src="js/flexible.js"></script>
<script src="js/echarts.min.js"></script>
<script src="js/jquery.js"></script>
<!-- 引入china.js 完成地图模块 -->
<script src="js/china.js"></script>
<script src="js/index.js"></script>
</body>
</html>
浏览器的显示效果: