用Echarts图表开发，原本的Echarts图例不一定能满足我们的视觉要求。
下面是Echarts 折线图自定义图例，图例checked选中，相应的折线线条会随之checked，其余未选中的图例对应的折线opacity会降低，（柱状图，饼图等等也类似于此），这是一个小例子（如果满足不了您的视觉要求，您可以自己定义css样式，达到自己想要的视觉效果）：
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Echarts 自定义折线图例</title>
<script type="text/javascript" src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript" src="https://cdn.bootcss.com/echarts/3.7.1/echarts.min.js"></script>
<style>
ul,li{ list-style:none;}
.charts-left-list {
list-style: none;
overflow: hidden;
float: left;
width: 100%;
padding: 0;
}
.charts-left-list li {
float: left;
width: 100%;
color: #4A4A4A;
font-size: 13px;
line-height: 30px;
border-bottom: 1px solid #EEEEEE;
}
.pull-left {
float: left !important;
}
span.pull-right {
padding: 0 6px;
float: right !important;
}
li.state-selected {
background-color: rgba(240, 225, 28, 0.3);
} span.item-color{
float:left;
width:10px;
height:10px;
border-radius:50%;
margin-top: 9px;
margin-right: 6px;
}
.tooltip-all{
max-width:180px;
padding:10px 16px;
}
.custom-tooltip{
float: left;
width:100%;
}
.tooltip-date{
float: left;
width:100%;
padding-bottom: 10px;
border-bottom: 1px solid #EEEEEE;
}
.tooltip-detail{
float: left;
padding:10px 0;
}
.item-name{
float:left;
}
.item-num{
float:right;
} </style>
</head> <body> <div class="charts-left-list" style="width:30%; float:left">
<ul>
<li>
<span class="pull-left">
<span class="num">1</span>
<span class="list-color"></span>
<span class="list-name">安凱客車</span>
</span>
<span class="pull-right">8.50</span>
</li>
<li>
<span class="pull-left">
<span class="num">2</span>
<span class="list-color"></span>
<span class="list-name">奧馳</span>
</span>
<span class="pull-right">8.20</span>
</li>
<li>
<span class="pull-left">
<span class="num">3</span>
<span class="list-color"></span>
<span class="list-name">奧迪</span>
</span>
<span class="pull-right">8.02</span>
</li>
<li>
<span class="pull-left">
<span class="num">4</span>
<span class="list-color"></span>
<span class="list-name">阿斯頓馬丁</span>
</span>
<span class="pull-right">7.87</span>
</li>
<li>
<span class="pull-left">
<span class="num">5</span>
<span class="list-color"></span>
<span class="list-name">寶駿</span>
</span>
<span class="pull-right">7.50</span>
</li>
<li>
<span class="pull-left">
<span class="num">6</span>
<span class="list-color"></span>
<span class="list-name">寶馬</span>
</span>
<span class="pull-right">6.12</span>
</li>
<li>
<span class="pull-left">
<span class="num">7</span>
<span class="list-color"></span>
<span class="list-name">保時捷</span>
</span>
<span class="pull-right">5.78</span>
</li>
<li>
<span class="pull-left">
<span class="num">8</span>
<span class="list-color"></span>
<span class="list-name">寶沃</span>
</span>
<span class="pull-right">5.11</span>
</li>
<li>
<span class="pull-left">
<span class="num">9</span>
<span class="list-color"></span>
<span class="list-name">北奔</span>
</span>
<span class="pull-right">4.67</span>
</li>
<li>
<span class="pull-left">
<span class="num">10</span>
<span class="list-color"></span>
<span class="list-name">奔馳</span>
</span>
<span class="pull-right">4.18</span>
</li>
</ul>
</div> <div id="chartmain" style="width:70%; height: 400px; float:right;"></div> <script>
//ECharts
var colors = ['#F8E71C', '#7ED321', '#009688', '#FF9800', '#E91E63', '#50E3C2', '#CDDC39', '#03A9F4', '#9C27B0', '#2813FA'];
option = {
color: colors,
title : {
subtext: '营销指数'
},
animation: false,
tooltip : {
trigger: 'axis',
formatter: function(params) {
//console.log(params);
var result = '';
result += '<div class="tooltip-all"><span class="tooltip-date">'+params[0].name+'</span><div class="tooltip-detail">';
params.forEach(function (item) {
result += '<div class="custom-tooltip"><span class="item-color" style="background-color:' + item.color + '"></span><span class="item-name">'+item.seriesName+'</span><span class="item-num">'+item.value+'</span></div>';
});
result += '</div></div>';
return result;
}
},
legend : {
show: false,
data: [
'安凱客車','奧馳', '奧迪','阿斯頓馬丁', '寶駿','寶馬', '保時捷','寶沃', '北奔','奔馳'
]
},
grid : {
top : 40,
bottom: 70,
right: 80,
left: 34,
},
dataZoom : {
show : true,
realtime : true,
showDetail: true,
y: 380,
height: 20,
backgroundColor: 'rgba(255,255,255,0.5)',
dataBackgroundColor: '#EEEEEE',
fillerColor: 'rgba(252,249,215,0.5)',
handleColor: 'rgba(240,225,28,0.8)',
handleSize: '22',
start : 25,
end : 70
},
calculable : true,
xAxis : [
{
type : 'category',
boundaryGap : false,
data : ['2016/9/08','2016/10/08','2016/11/08','2016/12/08','2017/01/08','2017/02/08','2017/03/08','2017/04/08','2017/05/08','2017/06/08','2017/07/08','2017/08/08','2017/09/08','2017/10/08','2017/11/08','2017/12/08'],
axisLine:{
lineStyle:{
color: '#EEEEEE',
width: 1,
}
},
axisLabel : {
textStyle: {
color: '#C8C6C6',
fontSize: 10
}
}
}
],
yAxis : [
{
type : 'value',
axisLabel : {
formatter: '{value}',
textStyle: {
color: '#C8C6C6',
fontSize: 13
}
},
axisLine:{
lineStyle:{
color: '#EEEEEE',
width: 1,
}
},
splitLine: {
lineStyle: {
color: ['#EEEEEE']
}
} }
],
series : [
{
name:'安凱客車',
smooth: true,
type:'line',
symbol:'none',
data:[6.3, 7.5, 7.9, 8.2, 8.4, 8.8, 9,6.3,7.5, 7.9, 8.5, 8, 7.6, 7, 6,9],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'奧馳',
smooth: true,
type:'line',
symbol:'none',
data:[5.5, 6.5, 6.2, 7, 7.5, 8, 8.3,6,7, 5.5, 8.2, 6, 7, 6, 4,6],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'奧迪',
smooth: true,
type:'line',
symbol:'none',
data:[5.7, 6.2, 5, 4.3, 3, 5.2, 4,7,6.1, 5.3, 4, 6.2, 4.5, 6.8, 5.4,8.6],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'阿斯頓馬丁',
smooth: true,
type:'line',
symbol:'none',
data:[4.8, 6, 5.6, 5.2, 4.8, 5.4, 3.9,5.7,3.6, 2.8, 4.2, 3.6, 2.9, 4.3, 3.4,5.8],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'寶駿',
smooth: true,
type:'line',
symbol:'none',
data:[4.2, 5.4, 5.2, 4.6, 4, 5, 3.5,5.2,3.1, 4, 6, 3.1, 4, 2.5, 3,5],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'寶馬',
smooth: true,
type:'line',
symbol:'none',
data:[3.8, 4.6, 4.9, 4, 5, 3, 4.5,3,3.8, 4.6, 2.5, 2.4, 3.6, 3.1, 2.6,4.5],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'保時捷',
smooth: true,
type:'line',
symbol:'none',
data:[3.2, 4.1, 4.6, 5, 3.6, 2.4, 3.4,2,3, 5.6, 2, 3, 4, 2.1, 2.3,3.5],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'寶沃',
smooth: true,
type:'line',
symbol:'none',
data:[2.6, 3.4, 4, 4.2, 3.2, 2, 3,2.5,5, 4.2, 1.8, 3.6, 3.4, 1.8, 1.9,2.9],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'北奔',
smooth: true,
type:'line',
symbol:'none',
data:[2.1, 3, 3.5, 3.8, 2.8, 1.5, 2.4,2.9,4.1, 3.1, 1.2, 4, 3, 1.2, 1.6,2.4],
lineStyle:{
normal:{
opacity: 1
}
}
},
{
name:'奔馳',
smooth: true,
type:'line',
symbol:'none',
data:[1.5, 2.5, 3, 3.2, 2, 1, 3.6,2.1,4.5, 2.5, 0.8, 3.4, 2.5, 0.6, 1.8,2.1],
lineStyle:{
normal:{
opacity: 1
}
}
}
]
}; //初始化echarts实例
var myChart = echarts.init(document.getElementById('chartmain')); $('.charts-left-list li').bind('click',function(){
var index = $(this).index();
if($(this).hasClass('state-selected')){
$(this).removeClass('state-selected');
}else{
$(this).addClass('state-selected').attr('value',index);
} for(var i=0; i<option.series.length; i++){
option.series[i].lineStyle.normal.opacity = 0.1;
} if ($('.state-selected').length==0){
$('.charts-left-list li').each(function(){
var all_val = $(this).index();
option.series[all_val].lineStyle.normal.opacity = 1;
});
}else{
$('.charts-left-list li.state-selected').each(function(){
var the_val = $(this).attr('value');
option.series[the_val].lineStyle.normal.opacity = 1;
});
} myChart.setOption(option); }); //使用制定的配置项和数据显示图表
myChart.setOption(option); window.onresize = function () {
myChart.resize();
}; </script>
</body>
</html>