一个echarts柱状图hover改变颜色的例子 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
<script src="https://cdn.bootcss.com/echarts/4.1.0.rc2/echarts-en.common.js"></script>
</head>
<body>
    <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
    <div id="main" style="width: 600px;height:400px;"></div>
    <script type="text/javascript">
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));

        // 指定图表的配置项和数据
        var option = {
            title: {
                text: 'ECharts 入门示例'
            },
            tooltip: {},
            xAxis: {
                data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"],
                axisLabel:{
                    color: 'blue'
                },
            },
            yAxis: {},
            series: [{
                name: '销量',
                type: 'bar',
                data: [5, 20, 36, 10, 10, 20],
                itemStyle:{
                    color: 'blue'
                },
            }],
        };
        
        myChart.on('mouseover',function(event){
            console.log(event);
            option.xAxis.axisLabel.color=function(value,index){
                return index === event.dataIndex?'red':'blue';
            };
            option.series[0].itemStyle.color=function(params){
                return params.name === event.name?'red':'blue';
            }
            myChart.setOption(option);
        })
        myChart.on('mouseout',function(event){
            console.log(event);
            option.xAxis.axisLabel.color='blue';
            option.series[0].itemStyle.color='blue';
            myChart.setOption(option);
        })


        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(option);
    </script>
</html>

 

posted @ 2018-09-20 09:54  xianxiaobo  阅读(3097)  评论(0)  编辑  收藏  举报