ECharts3.1.7Treemap鼠标点击事件问题

[wqk271561787]

问题简述 (One-line summary)

创建Treemap，绑定任意鼠标点击事件click、dblclick，鼠标点击节点，通过function中的参数params取得params.data，取到的data并不是所点击节点的data，而是下一个index的data，例：点击index0的节点，取到的是index1的节点的data

版本及环境 (Version & Environment)

• ECharts 版本 (ECharts version):3.1.7
• 浏览器类型和版本 (Browser version):Firefox45.0.2
• 操作系统类型和版本 (OS Version):win7 64

重现步骤 (Steps to reproduce)

期望结果 (Expected behaviour)

可能哪里有问题 (What went wrong)

ECharts配置项 (ECharts option)

option = {
toolbox: {
            itemSize : 40,
            show : true,
             feature : {
                saveAsImage : {
                }
            } 
        },
        series: [{
             name:'treemap',
             type:'treemap',
             label: {
                 show: true,
                 formatter: '{b}' 
             },
             itemStyle: {
                 normal: {
                     borderColor: '#fff',
                     gapWidth: 1
                 }
             },
             nodeClick:'zoomToNode',
             data: [
                    {value:20,name:'树1'},
                    {value:19,name:'树2'},
                    {value:18,name:'树3'},
                    {value:17,name:'树4'},
                    {value:16,name:'树5'},
                    {value:15,name:'树6'},
                    {value:14,name:'树7'},
                    {value:13,name:'树8'},
                    {value:12,name:'树9'},
                    {value:11,name:'树10'},
                    {value:10,name:'树11'},
                    {value:9,name:'树12'},
                    {value:8,name:'树13'},
                    {value:7,name:'树14'},
                    {value:6,name:'树15'},
                    {value:5,name:'树16'},
                    {value:4,name:'树17'},
                    {value:3,name:'树18'},
                    {value:2,name:'树19'},
                    {value:2,name:'树20'}
                ]
         }]
}

其他信息 (Other comments)