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Posted to commits@echarts.apache.org by GitBox <gi...@apache.org> on 2019/12/06 03:31:46 UTC
[GitHub] [incubator-echarts] duanmw opened a new issue #11800: 雷达图使用“ dispatch showTip”时报错，无法showTip
duanmw opened a new issue #11800: 雷达图使用“ dispatch showTip”时报错，无法showTip
URL: https://github.com/apache/incubator-echarts/issues/11800
### Version
4.4.0-rc.1
### Steps to reproduce
使用官方雷达图示例https://www.echartsjs.com/examples/zh/editor.html?c=radar
添加定时器让其自动showTip（自动轮播显示提示框），运行到showTip就会报错，主要代码如下：
```
<body>
<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'));
var option = {
title: {
text: '基础雷达图'
},
tooltip: {},
legend: {
data: ['预算分配（Allocated Budget）', '实际开销（Actual Spending）']
},
radar: {
// shape: 'circle',
name: {
textStyle: {
color: '#fff',
backgroundColor: '#999',
borderRadius: 3,
padding: [3, 5]
}
},
indicator: [
{ name: '销售（sales）', max: 6500 },
{ name: '管理（Administration）', max: 16000 },
{ name: '信息技术（Information Techology）', max: 30000 },
{ name: '客服（Customer Support）', max: 38000 },
{ name: '研发（Development）', max: 52000 },
{ name: '市场（Marketing）', max: 25000 }
]
},
series: [{
name: '预算 vs 开销（Budget vs spending）',
type: 'radar',
// areaStyle: {normal: {}},
data: [{
value: [4300, 10000, 28000, 35000, 50000, 19000],
name: '预算分配（Allocated Budget）'
},
{
value: [5000, 14000, 28000, 31000, 42000, 21000],
name: '实际开销（Actual Spending）'
}
]
}]
};
// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
var theIndex = 1;
timer && clearInterval(timer);
var timer = setInterval(function() {
if (theIndex < 0) {
theIndex = 1;
}
myChart.dispatchAction({
type: 'showTip',
seriesIndex: 0,
dataIndex: theIndex
});
theIndex--;
}, 2000);
</script>
</body>
```
### What is expected?
雷达图按定时器设置而自动showTip（显示提示框）
### What is actually happening?
雷达图没有自动显示提示框，且浏览器控制台报错：
Uncaught TypeError: Cannot read property 'dataToCoord' of undefined
at Radar.dataToPoint (Radar.js:64)
at findPointFromSeries (findPointFromSeries.js:32)
at ExtendedClass.manuallyShowTip (TooltipView.js:188)
at callView (echarts.js:875)
at ECharts.<anonymous> (echarts.js:869)
at Array.forEach (<anonymous>)
at each$1 (util.js:284)
at ExtendedClass.eachComponent (Global.js:447)
at updateDirectly (echarts.js:868)
at ECharts.<anonymous> (echarts.js:1052)
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