phatlewt commented on issue #14539:
URL: https://github.com/apache/echarts/issues/14539#issuecomment-1114061187
Technically i think it's the correct functionality- the center of a sunburst
chart is always considered the "root" so it should always show the root or the
top level of the data hierarchy.
I was also facing the same problem so I clicked around the browser inspector
of the echarts object and I think I found a solution, which is to get the chart
model's series viewRoot:
let viewRoot = myChart._model.getSeries()[0]._viewRoot;
console.log(viewRoot);
of interest are these properties: name (name of current node), depth (depth
of tree; 0=root, 1=1st level, etc.), children[] (array of data objects under
current level).
so within the click handler you can do:
```
myChart.on('click', 'series', (e)=>
{
console.log(e.data);
let viewRoot = myChart._model.getSeries()[0]._viewRoot;
switch(viewRoot.depth)
{
case 0: /*do something for root*/ break;
case 1: /*do something for 1st level*/ break;
..etc..
}
});
```
if you need to get the chart object at some other point in the code:
` echarts.getInstanceByDom(document.getElementById("your chart element
id"))._model.getSeries()[0]._viewRoot`
I've only just discovered this charting library last week so am quite new
and still exploring it too.
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