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Posted to commits@echarts.apache.org by GitBox <gi...@apache.org> on 2020/08/19 19:15:05 UTC
[GitHub] [incubator-echarts] aadgithub opened a new issue #13157: How to get children nodes data on click of bottom lables
aadgithub opened a new issue #13157:
URL: https://github.com/apache/incubator-echarts/issues/13157
### Version
4.4.2
### Reproduction link
[https://jsfiddle.net/yxtn0gwd/1/](https://jsfiddle.net/yxtn0gwd/1/)
### Steps to reproduce
On tree map at bottom it shows hierarchy of levels.
on click of parent level want all children level nodes data.
in attached demo
click on Disk Usage => Gold
### What is expected?
in demo on click of 'Gold' from top left corner in map it gives all children data in click event.
on click Disk Usage =>Gold from bottom hierarchy it should give all children data of Gold.
### What is actually happening?
It is not returning children data of Gold in click event.
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[GitHub] [incubator-echarts] echarts-bot[bot] commented on issue #13157: How to get children nodes data on click of bottom lables
Posted by GitBox <gi...@apache.org>.
echarts-bot[bot] commented on issue #13157:
URL: https://github.com/apache/incubator-echarts/issues/13157#issuecomment-676610578
Hi! We've received your issue and please be patient to get responded. 🎉
The average response time is expected to be within one day for weekdays.
In the meanwhile, please make sure that **you have posted enough image to demo your request**. You may also check out the [API](http://echarts.apache.org/api.html) and [chart option](http://echarts.apache.org/option.html) to get the answer.
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[GitHub] [incubator-echarts] plainheart commented on issue #13157: How to get children nodes data on click of bottom lables
Posted by GitBox <gi...@apache.org>.
plainheart commented on issue #13157:
URL: https://github.com/apache/incubator-echarts/issues/13157#issuecomment-676836144
It seems that there is no direct and simple way to get the children nodes of clicked level node in the breadcrumb.
There is a workaround for your reference.
```js
myChart.on('click', function(e) {
var series = myChart.getModel().getSeriesByName('Disk Usage')[0]; // or use getSeriesByIndex(index)
var allNodes = [];
flattenNodes(series.getViewRoot(), allNodes);
var clickedNode = allNodes.find(function(t) {
return t.dataIndex === e.nodeData.dataIndex;
});
var children = clickedNode.children;
console.log('clicked', e.nodeData.dataIndex, e.nodeData.name, 'children nodes', children);
})
function flattenNodes(root, nodes) {
nodes.push(root);
if (root.children) {
root.children.forEach(function(c) {
flattenNodes(c, nodes);
});
}
}
```
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[GitHub] [incubator-echarts] plainheart edited a comment on issue #13157: How to get children nodes data on click of bottom lables
Posted by GitBox <gi...@apache.org>.
plainheart edited a comment on issue #13157:
URL: https://github.com/apache/incubator-echarts/issues/13157#issuecomment-676836144
It seems that there is no direct and simple way to get the children nodes of clicked level node in the breadcrumb.
There is a workaround for your reference.
```js
myChart.on('click', function(e) {
if (e.selfType !== 'breadcrumb') {
return;
}
var series = myChart.getModel().getSeriesByName('Disk Usage')[0]; // or use getSeriesByIndex(index)
var allNodes = [];
flattenNodes(series.getViewRoot(), allNodes);
var clickedNode = allNodes.find(function(t) {
return t.dataIndex === e.nodeData.dataIndex;
});
var children = clickedNode.children;
console.log('clicked', e.nodeData.dataIndex, e.nodeData.name, 'children nodes', children);
})
function flattenNodes(root, nodes) {
nodes.push(root);
if (root.children) {
root.children.forEach(function(c) {
flattenNodes(c, nodes);
});
}
}
```
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[GitHub] [incubator-echarts] plainheart closed issue #13157: How to get children nodes data on click of bottom lables
Posted by GitBox <gi...@apache.org>.
plainheart closed issue #13157:
URL: https://github.com/apache/incubator-echarts/issues/13157
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[GitHub] [incubator-echarts] aadgithub commented on issue #13157: How to get children nodes data on click of bottom lables
Posted by GitBox <gi...@apache.org>.
aadgithub commented on issue #13157:
URL: https://github.com/apache/incubator-echarts/issues/13157#issuecomment-680009866
Thank you @plainheart
Working as expected.
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