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Posted to dev@echarts.apache.org by GitBox <gi...@apache.org> on 2019/07/25 02:00:10 UTC
[GitHub] [incubator-echarts] ryancui- commented on issue #7075: 如何设置关系图不要一直疯狂运动?[type='graph']
ryancui- commented on issue #7075: 如何设置关系图不要一直疯狂运动?[type='graph']
URL: https://github.com/apache/incubator-echarts/issues/7075#issuecomment-514864311
我这边产品的需求是「不能转」，可以接受转的时候给一个 loading 的遮罩之类的。看了下源码，可以 Hack 一下：
在 `src/chart/graph/GraphView.js` 里可以看到 force layout 布局时的代码
```javascript
_startForceLayoutIteration: function (forceLayout, layoutAnimation) {
var self = this;
(function step() {
forceLayout.step(function (stopped) {
self.updateLayout(self._model);
(self._layouting = !stopped) && (
layoutAnimation
? (self._layoutTimeout = setTimeout(step, 16))
: step()
);
});
})();
}
```
可以看出，这个 `self._layouting` 其实就是当前疯狂旋转结束的标记，那么只要监听这个变量，为 false 时才结束 loading 就 ok 了。然后去 echarts 的实例上找这个 graph view
就是这个 `myChart._chartsView[0]._layouting`，最后就是一堆 setTimeout 的事。
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