asdfhalkehflkajdhf commented on issue #9422: graph 加载数据，产生off未定义错误 URL: https://github.com/apache/incubator-echarts/issues/9422#issuecomment-439610355 > 你能提供正常和错误图表之间的差异选项吗？ >Can you provide the difference option between the normal and error chart? 谢谢，我已经找到问题，是在计算坐标时，y的值为NaN。从一开始我就找错了方向，因为坐标是随机计算的。并没有想到会是y值坐标出错。他们提示off没有定义。就直接进到错误代码行查找，最终没有结果。现在已经好了。 Thank you. I have found the problem. When calculating coordinates, the value of Y is NaN. [a.zip](https://github.com/apache/incubator-echarts/files/2591715/a.zip) From the beginning, I found the wrong direction because the coordinates were random. I didn't expect it to be an error in the y value coordinate. They suggested that off was not defined. It goes straight to the wrong code line and finds no result. It's all right now. 但是，双击事件仍然无响应，代码见附件 [a.zip](https://github.com/apache/incubator-echarts/files/2591719/a.zip) 。 However, the double click event is still unresponsive, and the code is attached. 事件代码写法如下： The event code is written as follows: ``` g_myChart.on('dblclick', function (params) { console.log('dblclick'); }); ```
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