MilanRajkumar opened a new issue #10534: visualMap: type: piecewise URL: https://github.com/apache/incubator-echarts/issues/10534 Hi, I was trying to achieve the brushselected event with visualmap **piecewise** type that is select multiple grid and send the multiple grid selected values for async action. But when the event is triggered, the dataIndex in the batch object is always empty array eg from console: batch[0].selected[] { dataIndex: [], seriesId: 'abc', seriesIndex: 0 .... How do I achieve multiple grid selection in piecewise visualmap? Can I also highlight the selected grid ie change the color of selected grid? <img width="135" alt="Capture" src="https://user-images.githubusercontent.com/17317442/58252466-cde47500-7d83-11e9-899e-ed0639abd3df.PNG";> .... }
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