liuwo23 opened a new issue, #19184:
URL: https://github.com/apache/echarts/issues/19184
### What problem does this feature solve?
In development, there is often a need to obtain Region information based on
screen coordinates. However, the echartsInstance API does not directly expose
the getRegionByCoord function. It is necessary to access this function by
obtaining the coordinateSystem: Geo. Why not directly add this functionality to
the echartsInstance API? Moreover, functions like convertFromPixel and
convertToPixel from the Geo class have already been exposed in the
echartsInstance, making it straightforward to implement getRegionByCoord.
### What does the proposed API look like?
we can get region by screen coord, directly add the method
`getRegionByCoord` from the `Geo` class to `echartsInstance`.
the current implementation:
`
const coordinateSystem =
echartsInstance.getModel().getSeriesByIndex(0).coordinateSystem；
const coords = echartsInstance.convertFromPixel({geoIndex: 0,},[x,y])；
const region = coordinateSystem.getRegionByCoord(coords)
`
the desired implementation:
`const region = echartsInstance .getRegionByCoord({finder,coords})`
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