Is there a way to know the style is declutter？ about openlayers HOT 4 OPEN

Unfortunately he only way to determine that is to do hit detection for a known point on the declutter candidate.

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@ahocevar In fact, hitDetectionRenderer can only tell me the target that the mouse is hitting, but it cannot tell me that all points on the map are decluttered. Is there a way for me to re-implement the text declutter myself?

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@longyi-xw Yes there is, you could use https://github.com/Geovation/labelgun.

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@ahocevar Thank you for your suggestion, but I use styleFunction. I use three styles combined to form the visible points. If I use this method, I need to additionally render the same part of the data, and the points and labels are stripped. Is there any performance issue? There will be some impact. I now use vectorImage and style caching. There are more than 5,000 data. It seems a bit difficult to double the rendering and control the memory within 400.

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