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Brief Information

This pull request is in the type of:

  • bug fixing
  • new feature
  • others

What does this PR do?

Adds tooltip.trigger option for active items:
tooltip.trigger = 'activeItem'
It enables showing tooltip only for items that are active (not modified by visualMap) when visualMap is present. At the same time it doesn't modify current logic implemented for `tooltip.trigger = 'item', which is a default option.

Fixed issues

Details

Before: What was the problem?

If item is disabled by visualMap, tooltip is still being shown, even if there is no node.

Image

After: How does it behave after the fixing?

If user sets tooltip.trigger = 'activeItem', if item is disabled by visualMap, it won't trigger tooltip.

Screenshot 2025-06-23 at 15 28 01
Screenshot 2025-06-23 at 15 28 21

Document Info

One of the following should be checked.

  • This PR doesn't relate to document changes
  • The document should be updated later
  • The document changes have been made in apache/echarts-doc#xxx

Misc

ZRender Changes

  • This PR depends on ZRender changes (ecomfe/zrender#xxx).

Related test cases or examples to use the new APIs

N.A.

Others

Merging options

  • Please squash the commits into a single one when merging.

Other information

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