EntityCluster BUG Resolve the issue of incomplete aggregation.

[Duan971231]

fixes: #13062

Based on this issue, I have reviewed the source code of ElementCluster.js and found that using kdBush after upgrading from v3.0.0 to v4.0.2, continue use Uint32Array will result in negative numbers being represented as 2 ^ 32. When using index. range in the code, there will be no expected results.

If not filled in here, the default will still be Float64Array

Expected adoption

[github-actions]

Thank you for the pull request, @Duan971231!

✅ We can confirm we have a CLA on file for you.

[javagl]

@lukemckinstry (You did the initial triage on the issue) : This PR fixes the issue, which also affects the currently deployed 'Clustering' sandcastle.

Here is a comparison of the current main state, and the state of this PR:

The state of this PR is the right one, literally.

[lukemckinstry]

Thanks for this PR and apologies for the slow follow up.
I see the improvement clearly in the example linked in #13062.
I actually do not see a difference between the current prod clustering sandcastle and this branch (I am unable to reproduce the left and right states above), but I also do not see any regressions and clustering appears to be working as expected.

[javagl]

I actually do not see a difference between the current prod clustering sandcastle and this branch

A somewhat reliable way for reproducing the issue in https://sandcastle.cesium.com/index.html?id=clustering is to zoom in a bit (to the USA), move the westcoast just out of view, and then drag right, moving the westcoast back into the view. The newly appearing/visible cities/points will not be clustered (only when dragging even further).

[lukemckinstry]

Thanks @javagl that makes it very clear so I see the improvement now.
@Duan971231 are you able to add a changelog entry for this PR before we merge?

[Duan971231]

@lukemckinstry Hello, which changelog entry should I change? the CHANGELOG.md in the code hasn't been updated for quite some time.

[javagl]

The file to be modified is https://github.com/CesiumGS/cesium/blob/main/CHANGES.md - it's just about adding a line similar to the one that was added at 6a6627f , saying something like

- Fixed a bug where entities have not been clustered correctly [#13064](https://github.com/CesiumGS/cesium/pull/13064)

(adjust the wording as you see fit)

[Duan971231]

@javagl Okay, the code has been submitted