CesiumGS/cesium

Clustering no longer works when assigning a label to datasource entities

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#13.361 aperta il 3 apr 2026

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good first issuetype - bug

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Descrizione

What happened?

Using the sandcastle example for clustering, all I've added is the label object and an empty string to each entity. Adding the empty string causes the clustering to break, leaving only the points.

dataSourcePromise.then(function (dataSource) {
  for (const source of dataSource.entities.values) {
    source.label = {
      text: ''
    }
  }
  ...
})

Reproduction steps

See sandcastle example

Sandcastle example

https://sandcastle.cesium.com/#c=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

Environment

Browser: Chromium CesiumJS Version: 1.140.0 Operating System: MacOS

AI acknowledgment

  • I used AI to generate this issue report.
  • (If the above is checked) I have reviewed the AI-generated content before submitting.

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