visgl / visgl/deck.gl

[Bug] PointCloudLayer The size of the points changes after rotate

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#7,971 2 comments 1 reaction 0 assignees View on GitHub

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Dominant language
TypeScript
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Description

Description

PointCloudLayer - Sometimes when you do some manipulations with the map (point Cloud): zoom out, zoom in, rotate -

  1. The points disappear (after zoom in)
  2. The dots become larger or smaller
    Is this a bug and can it be fixed? thank you

I am attaching screenshots and a video with reproduction from an official example
https://deck.gl/examples/point-cloud-layer to the Steps to Reproduce

Flavors
  • Script tag
  • React
  • Python/Jupyter notebook
  • MapboxOverlay
  • GoogleMapsOverlay
  • CartoLayer
  • ArcGIS
Expected Behavior

When changing the size of the map and its rotation, the sizes of the points do not change

Steps to Reproduce

1 Rotate the map (cloud points)
2 Zoom in the map
3 Zoom out the map
4 Rotate the map around the axis
5 Zoom in the map to its original size

  1. The dots disappear or their size becomes very small
    https://github.com/visgl/deck.gl/assets/10815947/fec03be3-b769-4b3e-92e6-4056918c4186

  2. The dots get bigger
    Before:
    before_change
    After:
    after_change

Environment
  • Framework version: -
  • Browser: Google Chrome 114.0.5735.106 (64)
  • OS: Ubuntu 22.04.02 LTS
Logs

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the official PointCloudLayer example linked in the issue and reproduce the rotate and zoom sequence in Chrome. Trace the PointCloudLayer rendering and viewport handling involved in that example; done means points remain visible and retain their size after the reported manipulations.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
data-visualization
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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