Scatter3D does not remember its visual state in certain conditions
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- Dominant language
- JavaScript
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Description
Visual state is zoom level, orientation, position, etc...
Checking for saving state: simply click on one of this control buttons:
or call Plotly.restyle. None of these actions should change the visual state.
Bugs briefly:
- Mouse wheel zooming not saving last zoom lvl (always reverted to previous zoom lvl).
- Touch pad zooming/rotating/moving not saved at all.
Сonditions under which the visual state is not preserved:
Zoom without mouse click - by mouse wheel.
Each odd iteration of zoom level with mouse wheel - will not be remembered. Why odd? Because plotly will save previous zoomlvl after next zoom. In other words - mouse wheel zoomlvl will be reverted 1 step back after restyle or other refresh actions.
This make mouse wheel zooming not usable with updating by time interval (Plotly.restyle) plots. Side note - if your click any where in the plot after mouse wheel zoom - zoomlvl will be stored.
Any plot manipulation with touch pad.
Here same behavior - touch any where in the plot after manipulating - will store visual state. See video below.
Repro: https://codepen.io/k_sze/pen/WXgNoJ (from #2181). You can click buttons or call restyle() function in console.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked CodePen reproduction and test Scatter3D interactions followed by Plotly.restyle or control-button updates. Trace the visual-state handling for mouse-wheel and touch-pad changes; done means zoom, orientation, and position remain at their latest values after refresh actions.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- data-visualization, frontend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100