O3DVisualizer: Make size of selection indicator points adjustable, choose smarter default and make points removable #6725
Description
Checklist
- I have searched for similar issues.
- For Python issues, I have tested with the latest development wheel.
- I have checked the release documentation and the latest documentation (for
mainbranch).
Proposed new feature or change
In the O3DVisualizer the current selection indicators points are massive if you load a point cloud which is scaled in e.g. mm:
In the "old" VisualizerWithEditing it looks fine, but I cannot use it as it crashes when trying to run it in a non-blocking way (see #1605 or #4378):
Smaller points are essential for robustly performing a manual N-point registration by point picking. So an UI element and API to adjust the point size would be appreciated. Also a smart default (like in the old visualizer) would be nice.
Further it would be helpful to be able to remove points after the fact, if one misclicked (again, like in the old visualizer).
References
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Additional information
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