PointCloudLibrary / PointCloudLibrary/pcl
Changing the color of some points in PCLVisualizer
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- Dominant language
- C++
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Description
I am working on a situation where the user interactively "paints" the point cloud. That means, every frame, the color of some number of points in the cloud needs to be changed. Looking at PCLVisualizer.h, one way to achieve this seems to be to use the "UpdatePointCloud" method. But, that method takes the entire point cloud as input and hence seems inefficient. Is there a better, more efficient way to change the color of just a small number of points in the point cloud being rendered?
Thanks.
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 PCLVisualizer.h and inspect UpdatePointCloud, focusing on how point-cloud colors are updated for rendering. Determine whether the current API supports changing only a subset of points and define a concrete efficient behavior for interactive painting; done requires an agreed implementation approach and corresponding validation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- computer-vision
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100