Rviz pointcloud2 alpha/size
Hi all, Couldn't find an answer on the web, although this does not seem to me as such an exotic issue.
I know about the option to color the point cloud by according to a given field in the cloud, but is it possible in any way to change either the size or alpha of the cloud based on a field? (e.g. bigger or stronger points with higher intensity).
Many thanks to whoever can help, and also to those who can't :)
Cheers, Steve
Asked by StevenCoral on 2017-11-12 03:47:54 UTC
Comments
This is purely for visualisation purposes, right? Afaict the PointCloud(2) display type doesn't support that. Might also make for a rather chaotic display.
But a PR that adds this would probably be considered.
Asked by gvdhoorn on 2017-11-12 07:19:07 UTC
Yup, its for visualization only. It would not be chaotic if max and min sizes/alphas would be editable. This is similar to changing the AxisColor colormap, which is also unavailable. PR you mean as a request? where can I send those?
Asked by StevenCoral on 2017-11-12 09:47:38 UTC
I'm not sure. Pointclouds can be pretty noisy, and even with set min-max values that could lead to rapidly changing cloud visualisation.
no :) as a contribution (ie: you implement it).
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Asked by gvdhoorn on 2017-11-12 09:50:18 UTC
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ros-visualization/rviz is the repository for all things RViz.
Asked by gvdhoorn on 2017-11-12 09:51:10 UTC
Thanks, I would love to but I haven't the slightest idea where to start. I'm not a developer (heck, not even a programmer) so I tend to get lost inside codes.
Asked by StevenCoral on 2017-11-13 07:27:24 UTC
Well you could post an issue and mark it clearly as an 'enhancement request'.
But then someone else would have to pick that up and implement it. As most people are quite busy working on their own stuff already, I imagine it could take a while before your suggestion would be implemented.
Asked by gvdhoorn on 2017-11-13 07:29:47 UTC