Markus Vieth

@al-tu The new test(s) don't seem to compile yet

> @kunaltyagi @mvieth hello! do you have any idea why [one particular test](https://dev.azure.com/PointCloudLibrary/pcl/_build/results?buildId=21038&view=results) on clang/macos catalina fails? may this be a flaky situation? it would be nice to be able...

@mathemaphysics What are you trying to do and what is the problem? In the original issue, the exception was thrown when running the openni2_viewer. But you say that one works...

> In theory its not, just outdated a lot - but it can still be done in the that way, so maybe I should just add this and not remove...

> Hi, can I work on this issue? I can see a merged and an open branch referring to this issue right now, so if this performance improvement is still...

Sorry for the delay, there were some other PRs and issues that needed attention. So I think it could make sense to add functions to PCLPointCloud2 for accessing data with...

> The passthrough filter for the "rgb" field should convert the rgb value into a intensity/grayscale value and then filter min and max based on that grayscale value IMO, if...

@1ros0 That sounds like a good idea (maybe only a warning for rgb, error for non-float fields). Would you be interested in opening a pull request for this?

@1ros0 Are you still planning to open a pull request?

Thank you @xq198109 for reporting this and @tin1254 for looking into it further. The first thing we should do is to create one or more new tests in test/filters/test_local_maximum.cpp, since...