Unrecoverable crash (segfault) when running tcsvol(type = "alpha")

[Bisaloo]

A user has reported an unrecoverable crash when running tcsvol(type = "alpha") on their data. They have been kind enough to share their data and I am able to reproduce the issue.

I's not a really an issue with pavo. It's an issue in one of our dependencies: alphashape3d and unfortunately, there's nothing we can do about it.

I've opened an issue in their GitHub repository with a modified version of the problematic data: tlafarge/alphashape3d#12.

As a temporary workaround, it is possible to dodge the issue by running round() on the tcs / colspace object right before calling tcsvol(type = "alpha").
In this specific case, it worked by rounding to 6 digits (round(my_tcs, digits = 6)) but your mileage might vary. Rounding while keeping such a high precision is not likely to be an issue as it barely modify the values.