Error in rgb(points)

General
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1

Hello!

I have recently run into a problem reading .ply files into RStudio. I have been using the geomorph package and .ply files of 3D models used with the digit.fixed function. I have successfully worked on over 20 files, but 10 are not being read into R. The following error message pops up:

Error in rgb(points[, 4], points[, 5], points[, 6], maxColorValue = 255) : 
  color intensity -1, not in 0:255

Does anyone know what might be happening here? And more importantly how to fix it?

Thank you so much in advance for any help!
Alex

2

One of your value in points is negative and equal to -1. RGB have 3 intensity value that are between 0 and 255. I do not know specifically about .ply files and 3D model but it seems these files that can't be read have somehow wrong values...

It may be a good idea to open a bug report in the GH repo as you may have an edge case.