Hello, if you are aiming to export a color xyzrgb ply file then the only Python script for doing so with export_to_ply that is known to work is at #6194 (comment)

If you do not require color to be included in the ply file then the RealSense SDK has an export_to_ply example program called export_ply_example.py at the link below.

https://github.com/IntelRealSense/librealsense/blob/master/wrappers/python/examples/export_ply_example.py

Hi @MartyG-RealSense , thanks for your reply.I got the ply file with color by using points.export_to_ply, but it is a binary file. How do I get the value of xyzrgb from it?Or whether non binary files can be generated, such as using ply.set_option(rs.save_to_ply.option_ply_binary, False)

A RealSense team member advises at #6677 (comment) that it is not possible to save to ASCII (non-binary) with export_to_ply.

save_to_ply has the option to set binary to false as you mention, though color export has not previously worked with it when its ignore_color parameter has been set to false. It has been a couple of years since the Python script at #7747 (comment) was last tested by a RealSense user though, so you could try it to see whether it can now export color.

Apologies for the delay in responding further. I read some answers( #9531) about you and understood the limitations of these methods.
But I found a way to read binary ply files by using plyfile.PlyData.read(). It solves the problem that I want to read xyzrgb.
Thanks for your help! And I have a new problem, so I will close the case and start a new one.

You are very welcome. Thanks very much for the update!