How can I extract x, y, z coordinates from PLY?

[AWeiz1]

Hi,

I'm using a D435i camera to create 3D surfaces for simulating work volumes in a robotic system.

Now I'm testing the accuracy of my surface and for this I need to extract the physical coordinates (x, y and z) of specific points from the PLY image I export.

How can I receive the coordinates from an exported PLY?

[MartyG]

I do not know of a way to extract XYZ coordinates from a ply, and my research did not lead to the discovery of a method either.

The easiest way to check your ply file will likely be to load it into a 3D modeling software package. A popular method of doing so with ply files generated with RealSense is an open source program called MeshLab. The link below has a guide to loading RealSense-created ply files into MeshLab and doing further work on it.

https://www.andreasjakl.com/capturing-3d-point-cloud-intel-realsense-converting-mesh-meshlab/

MeshLab is available from this link:

http://www.meshlab.net/

The ply can also be loaded into professional 3D modeling packages such as Blender. In the case of Blender, once Blender is installed and run, you can import a PLY by going to File > Import > Stanford (.ply). Then the imported ply data appears in Blender.