Exporting ply file when multiple cameras are connected

[Ankush1909IIT]

---

Required Info
Camera Model	{D400 }
Operating System & Version	{Win (8.1/10)
SDK Version	{ legacy / 2.. }
Language	{python }
Segment	{Robot/Smartphone/VR/AR/others }

Issue Description

Hi,

I have used this code to export_to_ply for one camera connected.

`import numpy as np
import pyrealsense2 as rs
import numpy as np

print("Environment Ready")

pc = rs.pointcloud()
pipe = rs.pipeline()

#Create a config and configure the pipeline to stream

config = rs.config()
config.enable_stream(rs.stream.depth, 640, 480, rs.format.z16, 30)
config.enable_stream(rs.stream.color, 640, 480, rs.format.rgb8, 30)

Start streaming

profile = pipe.start(config)
align_to = rs.stream.color
align = rs.align(align_to)

for x in range(10):
pipe.wait_for_frames()

frames = []
for x in range(2):
frames = pipe.wait_for_frames()
aligned_frames = align.process(frames)

# Get aligned frames
aligned_depth_frame = aligned_frames.get_depth_frame() 
color_frame = aligned_frames.get_color_frame()

points = pc.calculate(aligned_depth_frame)
pc.map_to(color_frame)
print("Saving to 1.ply...")
points.export_to_ply("1.ply", color_frame)

print("Done")
`

I was just wondering if we have a code to perform the same task, when multiple cameras are connected. If I have four cameras, it should return 4 ply files, one for each camera.

[MartyG-RealSense]

Hi @Ankush1909IIT It is possible to export data to file from multiple cameras by creating a separate pipeline and configuration for each camera, like the Python script at #1735 (comment)

Whilst that script is for exporting depth and color as jpg image files, you may be able to adapt the script for .ply export instead.

[MartyG-RealSense]

Hi @Ankush1909IIT Do you require further assistance with this case, please? Thanks!

[Ankush1909IIT]

Hi @MartyG-RealSense , I am working on it, by trying to modify the code that you shared. I will update here if i can get it working.

[MartyG-RealSense]

Thanks very much @Ankush1909IIT for the update. Good luck!

[MartyG-RealSense]

Hi @Ankush1909IIT Do you have an update about this case that you can provide, please? Thanks!

[MartyG-RealSense]

Hi @Ankush1909IIT Do you require further assistance with this case, please? Thanks!

[Ankush1909IIT]

Unfortunately no. I will close this meanwhile. Thanks

[MartyG-RealSense]

Thanks very much for the update, @Ankush1909IIT