Numpy version problem for ROS2 based ZED SDK API usage

Software ROS2
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1

Hi there,

I below is what I did and what I want to do.
Two ZED X One were stereo-composed and calibrated.
And the bag file was saved by recording based on ROS2 using zed_multi_camera.launch.py .
What I’m trying to do is

  1. play collected bag files
  2. I want to develop a pipeline to publish depthmap in real time by applying natural mode as in ZED Depth viewer using topic subsribe and zed sdk api.

Currently, Ubuntu 22.04, ROS2 humble, and Jetson AGX Orin-based ZED SDK have 5.0.7.
ROS2-based cv_bridge requires the version numpy<2.0 and numpy>=2.0 to use ZED SDK 5.07 based api. the Python file code is written and executed in the same environment, causing a numpy version conflict.

How can we solve it in this situation?

2

Hi,

this is best done with two separate (python) processes running in two different environments, in each installed the correct set of dependencies. You can consider the two components as separate python packages. At the core of ROS(2), there is a inter-process communication (IPC) middleware…

There are ways to get along with one environment. If you really want it, ask copilot about it. It will explain all options in detail…

BR