Hi,
First and important: Don't use stable branch, use master.
I had a closer look into my last success:
I used this (stripped down ros package_set):
* https://github.com/planthaber/rock-ros-package_set
* or: - github: planthaber/rock-ros-package_set
With this buildconf: https://github.com/planthaber/rock-ros-buildconf
(some packages defined here are on an internal server)
But the important part is this part the overrides.yml:
overrides:
- tools/rtt_transports/ros:
github: planthaber/rtt_ros_transport
branch: melodic
https://github.com/planthaber/rtt_ros_transport/tree/melodic
The original Idea was to create a seperate workspace with a geneic
repeater task that translates rock-ros in a docker image.
But the work was discontinued because you need to set ip up also and
extend the workspace with additional typekits.
You asked for other ways to solve it: The DFKI created a library to
control robots independent from the Robot OS (ROS/ROCK):
https://github.com/dfki-ric/robot_remote_control
Perpaps it could be used, if not, uder the hood it uses ZMQ and google
protobuf to transfer the data. Which could als be an option at the cost
of one additional conversion.
Best, Steffen
Am 17.06.21 um 15:47 schrieb Vicu-Mihalis Maer:
Hello,
I am trying to send some data between Rock and ROS. I am using ubuntu 18.04.
I have tried following the Rock/ROS bridge examples on the rock-robotics
website but I ran into the issue described here:
https://github.com/rock-ros/package_set/issues/1
However, reading through some e-mail threads in the rock-dev mailing
list archive e.g.:
https://www.mail-archive.com/rock-dev@dfki.de/msg01771.html
I have found that the package-set is not necessarily required. I have
tried the method described in the e-mail thread above, but I have two
problems. If I try installing the stable branch, I get an error from
tools/roby and using the master branch, I get the following error:
ImportError: No module named genmsg
CMake Error at
/opt/ros/melodic/share/catkin/cmake/safe_execute_process.cmake:11 (message):
The module does exist.
Is there any other way to establish communication between the two
systems? I don't need to build ROS nodes within a rock workspace neither
the other way around, just a message transport between ports and ROS topics.
Any help would be appreciated.
Best regards,
Vicu Maer
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Steffen Planthaber
Besuchsadresse der Nebengeschäftstelle:
DFKI GmbH
Robotics Innovation Center
Robert-Hooke-Straße 5
28359 Bremen, Germany
Postadresse der Hauptgeschäftsstelle Standort Bremen:
DFKI GmbH
Robotics Innovation Center
Robert-Hooke-Straße 1
28359 Bremen, Germany
Tel.: +49 421 178 45-4125
Zentrale: +49 421 178 45-0
Fax: +49 421 178 45-4150 (Faxe bitte namentlich kennzeichnen)
E-Mail: steffen.plantha...@dfki.de
Weitere Informationen: http://www.dfki.de/robotik
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