david.hodo's profile - activity

I didn't check the posted code, but there is a working C++ example here: https://github.com/GAVLab/gavlab_atrv/blob/mas

Awesome. I didn't even think to try the old setup. Thanks.

Is there a repo file available that produces a minimal ROS2 installation similar to ros-base from ROS1?

Have you sourced the install/setup.bash file in the workspace where you built publish?

ROS_HOSTNAME should be your local hostname, not the name of the master you're trying to connect to. In your example on

ROS_HOSTNAME should be your local hostname, not the name of the master you're trying to connect to. In your example on

Minimal ROS2 Installation Is there a repo file available that produces a minimal ROS2 installation similar to ros-base f

There's an example project that demonstrates talking between native FastRTPS and ROS2 here if it's useful to anyone.

I've seen in the release notes for Dashing that the message generation pipeline now supports IDL files directly. Are there any examples available on how to actually use an IDL file directly in a messages package? Can I pass a list of IDL files directly to rosidl_generate_interfaces()?

[UPDATE]

Based on the advice of sloretz I've tried creating an example project that includes the MyMessage.idl test case from rosidl_parser. It's located at idl_msgs. It tries to generate messages from a single IDL file. On Ubuntu 18.04 with Dashing, running 'colcon build' on the package produces several errors:

davidhodo@ubuntu:~/devel/idl_test_ws$ colcon build
Starting >>> idl_msgs
--- stderr: idl_msgs
AssertionError in template '/opt/ros/dashing/share/rosidl_generator_cpp/cmake/../resource/msg__struct.hpp.em': unknown primitive type 'long double'
AssertionError when expanding 'idl__struct.hpp.em' into '/home/davidhodo/devel/idl_test_ws/build/idl_msgs/rosidl_generator_cpp/idl_msgs/idl/my_message__struct.hpp': unknown primiti
ve type 'long double'
Error processing idl file: /home/davidhodo/devel/idl_test_ws/src/idl_msgs/idl/MyMessage.idl
TypeError in template '/opt/ros/dashing/share/rosidl_generator_dds_idl/resource/msg.idl.em': %d format: a number is required, not str
TypeError when expanding 'idl.idl.em' into '/home/davidhodo/devel/idl_test_ws/build/idl_msgs/rosidl_generator_dds_idl/idl_msgs/idl/dds_opensplice/MyMessage_.idl': %d format: a numb
er is required, not str
Error processing idl file: /home/davidhodo/devel/idl_test_ws/src/idl_msgs/idl/MyMessage.idl

The full error output is available here.

Any suggestions would be appreciated.

[UPDATE2]

I was able to get it to build with a few modifications. I had to remove the long double and wchar types as well as the includes. I also had to change the top level module name to match my package name and the next level module name from 'msg' to 'idl'.

module idl_msgs{
  module idl {

}
}

That compiled and gave me a working message. The updated code is available at: https://github.com/davidhodo/idl_msgs.git

Thanks,

David

ROS2 Messages from IDL Files I've seen in the release notes for Dashing that the message generation pipeline now support

Thanks. I've tried creating a basic package based on those test messages and haven't been able to get it successfully b

ROS2 Messages from IDL Files I've seen in the release notes for Dashing that the message generation pipeline now support

ROS2 Messages from IDL Files I've seen in the release notes for Dashing that the message generation pipeline now support

Thanks. That fixed it. Having a ros2bag and rosbag2 package is somewhat confusing. Is there any documentation on the

I'm running ROS2 Crystal on Ubuntu 18.04. I've installed the ros-crystal-rosbag2 package, but am not sure how to run it. From the Github readme it looks like this should add a verb to the ROS2 command, but when I run:

ros2 bag record -a

I get the following error:

usage: ros2 [-h] Call `ros2 <command> -h` for more detailed usage. ...
ros2: error: argument Call `ros2 <command> -h` for more detailed usage.: invalid choice: 'bag' (choose from 'daemon', 'extension_points', 'extensions', 'launch', 'lifecycle', 'msg', 'multicast', 'node', 'param', 'pkg', 'run', 'service', 'srv', 'topic')

How do I run rosbag2 in Crystal?

Thanks,

David

How do you run rosbag2 in ROS2 Crystal? I'm running ROS2 Crystal on Ubuntu 18.04. I've installed the ros-crystal-rosbag

Were you ever able to figure this out? I've hit the same issue. The lifecycle publishers have on_activate and on_deact

I see where the changes to the REP were merged, but it doesn't look like the condition on build_type is being checked in

I had assumed it was because the win_ros tools don't officially support VS2012. I had not looked into it. The boost packages and the other ROS packages build fine and work. They produce the same warning so I'm not sure it's related, but I'll look into it. Thanks.

I'm trying to compile Rviz on OSX (10.8) and am having trouble getting the Ogre dependency to compile. It fails with the following error:

BUILD FAILED: Plugin_CgProgramManager.dylib not created. Is nvidia-cg-toolkit installed correctly?

I found a previous discussion of this issue for Lion here: http://answers.ros.org/question/12825/more-problems-building-ogre-on-osx-lion/ but trying the suggestions there does not fix the issue.

The Nvidia Cg toolkit (version 3.0) was installed from the package linked to from the ROS OSX installation instructions. The file mentioned in the previous question "/usr/local/share/ros/nvidia-cg-version.installed" does not exist, but running "rosdep install ogre" states that all dependencies are correctly installed. Cmake also seems to correctly find the Cg Framework installation directory (/Library/Frameworks/Cg.framework)

Any suggestions?

Thanks.

EDIT: The full build output can be found at: https://gist.github.com/3625440

EDIT 2: It actually looks like the error might be caused by an issue with pbxcp being moved in XCode 4.3. There is a patch dealing with the issue here: https://code.ros.org/trac/ros-pkg/browser/stacks/visualization_common/trunk/ogre/ditto_pbxcp_osx.patch?rev=39177 but the patch fails to install on my system when trying to patch "Samples/Browser/CMakeLists.txt"

I'm been able to install ROS Groovy on Windows using the win_ros instructions (thanks to the win_ros guys for all the great work on that recently!). I'm having trouble building my own catkin packages though. How do you set up a chained catkin workspace on Windows? Is this even a feature that is supported yet?

I have my main ROS workspace in c:\win_ros\src, c:\win_ros\devel, and c:\win_ros\build. Everything built properly and the tutorial apps work. I'm trying to create a new workspace for my catkinized packages in c:\my_ws in the same way I do on Linux but without success. I've tried the following:

 c:\win_ros\devel\setup.bat
 cd\my_ws
 winros_init_workspace ./
 winros_init_build
 winros_make

Cmake is unable to find catkin and gives the following error:

CMake Error at CMakeLists.txt:47 (message):
  find_package(catkin) failed.  catkin was neither found in the workspace nor
  in the CMAKE_PREFIX_PATH.  One reason may be that no ROS setup.sh was
  sourced before.


-- Configuring incomplete, errors occurred!

Executing nmake in the root build directory

Any suggestions? Thanks.