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Add support for ROS 2 (Humble) #18

Merged
merged 19 commits into from
Mar 12, 2024
Merged

Add support for ROS 2 (Humble) #18

merged 19 commits into from
Mar 12, 2024

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HansRobo
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@HansRobo HansRobo commented Mar 2, 2024

abstruct

I imported derverbles from choreonoid/choreonoid_ros2 and added some fixes.
With this pull-request, this repository is configured to be buildable on both ROS 1 and ROS 2.

The major differences between ROS 1 version and ROS 2 version are as follows.

ROS configuration

ROS 1

  • A choreonoid app containing a ROS plugin behaves as a single ROS context, a node.
  • The plugin initialization blocks the choreonoid app launch if there is no connection to roscore.

ROS 2

  • Since there is no ROS 2-related processing in plugin initialization, it does not block the app launch.
  • ROS 2 plugin can be loaded and used in choreonoid app without modification for the plugin.
  • Each of WorldROS2Item and BodyROS2Item operates as its own ROS 2 context and node for each instance of the item.

ros_control support

ROS 1

ros_control support is available now.

ROS 2

ros_control support is not available now.
However, we plan to support it in the future.

Build instruction for ROS 2 (Humble, Ubuntu22.04)

mkdir -p cnoid_ws/src
cd cnoid_ws/src
git clone [email protected]:choreonoid/choreonoid.git
git clone -b merge_choreonoid_ros2 [email protected]:choreonoid/choreonoid_ros.git
cd ..
source /opt/ros/humble/setup.bash
rosdep install -iy --from-paths src
colcon build --symlink-install

Note: Please ignore the error from choreonoid with catkin, when running rosdep (Fixed in choreonoid/choreonoid#36)

HansRobo added 10 commits March 1, 2024 22:45
* Fix library install destination

* Set include directories in CMakeLists.txt

* Use generalized plugin path for app

* Delete duplicated-instanciated plugin

* Update ros2 to humble in build test workflow

* Update build dependencies (ref: latest install-requisites-ubuntu-22.04.sh)

* Do apt update/upgrade in build workflow

* Use osrf/ros:humble-desktop-jammy as build workflow base image

* Update ros-tooling/action-ros-ci

* Add libzip-dev to install dependencies

* Fix plugin/CMakeLists.txt

* Clean up build test workflow

* Skip test on build test workflow

* Add python3-colcon-lcov-result / python3-colcon-coveragepy-result to dependencies
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@ssr-yuki ssr-yuki left a comment

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Thank you for your fantastic development. I leave some comments for improvement and clarification of the codes.

While we still need to work for further implementation, we now get a foot in the door of ROS 2 with your PR!

src/node/choreonoid_ros2.cpp Outdated Show resolved Hide resolved
src/node/choreonoid_ros2.cpp Outdated Show resolved Hide resolved

bool BodyROS2Item::store(Archive &archive)
{
archive.write("body_ros_version", 0);
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The parameter body_ros_version is no longer used as not restored in the next function.

src/plugin/BodyROS2Item.cpp Outdated Show resolved Hide resolved

jointStatePublisher
= rosNode->create_publisher<sensor_msgs::msg::JointState>(getROS2Name("joint_states"),
1000);
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just my interest: is 1000 a good choice in ROS 2 publication?

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The history depth for publisher should be comprehensively judged based on the cycle of publication, the importance of the content, the environment, etc.
I don't think 1000 (which can withstand 10 seconds of communication loss) is appropriate.
The old joint state has almost no value, so if a communication breakdown occurs, the old data should be dropped and new data published.
This is the same between ROS 1 and 2.

src/plugin/WorldROS2Item.h Outdated Show resolved Hide resolved
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Thank you very much!

@ssr-yuki ssr-yuki merged commit 86b3adf into master Mar 12, 2024
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@ssr-yuki ssr-yuki deleted the merge_choreonoid_ros2 branch March 12, 2024 07:12
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2 participants