runtime/README.md

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# Robossembler ROS2
Repo for ROS2 packages related to Robossembler
## Instructions
### Requirements
* OS: Ubuntu 22.04
* ROS 2 Humble
* nlohman/json
### Dependencies
These are the primary dependencies required to use this project.
* MoveIt 2
> Install/build a version based on the selected ROS 2 release
* Gazebo Fortress
* [nlohman/json](https://github.com/nlohmann/json/releases/tag/v3.11.3)
### Build
1. Clone the repository
2. Build packages `colcon build`
Prepare workspace & install dependencies (So far only tested with UR robot arm)
```bash
mkdir -p ~/robossembler_ws/src && cd ~/robossembler_ws/src
git clone https://gitlab.com/robosphere/robossembler-ros2
vcs import . < robossembler-ros2/repos/sim.rbs.repos
cd ..
rosdep install -y -r -q --from-paths src --ignore-src --rosdistro humble
colcon build --cmake-args -DCMAKE_BUILD_TYPE=Release --symlink-install
```
Additionally, if you want to use Cartesian controllers, such as stiffness or others, you need to execute the following:
```
# in directory robossembler_ws/src
vcs import . < robossembler-ros2/repos/cartesian_controllers.repos
```
This will also install `ros2_control` and `gz_ros2_control` as packages, so it is recommended to delete global packages if they have been installed.
### Set Gazebo enviroment variables
Replace `[WS_FOLDER]` with your workspace folder
```bash
echo "export IGN_GAZEBO_RESOURCE_PATH=${IGN_GAZEBO_RESOURCE_PATH}:~/[WS_FOLDER]/install/rbs_simulation/share/rbs_simulation/" >> ~/.bashrc
# or if you have alredy built the workspace
echo "export IGN_GAZEBO_RESOURCE_PATH=${IGN_GAZEBO_RESOURCE_PATH}:~/$(ros2 pkg prefix rbs_simulation)/share/rbs_simulation/" >> ~/.bashrc
```
### Examples
Activate current ROS2 enviroment:
```
. install/setup.bash
```
Launch MoveIt2, Gazebo, RViz:
```bash
ros2 launch rbs_bringup bringup.launch.py
```
Start BT node in another terminal
```
ros2 launch rbs_bt_executor rbs_executor.launch.py
```
### Links
* [bt_v3_cpp](https://www.behaviortree.dev)
* [moveit2](https://moveit.picknik.ai/humble/index.html)