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Is there a way to get the dimensions of an object in (Ignition) Gazebo? I guess it's solvable by implementing a custom plugin, but are there any simpler ways? Maybe a service i'm missing?

Update: To clarify, i want to know is the width/height/depth of a model's bounding box downloaded from fuel. I think this is what the ModelPhotoShoot plugin does internally: https://github.com/gazebosim/gz-sim/b...

Query the dimensions of an object Is there a way to get the dimensions of an object in (Ignition) Gazebo? I guess it's s

Thanks! I updated the question. I was thinking the size of a model, but if there is a solution for querying the bounding

Query the dimensions of an object Is there a way to get the dimensions of an object in (Ignition) Gazebo? I guess it's s

Query the dimensions of an object Is there a way to get the dimensions of an object in (Ignition) Gazebo? I guess it's s

Query the dimensions of an object Is there a way to get the dimensions of an object in (Ignition) Gazebo? I guess it's s

How can I spawn a model into a running simulation in Ignition Gazebo? I'm looking for something like rosrun gazebo spawn_model but for Ignition.

This was the closest thing I found but I couldn't get it working so far: https://github.com/ignitionrobotics/r...

In Ignition Gazebo Fortress the CLI --help says:

  --headless-rendering         Run rendering in headless mode      
  -s                           Run only the server (headless mode). This        
                               overrides -g, if it is also present.

What is the difference between --headless-rendering and the -s CLI options?

What is the difference between `--headless-rendering` and the `-s` CLI options? In Ignition Gazebo Fortress the CLI --he

Can Gazebo import normal, roughness and other maps of a Wavefront OBJ object When I use an .obj as mesh in the SDF file,

Can Gazebo import normal, roughness and other maps of a Wavefront OBJ object When I use an .obj as mesh in the SDF file,

Wait for Gazebo start in ROS2 launch file? Is there a way to wait until Ignition Gazebo initializes using RegisterEventH

Thank you!

Hi There,

ros_gz_bridge reports failure while the parameters seem to be correct:

$ ros2 run ros_gz_bridge parameter_bridge /cmd_vel@geometry_msgs/Twist@gz.msgs.Twist
[INFO] [1671392523.581891853] [ros_gz_bridge]: Creating GZ->ROS Bridge: [/cmd_vel (gz.msgs.Twist) -> /cmd_vel (geometry_msgs/Twist)] (Lazy 0)
[WARN] [1671392523.582115037] [ros_gz_bridge]: Failed to create a bridge for topic [/cmd_vel] with ROS2 type [/cmd_vel] to topic [geometry_msgs/Twist] with Gazebo Transport type [gz.msgs.Twist]

I'm using Gazebo Garden on the osrf/ros:humble-desktop Docker image. I have a robot in the simulation that i can control with the Teleop widget on the /cmd_vel topic. I installed the ros-humble-ros-gz-bridge with apt.

What else should i check to find the cause of the issue?

Update
Using ignition.msgs.Twist instead of gz.msgs.Twist removes the error, (even though i'm using Gazebo Garden). But the messages are still not transferred.

It seems like Gazebo is using the gz. version of the message. This could explain why ROS2 messages have no effect on the simulation:

gz topic -i -t  /cmd_vel 
Publishers [Address, Message Type]:
  tcp://172.17.0.1:39535, ignition.msgs.Twist
  tcp://172.17.0.1:42165, gz.msgs.Twist

Maybe i don't have some ROS message definitions installed? I installed gz-garden and ros-humble-gazebo-msgs from the official PPA.

For more info, ros2 topic info with the bridge, teleop_keyboard, and a ros2 echo running:

ros2 topic info -v /cmd_vel
Type: geometry_msgs/msg/Twist

Publisher count: 2

Node name: ros_gz_bridge
Node namespace: /
Topic type: geometry_msgs/msg/Twist
Endpoint type: PUBLISHER
GID: 01.0f.50.71.51.ab.45.39.01.00.00.00.00.00.12.03.00.00.00.00.00.00.00.00
QoS profile:
  Reliability: RELIABLE
  History (Depth): UNKNOWN
  Durability: VOLATILE
  Lifespan: Infinite
  Deadline: Infinite
  Liveliness: AUTOMATIC
  Liveliness lease duration: Infinite

Node name: teleop_twist_keyboard
Node namespace: /
Topic type: geometry_msgs/msg/Twist
Endpoint type: PUBLISHER
GID: 01.0f.50.71.da.d3.49.82.01.00.00.00.00.00.11.03.00.00.00.00.00.00.00.00
QoS profile:
  Reliability: RELIABLE
  History (Depth): UNKNOWN
  Durability: VOLATILE
  Lifespan: Infinite
  Deadline: Infinite
  Liveliness: AUTOMATIC
  Liveliness lease duration: Infinite

Subscription count: 2

Node name: ros_gz_bridge
Node namespace: /
Topic type: geometry_msgs/msg/Twist
Endpoint type: SUBSCRIPTION
GID: 01.0f.50.71.51.ab.45.39.01.00.00.00.00.00.13.04.00.00.00.00.00.00.00.00
QoS profile:
  Reliability: RELIABLE
  History (Depth): UNKNOWN
  Durability: VOLATILE
  Lifespan: Infinite
  Deadline: Infinite
  Liveliness: AUTOMATIC
  Liveliness lease duration: Infinite

Node name: _ros2cli_205184
Node namespace: /
Topic type: geometry_msgs/msg/Twist
Endpoint type: SUBSCRIPTION
GID: 01.0f.50.71.80.21.50.1f.01.00.00.00.00.00.05.04.00.00.00.00.00.00.00.00
QoS profile:
  Reliability: RELIABLE
  History (Depth): UNKNOWN
  Durability: VOLATILE
  Lifespan: Infinite
  Deadline: Infinite
  Liveliness: AUTOMATIC
  Liveliness lease duration: Infinite

For reference, a question about probably the same issue on robotics.stackexchange: https://robotics.stackexchange.com/qu

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