Output laserscan cannot be subscribed to properly about pointcloud_to_laserscan

[hidmic]

@CFZeon IIUC what you describe has less to do with pointcould_to_laserscan than with proper pub-sub, which makes this a non-issue. I don't if you're familiar with http://answers.ros.org/, but we typically encourage folks to ask questions there instead. That increases the likelihood of you getting a prompt response, and the broader community can benefit from that exchange. Thus, I'll proceed to close this issue.

Do you know why this happens?

I'd verify you have matching QoS settings, so start with.

[qzsrh]

I also had the same problem, please how did you solve this problem in the end

[DarK404]

It should be fixed by setting up the same the reliability in my case
use ros2 topic info /scan --verbose to check the QoS settings, already used.

you can edit the code like this!

pub_ = this->create_publisher<sensor_msgs::msg::LaserScan>("scan", rclcpp::SensorDataQoS());

pub_ = this->create_publisher<sensor_msgs::msg::LaserScan>("scan", rclcpp::SensorDataQoS().reliability(RMW_QOS_POLICY_RELIABILITY_RELIABLE));