Ibrahim Essam's profile - activity

@gvdhoom updated.

here is an example for anyone wondering how to do it. https://github.com/HemaZ/FastRTPS-ROS2 First we need to get all t

Hello ROS2 community, I'm trying to publish video camera images from opencv using fastRTPS standalone to ROS2 Node. I've copied Image.idl from ROS2, built it like the HelloWorld example from fastRTPS. changed topicname to rt/topicname and added the DS_ namespace as the answer in this post suggests link. when I try to publish the image it shows on ROS2 network using ros2 topic echo but after filling the data field of Image message with OpenCV MAT data. nothing shows. I use the following function to convert OpenCV MAT to Image Message

 void toImageMsg(sensor_msgs::msg::Image & ros_image, cv::Mat &image)
{
ros_image.height(image.rows);

ros_image.width(image.cols);

ros_image.encoding("bgr8");

ros_image.step(image.cols * image.elemSize());

size_t size = ros_image.step() * image.rows;

ros_image.data().resize(size);

memcpy(&ros_image.data()[0], image.data, size);
}

then mp_publisher->write(&st);

what I'm doing wrong?

the full project is here https://github.com/HemaZ/FastRTPS-ROS2

thank you in advance

here is an example for anyone wondering how to do it. https://github.com/HemaZ/FastRTPS-ROS2

problem publishing OpenCV Image from FastRTPS to ROS2 Hello ROS2 community, I'm trying to publish video camera images fr

Waiting for service /gazebo/spawn_urdf_model error hello, i was following this video to learn ROS https://www.youtube.

Waiting for service /gazebo/spawn_urdf_model error hello, i was following this video to learn ROS https://www.youtube.

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