ali ekber celik's profile - activity

How to create a mock publisher in ROS2? Hello I would like to create a mock publisher for my ROS2 publisher unit tests.

How to create a mock publisher in ROS2? Hello I would like to create a mock publisher for my ROS2 publisher unit tests.

How to create a mock publisher in ROS2? Hello I would like to create a mock publisher for my ROS2 publisher unit tests.

How to create a mock publisher in ROS2? Hello I would like to create a mock publisher for my ROS2 publisher unit tests.

Hi, even though it's been a while since you asked the question, did you figure out the reason behind this issue?

By the way, the corresponding method of getNumPublishers() in ROS2 is count_publishers()

By the way, the corresponding method of getNumPublishers in ROS2 is count_publishers

Thanks for your answer. I will take look at rclcpp API more and probably the method you told will help me somehow.

Thanks for your answers. I will take look at rclcpp API more and probably the method you told will help me somehow.

Hello everyone,

I am working with ROS2 in my project and I know ROS/ROS2 is capable to handle multiple publishers and subscribers on the same topic. Due to some limitations in my project, I would like to prevent the second publisher to publish on the same topic. It needs to be kind of one publisher for one topic.

Basically, is it something doable in the ROS environment? If so, is there any option or notification infrastructure that notifies the first publisher or any other node?

Thanks in advance.

How to prevent the second publisher on the same topic? Hello everyone, I am working with ROS2 in my project and I know

How to prevent the second publisher on the same topic? Hello everyone, I am working with ROS2 in my project and I know

ROS2 Max number of nodes in a single process Is there any limit on the number of nodes which can be used in a single pro

Hi, did you find any solution in regards to this issue? I also have the same issue.

Hi, did you find any solution in regards to this issue?

Hi,

I have built a map using gmapping package and i got a map.yaml file.But how should i use rviz to estimate the inital pose and how can i move my robot on rviz?

I use ROS Hydro and Gazebo 1.9.1

Thanks.

Can you give some information about how to use g2o?Do i have to use it with a ros distribution? is there any advantage to use them together?if yes,how can i interoperate them?

thanks.

Can you detail your solution please?i have just faced same problem.

Hi,

I am trying to use occupancy_grid_utils/ray_tracer.h library in my ros program for localization.But i get an error due to occupancy_grid_utils/ray_tracer.h library does not exist in ros hydro.I got these errors;

CMake Error at /opt/ros/hydro/share/catkin/cmake/catkinConfig.cmake:72 (find_package):Could not find a package configuration file provided by occupancy_grid_utils with any of the following names:

occupancy_grid_utilsConfig.cmake
occupancy_grid_utils-config.cmake

Add the installation prefix of "occupancy_grid_utils" to CMAKE_PREFIX_PATH or set "occupancy_grid_utils_DIR" to a directory containing one of the above files. If "occupancy_grid_utils" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): particle_filter/CMakeLists.txt:6 (find_package)`

Is there any way to use this library in ros hydro?

Thanks.