phil123456's profile - activity

odometers are stuck to your robot wheels and as for map, well indeed makes no sense so far for me either

because it could change through time, these are transformation matrices describing frames of references between robot pa

because it could change through, these are transformation matrices, no the question remains, why EVERYBODY stumble upon

ok I fixed it by removing first the build directory, pfiuu now why is that (obsolete?) cyclone repo mentioned in the tut

tried SLAM, installed Cyclone, now nothing works anymore Hi, I try to implement SLAM with ROS 2 following this tutorial

why ? ROS1 could be installed on rasbpian

rviz2 connect to ros instance ? Hi, is it possible to rviz to the robot through network ? I used to do this from a ubu

oh yeah I made it work

ok in the terminal I see an error saying Sensitivity is not supported, this used to work in ROS1 it says supported modes

so ? how do you fix this ? this used to work with ROS 1

reliable selection ?

ok my bad, thx for the links

what I dont understand is that there is a :scan topic, and data are there, RVIZ should at least display data frames or a

all I found is this, but I am not sure what/how to check https://design.ros2.org/articles/qos.html

still no /scan data frames, while I can echo tons of data being generated on /scan topic seems RVIZ2 is just broken, in

still no /scan data frames, while I can echo tons of data being generated on /scan topic seems RVIZ2 is just broken, in

still no /scan frames seems RVIZ2 is just broken, in ROS it was working without any additional steps I am gonna scratch

global options/fixed frame is set to 'laser_frame' after running ros2 run tf2_ros static_transform_publisher 0 0 0 0 0

still not /scan frames seems RVIZ2 is just broken, in ROS it was working without any additional steps I am gonna scratch

global options/fixed frame is set to 'laser_frame' after running ros2 run tf2_ros static_transform_publisher 0 0 0 0 0

global options/fixed frame is set to laser_frame from ros2 run tf2_ros static_transform_publisher 0 0 0 0 0 0 world lase

tf is definitely there, that's the first issue I had

so nobody in the ROS community has some preference nor tips nor favorite method to share ? nobody here is RDB/VNC'ing hi

so nobody in the ROS community has some preference nor tips nor favorite method to share ? there is a reason I posted th

Hi,

I am trying to build the examples from the tutorials

I did precisely this

mkdir -p ros2_ws/src
cd ros2_ws
git clone https://github.com/ros2/examples src/examples -b foxy
cd src
colcon build --symlink-install

I get this

pi@ros-pi:~/WORK/ros2_ws$ colcon build --symlink-install
Starting >>> examples_rclcpp_async_client
Starting >>> examples_rclcpp_cbg_executor
Starting >>> examples_rclcpp_minimal_action_client
Starting >>> examples_rclcpp_minimal_action_server                                                                
--- stderr: examples_rclcpp_minimal_action_client                                                                             
CMake Error at CMakeLists.txt:14 (find_package):
  By not providing "Findexample_interfaces.cmake" in CMAKE_MODULE_PATH this
  project has asked CMake to find a package configuration file provided by
  "example_interfaces", but CMake did not find one.

  Could not find a package configuration file provided by
  "example_interfaces" with any of the following names:

    example_interfacesConfig.cmake
    example_interfaces-config.cmake

  Add the installation prefix of "example_interfaces" to CMAKE_PREFIX_PATH or
  set "example_interfaces_DIR" to a directory containing one of the above
  files.  If "example_interfaces" provides a separate development package or
  SDK, be sure it has been installed.


---
Failed   <<< examples_rclcpp_minimal_action_client [4.11s, exited with code 1]
Aborted  <<< examples_rclcpp_minimal_action_server [4.08s]
Aborted  <<< examples_rclcpp_async_client [4.18s]
Aborted  <<< examples_rclcpp_cbg_executor [8.65s]                            

Summary: 0 packages finished [9.83s]
  1 package failed: examples_rclcpp_minimal_action_client
  3 packages aborted: examples_rclcpp_async_client examples_rclcpp_cbg_executor examples_rclcpp_minimal_action_server
  3 packages had stderr output: examples_rclcpp_async_client examples_rclcpp_minimal_action_client examples_rclcpp_minimal_action_server
  18 packages not processed

RVIZ not displaying /scan frames Hi, RVIZ is listening to an ongoing /scan topic yet...no frames am I missing somethi

RVIZ not displaying /scan frames Hi, RVIZ is listening to an ongoing /scan topic yet...no frames am I missing somethin

did you solve this, there appear to have no more view_frames command in ros2

RPI 4 4Gb - build examples without crashing ? Hi, as I build the examples for humble, the memory and cpu are maxed out,

RPI 4 4Gb - build examples without crashing ? Hi, as I build the examples for humble, the memory and cpu are maxed out,

since it felt weird, to be sure, I been through the installation procedure I reinstalled ros-humble-ros-base package,

no idea why the exact same procedure does not work for others

have the same issue on a RPI4 4Gb also what is left to build if you remove the rclcpp folder ?

have the same issue on a RPI4 4Gb

I am actually following these very tutorials, hence the title of this post I finally managed to make it work, that git

I have the same issue with humble

same issue here https://answers.ros.org/question/327356/colcon-tutorial-on-dashing-does-not-build/

the tutorial does not say anything, there is no cd instruction, you just have to guess as mentioned, I tried putting th

how do you install it ?

here https://answers.ros.org/question/331633/ros2-colcon-build-fails-on-demo-pkg-docker/ it says I have to install a

thanks, I missed that foxy part but it does not work, also the dir structure looks nothing like the one in the example

thanks, I missed that foxy part but it does not work, also the dir structure looks nothing like the one in the example

I also tried building them in my home folder, does not help (why is my reply limited now ?) pi@ros-pi:~/ros2_ws$ git cl

I also tried building them in my home folder, does not help