JaFeKl's profile - activity

Accessing node namespace in code assigned by roslaunch Hello everyone, I have the following problem. I am running a nod

Came across the same problem: Adding "${workspaceFolder}/../../devel/include" to the include path in c_cpp_properties.j

Do you have any example how to do this with placeholder data as you mentioned? In my case I would like to have a callbac

I just ran into the exact same issues as described in the question above, I made shure that all ros-control related pack

I ran into the exact same problem today, were you able to fix it already?

Hello everyone,

I have the following issue that ros::Time::now()` always returns zero using the following minimum example.

#include <ros/ros.h>

int main(int argc, char **argv)
{
      ros::init(argc, argv, "force_test_trajectory_pub");     // create ROS node
      while(ros::ok())  {
            beginTime = ros::Time::now();
            ROS_INFO("Starting time %f", beginTime.toSec());
      }
}

The following things are running propperly:

• I first start roscore as usual
• Then I set the parameter /use_sim_time to true
• Then I run gazebo using rosrun gazebo_ros gazebo to get a clock published on /clock
• Then I run the example above but which only outputs 0 even though /clock is constantly publishing

When I pause Gazebo, the while loop stops as well, which means synchronization is working in some way.

Do you have any suggestion how to fix this problem?

Issue with ros::Time when using /use_sim_time Hello everyone, I have the following issue that ros::Time::now()` always

Issue with ros::Time when using /use_sim_time Hello everyone, I have the following issue that ros::Time::now()` always

Dear ROS community,

I have the following problem:

I'm trying to simulate a robotic leg using ROS kinetic and Gazebo.

In order to get information about the current frame of each link I'm using the robot_state_publisher. He's a subscriber of the /joint_states topic and also receives information from the parameter robot_description which is loaded as an parameter using the xacro file, which describes the leg construction with all it's links and joints. He then publishes to the topic /tf

When I use the rqt_tf_tree to check the tf_tree I have 3 unconnected tree structures as a result, two Joints are missing. I first thought the xacro files would be incompleted, but I checked the robot_description by using $ rosparam get /robot_description

E.g.

<joint name="joint_B1" type=" continuous">
  <origin rpy="0 0.512690467 0" xyz="-0.05 -0.005 0"/>
  <parent link="upper_leg"/>
  <child link="connector_2"/>
  <axis xyz="0 1 0"/>
  <dynamics friction="0"/>
  <limit effort="10" velocity="10"/>
</joint>

is one of the missing connections.

Do you guys have any suggestion where my problem could be?

yes the node is starting to republish both messages A and B, however, he should stop republishing A when B arrives

Issue when periodically republishing Joint Trajectory messages Hello ROS community, I am trying the following thing: I

Thanks for your response, I am trying to achieve the following: see this picture the problem appears when the planner_no

Issue when periodically republishing Joint Trajectory messages Hello ROS community, I am trying the following thing: I

Odometry estimation ONLY based on IMU sensor Hello guys, I'm trying to run some simulations in gazebo where I want to s

The missing connections were caused by missing transmission elements in the xacro file. I thought only transmission elme

Have you used ´catkin_make´ afterwards?

I was thinking about the same a few days ago, i tried it as well and hoped it would work out, maybe we get an answer for

robot_state_publisher posting wrong tf tree (missing connections) Dear ROS community, I have the following problem: I'