tropic's profile - activity

Did you find a solution? The proper way should be to use an effort controller. Can you share your code, it would make it

It looks like you are running SLAM at the same time as navigation. This is not always a good idea since it can mess up t

I am using teb_local_planner and global_planner as well and one scenario I have been working on is replanning of the glo

I am using teb_local_planner and global_planner as well and one scenario I have been working on is replanning of the glo

To add to chfritz' answer below, TEB works quite well as local planner and you can optimize towards shortest time or sho

To add to chfritz' answer below, TEB works quite well as local planner and you can optimize towards shortest time or sho

To add to chfritz' answer below, TEB works quite well as local planner and you can optimize towards shortest time or sho

To add to chfritz' answer below, TEB works quite well as local planner and you can optimize towards shortest time or sho

Hi,

I have a navigation setup for a mobile robot. Local and global costmaps are running and navigation is working, however I would like to have the global planner replan when it sees obstacles in the local costmap. There are situations where it should come up with a new global plan because a pathway is blocked, but now the robot just stops. How can I make the global planner take local costmap obstacles into account if a pathway is blocked in order to generate a new global path?

The culprit in my case was the plugins defined in the local and global costmap yaml-files. After removing those plugins

Thank you for your suggestion. I tried that setup, and the specific settings do not work. I am not sure if those are the

Hi. Did you find a proper setup to have the global planner take the blocked path into consideration? I have tried very s

Omni-directional robot rotation very slow with libgazebo_ros_planar_move.so Hi, I have a fully functional URDF and Gaze

Make global plan that includes obstacles from local costmap Hi, I have a navigation setup for a mobile robot. Local and

Make global plan that includes obstacles from local costmap Hi, I have a navigation setup for a mobile robot. Local and

Did you ever get it to work? What computer and GPU were you running it on?

Did you ever get it to work?

Hi. The best I have found is to lower dt_refto allow it to plan better when close to obstacles e.g. moving through a doo

Did you solve your problem?

Hi. It is probably because you have a static transform between the map and odom, so it doesn't change: <node pkg="tf"

You should try out teb local planner http://wiki.ros.org/teb_local_planner. It has worked out quite well for me for >

Would like to ask as the previous comments, did you find a solution for this? :)

What dependencies were you missing? Can you elaborate on how you solved your issue?

How did you "fix" the error?

Mine did the same for a fresh Melodic installation. The thing is that if you try to use roscd on the newly instantiated

@scopus Did you ever solve this?

It also fails at launching with the following error [rospack] Error: package 'hukoyo' not found due to a change in the k

And maybe also add that people should run rosdep install for all the packages, else they might end up with many other er

Had the same issue. The tutorial should be updated to reflect that you need to download the package gym_construct and a

Did you ever solve this, I receive the same error on my Raspberry Pi 2 Model B running Ubuntu 14.04?

Hi

We use a non-holonomic wheeled platform with two SICK s300 laser scanners, and have recently tried to apply hector_slam instead of gmapping because gmapping uses almost 100% cpu and hector_slam uses close to 0%. We run Fuerte and Ubuntu 12.04 LTS. The software is running on one computer on the platform.

However, we have one problem with hector_slam and that is sporadic updates of the odometry.

We have made a launch file with the following

<?xml version="1.0"?>
<launch>
  <node pkg="hector_mapping" type="hector_mapping" name="hector_mapping" output="screen">
        <!-- Frame names -->
        <param name="map_frame" value="/map" />
        <param name="base_frame" value="/base_link" />
        <param name="odom_frame" value"/odom" />
        <param name="scan_topic" value="/scan_unified/scan"/>
  </node>
        <!-- Tf use -->
        <param name="pub_map_odom_transform" value="true"/>
</launch>

When we run the mapping the map updates and builds fine in rviz when moving linearly, but when we start to rotate the robot the scans and map do not align anymore. When looking at the odometry in rviz, it continuously goes between an error and OK. The error we receive is

For frame [odom]: No transform to fixed frame [/map]. TF error: [unable to lookup transform, cache is empty, when looking up transform from frame [/odom] to frame [/map]]

Anyone got an idea to why we receive this sporadic error of the odometry, it shifts between the error and OK every second, sometimes faster, sometimes slower?

I have a robot model with a camera in gazebo. The camera is observing the world but some objects I would like the camera to ignore so they are not captured in the image output. Is it possible to have a gazebo camera ignore certain objects e.g. perceive them as transparent or black e.g. by giving the objects a specific prefix in their name or something else?