vkee's profile - activity

I'm trying to debug some segfaults and I was wondering if anyone managed to get ddd / gdb ( https://www.gnu.org/software/ddd/ ) working with nodes that were launched with roslaunch (and if so, how to do so).

Thanks!

Hi,

Has anyone been able to get STL meshes to properly display with the specified color and alpha values when generating the messages in roscpp and visualizing them in RVIZ?

For some reason, I can get the meshes to display but no matter how I change the color and alpha values, it stays the same solid gray color and opacity (I set mesh_use_embedded materials to false).

Thanks!

You can use something like this function (http://docs.pointclouds.org/trunk/classpcl_1_1_point_cloud.html#af2065290a879e

You should be able to use this function (http://docs.pointclouds.org/trunk/group__io.html#ga09bdff6c474655ebbefa8a97de66

Hi,

I've been trying to install MoveIt! on ROS Indigo in Ubuntu 14.04 and have been running into issues.

I first tried to install it using the binary installation instructions: sudo apt-get install ros-indigo-moveit-ros However, it says:

*Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
 ros-indigo-moveit-full : Depends: ros-indigo-moveit-commander but it is not going to be installed
                          Depends: ros-indigo-moveit-ros but it is not going to be installed
                          Depends: ros-indigo-moveit-setup-assistant but it is not going to be installed*

I have also tried installing it from source. It seemed to work after a few times but when I try to run a tutorial program, it says "ImportError: No module named moveit_commander"

I tried reinstalling ROS multiple times to no avail.

I've been looking around online but it seems like other people are having similar issues. Has any been able to successfully install MoveIt?

Thanks

How did you write your callback function? I followed that tutorial but for some reason it is just segfaults when the fun

RVIZ Marker STL Mesh Color and Transparency Issues Hi, Has anyone been able to get STL meshes to properly display with

@ilyess, I would go with LOAM (it got 2nd on the KITTI odometry / SLAM evaluation). If you use the velo_64 branch (http

I don't think that would necessarily create a map of the entire rosbag's raw data? See my answer below.

What would be the best way to add a topic to an existing rosbag?

Play the bag and publish the topic while doing a rosbag record -a?

Thanks!

What are you planning to do with it? There are separate branches for different Velodyne models.

He removed it because he started a company with it (http://www.kaarta.com/).

Best way to add a topic to an existing rosbag? What would be the best way to add a topic to an existing rosbag? Play th

Best way to add a topic to a rosbag? What would be the best way to add a topic to a rosbag? Play the bag and publish th

Best way to add a topic to a rosbag? What would be the best way to add a topic to a rosbag? Play the bag and publish th

Is the camera working? I would try and contact the developer on the link you posted to see if you are missing anything.

You should be able to do "rostopic echo /tf" and see those frames if that AprilTag is entered in the launch file. I woul

You should be able to do "rostopic echo /tf" and see those frames if that AprilTag is entered. I would recommend trying

No, it is just a label. You can set them to anything - they just need to be unique. The detected AprilTags will appear w

The only time based operations have to deal with tf lookups, do you think that might cause problems?

I have several bags recorded of navigating through an environment, with pauses between each bag from configuring the system. I would like to playback the entire sequence as one smooth continuous sequence. I merged the bags using https://gist.github.com/NikolausDemme... but there are large time gaps with no ROS messages in the merged bag as seen in the rqt_bag screenshot below.

Is there any easy way to remove these timegaps?

Thanks!

They just need to be unique. If I remember correctly (it was awhile since I worked with AprilTags), they will correspond

You need to put frame_ids for your tags, like the tag with id 1.