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- ROS Answers archive
This is the static archive of questions from ROS Answers archive Answers
- ROS_INFO vs ROS_INFO_STREAM - ROS Answers archive
Is there some clear guidance when to use which? I have read somewhere that ROS INFO is for C, whereas ROS INFO_STREAM is for C++ but I am sure there must be more to it Thx for you explanations Asked by ticotico on 2021-08-30 04:53:14 UTC
- subscribe image slow on rospy with python3 and melodic - ROS Answers . . .
Note that I had to build ros from source setting python executable to python3 in order to use python3 packages with ros melodic
- TF_OLD_DATA ignoring data from the past for frame base . . . - ROS Answers
By doing an echo of my tf topic I am able to see the timestamps of the different transforms, and I realized that those timestamps are given in seconds from 1970, whereas the message I get from Rviz about the base_link frame gives the time in seconds since the moment I launched the simulation:
- Ros 2 navigation error installation (Rolling distro)
Hi @ ravijoshi, I use ubuntu 22 (Jammy jellyfish) with ros-rolling Thank you for your suggestion and help
- Cannot locate rosdep definition - ROS Answers archive
There is no ROS package called gazebo_plugin, nor is there an Ubuntu package (in your case) that is called gazebo_plugin, so rosdep cannot determine which package should be installed to fulfil the dependency It's likely that this is a typo: there is a ROS package called gazebo_plugins (note the s at the end there)
- (realsense2_camera) nodelet manager has died - ROS Answers archive
The realsense2_camera package works smoothly It is probably due to incomplete installation or incorrect dependencies; For example, the ddynamic_reconfigure package must be installed if you compile it from the source On the other hand, I prefer quick installation via apt Next, check if the realsense-viewer command works fine in the terminal You should be able to see the images from your
- Undefined reference to tf2::fromMsg - ROS Answers archive
However your problem appears that you are trying to convert a Transform into a TransformStamped which isn't going to work because they are not holding the same data You won't find conversions like that You need to not remove the transform from your call like: tf2::convert (geo_tf_stamped, tf2_stamped); to have matching datatypes Asked by on 2018-04-23 12:33:04 UTC
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