How to get markers pose in a file?
Hi, I am using different AR tags and need to know how I can save their poses into a text file so I can use their poses in a MATLAB code. When I use "echo", it gives me a long list with different...
View Articlewaiting for the map problem
I follow the tutorial " slam_gmapping Tutorials MappingFromLoggedData " , and when I enter this command " rosrun map_server map saver " , I have this message " waiting for the map " and after there are...
View ArticleStoring the data inside an array as rosbag
Hi, Is there a way I can store data in my array (inside a c++ program) as rosbag? Just like I can store it as txt or csv file. I know we can store data being published over a ros topic as rosbag but I...
View Articledependency issue Hydro Raspberry Pi
I am following the Wiki instructions on a NOOB install of hydro on Raspberry Pi Exception caught during install: Error processing 'ros_comm/rosbag' : [ros_comm/rosbag] Checkout of...
View Articlerosbag recording resolution / create cyclic snapshots
Hi guys, as we have a huge amount of data to record, we would like to be able to reduce the resolution of the data being recorded. From looking at rosbag I don't think its possible yet, right? As...
View ArticleTools for rosbag analysis - Others that are used?
What tools have people developed and use for rosbag analysis? I know of rqt_bag (which is an absolutely awesome tool), which allows you to browse the topics in a concise timeline, and using that in...
View ArticleCreating a bag file out of a image sequence
Let's say I have a series of images and want to create a bag file out of them to use as input for the camera calibration. Is it even necessary to create the bag for the calibration or is there another...
View ArticleCan't read bagfile containing custom messages
I have a bag file with video and imu data defined with custom messages that I want to read (especially topics /capture and /imu_raw). I know from documentation what the structure of the custom messages...
View ArticleWhat's the right way to call rosbag in a launch file?
Hi there, Since the Python API for rosbag is not really documented, I've decided to just start a couple bags from a launch file. I want to record some topics from my robot, and some from my desktop...
View ArticleRecord tf_static with rosbag
Hi all, I'm trying to record all my topics into a bag, running `rosbag record -a`. However, rosbag doesn't record the `/tf_static` topic. How can I arrange this? Thanks
View ArticleHow do I best save a transform to a file?
Since it seems the rosbag C++ API doesn't work very well with the tf library, and I cannot find a simple way of saving ROS datatypes to files, I don't know how to best save a transform that I have...
View ArticleSynchronizetion of Gazebo-log and Rosbag replay
Hello. I am interesting in recording and replaying simulated scenario in gazebo. I am looking to record both the simulated environment and the movement of my robot inside of it, and also my robot's...
View ArticleTrouble Including rosbag
Hello, I am trying to follow this tutorial: http://wiki.ros.org/rosbag/Code%20API#cpp_api , but am running into errors with the inclusion of rosbag. When I try to run the example code, I get a jillion...
View Articleqt creator convert
hi, i record with rosbag a viedeo. I want to viaualize the video in a gui, with a qt creator, but rosbag records only in the Format Mono_8, buti need a rgb format to play the video. How can i decode...
View ArticleHow to launch rxbag or rqt_bag with the --clock option
Hello I am launching the playback of a bag file using rosbag play. Because I want to emulate the clock at the time of recording I use the --clock option along with the use_sim_time=true parameter...
View Articlerecord rosrun tf tf_echo /map /base_link
I run tf tf_echo /map /base_link and compute exact data needed: ... At time 1407419581.729 - Translation: [-8.999, -22.000, 0.000] - Rotation: in Quaternion [-0.000, 0.000, 0.850. 0.526] in RPY [0.000....
View Articlecreated tf listener, how to rosbag?
I run `tf tf_echo /Pioneer3AT/map /Pioneer3AT/base_link` and compute exact data needed (so far so good): ... At time 1407419581.729 - Translation: [-8.999, -22.000, 0.000] - Rotation: in Quaternion...
View ArticleReplay rosbags recorded with --split option
Hi, I have recorded number of rosbags using --split option, say "file_0.bag", "file_1.bag", "file_2.bag" and so on to build a map. My question is: how to play them back one after the other. Using `$...
View Articlecan "rosbag filter" create a new bag file with multiple topics within it?
Hello, I have a bagfile with a lot of topics in it. For some reason I would like to filter out 4 topics of that bagfile into a new bagfile: rosbag filter old_bag.bag new_bag.bag...
View Article[rosbag] Synchronisation between camera_info and image
Hello guys, Quick question: My setup is Kinect => Depth Image => MoveIt =>Octomap I want to record what's happening in the real world and to be able to replay it later on, so that the same...
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