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Avt Manta GigE camera with prosilica_driver

Hi all, I'm using the **prosilica_driver node** to access images from my camera (AVT Manta G235B) in **ROS indigo** running under **Ubuntu 14.04**. The problem I'm experiencing is twofold - First, a...

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rosbag exits recording abruptly after maximum file size is reached

I'm running `octomap_mapping` on my robot, and also want to record data for post processing. The data mostly includes `/tf` messages and `/pointCloud2` data. I running my code on a real robot, so I do...

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Where to find a rosbag.

Hello everyone, I know I've seen that question somewhere but I can't seem to find it again. I would like to know if there is somewhere I can download rosbags. Like a database of rosbag available for...

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Compressed camera images from rosbag to matlab

I have a bag file containing lots of sensor messages, including compressed camera images. I would like to use this stream of camera images in MATLAB. I know of two possible approaches: either by...

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Error with octomap_server: "process has died, exit code -6"

I am trying to use `octomap_server` (`octomap_mapping.launch` file) for building a 3D map using point cloud data from velodyne. So i drive my robot around, record all sensor data for `octomap_server`...

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extracting depth image from .bag file

I want to extract depth image from .bag file just like [the tutorial](http://answers.ros.org/question/9652/extracting-images-from-rosbag/). But when I run `$ roslaunch export.launch` , the error...

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Conversion of ROS Bag to CSV Extremely Slow

Hi All, I have gathered data using `rosbag`, but listing topics from it and extracting data from it is *extremely* slow. It takes over an hour to process a `.bag` file that is 180 MB in size and...

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Recording tf to rosbag and playing back at reduced speed

This worked in Hydro but appears to be broken in Indigo perhaps. I'm recording a robot experiment using rosbag record /tf /tf_static /camera/depth_registered/points /robot/joint_states -O trial1.bag...

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Can not write an instance of `rosbag::MessageInstance` to a `rosbag::Stream`

Consider the following peace of code: for (rosbag::View::iterator m=view.begin(); m!=view.end(); m++){ m->write(stream); } Where `stream` is a variable of type `rosbag::Stream`. When I run the code...

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How to get number of messages in one topic from rosbag.py

Hello! I was wondering whether with the Python module rosbag there is any chance to get the number of recorded messages in one topic. The Bag.read_messages method returns a generator and of course I...

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ROS + Gazebo Recording and playing back robot trajectory

I have a setup with a differential robot rolling in a simple environment. The robot is controlled by a ROS node and is simulated in Gazebo. I am looking for a way to record the actual trajectory of the...

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rosbag topics out of order

Indigo, Linux Mint 17 I'm using the commandline rosbag utility to record various topics. I have two topics /topic1 and /topic2. Topic1 is published before Topic2, like so: if state==new_state:...

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How to publish topic with old rosbag time?

I first set /use_sim_time to true. Then play the ros bag file. My code subscribes the point cloud in the bag. After some processing, my code publishes the processed point cloud. However, the rviz can...

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How to publish topic with old rosbag time?

I first set /use_sim_time to true. Then play the ros bag file. My code subscribe the point cloud in the bag. After some processing, my code publish the processed point cloud. However, the rviz can only...

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How to extract data from *.bag?

How to extract data from *.bag? I recorded my odomerty and laser data using rosbag. I want to extract (specific) data stream(text format) from recorded bagfiles. (time, step, odometry[x,y,...], laser...

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Problems when using rosbag with ethzasl_icp_mapper.

Dear all, I have some problems when using `ethzasl_icp_mapper` with playing rosbag file. I followed this [tutorial](http://wiki.ros.org/openni_launch/Tutorials/BagRecordingPlayback) to record some raw...

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Tools 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...

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Bagfile (containing depth and RGB data) to picture frames

When I convert a bagfile (containing depth and RGB data) to picture frames, I get different number of picture frames each time I launch the code given in the tutorial given below and the subsequent...

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error while recording bag with ccny_rgbd 3D mapping

HI everyone i am trying to record my bag with ccny_rgbd packages. for launching the ccny camera driver i used the command: roslaunch ccny_openni_launch openni.launch and for recording the bag: rosbag...

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How to extract depth data from rosbags(contains depth and RGB data) as...

I converted the RGB data with the help of http://wiki.ros.org/rosbag/Tutorials/Exporting%20image%20and%20video%20data tutorial. But I am not sure how to do it for converting a raw_depth to depth...

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