FranciscoD's profile - activity

Looks like some of the links on the wiki are obsolete. For instance:

http://wiki.ros.org/imu_drivers links to http://docs.ros.org/api/sensor_msgs/html/msg/Imu.html but should link to http://docs.ros.org/fuerte/api/sensor_msgs/html/msg/Imu.html instead.

It appears to be the case with all the API links on that page at least:

http://docs.ros.org/api/std_msgs/html/msg/Bool.html is also a 404.

I haven't checked the other wiki pages yet.

The gmapping system misses glass surfaces since it makes use of laser data. Unfortunately, we have an environment that has quite a few glass walls/doors. Has anyone run into this issue? If yes, how do you folks suggest we handle it? I can always modify the map manually in an image editor. Is there a better way?

I'm trying to install the pr2simulator stack which requires http://ros.org/wiki/pr2_mechanism?distro=groovy (pr2mechanism), which in turn requires http://ros.org/wiki/pr2_mechanism_msgs (pr2_mechanism_msgs). This is what I tried:

cd ros_ws
rosws set pr2_mechanism_msgs --hg https://kforge.ros.org/pr2mechanism/hg
rosws update pr2_mechanism_msgs

This doesn't seem to work. The kforge.ros.org site looks down. I found the pr2simulator stack on github, but pr2_mechanism_msgs isn't hosted there. Can someone please tell me how to get this working? Is there an alternate hosting location?

I tried an hg clone command too and it doesn't work. http://isup.me/kforge.ros.org says the site is down.

I'm on Fedora 18: I must install these from source.

I'm trying to extract messages of the "/camera/depth_registered/image_rect" topic from my bag:

[ankur@eng050194  20130405]$ rosbag info 20130405_navtest_0.bag
path:        20130405_navtest_0.bag
version:     2.0
duration:    58.8s
start:       Apr 05 2013 15:32:07.42 (1365136327.42)
end:         Apr 05 2013 15:33:06.25 (1365136386.25)
size:        3.3 GB
messages:    17410
compression: none [3286/3286 chunks]
types:       sensor_msgs/Image      [060021388200f6f0f447d0fcd9c64743]
             sensor_msgs/Imu        [6a62c6daae103f4ff57a132d6f95cec2]
             sensor_msgs/JointState [3066dcd76a6cfaef579bd0f34173e9fd]
             sensor_msgs/LaserScan  [90c7ef2dc6895d81024acba2ac42f369]
topics:      /base_scan                            1178 msgs    : sensor_msgs/LaserScan
             /camera/depth_registered/image_rect   1626 msgs    : sensor_msgs/Image
             /camera/rgb/image_rect_color          1658 msgs    : sensor_msgs/Image
             /joint_states                         5883 msgs    : sensor_msgs/JointState
             /tilt_scan                            1182 msgs    : sensor_msgs/LaserScan
             /torso_lift_imu/data                  5883 msgs    : sensor_msgs/Imu
[ankur@eng050194  20130405]$

I've written up a launch file as described in the tutorial http://www.ros.org/wiki/rosbag/Tutorials/Exporting%20image%20and%20video%20data (here):

<launch>
  <node pkg="rosbag" type="play" name="rosbag" args="-d 2 /home/ankur/dr_jack/20130405/20130405_navtest_0.bag"/>
  <node name="extract" pkg="image_view" type="extract_images" respawn="false" output="screen" cwd="ROS_HOME">
    <remap from="image" to="/camera/depth_registered/image_rect"/>
  </node>
</launch>

However, when I run the launch file, it errors out:

[ankur@eng050194  20130405]$ roslaunch exportImageData.launch
... logging to /home/ankur/.ros/log/c113647a-9feb-11e2-b9c4-24be051362b4/roslaunch-eng050194.eng.uts.edu.au-32061.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://eng050194.eng.uts.edu.au:60100/

SUMMARY
========

PARAMETERS
 * /rosdistro
 * /rosversion

NODES
  /
    extract (image_view/extract_images)
    rosbag (rosbag/play)

ROS_MASTER_URI=http://localhost:11311

core service [/rosout] found
process[rosbag-1]: started with pid [32095]
process[extract-2]: started with pid [32096]
[ INFO] [1365387639.215633458]: Initialized sec per frame to 0.100000
[ERROR] [1365387644.328011223]: Unable to convert 32FC1 image to bgr8
[ WARN] [1365387644.328120105]: Couldn't save image, no data!
[ERROR] [1365387644.329480639]: Unable to convert 32FC1 image to bgr8
[ERROR] [1365387644.393881439]: Unable to convert 32FC1 image to bgr8
[ERROR] [1365387644.423329040]: Unable to convert 32FC1 image to bgr8
[ERROR] [1365387644.454279657]: Unable to convert 32FC1 image to bgr8
[ WARN] [1365387644.454386746]: Couldn't save image, no data!
[ERROR] [1365387644.487755386]: Unable to convert 32FC1 image to bgr8

Would someone know what I'm doing wrong? I extracted the images of the "/camera/rgb/image_rect_color" topic just fine using this approach.

Could be related: I can't view these images using rqt_bag either. Am I missing some package that provides this capability?

I've been building groovy using the instructions from the wiki. My processor is an i5, 2 cores, 4 threads. Building PCL is a huge CPU hog and my system takes a few hours when all 4 threads are being almost fully used throughout. The problem is, my laptop tends to overheat and shut down when it gets to critical temp because of all this work (yes, the room temperature isn't helping). I was wondering if someone could tell me where catkin picks the "-jX" value from? It uses -j4 at the moment. I was wondering if reducing it to a -j3 or a -j2 might help keep the temperature down. It might take longer, but I can leave it overnight knowing that it isn't going to shut down after overheating.

During normal usage, my system is at about 45*c, so building PCL does take quite some work.

I'm trying to build Fuerte on a Fedora 18 x86_64 system as detailed http://www.ros.org/wiki/fuerte/Installation/Fedora#preview (here). In the first make step, it errors out with:

$ make -j8
.....
[ 95%] Built target draw_square
[ 95%] Built target mimic
[ 95%] Built target turtle_teleop_key
[ 96%] Built target turtlesim_node
[ 96%] Built target actionlib
[ 96%] [ 97%] Built target drop
Built target rxtools
[ 97%] [ 97%] Built target relay
Built target mux
[ 97%] Built target switch_mux
[ 97%] Built target throttle
[ 97%] [ 97%] Building CXX object ros_comm/tools/rosbag/CMakeFiles/rosbag.dir/src/recorder.cpp.o
Built target python_rxtools
[ 98%] Built target rxconsole
[ 98%] Built target rxloggerlevel
/home/ankur/ros-underlay/ros_comm/tools/rosbag/src/recorder.cpp: In member function ‘void rosbag::Recorder::doRecord()’:
/home/ankur/ros-underlay/ros_comm/tools/rosbag/src/recorder.cpp:439:42: error: expected unqualified-id before numeric constant
make[2]: *** [ros_comm/tools/rosbag/CMakeFiles/rosbag.dir/src/recorder.cpp.o] Error 1
make[1]: *** [ros_comm/tools/rosbag/CMakeFiles/rosbag.dir/all] Error 2
make: *** [all] Error 2
[ankur@dhcppc1  build]$

Would anyone know how to correct/workaround this please?