keshav_sarraf's profile - activity

Hey! Did you figure anything out?

-update rate -> frequency in (Hz) of publishing by the plugin
-leftJoint -> specify the name of the joint connecting left wheel of your differential drive robot to the chassis
-wheelSeparation -> distance between the 2 wheels in a diff drive robot -commandTopic ->name of the
-topic on which you can publish the linear and angular velocity of the robot
-odometryTopic -> Topic on which you can subscribe to the
-odometry data. robotNameSpace -> (generally the name of the robot... i am not sure)

I found a way around but it is not an elegant solution. 1> Create a rosbuild package (at this time hark_mgs do not support catkin package) that would subscribe to hark_msgs and publish any other standard message. 2> Subscribe the newly created topic consisting of std_msgs.

I created a rosbuild package to subscribe hark_msgs and it worked.

I installed Hark from the following link using apt-get : http://winnie.kuis.kyoto-u.ac.jp/HARK/wiki.cgi?page=HARK-ROS+Installation+Instructions But let me try with the package you mentioned

let me try converting it to catkin_package.

i am using ROS Hydro in ubuntu 12.04. and I want to create a subscriber of hark_msgs. whenever I run a simple publisher designed in HARK from batchflow, I am able to view the messages in the terminal (using rostopic echo). When I am trying to create a subscriber ,I get this message:

Could not find a configuration file for package hark_msgs.

Set hark_msgs_DIR to the directory containing a CMake configuration file
for hark_msgs.  The file will have one of the following names:

hark_msgsConfig.cmake
hark_msgs-config.cmake

(whenever I include hark_msgs in the dependencies, I get the above error.)

I found the folder where hark_msg related (.msg) files are but .cmake files are no where to be seen. Any help would be appreciated.

I am really sorry. I posted the question twice by mistake. I'll delete this instance.

Hello guys! I am trying to localize a sound source and use that information in matlab. I have integrated ROS with matlab (R2012b) and ROS with Hark. I am also able to visualize the localisation information in HARK. But I need the localisation data in Matlab (to control a robot in Gazebo). The problem I am facing is that the source localization data in hark is outputted as a data type ObjectRef. Can anyone help me how to convert this data structure to simple data types like vector, Int or float that can be published as std_msgs or any other technique by which I can subscribe localization data in Matlab. Information about the data type of source can be found at pg. no. 32 of hark-documentation (version2) . Any solution is welcome by which I can get the localization information in Matlab.

System Specs: Ros Hydro, Ubuntu 12.04 64 bit, Matlab R2012b, Hark version 2

Hello guys! I am trying to localize a sound source and use that information in matlab. I have integrated ROS with matlab (R2012b) and ROS with Hark. I am also able to visualize the localisation information in HARK. But I need the localisation data in Matlab (to control a robot in Gazebo). The problem I am facing is that the source localization data in hark is outputted as a data type ObjectRef. Can anyone help me how to convert this data structure to simple data types like vector, Int or float that can be published as std_msgs or any other technique by which I can subscribe localization data in Matlab. Information about the data type of source can be found at pg. no. 32 of hark-documentation (version2) . Any solution is welcome by which I can get the localization information in Matlab.

System Specs: Ros Hydro, Ubuntu 12.04 64 bit, Matlab R2012b, Hark version 2

Hello Everyone!! I am new to ROS and Gazebo. For my project I have to run few signal processing algorithms in MATLAB and see the results in Gazebo. Running all 3 (ROS, Gazebo and Matlab) on the same system leads to system overload. I have access to 2 machines. Is there any way I can bifurcate the load across the 2 machines. I am using Matlab 2012b ROS Hydro and Gazebo 1.9

Hello Everyone!! I am new to ROS and Gazebo. For my project I have to run few signal processing algorithms in MATLAB and see the results in Gazebo. Running all 3 (ROS, Gazebo and Matlab) on the same system leads to system overload. I have access to 2 machines. Is there any way I can bifurcate the load across the 2 machines. I am using Matlab 2012b ROS Hydro and Gazebo 1.9

Whenever I turn on the visualization of the sonar sensor in sdf, I find the observed rays in gazebo to be kind of odd. They cover only half of the horizontal range and sometimes are irregular (I don't have enough points to upload the picture). But in Rviz, a neat cone is observed. Is there some way to correct this? If not a complete cone, I would really appreciate even if I get a complete and uniform horizontal arc.

Hello guys! I am a ros and cpp beginner and I have read the simple ros publisher tutorial given in the wiki. I want to create a simple publisher that can publish time every second. how can I modify the code given in the tutorial to do the same.