tonyParker's profile - activity

What is an end-to-end middleware? I am reading ROS on DDS document. There is subsection 'An end-to-end Middleware'. Can

What is an end-to-end middleware? I am reading ROS on DDS document. There is subsection 'An end-to-end Middleware'. Can

What is an end-to-end middleware? I am reading ROS on DDS document. There is subsection 'An end-to-end Middleware'. Can

I upgraded to Ubuntu 18.04 and my Kinetic does not work anymore,

Unable to locate package ros-kinetic-desktop-full

When I see list of distribution here

Why (recommended) is written infront of Kinetic ?

Why not melodic ?

Hello,

In old version of rviz, there was an attribute 'target frame' in Global options, it sets the reference frame for camera view. For example, if my robot is moving, the camera view will also move along the robot. Will always show me the map from robot perspective. In latest version (1.12.16 (kinetic)) I could not find this. How can I set target frame ?

Why do we need to Install a node Executable Hello, I am newbie in ROS and CMake (catkin) thing. I have a cmake, in whi

I found the answer. The catkin was not able to produce -config.cmake file. The command is catkin_make --cmake-args

I did catkin_make_isolated, but it still gives following error No env.sh file generated at: '/home/luqman/Work/catkin_ws

How to build non-catkin package in catkin workspace. Hello, I have a non-catkin package in catkin workspace. I forgot

How to build non-catkin package in catkin workspace Hello, I have a non-catkin package in my catkin work space. I forg

Hello,

I want to use time sequence message filter. I wrote the code according to API defined here Link

This is my code

void callback(const std_msgs::StringConstPtr& info) { ROS_INFO("Call is called "); }

int main(int argc, char **argv) { ros::init(argc, argv, "test");

ros::NodeHandle n;

message_filters::Subscriber<std_msgs::string> sub(n, "my_topic", 1);

message_filters::TimeSequencer<std_msgs::string> seq(sub, ros::Duration(0.1), ros::Duration(0.01), 10);

seq.registerCallback(callback);

ros::spin();

return 0; }

It gives this error In file included from /opt/ros/jade/include/message_filters/subscriber.h:43:0, from /lhome/luqman/Work/radar_ros_ws/src/bbox_rviz/src/test_doc.cpp:2: /opt/ros/jade/include/message_filters/simple_filter.h: In instantiation of ‘message_filters::Connection message_filters::SimpleFilter<m>::registerCallback(void ()(P)) [with P = const boost::shared_ptr<const std_msgs::string_<std::allocator<void=""> > >&; M = std_msgs::String_<std::allocator<void> >]’: /lhome/luqman/Work/radar_ros_ws/src/bbox_rviz/src/test_doc.cpp:21:32: required from here /opt/ros/jade/include/message_filters/simple_filter.h:96:99: error: no matching function for call to ‘message_filters::Signal1<std_msgs::string_<std::allocator<void> > >::addCallback(void (&)(const boost::shared_ptr<const std_msgs::string_<std::allocator<void=""> > >&))’ return Connection(boost::bind(&Signal::removeCallback, &signal_, signal_.addCallback(callback))); ^ /opt/ros/jade/include/message_filters/simple_filter.h:96:99: note: candidate is: In file included from /opt/ros/jade/include/message_filters/simple_filter.h:41:0, from /opt/ros/jade/include/message_filters/subscriber.h:43, from /lhome/luqman/Work/radar_ros_ws/src/bbox_rviz/src/test_doc.cpp:2: /opt/ros/jade/include/message_filters/signal1.h:91:22: note: template<class p=""> message_filters::Signal1<m>::CallbackHelper1Ptr message_filters::Signal1<m>::addCallback(const boost::function<void(p)&gt;&amp;) [with="" p="P;" m="std_msgs::String_&lt;std::allocator&lt;void"> >] CallbackHelper1Ptr addCallback(const boost::function<void(p)&gt;&amp; callback)<="" p="">

Hello,

I am sorry for being naive. I have GPS sensor information from a moving car. I have URDF model of a robot with four wheels. All joints are fixed (wheel to base_link). I want to move the robot in rviz according to GPS data. I am able to broadcast tf trasnform following this :Link

I have gone through these tutorials but all using joint_state_publisher. Any help would be appreciated.

Hello,

Default value of Occupancy Threshold is 0.5. In my code, I changed it to 0.2 by using setOccupancyThres(0.2).

It works fine in Octree e.g. all nodes having probability greater 0.2 considered as occupied.

But in RVIZ, the nodes with probability less than 0.5 does not shown up.

I think, I have to changed value somewhere in octomap_rviz plugins ?

How to save Point Cloud File from rosbag file Hello, I want to save point cloud in .pcd format from rosbag file. I kno

Why ROS_Kinetic is recommended Distribution ? I upgraded to Ubuntu 18.04 and my Kinetic does not work anymore, Unab

Why ROS_Kinetic is recommended Distribution ? I upgraded to Ubuntu 18.04 and my Kinetic does not work anymore, Unab

how to change reference frame for camera view Hello, In old version of rviz, there was an attribute 'target frame' in

What are the meaning of the -b and -p flags ?

I am following this tutorial:

http://wiki.ros.org/lse_roomba_toolbo...

When I enter this command, rosrun stage stageros roomba_isr_floor0.world

it gives this error

[rosrun] Couldn't find executable named stageros below /opt/ros/hydro/share/stage

I have red Gazebo is a standalone application. Does Hydro support Gazebo 3.0 ?

How to access parent node in Octomap library Hello, I have a leaf node pointer. I want to access the successive parent