pexison's profile - activity

Hello, I made the actionlib tutorial and I was trying to make my own a simple action handler, but there is an error when I use catkin_make:

/usr/include/boost/bind/mem_fn_template.hpp:184:7: note:   no known conversion for argument 1 from ‘ControlAction*’ to ‘ControlAction&’
make[2]: *** [control/CMakeFiles/control_server.dir/src/control_server.cpp.o] Error 1
make[1]: *** [control/CMakeFiles/control_server.dir/all] Error 2
make: *** [all] Error 2

The code of the action handler is:

#include <ros/ros.h>
#include <geometry_msgs/Twist.h>
#include <actionlib/server/simple_action_server.h>
#include <control/ControlAction.h>

class ControlAction {
  protected:
    ros::NodeHandle nh_;
    actionlib::SimpleActionServer<control::ControlAction> as_;
    std::string action_name_;

  public:
    ControlAction(std::string name):
    as_(nh_, name, boost::bind(&ControlAction::executeCB, this, _1), false),
    action_name_(name)
    {
      as_.start();
    }

   ~ControlAction(void)
   {
   }

   void executeCB(const control::ControlGoal &goal) {
   }
};

int main(int argc, char** argv) {
  ros::init(argc, argv, "control");
  ControlAction control(ros::this_node::getName());
  ros::spin();

  return 0;
}

And i am using the geometry_msgs/Twist as data type in the .action file. I am looking forward to use this callback to move the turtlebot, how can i use the cmd_vel here? (if this were a publisher node_pub.publisher(goal) will be the answer, but there must be another way)

The compilation problem was solved, but stills remaining the other part of the question related about how to use cmd_vel Thanks beforehand!

Hello,

I just want to calibrate the camera, but i get this message:

rosrun camera_calibration cameracalibrator.py --size 5x4 --square 0.0245 image:=/camera/image_raw camera:=/camera
('Waiting for service', '/camera/set_camera_info', '...')
Service not found

Already ran:

roscore
roslaunch openni_launch openni.launch

What generates this error?

Thanks beforehand!

Hello,

I designed a wiki page for the ROS wiki, how can I send it for revision or upload it?

Thanks beforehand!

Hello, I know that mjpeg_server is deprecated but for curiosity i was trying to use it whit a turtlebot, I ran the commands as it follows here Wiki for mjpeg and the webpage was loading and not showing the information of the kinect.

I ran:

$ roscore 
$ turtlebot_bringup minimal.launch
$ rosrun mjpeg_server mjpeg_server
$ rosrun rosbridge_server rosbridge_websocket

And then the page doesn't show something.

So I want to prove with the newest library form Robot Web Tools ros_web_video, and after installing it i don't know how to run it.

Any lights about this?

Thanks beforehand!

Hello im triying to execute

roslaunch turtlebot_bringup 3dsensor.launch

and after i obtain this answer from the terminal:

[INFO]Opened 'SensorV2' on bus 2:13 with serial number  '000000000000000000' 
              ...
[WARN]Camera calibration .../rgb_00000000000000.yaml file not found. 
[WARN]Using default parameters for RGB camera calibration.
[WARN]Camera calibration .../depth_00000000000000.yaml file not found.
[WARN]Using default parameters for IRcamera calibration.

After it is like an infinite loop and no information (of the camera) is showed. About the conection, it is via USB, kinect conected to the pc like also the turtlebot.

Yes, for the basic teleop tutorial of the Turtlebot it works!

what do you have to do in order to achieve, the navigation of a knowed map?.

I want to make a little server, that order the robot to move using a list of points. How can I say: use the foo map as a reference to the origin and send a pose/goal with the little server to the navigation stack.

Hi,

I am trying to generate a map of the second floor of my house. The problem is, that with the SLAM Mapping for Turtlebot, i can't put a mark or something that says "Don't go there or you will fall down". I am able to the map but I don't know how to avoid the stairways. There is any way to add the danger zone, or the don't go there zone to the map?

PS: I want to use the map to make an map based navigation test.

"This of course only works if you create the map with gmapping and use it in AMCL at a later stage, not directly with gmapping." So I am able to use the edited map with an client (ie. wrote on C++ or python) that sends goals to the navigation stack (and avoid the stairways)?

Hi!

I am able to do $ roscore and everything is fine (also launching launch files) but when I try: $ ssh user@machine roscore there is a problem, it says that

bash: roscore: command not found

I am hydro. What could be the reason of this?

Thanks beforehand!