DIDI's profile - activity

Hi there. I have installing problems.

"sudo apt-get install ros-groovy-actionlib" works fine, but

"sudo apt-get install ros-groovy-joystick_drivers" don't.

I just get:

Reading package lists... Done

Building dependency tree
Reading state information... Done

E: Unable to locate package ros-groovy-joystick_drivers

Any Idea why? I am working with Ubuntu 12.04.

Thanks.

Hi there, I try to run the navigation stack via gazebo for the erratic robot. I start it e.g. with roslaunch erratic_navigation_apps demo_2dnav_slam.launch, but when I start rosrun rviz rviz there are no transforms. There are no frames. If I add the robot to rviz there are no transforms at all. Any ideas?

I have to start first the Gazebo simulator and set up a robot model like this:

roslaunch gazebo_worlds empty_world.launch
roslaunch erratic_description erratic_mobile_base.launch

And then:

roslaunch erratic_description erratic_mobile_base.launch

This works, for whatever the reason: roslaunch erratic_navigation_apps demo_2dnav_slam.launch

I have a problem with the navigation stack. I use Fuerte and tried to run a simulation with the erratic robot:

roslaunch erratic_navigation move_base_local.launch

….

NODES
  /move_base_node/local_costmap/
    voxel_grid_throttle (topic_tools/throttle)
  /
    move_base_node (move_base/move_base)

auto-starting new master
process[master]: started with pid [25088]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 27570100-fe93-11e2-bc47-002622350f36
process[rosout-1]: started with pid [25101]
started core service [/rosout]
process[move_base_node/local_costmap/voxel_grid_throttle-2]: started with pid [25113]
process[move_base_node-3]: started with pid [25127]
[ INFO] [1375791876.551792597]: Subscribed to Topics: base_scan base_scan_marking
[ WARN] [1375791881.653678739]: Waiting on transform from /base_footprint to /odom to become available before running costmap, tf error:

and with: roslaunch erratic_navigation_apps erratic_2dnav.launch ...

NODES
  /move_base_node/local_costmap/
    voxel_grid_throttle (topic_tools/throttle)
  /
    amcl (amcl/amcl)
    move_base_node (move_base/move_base)
    voxel_visualizer (costmap_2d/costmap_2d_markers)

auto-starting new master
process[master]: started with pid [25999]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 6caa4438-fe93-11e2-9666-002622350f36
process[rosout-1]: started with pid [26012]
started core service [/rosout]
process[amcl-2]: started with pid [26024]
process[move_base_node/local_costmap/voxel_grid_throttle-3]: started with pid [26081]
[ INFO] [1375791992.682028086]: Requesting the map...
[ WARN] [1375791992.683369458]: Request for map failed; trying again...
process[move_base_node-4]: started with pid [26130]
process[voxel_visualizer-5]: started with pid [26145]
[ INFO] [1375791993.099960562]: Subscribed to Topics: base_scan base_scan_marking
[ INFO] [1375791993.122128742]: Requesting the map...

[ INFO] [1375791993.124315334]: Still waiting on map...

[ WARN] [1375791993.184716658]: Request for map failed; trying again...

I guess they are connected, but I don't know where the problem is. Just installed it and tried to launch it and make the first steps. Any ideas?

I have a similar problem. Could you solve it?

I thought I can run CanDriveHarmonica to see the messages sent by the node to the Elmo Motion Control Harmonica. The aim is to reconstruct a realy old robot for ROS and I wanted the information which CAN messages are needed to be sent to Harmonica in order to initialise and steer it.

I tried to run it, but there is no executable file. rosmake does not do anything cause of the file ROS_NOBUILD in different dependencies. And even if I deleate this one, in the CMakeLists.txt file is a line like: rosbuild_add_executable(CanDriveHarmonica common/src/CanDriveHarmonica.cpp) missing.

I just downloaded the stack cob_driver and with it the can_open_motor, but nothing works. Any ideas how to solve the problems and run it?

I wanted to run the CanDriveHarmonica.cpp Node from the cob_canopen_motor package, but rosmake does not create the executable file Below you can see the output, there is no error, but still the binary is not built:

didi@C3PO:~$ rosmake cob_canopen_motor
[ rosmake ] rosmake starting...                                                 
[ rosmake ] Packages requested are: ['cob_canopen_motor']                       
[ rosmake ] Logging to directory /home/didi/.ros/rosmake/rosmake_output-20130729-112109
[ rosmake ] Expanded args ['cob_canopen_motor'] to:
['cob_canopen_motor']       
[rosmake-0] Starting >>> roslang [ make ]                                       
[rosmake-2] Starting >>> libpcan [ make ]                                       
[rosmake-1] Starting >>> libntcan [ make ]                                      
[rosmake-0] Finished <<< roslang  No Makefile in package roslang                
[rosmake-0] Starting >>> roscpp [ make ]                                        
[rosmake-2] Finished <<< libpcan ROS_NOBUILD in package libpcan                 
[rosmake-1] Finished <<< libntcan ROS_NOBUILD in package libntcan               
[rosmake-0] Finished <<< roscpp  No Makefile in package roscpp                  
[rosmake-0] Starting >>> cob_utilities [ make ]                                 
[rosmake-0] Finished <<< cob_utilities ROS_NOBUILD in package cob_utilities     
[rosmake-0] Starting >>> cob_generic_can [ make ]                               
[rosmake-0] Finished <<< cob_generic_can ROS_NOBUILD in package cob_generic_can 
[rosmake-0] Starting >>> cob_canopen_motor [ make ]                             
[rosmake-0] Finished <<< cob_canopen_motor ROS_NOBUILD in package cob_canopen_motor
[ rosmake ] Results:                                                            
[ rosmake ] Built 7 packages with 0 failures.                                   
[ rosmake ] Summary output to directory                                         
[ rosmake ] /home/didi/.ros/rosmake/rosmake_output-20130729-112109

I already tried different things inside the CMakeList.txt and at the moment I have there only this line:

rosbuild_add_executable(CanDriveHarmonica common/src/CanDriveHarmonica.cpp)

I wanted to run the CanDriveHarmonica.cpp Node from the cob_canopen_motor package, but rosmake does not create the executable file Below you can see the output, there is no error, but still the binary is not built:

didi@C3PO:~$ rosmake cob_canopen_motor
[ rosmake ] rosmake starting...                                                 
[ rosmake ] Packages requested are: ['cob_canopen_motor']                       
[ rosmake ] Logging to directory /home/didi/.ros/rosmake/rosmake_output-20130729-112109
[ rosmake ] Expanded args ['cob_canopen_motor'] to:
['cob_canopen_motor']       
[rosmake-0] Starting >>> roslang [ make ]                                       
[rosmake-2] Starting >>> libpcan [ make ]                                       
[rosmake-1] Starting >>> libntcan [ make ]                                      
[rosmake-0] Finished <<< roslang  No Makefile in package roslang                
[rosmake-0] Starting >>> roscpp [ make ]                                        
[rosmake-2] Finished <<< libpcan ROS_NOBUILD in package libpcan                 
[rosmake-1] Finished <<< libntcan ROS_NOBUILD in package libntcan               
[rosmake-0] Finished <<< roscpp  No Makefile in package roscpp                  
[rosmake-0] Starting >>> cob_utilities [ make ]                                 
[rosmake-0] Finished <<< cob_utilities ROS_NOBUILD in package cob_utilities     
[rosmake-0] Starting >>> cob_generic_can [ make ]                               
[rosmake-0] Finished <<< cob_generic_can ROS_NOBUILD in package cob_generic_can 
[rosmake-0] Starting >>> cob_canopen_motor [ make ]                             
[rosmake-0] Finished <<< cob_canopen_motor ROS_NOBUILD in package cob_canopen_motor
[ rosmake ] Results:                                                            
[ rosmake ] Built 7 packages with 0 failures.                                   
[ rosmake ] Summary output to directory                                         
[ rosmake ] /home/didi/.ros/rosmake/rosmake_output-20130729-112109

I already tried different things inside the CMakeList.txt and at the moment I have there only this line:

rosbuild_add_executable(CanDriveHarmonica common/src/CanDriveHarmonica.cpp)

It works now! Thanks a lot! But it did not work with

car_joy::Velocity::ConstPtr goal_

,it seems goal_ have to be ConstPtr type from the SteerCarGoal.h.

So it worked with:

car_joy::SteerCarGoal::ConstPtr goal_;

I tried it before, it gives me an error. Like: no correspondence for »operator=«. And I tried with goal_ as car_joy::SteerCarGoal goal_; and car_joy::Velocity goal_; (Velocity is a custom msg with linear and angular float types.

Hey, I encountered the following problem: My goal definition in my action file has two types and I only know how to get one of this values from the acceptNewGoal().

My goal definition is:

#goal definition

float32 linear

float32 angular

---

and my goalCB:

void goalCB()

{

goal_.linear = as_.acceptNewGoal()->linear;

steer_.linear = goal_.linear*15/2;  
steer_.angular = goal_.angular*45/2; 
steer_pub_.publish(steer_);

}

As you can see I can only manage to get one value, not both. Anyone an idea how to do it? Or is it even possible? Thanks in advance!

It works now. Thanks.