rem870's profile - activity

HI

i want to use a sensor_msgs/MagneticField and sensor_msgs/Illuminance type message but my distribution (fuerte) don't have those types. (i checked the file sensor_msgs/msg) so i get the error ERROR: Cannot load message class for [sensor_msgs/Illuminance]. Are your messages built?

my messages are built, in fact i used from the same topic the sensor_msgs/imu

what should i do?

Hi

i am trying to use rostopic pub to control the motors from the keyboard. i try to publish to the subscribed topic /katana_arm_controller/joint_movement_action/goal but i have to type header,goal_id , goal which i don't know. i tried to read the published

/katana_arm_controller/joint_movement_action/result but i get error message ERROR: Cannot load message class for [katana_msgs/JointMovementActionResult]. Are your messages built?

what should i do?

thanks

Hi, is it possible to teleop katana arm robot with a phantom using ros packages?

thanks

Hi ,

i am trying to cancel a follow joint trajectory using rostopic pub. i can subscribe to the topic /follow_joint_trajectory/cancel [actionlib_msgs/GoalID] when i type rostopic pub ..../follow_joint_trajectory/cancel actionlib_msgs/GoalID (+TAB) i get the args "stamp: secs: 0 nsecs: 0 id: ''" . i cant get it to work though. what should i do?

thanks

ok . if i dont find another solution i may have to switch to groovy

Hi

i am trying to get the inverse kinematics on the katana package, the way the pr2 kinematics tutorials do.

the problem is that there is no arm navigation stack to launch.

how can i create one? should i use this http://www.ros.org/wiki/arm_navigation/Tutorials/tools/Planning%20Description%20Configuration%20Wizard

thanks

Hi

i am trying to rosmake but i get the message make[3]: Entering directory /home/alexandros/fuerte_workspace/sandbox/phantom_omni/build' Linking CXX executable ../bin/omni /usr/bin/ld: warning: libraw1394.so.8, needed by /usr/lib/libPHANToMIO.so.4, not found (try using -rpath or -rpath-link) /usr/lib/libPHANToMIO.so.4: undefined reference toraw1394_destroy_handle'

i have installed all the dependencies needed and the libraw1394. what should i do ?

ok , in 3-4 days i will be able to test it with a kinect and i hope that it will be able to give me the exact location (xyz) of the face via the /target_point .

hi thanks for the answer, it worked half way, i get an image from my web cam but it just 'green' noise. so my camera is not uvc?

i think move_arm is extremely slow, so its better to do it via inverse kinematics

Hi i have installed your package. i am trying to use it ,but i haven't succeeded. firstly i run cheese because without it nothing works. then i run the two commands . from the first one i get a : [ WARN] [1377289686.323464310]: Reconfigure callback failed with exception unable to allocate buffers. the other one works fine . so i get a : [INFO] [WallTime: 1377289898.645841] Starting pi_face_tracker.

the problem is that when i type rostopic echo /whatever gets published then nothing appears on my screen, not even my /camera/image_raw.

the cheese program works fine . what should i do

edit: i just saw the with my laptops camera it works fine. with my msi star cam clip it does not. and when i run the first command i get

: Invalid argument
[ERROR] [1377291803.163531318]: Problem setting exposure. Exception was unable to get control

setting control 9a0902
unable to get control
: Invalid argument
[ERROR] [1377291803.163756417]: Problem setting absolute exposure. Exception was unable to get control

setting control 98091b
current value of 98091b is 90
new value of 98091b is 142
setting control 98090c
unable to get control
: Invalid argument
[ERROR] [1377291803.164985903]: Problem setting white balance temperature. Exception was unable to get control

setting control 980913
unable to get control
: Invalid argument
[ERROR] [1377291803.165156665]: Problem setting gain. Exception was unable to get control

setting control 980902
current value of 980902 is 25
unable to set control
: Numerical result out of range
[ERROR] [1377291803.165319116]: Problem setting saturation. Exception was unable to set control

setting control 980901
current value of 980901 is 20
new value of 980901 is 50
setting control 980900
current value of 980900 is 128
new value of 980900 is 66
Segmentation fault, stopping uvc camera driver.
[ERROR] [1377291803.302588952]: Segmentation fault, stopping uvc camera driver.
[uvc_cam_node-2] process has died [pid 15237, exit code -11, cmd /home/alexandros/fuerte_workspace/sandbox/uvc_cam/bin/uvc_cam_node __name:=uvc_cam_node __log:=/home/alexandros/.ros/log/71731024-0c37-11e3-a02f-001de0d62475/uvc_cam_node-2.log].
log file: /home/alexandros/.ros/log/71731024-0c37-11e3-a02f-001de0d62475/uvc_cam_node-2*.log