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2014-12-02 02:37:03 -0600 commented answer About how to run and use a package

It seems that when i installed the rotoscan node, it can be always output catkin_make error , if i delete , it will be ok

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2014-11-27 20:37:58 -0600 commented answer About how to run and use a package

of cause i have , maybe , it is not a correct package ?

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2014-11-27 03:43:31 -0600 commented answer About how to run and use a package

I actually used the catkin_make into my catkin workspace , but it still like this error ,is there any other solutions ?

2014-11-27 03:31:26 -0600 commented answer About how to run and use a package

thanks , but when i use the 'Edit ' the output still ERROR: cannot launch node of type [rotoscan_node/rotoscan_node]: can't locate node [rotoscan_node] in package [rotoscan_node] maybe ,i can try to build it next .

2014-11-27 02:19:04 -0600 asked a question About how to run and use a package

I have installed a driver of rotoscan_node for a laser ,beacuse of this package have no .config or .py file , and the launch file cannot find the node , so i don`t konw how to run and use it , please give me a suggest ,thanks a lot

the driver is in this website : http://wiki.ros.org/rotoscan_node

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2014-11-25 20:10:30 -0600 asked a question Error about the rotoscan_node driver for the leuze laser scanner

I have installed this driver in this web http://wiki.ros.org/rotoscan_node But when I

roslaunch rotoscan_node laserscanner_tcp.launch

it output this error ERROR: cannot launch node of type [rotoscan_node/rotoscan_node]: can't locate node [rotoscan_node] in package [rotoscan_node]

it seems that their no this node in the rotoscan_node , how can i success use the leuze laser scan?

please give me a introduction how to use it well ! thanks !

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2014-11-18 05:14:13 -0600 commented answer how to install a driver like usb_cam

thank you very much ,i have install it success! it can give me the method to install other drivers ! !

2014-11-18 02:54:56 -0600 asked a question how to install a driver like usb_cam

i have searched the sensor list on the: http://wiki.ros.org/Sensors#Cameras

but i want know how to install it if i know the Source: git https://github.com/bosch-ros-pkg/usb_... (branch: master)

thanks a lot

2014-11-18 01:23:01 -0600 asked a question Webcam doesn't work in Hydro

As i used the $ roslaunch rbx1_vision uvc_cam.launch device:=/dev/video0 in the book ros-by-example for hydro , i find the output like this :

exbot@ubuntu:~/catkin_ws$  roslaunch rbx1_vision uvc_cam.launch device:=/dev/video0
... logging to /home/exbot/.ros/log/bda49708-6edb-11e4-b665-44334c160d17/roslaunch-ubuntu-4099.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://ubuntu:34919/

SUMMARY
========

PARAMETERS
 * /rosdistro
 * /rosversion
 * /uvc_cam_node/device
 * /uvc_cam_node/exposure
 * /uvc_cam_node/frame_rate
 * /uvc_cam_node/gain
 * /uvc_cam_node/height
 * /uvc_cam_node/width

NODES
  /
    uvc_cam_node (uvc_cam/uvc_cam_node)

ROS_MASTER_URI=http://localhost:11311

core service [/rosout] found
process[uvc_cam_node-1]: started with pid [4117]
[ INFO] [1416292448.855562602]: opening uvc_cam at 320x240, 20.000000 fps
opening /dev/video0
capabilities 84000001
pixfmt 0 = 'YUYV' desc = 'YUV 4:2:2 (YUYV)'
  discrete: 640x480:   1/30 1/30 
  discrete: 320x240:   1/30 1/30 
camera formats supported
format 0 = 'YUYV' desc = 'YUV 4:2:2 (YUYV)'
  discrete: 640x480:   1/30 1/30 
  discrete: 320x240:   1/30 1/30 
[ WARN] [1416292448.856026405]: Reconfigure callback failed with exception couldn't set format:

and when i used :

$ rosrun image_view image_view image:=/camera/rgb/image_color

it only show a blank window;

why ??

i can see the picture form my webcam from cheese, but cant use it in ROS hydro

thinks a lot !