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2015-07-29 07:03:17 -0500 answered a question Gmapping of custom robot

Hey I am also new to ROS, but I can answer to some of these questions:

  1. It is not necessary to create a real kinect, you can just realize a simple box. But the origin is important for your future tf, and to correctly link the kinect to the rest of the robot.

  2. Give more details about what is the output of your encoders.

  3. No, you still need the kinect to make it run on an known map, because amcl node subscribes to this /scan topic provided by the Kinect or laser you use. ( take a look to http://wiki.ros.org/amcl )

  4. After mapping you can give a position on your 2D map but you have to specify where is your initial position on the map first. Look at the autonomous navigation tutorial ( http://wiki.ros.org/turtlebot_navigat... ) and the amcl_demo.launch for more details.

Hope it would help.

2015-07-28 03:22:24 -0500 received badge  Enthusiast
2015-07-21 09:36:13 -0500 asked a question Help Here: Problem with the stereo_image_proc node

Hello everybody, I have started ROS few times ago and I try to get the stereo visual odometry from a VI Sensor skybotix camera. After struggling a lot, I discovered that my problem comes from the stereo_image_proc node which publishes a wrong image_rect:

The image_rect published, displayed with an image_view stereo_view, gives me 2 grays windows which change of intensity when something moves infront of the cameras. But no real image rectified.

What I have tryed: To make the source node of stereo_image_proc nod run: same results and I have verified that the stereo_image_proc had in input topics good image_raw To vary parameters of the node in rqt_reconfigure

thank you by advance for your help!

2015-07-13 03:01:12 -0500 received badge  Supporter (source)