Nelson Wu's profile - activity

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2021-02-07 13:35:04 -0500	received badge	● Student (source)
2018-04-03 19:45:45 -0500	received badge	● Famous Question (source)
2018-02-13 02:25:03 -0500	received badge	● Famous Question (source)
2018-01-27 02:44:21 -0500	received badge	● Notable Question (source)
2018-01-18 10:07:32 -0500	received badge	● Notable Question (source)
2018-01-18 08:10:11 -0500	received badge	● Popular Question (source)
2017-12-11 09:25:11 -0500	edited question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-12-11 09:24:59 -0500	edited question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-12-11 09:23:24 -0500	edited question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-12-11 09:17:33 -0500	edited question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-12-11 09:16:59 -0500	edited question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-12-11 09:16:08 -0500	edited question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-12-11 09:15:08 -0500	edited question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-12-11 09:14:51 -0500	edited question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-12-11 09:13:48 -0500	asked a question	Local costmap is empty when using move_base-node Local costmap is empty when using move_base-node Dear fellow ROS-Devs: I don't know that Local costmap is empty when usi
2017-09-20 18:26:42 -0500	received badge	● Notable Question (source)
2017-09-20 18:26:42 -0500	received badge	● Famous Question (source)
2017-07-12 03:33:11 -0500	received badge	● Notable Question (source)
2017-07-03 11:05:59 -0500	received badge	● Popular Question (source)
2017-07-02 21:41:46 -0500	received badge	● Editor (source)
2017-07-02 21:41:46 -0500	edited question	Precision navigation Precision navigation Hi, I have build Robot navigation using ROS navigation package, But found it's accuracy error about
2017-07-02 21:41:10 -0500	asked a question	Precision navigation Precision navigation Hi, I have build Robot navigation using ROS navigation package, But found it's accuracy error about
2017-04-22 16:25:57 -0500	received badge	● Taxonomist
2017-02-15 04:16:22 -0500	received badge	● Popular Question (source)
2017-02-14 00:32:52 -0500	asked a question	How to convert ROS image message to OpenCV image array(circle buffer)? We usually use the below code to convert ROS image message to OpenCV image cv_bridge::CvImagePtr cv_ptr; cv_ptr = cv_bridge::toCvCopy(msg, "bgr8" I need save ROS image message to a circular buffer for time delay. But I didn't know how coding that converting ROS image message to OpenCV image array(circular buffer). Does anyone help me ? Thanks
2016-12-20 11:31:33 -0500	received badge	● Popular Question (source)
2016-11-10 02:05:28 -0500	asked a question	How a mobile platform can be used with ROS Navigation We have a mobile platform. It can move and read odometry information by using C program. How to package it can be used with ROS Navigation and SLAM . Thank you very much.