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2021-07-04 12:36:45 -0500	received badge	● Nice Question (source)
2021-03-23 07:15:08 -0500	received badge	● Student (source)
2019-05-20 02:33:48 -0500	marked best answer	callback models for roscpp and rospy For example, I have a ROS node that has several callback and timers. Those callbacks and timers need to read or modify the same global variable. Should I use mutex or other locking mechanism to prevent weird competing conditions? In other words, will those callbacks and timers be processed parallelly or sequentially? And will rospy and roscpp behave the same in this kind of situation? Thanks a lot.
2017-11-20 06:13:59 -0500	received badge	● Famous Question (source)
2017-09-18 14:41:05 -0500	edited answer	How to set callback queue size in rospy I have the same question exactly. I thought that I should always process the latest message when queue_size is set to 1.
2017-09-18 14:41:05 -0500	received badge	● Editor (source)
2017-09-18 14:09:26 -0500	edited answer	How to set callback queue size in rospy I have the same question exactly. I thought that I should always process the latest message when queue_size is set to 1.
2017-09-18 14:08:47 -0500	answered a question	How to set callback queue size in rospy I have the same question actually. I thought that I should always process the latest message when queue_size is set to 1
2017-08-28 21:20:57 -0500	received badge	● Notable Question (source)
2017-08-07 08:32:17 -0500	received badge	● Popular Question (source)
2017-08-03 02:23:56 -0500	asked a question	callback models for roscpp and rospy callback models for roscpp and rospy For example, I have a ROS node that has several callback and timers. Those callback
2017-05-09 06:14:41 -0500	commented question	I can't get data from GPS Garmin 18x LVC using gpscat I got the same problem for garmin 18x usb. The device can be recognized well but no data comes out. I suppose the reason
2017-02-02 21:32:45 -0500	commented answer	Accessing layers in Velodyne Point cloud Using a vector of pcl::PointCloud pointers should be a good way to accumulate the points of each ring.
2017-01-23 21:23:49 -0500	received badge	● Enthusiast
2017-01-15 19:13:35 -0500	answered a question	How can I add a floorplan image in rviz? after trying various ways, i found that publishing the image as colored pointcloud is actually a very good approach.
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