aaser's profile - activity

Hi, we're currently setting up a robot using stereo navigation using rtabmap_ros and a zed. We're using the pointcloud to generate costmaps, and we can send goals via 2D Nav Goal using rviz which gives us a plan and allows move_base to send a /cmd_vel message.

We've got a few problems though, first of all we want to be able to send goals outside of the global cost map by having the user clicking a regular map (that is, the user has a map, but the robot simply receives a goal outside of its costmap). Obviously this makes it impossible for the planner to make a plan, but we want to explore the perimeter of the global cost map in order to reach the goal. How can this be done?

Thanks, appreciate it, and it seems like it's just what I was looking for too. I am aware of the joy package, but I wanted to use a controller as a learning tool since I get so much feedback from the system, rather than trying to divine why my arduino isnt blinking like it should. Thanks a lot!

Thanks, appreciate it, and it seems like it's just what I was looking for too. I am aware of the joy package, but I wanted to use a controller as a learning tool since I get so much feedback from the system, rather than trying to divine why my arduino isnt blinking like it should. Thanks for the help!

Hi, I'm very new to ROS, and I'm having some issues understanding what the correct way to poll an event stream is. Currently I am reading events from an xbox controller, and I want to present a snapshot of the current controller state say 60 times per second. The code I've come up with is http://pastebin.com/N8GvK2eM , (and less important, http://pastebin.com/u0J179e2 ).

This seems to be the wrong way to go about things, as I can't seem to find a way to actually make it run as an ROS node. What is the correct way to design this? Am I thinking about it wrong, or is there a simple yet obvious flaw? Running ROS indigo on linux mint.

Hi, I'm very new to ROS, and I'm having some issues understanding what the correct way to poll an event stream is. Currently I am reading events from an xbox controller, and I want to present a snapshot of the current controller state say 60 times per second. The code I've come up with is http://pastebin.com/N8GvK2eM , (and less important, http://pastebin.com/u0J179e2 ).

This seems to be the wrong way to go about things, as I can't seem to find a way to actually make it run as an ROS node. What is the correct way to design this? Am I thinking about it wrong, or is there a simple yet obvious flaw?