Hi Nicolas,

You'll find a bunch of basic laser scan processing code in the laser_pipeline stack.  http://www.ros.org/wiki/laser_pipeline  Going from a LaserScan to PointCloud is implemented in the laser_geometry package in that stack.

Tully

2010/11/24 Nicolás Alvarez Picco <nicolasapicco@hotmail.com>
Hi Everybody,

I am working in simulation, specifically I am simulating a diff robot in Gazebo, but now I need to use the laser_data of the robot. So actually I don't know how to subscribe to that topic, I mean I can not find information about how can I acquire that info. I know the laser take a number of samples that I guess you can set in the model, but the msg sensor_msgs/LaserScan  is an array that has all those points? Is available an standard code for subscribing this kind of msg. Because I looked into the amcl code, although it is very difficult for my C ++ level.
I have read the info about the sensor_msgs/LaserScan, though it gives info about the angles, times, but I dont know how can I get each point return by the laser so later with the tf I can know where they are inside a map.
Any kind of help is useful. Thanks.

Nicolas


_______________________________________________
ros-users mailing list
ros-users@code.ros.org
https://code.ros.org/mailman/listinfo/ros-users




--
Tully Foote
Systems Engineer
Willow Garage, Inc.
tfoote@willowgarage.com
(650) 475-2827