Hello there! I am trying to "extract" a 2D matrix from OccupancyGrid data, so that i can create some random points for a pathfinding algorithm i am working on for my University Thesis, but i cant seem to find any good documentation on the subject. I am relatively new to ROS and i was wondering there are any suggestions on where i could look it up.
I running the hector_quadrotor_demo package,on ROS Indigo for Ubuntu 14.04 Trusty, and trying to get the data from the /map topic (hector_mapping package).
Any help would be greatly appreciated!
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