What is the size of octomap?
I'm working with octomap, I call the /octomap_binary service, and convert it to octree. As I know the octree contain the occupied or free nodes.
Q: How can I know the amount of area covered?
I think about summation of the size of leaf nodes, is there a better way to do it.
context: I'm working on doing exploration using UAV, and I want to know how much area is covered.