Difference between /octomap_grid and /grid_map

Posted by mmaissan on
URL: http://official-rtab-map-forum.206.s1.nabble.com/Difference-between-octomap-grid-and-grid-map-tp8155.html

Hello,

I am unsure what the difference is between the octomap_grid and the grid_map occupancy grids. As I understand, both project 3D objects onto a 2D plane. In which situations should I use the one over the other? To me, it seems like they will output the exact same thing, where octomap_grid is based on the OctoMap 3D fused point cloud map.

Thank you and best regards,
Marco