Grid_map: Mapping empty space without obstacle in laser range

Posted by Mark on
URL: http://official-rtab-map-forum.206.s1.nabble.com/Grid-map-Mapping-empty-space-without-obstacle-in-laser-range-tp585.html

Hi,

the grid_map don't declare regions with no obstacle in laser range as empty space for me. The map is simply empty in such regions. See here: http://markalbers.de/bilder/grid_map.png 
Is there a way to change it?

Regards
Mark