Hi,
I am assuming that you want to view the occupancy map. For that you can use show method from occupancyMap3D to view the map in a 3D plot. The plot might look a bit discrete if the resolution of the map is low or the number of points added to the map is less but other than that the map will show up in a proper manner showing the probabilities of obstacle in the map.
Refer to the following link to know more about the functions in occupancyMap3D and also about the show function.
