Gmapping is for creating a 2-D occupancy grid map. You need 3d representation of environment. check this page on mapping using quadrocopter.
Originally posted by bvbdort with karma: 3034 on 2014-10-28
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Original comments
Comment by Francis Dom on 2014-10-28:
Hi
The sensor that I am using gives depth output (not color unlike MS Kinect) only and so I am using gmapping
Also I am using the PX4 autopilot on the Parrot Drone
Comment by polde on 2018-02-12:
hey! did you ever come to a solution about this problem?