fixed issue #36
fixed issue #36

willdzeng/rtabmap_ros,introlab/rtabmap_ros,Notou/rtabmap_ros,introlab/rtabmap_ros,Notou/rtabmap_ros,introlab/rtabmap_ros,willdzeng/rtabmap_ros,willdzeng/rtabmap_ros,Notou/rtabmap_ros,introlab/rtabmap_ros