aruco_marker_distance.py: draw line on image to check new functionality is working
aruco_marker_distance.py: draw line on image to check new functionality is working

rc500/ardrone_archive_aarons_laptop,rc500/ardrone_archive_aarons_laptop,rc500/ardrone_archive_aarons_laptop,rc500/ardrone_archive_aarons_laptop,rc500/ardrone_archive_aarons_laptop