Check for DJI minimum imposed waypoint distance
Check for DJI maximum imposed waypoint distance
Check for DJI max radius / distance limits
Check for altitude limits
If a limit is violated, warn and inform the user accordingly.
Undocumented by DJI, but stackoverflow and other forums claim range of [0.5m to 2000m] for WP distance limits. Drone Harmony currently uses 1.2m for minimum waypoint distance in automated mission planning.