JoelP wrote :
"One of the things I miss the most about Litchi is Virtual Litchi. After planning a mission in Litchi you can open that mission in Virtual Litchi which accesses the Google Earth Pro app and does a simulation of the planned flight. If you don't have the drone pointed in the riight direction or your flight inadvertently intersects a hill you would know as you flew Virtual Litchi."
I do agree. I use to fly mostly in tricky terrain environments (cliffs, canyons, hills etc.) and I pre-plan carefully my flights with Lichi and Namirda's VLM whichs provides a wonderful interface with Google Earth, allowing to examine in details your future flight from every perpspective, including framing of videos or photos in the virtual flight.
One feature of G-E very useful but mostly neglected by pilots is called "Viewshed" or "Bassin visuel", in French. See here :
Explore 360-degree views of an area for building locations, real estate evaluations, advertisement placement, and other business planning with Viewshed. Viewshed is not designed for scientific precisi
support.google.com
With Viewshed you can check at every waypoint that you will be in direct line of sight with your drone. Just right click on the waypoint and choose "Viewshed" or, in French, "Afficher le bassin visuel" and G-E will compute what areas the drone can "see" when i reaches this waypoint. These areas are highlited in green on the map.
In the example of the complex mission below (that I didn't realize other than virtually), one can see that if I stay close to waypoint 1, when the drone will reach waypoints 15-16 (Viewshed from waypoit 16) it could hardly "see" the place I stay with my RC and vice-versa, i.e. very likely the connection will be lost. This can be avoided by increasing slightly the altitude of these two waypoints or by moving them away from waypoint 1.