Let me see if I can articulate this:

This is just for understanding, as I know I can change the waypoint height. That is not my answer/resolution to my question. As this is only an example of what I hope to understand. It could be anywheresviille.

Example

I want to set waypoints ahead of time from home. 15 miles form location.

Area I will be flying is not a level area.

setting waypoints

waypoint 1 100 feet

waypoint 2 100 feet

in the image where the high rises are is about 60 feet higher than the water line. (waypoint 2, the ground is 60 feet higher than waypoint 1)

I will be setting way point 1 from across the bridge at, say, 100 feet which when flying to the high rises is about middle height of the bridge.

once I get to the other side will the drone fly 100 feet in height from that area, or does it fly 100 feet from waypoint one's AGL reading? Thus only being 40 feet in the air.

Since I am programing waypoint 2 at 100 feet, even tho AGL at high rises is 60 higher from my waypoint 1 was AGL zero.

I hope I was able to ask my question with some clarity and using images.

Again, this could be anywheresville, I am just looking for understanding of how waypoints calculate.

All heights are relative to the take off point,   Litchi however lets you do terrain following.

So I create the waypoints  ahead of time.
I set everything up ahead of time
waypoints  point 1 and point 2
preset height of 100 feet
POI to 100 feet

One day I launch from AGL 1 foot
run waypoint
it goes to waypoint 1 and is at 100 feet
POI is recoreded at 100 feet.
All is good.

day 2 I launch from the top of one of the buildings
say 200 feet AGL
I run same waypoint
Now is waypoint 1and 2 at 300 feet AGL?
POI at 300 foot AGL

I am trying to understand the dji go 4 app better and how it thinks.
The preplanned flight part is what I am really wondering about. How does the app work in this situation?

THx for your first reply

chainmon Posted at 2-11 03:29
So I create the waypoints  ahead of time.
I set everything up ahead of time
waypoints  point 1 and point 2

And this as a pre planned, saved waypoint that I created from home and traveled to the waypoint site, 15 miles away.