Request: Enhancement to Survey Grid - flight path is based on highest ground elevation for each path

Hi developers,
I'm not sure whether this feature has been requested before. I would like to request enhanced feature to survey grid.

- Flight path/grid altitude is based on highest ground elevation
- This will maintain the average height between plane altitude and ground elevation hence improve average GSD.
- Plane will either descend/ascend before going to next path depending the highest ground elevation on the next path. please see example.

Appreciate if this could be implemented as it will improve quality of mapping data.
Thank you in advance.

example are as photos attached.


The issue describes Survey Grid flight-path altitude behavior and includes two attached examples, but names no source file or test. Begin by locating the Survey Grid planning entry point and determine how per-path elevation changes should be specified and verified against the examples. Done means successive paths follow the requested highest-ground-elevation behavior with verification of the resulting flight path.

Written by the indexing model from the issue text.