Bình luận chính thức
There are only two options: custom DEM or SRTM. The difference in resolution is substantial. It goes from 10 cm/px to 30 m/px.
You can reduce the number of waypoints by flying higher. The Terrain Awareness feature will keep the flight within plus or minus 5% of the designated AGL altitude. The higher you fly the more it allows it to float and gives you less waypoints.
We have had users download the custom DEM and process it a bit themselves to smooth things out and then reupload it to the system using this: