Labroides
Core User of DJI
Flight distance : 9991457 ft
Australia
Online
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Ranjan Posted at 4-27 00:04
Here is a set of images from mapping mission, I would also like to know where can we find the altitude data.
https://drive.google.com/drive/f ... xOrVgkxch9OdXxAKM_v
No worries.
The metadata has a number of sections, some of which don't show in simple metadata viewers.
The XMP section shows the two heights, Absolute Altitude and Relative Altitude.
These are in metres.
Relative Altitude is the height relative to the launch point and the height you see on the screen when flying.
The Absolute Altitude is useless.
It's a rough approximation of height above sea level.
But DJI uses a faulty formula to convert air pressure to height ASL and the formula assumes that air pressure doesn't change with the weather.
The Absolute Altitude data is usually quite wrong and can easily be out by +/- 200 ft or more. |
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