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Simplification of the Ground creation by grids
More and more ground are grids (ASC Format) with millions of points. A new parameter was added to optimize MithraSIG ground creation. This new Z accuracy parameter reduces the number of ground points with a very limited lack of precision.
It reduces points considering a maximum tolerated gap between the initial data and MithraSIG ground. An altitude comparison is done for each point between a complete data triangulation and an approximate triangulation while remaining inside the tolerance.
The result thus obtained represents the ground feature points: thalwegs, crests (mounds), summits, hollows, break points (banks).
Tolerance  | 
None  | 
20cm  | 
1m  | 
Number of Ground points  | 
4.000.000  | 
14.881  | 
1.495  | 
Visualization of Ground points  | 
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