It fills the depression points present within a DEM so that
the drainage directions are defined in each point.
Inputs
- the file containing the elevations
Output
- the file containing the corrected elevations
Notes
The flooding algorithm (pitfiller) fills all pits present in the DEM.
Obviously these could be real and not a product of gridding the landscape.
In this case we should find a representation of the drainage
directions considering also the possible lakes and ponds, which is not
yet implemented.