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The use of 2D infiltration zones in combination with rain on grid rainfall is become more and more common.
Currently it is time consuming and frustrating to have to ensure there's no overlaps between infiltration zones. The mesher also seems to hallucinate overlaps that don't actually exist, and becomes very slow if the infiltration zones are complex.
The easiest fix would be to implement the 'priority' functionality to infiltration zones that is already included for roughness zones, so overlaps can be deal with in this way.
Longer term it would be great if ICM could allow roughness and infiltration zones to be imported as raster files, or change the algorithm so complex polygons don't slow down the meshing.
