Artik how is river width affected by map scale?
Say if the map scale was 1 to map scale 2.5. Is the river width the same or is decreased (1:1 vs 1:2.5)?
It does not change.
In fact, the river data base I use does not contain an information regarding real river width, only a "mark" how major the river is.
I defined default river width such that it can be represented smoothly enough using AH elevations grid.
It must be at least 1900 feet width otherwise you'll see some artifacts related to terrain polygons.