Setting Fill Colors, Elevation Values, and Null Values

§  Fill Color is used mainly to cover elements that you don’t want to show in the final output, such as military facilities or private land.

§  Fill Elevation is mainly used to crop elevation values (e.g., elevation values below a high tide mark) or replace elevation values (e.g., cover an area with a flat elevation to hide secure information).

§  Remove Null Value is used to remove unwanted values that represent non existing values or transparency. On image layers, this operation can remove pixels depicting seas and oceans, whereas on elevation layers, the Remove Null Value operation can remove extreme elevation values. If there are several layers of layers, removing a value from a top layer exposes the layers below it according to the UPP levels and the order in the Ordered Layer List.