ILWIS expressions on the command line

By typing an expression on the command line of the Main window, you can perform a calculation or another operation. To calculate with raster maps, type a MapCalc formula; to perform an operation, type a complete expression that includes all parameters required by that operation. The operation's dialog box is skipped.

When you use the definition sign = in an expression, the output map, table or column will be dependent. The expression by which these dependent maps, tables and columns are created is stored by these maps, tables and columns as their definition.

A simple ILWIS expression reads: OUTMAP = MapFilter(band1, avg3x3)

A list of ILWIS expressions for operations is presented in Appendices : ILWIS expressions. Advanced users can create a script to execute a series of expressions.