How to use ...

the Operation-tree and Operation-list

The Operation-tree and the Operation-list provide an overview of all ILWIS operations. The Operation-tree and the Operation-list are located on the first two tabs in the Operations/Navigator pane, by default along the left hand side of the Main window.

The Operation-tree and the Operation-list are very sensitive to clicking, double-clicking and drag and drop actions. The Operation-tree and Operation-list are mostly used to start operations bypassing the Operations menu, or to create, show or edit objects. Using the Operation-tree and Operation-list capabilities is far more efficient than using menus.

To get more information on an operation:

move the mouse pointer over an operation, the status bar gives a brief description of that operation, or
click with the right mouse button on an operation, and select Help from the context-sensitive menu.

To start an operation:

double-click the desired operation in the Operation-tree or Operation-list, or
click with the right mouse button on an operation, and select Run from the context-sensitive menu.

To start an operation with a certain input map or table:

drag a map or table from the Catalog to an operation in the Operation-tree or the Operation-list.

To extend the Operation-tree, the Operation-list and the Operations menu:

ILWIS scripts and external applications can be added to the Operation-tree, the Operation-list and the Operations menu by setting one or more Script or Tools folders/directories in the Preferences. For more information, refer to How to customize the Operation-tree, the Operation-list and the Operations menu.

Tips:

To start an operation, you can also type a command on the command line of the Main window (see also Appendices : ILWIS commands).
In all cases mentioned above, a dialog box is opened in which you can enter the input and output object names and other parameters necessary for the operation.

When you click the Show or Define button in the operation's dialog box, an ILWIS expression is generated on the command line of the Main window.

Output objects that are obtained through an operation's dialog box are always dependent.

Advanced users can type complete ILWIS expressions on the command line of the Main window or create a script to execute a series of expressions. For more information, see Appendices : ILWIS expressions and Appendices : ILWIS script language (syntax).