GGU-2D-TRANSIENT: "Linear sources" menu item

The procedure for defining time-dependent linear sources is explained in a dialog box. After clicking system nodes and confirming the selection using the [Return] key, a dialog opens for selecting a polygon course.

If linear sources have already been defined an additional "Delete all linear sources" button appears in the info box. If the dialog box is closed using this button, all linear sources are deleted and a new linear source can be defined. If individual linear sources or sections of them need to be deleted, click the system node once again and exit the polygon course allocation dialog box by pressing "OK". The following dialog box now appears:

Click the "Delete old source" button until all sections of the marked linear source are deleted and then, if required, define the new linear source. If you exit the box by pressing "Cancel" before you are finished, the undeleted boundaries will remain in place.