Deleting Project Elements

In CivilGEO software, the user can create projects that can have various HEC-HMS or HEC-RAS project elements such as:

The user can delete these project elements directly from the Map View. Select the element to be deleted from the Map View. Then, either press the [Delete] key or right-click and choose Delete command from the displayed context menu, as shown below.

Alternatively, the user can delete these project elements using the Delete command from the ribbon menu, as explained in the following sections.

Note: The Delete command does not delete other project elements connected to the deleted elements.

Deleting Project Elements in GeoHECHMS

The user can delete HEC-HMS project elements such as Subbasins, Sources, Cross Sections, Junctions, etc. using the corresponding Delete command.

For example, follow the steps below to manually delete subbasins using the Delete Subbasins command:

1. From the Input ribbon menu, click on the Drainage Subbasins dropdown menu and select the Delete Subbasins command.
   
2. The Delete Subbasins dialog box will be displayed.
   
3. All the subbasins of a project will be displayed under the Select Subbasins section.
   Note: If subbasins are already selected on the Map View prior to running this command, the same subbasins will be shown selected within the dialog box.
4. The user can check the corresponding checkbox entries of the subbasins that are to be deleted.
5. Alternatively, the user can click the [Pick] button to manually select the subbasins from the Map View. Clicking the [Pick] button causes the dialog box to temporarily disappear and allows the user to manually select the subbasins from the Map View. After selecting the subbasins, press the [Enter] key or right-click and choose Done from the displayed context menu.
6. The Delete Subbasins dialog box will be redisplayed. The count of selected subbasins will be displayed in the Total selected read-only field.
   
7. Clicking the [OK] button displays the following confirmational dialog box.
   
8. Click the [Yes] button to confirm deletion or click the [No] button to abort the deletion.
   Note: The displayed confirmational dialog box can be turned off using the Confirm deletion checkbox option from the Options Backstage Page.

Similarly, the user can delete other HEC-HMS project elements using the corresponding Delete command.

Note: The Delete Cross Sections dialog box contains additional options that allow the user to delete the corresponding reaches and downstream connection junctions while deleting the selected cross sections.

Deleting Project Elements in GeoHECRAS

The user can delete various HEC-RAS elements such as River Reaches, 2D Flow Areas, Lateral Structures, River Junctions, Cross Sections, etc. using the corresponding Delete command.

For example, follow the steps below to manually delete cross sections using the Delete Cross Sections command:

1. From the Input ribbon menu, click on the Cross Sections dropdown menu and select the Delete Cross Sections command.
   Note: The user can press the [Ctrl+Shift+D] keys on the Map View to directly open the Delete Cross Sections dialog box.
2. The Delete Cross Sections dialog box will be displayed.
   
3. All the cross sections on the river stations and the associated rivers and reaches of the project will be displayed under the Select Cross Sections section.
   Note: If the cross sections are already selected on the Map View prior to running this command, the same entity will be shown selected within the dialog box.
4. The user can check the River Station checkbox entries from the dialog box to select the corresponding cross sections. The user can also click the [Select All] button to select all the River Station checkbox entries at once.
5. Click the [Pick] button to manually select cross sections from the Map View. Clicking the [Pick] button causes the dialog box to temporarily disappear and allows the user to manually select the cross sections from the Map View. Alternatively, click on the river reach and all associated cross sections will be selected. After selecting the cross sections or river reach, press the [Enter] key or right-click and choose Done from the displayed context menu.
6. The Delete Cross Sections dialog box will be redisplayed. The count of selected cross sections will be displayed in the Total selected read-only field.
   Note: Click the [Clear All] button to cancel all the previous selections and redo the entire process.
   
7. The Adjust upstream cross section flow lengths checkbox option is used to determine if the flow lengths will be adjusted for the cross section that is immediately upstream of a cross section being deleted.
8. After selecting the cross sections, clicking the [OK] button displays the following confirmational dialog box.
   
9. Click the [Yes] button to confirm deletion or click the [No] button to abort the deletion.

Similarly, the user can delete other HEC-RAS project elements using the corresponding Delete command.