Functional units (FUs) refer to areas of particular hydrological response. In Source, Functional Unit classes are initially defined in the Geographic Wizard (Specify functional units). This page explains how to manipulate FU areas outside the Geographic Wizard.
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Note: Using filters in the Functional Unit Area Configuraiton dialog is similar to using them in the Feature Table (see Working with filters in the Feature Table). However, there is also a subcatchment filter to help you find subcatchments either by name or by using the subcatchment map, see Subcatchment filter. |
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Figure 2. Assigning FU areas using a land use raster
Figure 3. Assigning FU areas using a land use raster, assign mapping
Modify Functional Units
Functional Unit names now can be modified even though they have been assigned in the Geographic Wizard. The functions for FU modification include add, delete, and rename using the Edit » Functional Units » List menu item, which will display the UI of Name Functional Units (Figure 4).
Figure 4. Modify FUs
Add FUs
The user can put the new FU name in Name Textbox (1 in Figure 4), then click on Add button (2 in Figure 4), the new FU will be added to the list of FUs (3 in Figure 4). Click OK button to save the modification.
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