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Project/ Watershed/ Analysis Coverage

Main applications

  • When calculating the runoff model, you can optionally set the watershed analysis extent.

Figure: Watershed analysis extent

Table: Watershed Analysis Area Context Menu Items and Functions

Context menu items function
Create a new analysis area Create a new analysis extent area.
Delete All Analysis Areas Delete all analysis extent areas.

An example of not specifying an analysis extent is shown below and explained by comparison.

Create a new analysis area

  1. Specify the area on the map where you want to create the analysis area with a mouse click.

    Figure: Area designation to create an analysis area

  2. To revert to the previous state, right-click or[BackSpace] press the key.

  3. To cancel the creation,[Esc] press the key.

  4. Confirm with double click or enter.

  5. Set conditions related to the analysis range on the Properties screen.

    Figure: Properties screen of analysis area settings

    Table: Analysis Area Property Names and Settings

    Property Name What to set
    name Enter a name of your choice.
    Area (m^2) Displays the area of the specified analysis area on the map.
    valid Enable/disable settings.
    The initial value is True.
    True: Enabled:
    False: Disabled
    Line Style Specify the line style (line type/line width/line color) to be displayed on the map.
    The initial values are as follows:
    Line Type: Solid
    Line Width: 2px Line
    Color: 128,128,192
  6. If you run the simulation with the analysis area specified, the watershed analysis is aborted.

    Figure: Running a simulation with a specified analysis area

Delete All Analysis Areas

When you select the menu, a confirmation message appears. [Yes] Click the button to delete all analysis areas.

Figure: Delete all analysis areas

Last update: 2023-03-20