Note: It is recommended
to place a fence around the area where the catchment area is to be calculated
to reduce the amount of time it takes. Additionally, the Catchment area element
is 2D, so it is recommended that the command be run in a 2D model.
Select the Analyze
Catchment as shown in the above image.
Locate the terrain model
in the dgn file as below.
Figure 2. Locate
Terrain Model
Uncheck the Display All
Catchments and Select the feature definition for the catchment.
Figure 3. Compute
Catchment Window
The Display All Catchment box displays all
catchments on the terrain model, whereas if it's not selected, it only displays
the catchment chosen by the user.
Select the required
catchment and then the function creates a line string passing through all the
data points for that catchment as shown below.
Used to calculate the
drainage/catchment areas from the surface.
