This feature creates runoff surfaces based on the selected geometry and the direction of the start and end points of the geometries.
The selected geometry includes the point, face edge, surface edge, sketch, and face.
You can set the directions of the start and end points of the geometries to the points and edges that you select. You can adjust the directions. Enter the different values between the X axis and the Y axis. If you select a face, it is not necessary to select a direction.