- In the
Stage Storage dialog box, under
Basin Definition Options:
- Click
Define Basin From Entity.
- Click
Define Basin.
- In the
Define Basin From Entities dialog box, click
Define Basin From Polylines.
- Optionally, if you want to extract polylines from surface contours to define the basin, click
Extract Objects From Surface, and then select the surface in the drawing and press Enter. When you click
Define in the
Define Basin From Entities dialog box, you can then select the polylines that were created to define the basin.
Note: Whereas the Define Basin From Surface Contours option uses all of the surface contours for the input data, you can use the
Extract Objects From Surface option to extract data from selected contours, for example, the contours that define a depression.
- Optionally, clear
Change Selected Entities To The Following Layer.
If you select
Change Selected Entities To The Following Layer, for
Basin Polyline Layer, enter the layer to which you want the polylines to be moved.
- Select
Delete Unselected Entities On Selected Layer.
Tip: This option cleans up the drawing by deleting any polylines that were created by the
Extract Entities From Surface button, but which you do not select with the
Define button.
- Click
Define.
- Select at least two polylines. In the following illustration a third polyline (3) is included. Either right-click or press Enter.
Note: The polylines must be closed lwpolylines (created with the PLINE command, for example).
The polyline data is extracted and listed in the
Stage Storage Volume Table.
- Save the results.