You define the cross-sectional shapes of link elements in their respective Property Editor as follows:

• Define the cross-sectional shape of a conduit section by entering data in the Physical section of the element’s Property Editor.
• Define the cross-sectional shape of an irregular conduit section by entering Station vs. Depth data in the Station-Depth Curve dialog box.
• Define the cross-sectional shape of an irregular channel or gutter section by entering Station vs. Elevation data in the Station-Elevation Curve dialog box.
• Define the cross-sectional shape of a trapezoidal channel or gutter section by entering data in the Physical section of the element’s Property Editor.
• Define the circular shape of a pressure pipe by entering data in the Physical section of the element’s Property Editor.

You access the curve dialog boxes in the selected link element’s Property Editor.

When the elevation of the water surface exceeds the highest elevation in the table, the last two unsubmerged points are linearly extrapolated to create a new, wider channel.

To define the cross-sectional shape of a link element:

1. Display the Property Editor for the link element:
2. For a conduit, gutter, or pressure pipe, click the link element in your model, or right-click the link element and select Properties from the shortcut menu.
3. For a conduit or a gutter, click the link element in your model, or right-click the link element and select Properties from the shortcut menu.
4. For a channel, click the connecting cross-section node in your model, or right-click the channel and select Properties from the shortcut menu.
5. In the Physical section of the Property Editor for the selected link element, define the cross-section of the selected link element as follows:
6. For a cross-section (channel link element) or a gutter, select either Trapezoidal Channel or Irregular Channel as the Section Type. For trapezoidal channels, enter data in the appropriate fields. If you select Irregular Channel, the Station-Elevation Curve field becomes available. Click the Ellipses (...) button next to the Station-Elevation Curve field to display the Station-Elevation Curve dialog box, then type values for station and elevation in the table.
7. For a conduit, select a section type, then enter data in the appropriate fields. If you select Irregular Channel as the Section Type, the Station-Depth Curve field becomes available. Click the Ellipses (...) button next to the Station-Depth Curve field to display the Station-Depth Curve dialog box, then type values for station and depth in the table.
8. For a pressure pipe, which always has a circular section shape, enter data in the appropriate fields.

Station-Elevation Curve/Depth Dialog Box

This dialog box allows you to enter Station vs. Elevation data for the cross-sectional shape of a cross-section or a gutter element, or Station vs. Depth data for the cross-sectional shape of a conduit.

The dialog box contains the station vs. elevation table along with the following controls:

	New	This button creates a new row in the station-elevation table.
	Delete	This button deletes the currently highlighted row from the station-elevation table.
	Report	Opens a print preview window containing a report that details the input data for this dialog box.
	Graph	Opens a graph window plotting the station-elevation curve defined by the points in the table

The table contains the following columns: