Creating a longitude reference line (Aviation)

The Reference Longitude function creates a line that appears at the same longitudinal point as the coordinate you have specified. The line that is drawn in the map spans the entire extent of your data.

Steps:

1. Start ArcMap.
2. On the menu bar, click Customize > Toolbars > Production Feature Builder.
3. Click the Feature Builder button on the Production Feature Builder toolbar.

   The Feature Builder window appears.

   Tip:

   The Feature Builder window can be placed anywhere in ArcMap, or in the Table Of Contents window, with the aid of the arrows showing the possible placement positions.

4. If the scratch dataset has not been added to the table of contents, click the Add Scratch Data Layers button at the top of the Feature Builder window.

   The dataset is added to the map using the current spatial reference.

5. Choose Reference Longitude in the list on the Functions tab.

6. Define a coordinate for the start point of the polyline by doing one of the following:
   • Click the Pinprick tool on the Production Feature Builder toolbar and click on the map
   • Type the coordinates in the cells on the Input tab in the Coordinates area.
   Tip:

   To view the input coordinates on the map, double-click the row headers for each coordinate.

7. Click the Execute button .

A line appears at the coordinate's longitudinal point.