You should modify the default unit conversion rules if they are different for your business rules.
- Start ArcCatalog.
- Add the Unit Conversions Definition tool to a toolbar by completing the following steps:
- On the main menu, click Customize > Customize Mode.
The Customize dialog box appears.
- Click the Commands tab.
- Choose Nautical in the Categories list.
- Drag the Unit Conversions Definition button from the Commands list to a toolbar.
- Click Close.
- On the main menu, click Customize > Customize Mode.
- Click the Unit Conversions Definition button .
The Unit Conversions Definition dialog box appears.
- Click a row in the Unit Conversions Definition dialog box.
- Change the name by clicking in the Name cell and typing a new name.
- Change the factor value by clicking in the Factor cell and typing a new value.
- Choose the units for the FromUnits column by selecting from the available drop-down list.
- Choose the units for the ToUnits column by selecting from the available drop-down list.
- Click OK.