Modifying an existing rounding rule interval

A rounding rule interval is defined by ranges of values and a precision. The range of values for the interval specifies a minimum and maximum value. Brackets [ ] are used if you want to include the minimum or maximum in the range; parentheses ( ) exclude the value. The precision defines what the value is rounded to (the nearest 0.1 [tenth], 0.5 [half or whole number], 1 [whole number], and so on).

注意:

If your rounding rule intervals are not large enough, you could experience errors when the application tries to round a value that is not found in any interval of the appropriate rounding rule.

步骤:

1. Start ArcCatalog.
2. Add the Rounding Rule Definition tool to a toolbar by completing the following steps:
   1. On the main menu, click Customize > Customize Mode.

      The Customize dialog box appears.

   2. Click the Commands tab.
   3. In the Categories list, choose Nautical.
   4. In the Commands list, click and drag the Rounding Rule Definition button to a toolbar.
   5. Click Close.
3. Click the Rounding Rule Definition button .

   The Rounding Rule Definition dialog box appears.
4. Click the Rounding Rules drop-down arrow and choose an existing rounding rule.
5. Click the record in the Rounding Rule Intervals area.
6. Click the first column for the value you want to modify and change the parameter for inclusive or exclusive:
   • [ ]—A bracket includes the value.
   • ( )—A parenthesis excludes the value.
7. Change the minimum value you want to modify by clicking in the appropriate cell.
8. Change the maximum value you want to modify by clicking in the appropriate cell.
9. Click the fourth column for the value you want to modify and change the parameter for inclusive or exclusive:
   • [ ]—A bracket includes the value.
   • ( )—A parenthesis excludes the value.
10. Change the precision value by clicking in the appropriate cell.
11. Repeat steps 5–10 for all values you want to modify.
12. Change the settings for the primary and secondary mappings.
13. Click OK.