Setting the field definitions

You can define the contents of the Attribute Manager table by choosing attributes in the table and by adding or removing records using the Table Definition window. You can also set the field properties for new and existing records, add new fields, or modify existing fields.

From the Edit menu in the Attribute Manager, click Table Definition.
In the Table Definition window, do any of the following:
- To hide a field, disable the appropriate check box in the Shown column.
- To change a field name, double-click the field in the Name column and type a new name.
- To add a field, click the Add button.
- To remove a field, select it and click the Remove button.
Type or choose data that will appear by default from the Default Value list box.
Type a value that will appear in fields that do not contain real data from the NoData Value list box. NoData values are not included in computations.
Choose one of the following options from the Read only list box:
- No: lets you change values in a field
- Yes: restricts changes to a field
Choose how you want to align data in a field from the Justification list box.
Type or choose the width of a field in characters in the Field size list box.
Type or choose a number of decimal places displayed in a field in the Decimal places list box.
Note: When using the Auto option for Scientific Notation, the Decimal places field actually represents significant digits.
Choose one of the following options from the Scientific notation list box:
- Yes: displays values in a field as scientific notations
- No: displays values in a field as regular numbers
- Auto: displays values as either regular numbers or scientific notations, depending on which is shorter; this is the default value.
Choose one of the following unit types for a field from the Angular units list box:
- Radians: expresses angles in radians, where 2 pi radians equals the 360 degrees in a circle (one radian equals approximately 57.29577951 degrees)
- Degrees: expresses angles in degrees, which is the angle between two adjacent radii measured at the center of the circle tht is divided along its radius into 360 equal parts
- Mils: expresses angles in mils, which measure angles where 1 mil equals 1/6,400 of a circle (1 mil equals approximately 0.05625 degrees)
- Grads: expresses angles in grads, which measure angles where 400 grads equals the 360 degrees in a circle (a 90-degree right angle equals 100 grads)
Choose a conversion type from the Conversion list box. If you choose New, type a factor in the Conversion Factor box.
Click OK.