Fields items

For each catalogue field a record exists in the file DIRAVAR.DB that handle the description of the field characteristic. These are called fields items. Some of this items are not used in the current version of DIRA2, but were defined for future use. These are marked with 'RFU'.

The fields items are:

FIELD NAME
The name of the catalogue field.

START COL
Position of the first character of the field in the in the catalogue records

INT_FORMAT
Fortran format of the field (i.e. F6.2 )

EXT_FORMAT
Output format of the field (RFU)

PICTURES
Defines the output representation of the field (RFU)

UNIT
Units of the field values (i.e. METERS)

DESCRIPTION
Brief description of the field

TNULL
Define the value that must be recognized as empty field. In the numerical fields a blank string is recognized by DIRA2 as a empty field.

FIELD TYPE
When the field is a coordinate the type must be defined using the appropriate values. See section .

IND_FILE
File of pointer to the field. (RFU)


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