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Description:
The ADAM parameter specified by argument SCSPAR is used to
get a character string from the environment. A check is done to make sure that the string
obtained represents a supported Sky co-ordinate System (SCS). The user may include an
equinox specifier (see IRA_ISCS) in the text string to override the default reference equinox of
B1950. If an illegal SCS name is entered the user is reprompted. If DEFLT is given true, the
value of SCS on entry is used as a default for the parameter. The value of SCS is expanded
(both on entry and exit) to a full SCS name (an abbreviation of the SCS may be supplied
either by the calling routine or by the user instead of the full name).
Invocation
CALL
IRA_GTSCS( SCSPAR, DEFLT, SCS, STATUS )
Arguments
SCSPAR = CHARACTER
(
)
(Given)
The name of the ADAM parameter to use, which should be of type LITERAL.
DEFLT = LOGICAL (Given)
If true, then the value of argument SCS on entry is used
(after expansion) as the run-time default for the parameter.
SCS = CHARACTER
(
)
(Given and Returned)
On entry, specifies the default value for the parameter. On exit, contains the
full version of the sky co-ordinate system entered by the user. The supplied variable should have a
declared length given by symbolic constant IRA__SZSCS.
STATUS = INTEGER (Given and
Returned)
The global status.
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