CCfits - HEASARC - NASA

24.3 CCfits::Column Class Reference 55
columnIndex The column number
column- The column name, keyword TTYPEn
Name
type used for determining class of T in ColumnData, ColumnVector-
Data
format the column data format, TFORMn keyword
unit the column data unit, TUNITn keyword
p the Table pointer
rpt (optional) repeat count for the row ( == 1 for AsciiTables)
w the row width
comment comment to be added to the header.
24.3.3 Member Function Documentation
24.3.3.1 template void CCfits::Column::addNullValue ( T nullVal )
Set the TNULLn keyword for the column.
Only relevant for integer valued columns, TNULLn is the value used by cfitsio in undefined
processing. All entries in the table equal to an input "null value" are set equal
to the value of TNULLn. (For floating point columns a system NaN value is used).
24.3.3.2 const String & CCfits::Column::dimen ( ) const [inline]
return TDIMn keyword
represents dimensions of data arrays in vector columns. for scalar columns, returns a
default value.
24.3.3.3 const String & CCfits::Column::display ( ) const [inline]
return TDISPn keyword
TDISPn is suggested format for output of column data.
24.3.3.4 const String & CCfits::Column::format ( ) const [inline]
return TFORMn keyword
TFORMn specifies data format stored in disk file.
24.3.3.5 template bool CCfits::Column::getNullValue ( T ∗ nullVal ) const
Get the value of the TNULLn keyword for the column.
Only relevant for integer valued columns. If the TNULLn keyword is present, its value
will be written to ∗nullVal and the function returns true. If the keyword is not found or
its value is undefined, the function returns false and ∗nullVal is not modified.
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