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 A Library for Handling
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Description: 
 Adds the definition
of a new column to the supplied table. Initially, the column is empty. Values may be added
subsequently using the methods of the 
KeyMap class.  
Synopsis 
 void astAddColumn( AstTable
                                                                                       
                                                                                       
this, const char
name, int type, int
ndim, int dims,
const char unit
)  
 Parameters: 
  this  
  name  
 The column name. Trailing
spaces are ignored (all other spaces are significant). The supplied string is
converted to upper case.  
  type  
 The data type associated with the column. See "
Applicability:" below.  
  ndim  
 The number of dimensions spanned by the values stored
in a single cell of the column. Zero if the column holds scalar values.  
  dims  
 An
array holding the the lengths of each of the axes spanned by the values stored in a
single cell of the column. Ignored if the column holds scalara values.  
  unit  
 A
string specifying the units of the column. Supply a blank string if the column is
unitless.  
    Applicability 
  Table  
 Tables can hold columns with any of the
following data types - AST__INTTYPE (for integer), AST__SINTTYPE (for short int),
AST__BYTETYPE (for unsigned bytes - i.e. unsigned chars), AST__DOUBLETYPE (for double
precision floating point), AST__FLOATTYPE (for single precision floating point),
AST__STRINGTYPE (for character string), AST__OBJECTTYPE (for AST 
Object pointer),
AST__POINTERTYPE (for arbitrary C pointer) or AST__UNDEFTYPE (for undefined
values created by 
astMapPutU).  
 FitsTables can hold columns with
any of the following data types - AST__INTTYPE (for integer), AST__SINTTYPE
(for short int), AST__BYTETYPE (for unsigned bytes - i.e. unsigned chars),
AST__DOUBLETYPE (for double precision floating point), AST__FLOATTYPE (for single
precision floating point), AST__STRINGTYPE (for character string).  
    Notes: 
 Copyright (C) 2021 East Asian Observatory
  -  ←Prev 
- AST
 A Library for Handling
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Coordinate Systems
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