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 A Library for Handling
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Description: 
 This is a
family of functions which set a specified attribute value for an 
Object
using one of several different data types. The type is selected by replacing
X
in the function name by C, D, F, I or L, to supply a value in const
char
(i.e. string), double, float, int, or long format, respectively.
If possible, the value you supply is converted to the type of the attribute.
If conversion is not possible, an error will result.  
Synopsis 
 void
astSetX(
AstObject this,
const char attrib,
Xtype
value )  
 Parameters: 
  this  
 Pointer to the Object.  
  attrib  
 Pointer to a
null-terminated character string containing the name of the attribute whose value is to be
set.  
  value  
 The value to be set for the attribute, in the data type corresponding to
X
(or, in the case of astSetC, a pointer to a null-terminated character string containing
this value).  
    Applicability 
  Object  
 These functions apply to all Objects.  
   
Examples: 
  astSetI( frame, " Preserve" , 1 );  
Sets the Preserve attribute value for
Object" frame" to 1.    astSetC( plot, " Format(1)" , " %.2g" );  
Sets the Format(1)
attribute value for Object" plot" to the character string " %.2g" .      Notes: 
 Copyright (C) 2021 East Asian Observatory
  -  ←Prev 
- AST
 A Library for Handling
 World
Coordinate Systems
 in Astronomy
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