functions in newfits.i -

             _fPadFits(stream,address)  
 
   This function pads with blanks up to the next multiple of 2880 and  
   update address.  

             rescaled_data= _fRescale(data, bitpix, bscale, bzero, data_min=, data_max=)  
 
        Linearly rescale the values of input array DATA to fit into  
        integers with BITPIX bits per value (i.e., `char', `short' or  
        `long' for BITPIX being 8, 16 and 32 respectively).  
        Arguments BSCALE and BZERO are optional and purely outputs passed  
        by address.  Their value will be set so that:  
                DATA(i) = BZERO + BSCALE * RESCALED_DATA(i)  
        where the equality may not be exact due to rounding errors.  The  
        difference is however the smallest possible, i.e., less than  
        BSCALE / 2.  
        Keywords DATA_MIN and DATA_MAX may be used to supply the maximum  
        and minimum data values or to set brightness cutoffs.  
        Originally from fitsRescale in the Yorick fits.i distrib.  

             fitsDeleteCard(hdr,keyword)  
 
     Delete the card label "keyword" in hdr  
     Returns hdr  

             val = fitsHdrValue(hdr,keyword,&position,default=)  
 
   Returns the value associated with a keyword in a fits header.  
   Returns "Not a Keyword" if keyword is not found and no default  
   was given.  
   Mandatory parameters:  
   hdr:         (input) header, as returned by fitsRead (string array)  
   keyword:     (input) keyword name, string  
   Optional parameters:  
   position:    (output) position of keyword in header  
   Optional keyword:  
   default:     (input) default return value if keyword is not found  
                in the header.  

             val = fitsHdrValue(hdr,keyword,&position,default=)  
 
   Returns the value associated with a keyword in a fits header.  
   Returns "Not a Keyword" if keyword is not found and no default  
   was given.  
   Mandatory parameters:  
   hdr:         (input) header, as returned by fitsRead (string array)  
   keyword:     (input) keyword name, string  
   Optional parameters:  
   position:    (output) position of keyword in header  
   Optional keyword:  
   default:     (input) default return value if keyword is not found  
                in the header.  

            NT is_set(arg)  
 
     Returns 0 if element is void or equal to zero, 1 otherwise  
     F.Rigaut 2002/06/03