CCfits - HEASARC - NASA
CCfits - HEASARC - NASA
CCfits - HEASARC - NASA
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24.14 <strong>CCfits</strong>::FITS Class Reference 88<br />
24.14.2.5 <strong>CCfits</strong>::FITS::FITS ( const String & name, RWmode mode, const std::vector<<br />
String > & hduNames, const std::vector< std::vector< String > > & hduKeys,<br />
bool readDataFlag = false, const std::vector< String > & primaryKeys =<br />
std::vector(), const std::vector< int > & hduVersions =<br />
std::vector() )<br />
FITS read constructor in full generality.<br />
Parameters<br />
hduVersions an optional version number for each HDU to be read<br />
hduKeys an array of keywords for each HDU to be read. see above for other<br />
parameter definitions.<br />
24.14.2.6 <strong>CCfits</strong>::FITS::FITS ( const String & name, int bitpix, int naxis, long ∗ naxes )<br />
Constructor for creating new FITS objects containing images.<br />
This constructor is only called for creating new files (mode is not an argument) and<br />
creates a new primary HDU with the datatype & axes specified by bitpix, naxis, and<br />
naxes. The data are added to the new fits object and file by subsequent calls to FITS-<br />
::pHDU().write( )<br />
A file with a compressed image may be creating by appending to the end of the file<br />
name the same "[compress ...]" syntax specified in the cfitsio manual. Note however<br />
that the compressed image will be placed in the first extension and NOT in the primary<br />
HDU.<br />
If the filename corresponds to an existing file and does not start with the ’!’ character<br />
the construction will fail with a CantCreate exception.<br />
The arguments are:<br />
Parameters<br />
name The file to be written to disk<br />
bitpix the datatype of the primary image. bitpix may be one of the following<br />
CFITSIO constants: BYTE_IMG, SHORT_IMG, LONG_IMG, FLO-<br />
AT_IMG, DOUBLE_IMG, USHORT_IMG, ULONG_IMG. Note that<br />
if you send in a bitpix of USHORT_IMG or ULONG_IMG, <strong>CCfits</strong> will<br />
set HDU::bitpix() to its signed equivalent (SHORT_IMG or LONG_I-<br />
MG), and then set BZERO to 2 ∧ 15 or 2 ∧ 31.<br />
naxis the data dimension of the primary image<br />
naxes the array of axis lengths for the primary image. Ignored if naxis =0,<br />
i.e. the primary header is empty. extensions can be added arbitrarily to<br />
the file after this constructor is called. The constructors should write<br />
header information to disk:<br />
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