CCfits - HEASARC - NASA
CCfits - HEASARC - NASA
CCfits - HEASARC - NASA
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24.32 <strong>CCfits</strong>::HDU Class Reference 111<br />
• virtual void makeThisCurrent () const<br />
move the fitsfile pointer to this current HDU.<br />
• bool operator!= (const HDU &right) const<br />
inequality operator<br />
• bool operator== (const HDU &right) const<br />
equality operator<br />
• FITSBase ∗ parent () const<br />
return reference to the pointer representing the FITSBase object containing the HDU<br />
• void readAllKeys ()<br />
read all of the keys in the header<br />
• template<br />
void readKey (const String &keyName, T &val)<br />
read a keyword of specified type from the header of a disk FITS file and return its<br />
value.<br />
• template<br />
void readKeys (std::vector< String > &keyNames, std::vector< T > &vals)<br />
read a set of specified keywords of the same data type from the header of a disk FITS<br />
file and return their values<br />
• virtual double scale () const<br />
return the BSCALE keyword value<br />
• virtual void scale (double value)<br />
set the BSCALE keyword value for images (see warning for images of int type)<br />
• void suppressScaling (bool toggle=true)<br />
turn off image scaling regardless of the BSCALE and BZERO keyword values<br />
• void updateChecksum ()<br />
update the CHECKSUM keyword value, assuming DATASUM exists and is correct<br />
• std::pair< int, int > verifyChecksum () const<br />
verify the HDU by computing the checksums and comparing them with the CHECK-<br />
SUM/DATASUM keywords<br />
• void writeChecksum ()<br />
compute and write the DATASUM and CHECKSUM keyword values<br />
• void writeComment (const String &comment="Generic Comment")<br />
write a comment string.<br />
• void writeDate ()<br />
write a date string to ∗this.<br />
• void writeHistory (const String &history="Generic History String")<br />
write a history string.<br />
• virtual double zero () const<br />
return the BZERO keyword value<br />
• virtual void zero (double value)<br />
set the BZERO keyword value for images (see warning for images of int type)<br />
Generated on Tue Dec 6 2011 16:12:51 for <strong>CCfits</strong> by Doxygen