DataOps Namespace Reference

A set of data operation functions. More...

Functions
int	getFilterId (const std::string &filterName)
	Extracts filter ID from the given filter name std::string.
int	calcJulianDay (int utDate)
	Returns a Julian Day number for the UT date given as YYYYMMDD.
std::string	getRunNoFromKey (const FitsFile &ff)
	Extract run number from the header.
std::string	getRunNoFromName (const string filename)
	Extract run number from the filename.
std::string	getFileTimeStamp (const FitsFile &ff)
	Extract file time stamp from the header.
std::string	getFrameType (const std::string &filename)
	Extract the frame type from the filename.
std::string	makeFrameID (const FitsFile &ff)
	Make frame ID from information in opened fitsfile.
double	calcQuadratic (double c0, double c1, double c2, double arg)
	Evaluates the quantity c0 + c1 * x + c2 * x^2.
void	calcCartesian (double alpha, double delta, double &cx, double &cy, double &cz)
double	calcAngsep (double alpha1, double delta1, double alpha2, double delta2)
void	calcPixSize (AstFrameSet *wcsinfo, double centre[2], double convfact[2], Numeric &xpixSize, Numeric &ypixSize)
	Calculates pixel size in x and y direction.

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Detailed Description

A set of data operation functions.

A set of functions implementing the nitty gritty of various data operations - these are then delegated to by higher up classes which determine their calling sequence

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Function Documentation

double DataOps::calcAngsep	(	double	alpha1,
		double	delta1,
		double	alpha2,
		double	delta2
	)

Calculates angular separation between the two spherical angular positions

References calcCartesian().

Referenced by calcPixSize(), and QuantitiesByAst< DataType >::doit().

void DataOps::calcCartesian	(	double	alpha,
		double	delta,
		double &	cx,
		double &	cy,
		double &	cz
	)

Calculates cartesian components for the polar angle alpha and the declination like angle delta measured from the x-y plane along the z-axis

Referenced by calcAngsep().

int DataOps::calcJulianDay

(

int

utDate

)

Returns a Julian Day number for the UT date given as YYYYMMDD.

Referenced by JulianDayNum< DataType >::doit().

void DataOps::calcPixSize	(	AstFrameSet *	wcsinfo,
		double	centre[2],
		double	convfact[2],
		Numeric &	xpixSize,
		Numeric &	ypixSize
	)

Calculates pixel size in x and y direction.

References calcAngsep().

Referenced by QuantitiesByAst< DataType >::doit(), HlRadii< DataType >::doit(), and HlRadCirc< DataType >::doit().

double DataOps::calcQuadratic	(	double	c0,
		double	c1,
		double	c2,
		double	arg
	)

Evaluates the quantity c0 + c1 * x + c2 * x^2.

std::string DataOps::getFileTimeStamp

(

const FitsFile &

ff

)

Extract file time stamp from the header.

References FitsFile::ARC_TIME, FitsFile::isTile(), FitsFile::movabsHdu(), and FitsFile::readKey().

Referenced by FileTimeStamp< DataType >::FileTimeStamp().

int DataOps::getFilterId

(

const std::string &

filterName

)

Extracts filter ID from the given filter name std::string.

Referenced by FilterID< DataType >::doit(), and FilterIDByFits< DataType >::FilterIDByFits().

std::string DataOps::getFrameType

(

const std::string &

filename

)

Extract the frame type from the filename.

References FrameTypeNames::arc, PreSuffixNames::arcSuffix, FrameTypeNames::bias, PreSuffixNames::biasSuffix, FrameTypeNames::calibration, PreSuffixNames::caliSuffix, PreSuffixNames::casuPrefix, FrameTypeNames::catalogue, PreSuffixNames::catSuffix, PreSuffixNames::CelestialSphere, FrameTypeNames::confidence, PreSuffixNames::confSuffix, PreSuffixNames::cpmSuffix, FrameTypeNames::dark, FrameTypeNames::deep, PreSuffixNames::deepSuffix, FrameTypeNames::defType, FrameTypeNames::difference, PreSuffixNames::diffSuffix, PreSuffixNames::edinPrefix, FrameTypeNames::filtered, PreSuffixNames::filtSuffix, FrameTypeNames::flat, ExpectNames::frameType, FrameTypeNames::interleaved, PreSuffixNames::leavSuffix, FrameTypeNames::mosaic, PreSuffixNames::mosaSuffix, FrameTypeNames::sky, FrameTypeNames::stack, PreSuffixNames::stackSuffix, PreSuffixNames::TheEarth, FrameTypeNames::tile, PreSuffixNames::tileSuffix, PreSuffixNames::VirtuallyNoPhotons, and PreSuffixNames::vistaPrefix.

Referenced by CalibratedVSAMagnitude< DataType >::doit2(), CalibratedMagnitude< DataType >::doit2(), and FrameType< DataType >::FrameType().

std::string DataOps::getRunNoFromKey

(

const FitsFile &

ff

)

Extract run number from the header.

References FitsFile::isTile(), FitsFile::movabsHdu(), FitsFile::OBSNUM, and FitsFile::readKey().

Referenced by TelRunNum< DataType >::TelRunNum().

std::string DataOps::getRunNoFromName

(

const string

filename

)

Extract run number from the filename.

References PreSuffixNames::CelestialSphere, and PreSuffixNames::vistaPrefix.

Referenced by TelRunNum< DataType >::TelRunNum().

std::string DataOps::makeFrameID

(

const FitsFile &

ff

)

Make frame ID from information in opened fitsfile.

References FitsFile::ARC_MFID, FitsFile::isTile(), FitsFile::movabsHdu(), and FitsFile::readKey().

Referenced by DirectFrameID< DataType >::DirectFrameID(), and IndirectFrameID< DataType >::doit().