lsst::afw::coord::Observatory Class Reference

Hold the location of an observatory. More...

#include <Observatory.h>

Public Member Functions
	Observatory (lsst::geom::Angle const longitude, lsst::geom::Angle const latitude, double const elevation)
	Construct an Observatory with longitude and latitude specified as lsst::geom::Angle.
	Observatory (std::string const &longitude, std::string const &latitude, double const elevation)
	Construct an Observatory with longitude and latitude specified as sexagesimal strings.
	~Observatory () noexcept
	Observatory (Observatory const &) noexcept
	Observatory (Observatory &&) noexcept
Observatory &	operator= (Observatory const &) noexcept
Observatory &	operator= (Observatory &&) noexcept
void	setLongitude (lsst::geom::Angle const longitude)
	set telescope longitude
void	setLatitude (lsst::geom::Angle const latitude)
	set telescope latitude (positive values are E of Greenwich)
void	setElevation (double const elevation)
	set telescope elevation (meters above reference spheroid)
lsst::geom::Angle	getLongitude () const noexcept
	get telescope longitude (positive values are E of Greenwich)
lsst::geom::Angle	getLatitude () const noexcept
	get telescope latitude
double	getElevation () const noexcept
	get telescope elevation (meters above reference spheroid)
std::string	toString () const
	get string representation
bool	operator== (Observatory const &rhs) const noexcept
bool	operator!= (Observatory const &rhs) const noexcept
std::size_t	hash_value () const noexcept
	Return a hash of this object.

Detailed Description

Hold the location of an observatory.

Definition at line 43 of file Observatory.h.

Constructor & Destructor Documentation

Observatory() [1/4]

lsst::afw::coord::Observatory::Observatory	(	lsst::geom::Angle const	longitude,
		lsst::geom::Angle const	latitude,
		double const	elevation )

Construct an Observatory with longitude and latitude specified as lsst::geom::Angle.

Parameters

[in]	longitude	telescope longitude (positive values are E of Greenwich)
[in]	latitude	telescope latitude
[in]	elevation	telescope elevation (meters above reference spheroid)

Definition at line 39 of file Observatory.cc.

        : _latitude(latitude), _longitude(longitude), _elevation(elevation) {}

Observatory() [2/4]

lsst::afw::coord::Observatory::Observatory	(	std::string const &	longitude,
		std::string const &	latitude,
		double const	elevation )

Construct an Observatory with longitude and latitude specified as sexagesimal strings.

Parameters

[in]	longitude	telescope longitude (dd:mm:ss.s, positive values are E of Greenwich)
[in]	latitude	telescope latitude (dd:mm:ss.s)
[in]	elevation	telescope elevation (meters above reference spheroid)

~Observatory()

lsst::afw::coord::Observatory::~Observatory ( )

defaultnoexcept

Observatory() [3/4]

lsst::afw::coord::Observatory::Observatory ( Observatory const & )

defaultnoexcept

Observatory() [4/4]

lsst::afw::coord::Observatory::Observatory ( Observatory && )

defaultnoexcept

Member Function Documentation

getElevation()

double lsst::afw::coord::Observatory::getElevation ( ) const

inlinenoexcept

get telescope elevation (meters above reference spheroid)

Definition at line 82 of file Observatory.h.

{ return _elevation; }

getLatitude()

lsst::geom::Angle lsst::afw::coord::Observatory::getLatitude ( ) const

noexcept

get telescope latitude

Definition at line 52 of file Observatory.cc.

{ return _latitude; }

getLongitude()

lsst::geom::Angle lsst::afw::coord::Observatory::getLongitude ( ) const

noexcept

get telescope longitude (positive values are E of Greenwich)

Definition at line 50 of file Observatory.cc.

{ return _longitude; }

hash_value()

std::size_t lsst::afw::coord::Observatory::hash_value ( ) const

inlinenoexcept

Return a hash of this object.

Definition at line 103 of file Observatory.h.

                                          {
        // Completely arbitrary seed
        return cpputils::hashCombine(17, _latitude.wrapCtr(), _longitude.wrapCtr(), _elevation);
    }

operator!=()

bool lsst::afw::coord::Observatory::operator!= ( Observatory const & rhs ) const

inlinenoexcept

Definition at line 100 of file Observatory.h.

{ return !(*this == rhs); }

operator=() [1/2]

Observatory & lsst::afw::coord::Observatory::operator= ( Observatory && )

defaultnoexcept

operator=() [2/2]

Observatory & lsst::afw::coord::Observatory::operator= ( Observatory const & )

defaultnoexcept

operator==()

bool lsst::afw::coord::Observatory::operator== ( Observatory const & rhs ) const

inlinenoexcept

Definition at line 87 of file Observatory.h.

                                                           {
        // Observatory may be initialized to NaN values as a placeholder, or to indicate "unknown".
        auto deltaLongitude = std::isnan(_latitude.asRadians()) && std::isnan(rhs._latitude.asRadians())
                                      ? 0.0 * lsst::geom::degrees
                                      : (_latitude - rhs._latitude).wrapCtr();
        auto deltaLatitude = std::isnan(_longitude.asRadians()) && std::isnan(rhs._longitude.asRadians())
                                     ? 0.0 * lsst::geom::degrees
                                     : (_longitude - rhs._longitude).wrapCtr();
        return (deltaLongitude == 0.0 * lsst::geom::degrees) &&
               (deltaLatitude == 0.0 * lsst::geom::degrees) &&
               ((std::isnan(_elevation) && std::isnan(rhs._elevation)) ||
                (_elevation - rhs._elevation) == 0.0);
    }

setElevation()

void lsst::afw::coord::Observatory::setElevation

(

double const

elevation

)

set telescope elevation (meters above reference spheroid)

Definition at line 58 of file Observatory.cc.

{ _elevation = elevation; }

setLatitude()

void lsst::afw::coord::Observatory::setLatitude

(

lsst::geom::Angle const

latitude

)

set telescope latitude (positive values are E of Greenwich)

Definition at line 54 of file Observatory.cc.

{ _latitude = latitude; }

setLongitude()

void lsst::afw::coord::Observatory::setLongitude

(

lsst::geom::Angle const

longitude

)

set telescope longitude

Definition at line 56 of file Observatory.cc.

{ _longitude = longitude; }

toString()

std::string lsst::afw::coord::Observatory::toString

(

)

const

get string representation

Definition at line 60 of file Observatory.cc.

                                      {
    // Follow ISO 6709 ordering and sign convention.
    return (boost::format("%gN, %gE  %g") % getLatitude().asDegrees() % getLongitude().asDegrees() %
            getElevation())
            .str();
}

---

The documentation for this class was generated from the following files:

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-12.0.0/Linux/afw/g083dd6704c+2e189452a7/include/lsst/afw/coord/Observatory.h
• /j/snowflake/release/lsstsw/stack/lsst-scipipe-12.0.0/Linux/afw/g083dd6704c+2e189452a7/src/coord/Observatory.cc