Parse and return pieces of a time string. More...

#include <iTime.h>

Collaboration diagram for Isis::iTime:

Public Member Functions
	iTime ()
	Constructs an empty iTime object. More...

	iTime (const QString &time)
	Constructs a iTime object and initializes it to the time from the argument. More...

	iTime (const double time)
	Constructs a iTime object and initializes it to the time from the argument. More...

void	operator= (const QString &time)
	Changes the value of the iTime object. More...

void	operator= (const char *time)

void	operator= (const double time)

bool	operator>= (const iTime &time)
	Compare two iTime objects for greater than or equal. More...

bool	operator<= (const iTime &time)
	Compare two iTime objects for less than or equal. More...

bool	operator> (const iTime &time)
	Compare two iTime objects for greater than. More...

bool	operator< (const iTime &time)
	Compare two iTime objects for less than. More...

bool	operator!= (const iTime &time)
	Compare two iTime objects for inequality. More...

bool	operator== (const iTime &time)
	Compare two iTime objects for equality. More...

iTime	operator+ (const double &secondsToAdd) const

void	operator+= (const double &secondsToAdd)

iTime	operator- (const double &secondsToSubtract) const

double	operator- (const iTime &iTimeToSubtract) const

void	operator-= (const double &secondsToSubtract)

QString	YearString () const
	Returns the year portion of the time as a string. More...

int	Year () const
	Returns the year portion of the time as an int. More...

QString	MonthString () const
	Returns the month portion of the time as a string. More...

int	Month () const
	Returns the month portion of the time as an int. More...

QString	DayString () const
	Returns the dat portion of the time as a string. More...

int	Day () const
	Returns the day portion of the time as an int. More...

QString	HourString () const
	Returns the hour portion of the time as a string. More...

int	Hour () const
	Returns the hour portion of the time as an int. More...

QString	MinuteString () const
	Returns the minute portion of the time as a string. More...

int	Minute () const
	Returns the minute portion of the time as an int. More...

QString	SecondString (int precision=8) const
	Returns the second portion of the time as a string. More...

double	Second () const
	Returns the second portion of the time as a double. More...

QString	DayOfYearString () const
	Returns the day of year portion of the time as a string. More...

int	DayOfYear () const
	Returns the day of year portion of the time as an int. More...

QString	EtString () const
	Returns the ephemeris time (TDB) representation of the time as a string. More...

double	Et () const
	Returns the ephemeris time (TDB) representation of the time as a double. More...

QString	UTC (int precision=8) const
	Returns the internally stored time, formatted as a UTC time. More...

void	setEt (double et)

void	setUtc (QString utcString)

Static Public Member Functions
static QString	CurrentGMT ()
	Returns the current Greenwich Mean iTime The time is based on the system time, so it is only as accurate as the local system clock. More...

static QString	CurrentLocalTime ()
	Returns the current local time This time is taken directly from the system clock, so if the system clock is off, this will be, too. More...

Private Member Functions
void	LoadLeapSecondKernel ()
	Uses the Naif routines to load the most current leap second kernel. More...

Private Attributes
double	p_et
	The ephemeris representaion of the original string passed into the constructor or the operator= member. More...

Static Private Attributes
static bool	p_lpInitialized = false

Friends
iTime	operator+ (const double &secondsToAdd, iTime time)

iTime	operator- (const double &secondsToSubtract, iTime time)

Detailed Description

Parse and return pieces of a time string.

This class parses a date/time string into individual components. The input time string can be in a variety of formats (see the NAIF routine str2et_c). The components and different representation can then be returned using the member functions.

Author: 2003-10-24 Stuart Sides

History:: 2003-11-05 Stuart Sides - Fixed error in documentation

History:: 2003-12-03 Stuart Sides - Added comparison operators for (>=, <=, >, <, ==, and !=)

History:: 2003-12-09 Stuart Sides - Modified so all iTime objects will share the same leap second kernel. This means the leapsecond kernel will be loaded once and never unloaded. Other objects which use the leapsecond kernel should not unload it either.

History:: 2005-02-22 Elizabeth Ribelin - Modified file to support Doxygen documentation

History:: 2006-03-31 Elizabeth Miller - added UTC method

History:: 2006-10-02 Brendan George - Added CurrentLocalTime and CurrentGMT methods

History:: 2007-12-07 Kris Becker - Modifed the SecondString() method to always return fixed notation for fractions of a second of no more than 8 digits after the decimal point. It was returning scientific notation causing parsing errors (in NAIF, PostgreSQL TIMESTAMP fields, etc...)

History:: 2011-05-25 Janet Barrett and Steven Lambright - Added setUtc, setEt and addition operators

History:: 2015-07-21 Kristin Berry - Added NaifStatus::CheckErrors() to see if any NAIF errors were signaled. References #2248.

History:: 2018-03-15 Adam Goins - Removed deprecated function iTime::UnloadLeapSecondKernel(). Fixes #5325.

History:: 2019-06-15 Kristin Berry - Added a precision option to UTC to specify the precision of the output value. The default (old) precision is used if no argument is specified.

History:: 2021-02-17 Jesse Mapel - Added the ability to pass ISO 8601 basic format time strings to setUtc.

Definition at line 65 of file iTime.h.

Constructor & Destructor Documentation

◆ iTime() [1/3]

Isis::iTime::iTime ( )

Constructs an empty iTime object.

Definition at line 32 of file iTime.cpp.

◆ iTime() [2/3]

Isis::iTime::iTime ( const QString & time )

Constructs a iTime object and initializes it to the time from the argument.

Parameters

time	A time string formatted in standard UTC or similar format. Example:"2000/12/31 23:59:01.6789" or "2000-12-31T23:59:01.6789"

Definition at line 42 of file iTime.cpp.

◆ iTime() [3/3]

Isis::iTime::iTime ( const double time )

inline

Constructs a iTime object and initializes it to the time from the argument.

Parameters

time	An ephemeris time (ET).

Definition at line 76 of file iTime.h.

References LoadLeapSecondKernel(), and p_et.

Member Function Documentation

◆ CurrentGMT()

QString Isis::iTime::CurrentGMT ( )

static

Returns the current Greenwich Mean iTime The time is based on the system time, so it is only as accurate as the local system clock.

Returns: QString The Current GMT

Definition at line 497 of file iTime.cpp.

◆ CurrentLocalTime()

QString Isis::iTime::CurrentLocalTime ( )

static

Returns the current local time This time is taken directly from the system clock, so if the system clock is off, this will be, too.

Returns: QString The cutrrent local time

Definition at line 513 of file iTime.cpp.

Referenced by Isis::JigsawRunWidget::bundleFinished(), Isis::BundleAdjust::errorPropagation(), and Isis::BundleSolutionInfo::outputHeader().

◆ Day()

int Isis::iTime::Day ( ) const

Returns the day portion of the time as an int.

Returns: int

Definition at line 277 of file iTime.cpp.

References Isis::IString::ToInteger().

◆ DayOfYear()

int Isis::iTime::DayOfYear ( ) const

Returns the day of year portion of the time as an int.

Returns: int

Definition at line 380 of file iTime.cpp.

References Isis::IString::ToInteger().

◆ DayOfYearString()

QString Isis::iTime::DayOfYearString ( ) const

Returns the day of year portion of the time as a string.

Returns: string

Definition at line 371 of file iTime.cpp.

References Isis::toString().

◆ DayString()

QString Isis::iTime::DayString ( ) const

Returns the dat portion of the time as a string.

Returns: string

Definition at line 268 of file iTime.cpp.

References Isis::toString().

◆ Et()

double Isis::iTime::Et ( ) const

inline

Returns the ephemeris time (TDB) representation of the time as a double.

Definition at line 126 of file iTime.h.

References p_et.

Referenced by Isis::Chandrayaan1M3Camera::Chandrayaan1M3Camera(), Isis::ClipperNacRollingShutterCamera::ClipperNacRollingShutterCamera(), Isis::ClipperPushBroomCamera::ClipperPushBroomCamera(), Isis::ClipperWacFcCamera::ClipperWacFcCamera(), Isis::RadarSlantRangeMap::ComputeA(), Isis::Spice::computeSolarLongitude(), Isis::Spice::createCache(), Isis::CrismCamera::CrismCamera(), Isis::CTXCamera::CTXCamera(), Isis::DawnFcCamera::DawnFcCamera(), Isis::HiresCamera::HiresCamera(), Isis::HiriseCamera::HiriseCamera(), Isis::VimsGroundMap::Init(), Isis::VimsSkyMap::Init(), Isis::IssNACamera::IssNACamera(), Isis::IssWACamera::IssWACamera(), Isis::JunoCamera::JunoCamera(), Isis::KaguyaMiCamera::KaguyaMiCamera(), Isis::KaguyaTcCamera::KaguyaTcCamera(), Isis::LoHighCamera::LoHighCamera(), Isis::LoMediumCamera::LoMediumCamera(), Isis::LroNarrowAngleCamera::LroNarrowAngleCamera(), Isis::LroWideAngleCamera::LroWideAngleCamera(), Isis::LwirCamera::LwirCamera(), Isis::MarciCamera::MarciCamera(), Isis::MexHrscSrcCamera::MexHrscSrcCamera(), Isis::MiniRF::MiniRF(), Isis::MocNarrowAngleCamera::MocNarrowAngleCamera(), Isis::MocWideAngleCamera::MocWideAngleCamera(), Isis::MsiCamera::MsiCamera(), Isis::NewHorizonsLeisaCamera::NewHorizonsLeisaCamera(), Isis::NewHorizonsLorriCamera::NewHorizonsLorriCamera(), Isis::NewHorizonsMvicFrameCamera::NewHorizonsMvicFrameCamera(), Isis::NewHorizonsMvicTdiCamera::NewHorizonsMvicTdiCamera(), Isis::NirCamera::NirCamera(), Isis::OsirisRexOcamsCamera::OsirisRexOcamsCamera(), Isis::DawnVirCamera::readHouseKeeping(), Isis::RosettaVirtisCamera::readHouseKeeping(), Isis::RosettaVirtisCamera::readSCET(), Isis::RosettaOsirisCamera::RosettaOsirisCamera(), Isis::NewHorizonsMvicFrameCamera::SetBand(), Isis::LineScanCameraDetectorMap::SetDetector(), Isis::RadarPulseMap::SetDetector(), Isis::VariableLineScanCameraDetectorMap::SetDetector(), Isis::RadarSlantRangeMap::SetFocalPlane(), Isis::CameraDetectorMap::SetParent(), Isis::RollingShutterCameraDetectorMap::SetParent(), Isis::Spice::setTime(), Isis::RadarSlantRangeMap::SetUndistortedFocalPlane(), Isis::VikingCamera::ShutterOpenCloseTimes(), Isis::VoyagerCamera::ShutterOpenCloseTimes(), Isis::SsiCamera::SsiCamera(), Isis::Camera::StartEndEphemerisTimes(), Isis::ThemisIrCamera::ThemisIrCamera(), Isis::ThemisVisCamera::ThemisVisCamera(), Isis::AdvancedTrackTool::updateRow(), Isis::UvvisCamera::UvvisCamera(), Isis::VikingCamera::VikingCamera(), Isis::VimsCamera::VimsCamera(), and Isis::VoyagerCamera::VoyagerCamera().

◆ EtString()

QString Isis::iTime::EtString ( ) const

Returns the ephemeris time (TDB) representation of the time as a string.

See the Naif documentation "time.req" for more information.

Returns: string

Definition at line 396 of file iTime.cpp.

References Isis::toString().

◆ Hour()

int Isis::iTime::Hour ( ) const

Returns the hour portion of the time as an int.

Returns: int

Definition at line 301 of file iTime.cpp.

References Isis::IString::ToInteger().

◆ HourString()

QString Isis::iTime::HourString ( ) const

Returns the hour portion of the time as a string.

Returns: string

Definition at line 292 of file iTime.cpp.

References Isis::toString().

◆ LoadLeapSecondKernel()

void Isis::iTime::LoadLeapSecondKernel ( )

private

Uses the Naif routines to load the most current leap second kernel.

Definition at line 471 of file iTime.cpp.

References Isis::FileName::expanded(), Isis::PvlObject::findGroup(), and Isis::FileName::highestVersion().

Referenced by iTime().

◆ Minute()

int Isis::iTime::Minute ( ) const

Returns the minute portion of the time as an int.

Returns: int

Definition at line 325 of file iTime.cpp.

References Isis::IString::ToInteger().

◆ MinuteString()

QString Isis::iTime::MinuteString ( ) const

Returns the minute portion of the time as a string.

Returns: string

Definition at line 316 of file iTime.cpp.

References Isis::toString().

◆ Month()

int Isis::iTime::Month ( ) const

Returns the month portion of the time as an int.

Returns: int

Definition at line 253 of file iTime.cpp.

References Isis::IString::ToInteger().

◆ MonthString()

QString Isis::iTime::MonthString ( ) const

Returns the month portion of the time as a string.

Returns: string

Definition at line 244 of file iTime.cpp.

References Isis::toString().

◆ operator!=()

bool Isis::iTime::operator!= ( const iTime & time )

Compare two iTime objects for inequality.

Parameters

time	The iTime object to be compared to "this"

Returns: bool

Definition at line 150 of file iTime.cpp.

References p_et.

◆ operator<()

bool Isis::iTime::operator< ( const iTime & time )

Compare two iTime objects for less than.

Parameters

time	The iTime object to be compared to "this"

Returns: bool

Definition at line 139 of file iTime.cpp.

References p_et.

◆ operator<=()

bool Isis::iTime::operator<= ( const iTime & time )

Compare two iTime objects for less than or equal.

Parameters

time	The iTime object to be compared to "this"

Returns: bool

Definition at line 116 of file iTime.cpp.

References p_et.

◆ operator=()

void Isis::iTime::operator= ( const QString & time )

Changes the value of the iTime object.

Parameters

time	A time string formatted in standard UTC or similar format. Example:"2000/12/31 23:59:01.6789" or "2000-12-31T23:59:01.6789"

Definition at line 66 of file iTime.cpp.

◆ operator==()

bool Isis::iTime::operator== ( const iTime & time )

Compare two iTime objects for equality.

Parameters

time	The iTime object to be compared to "this"

Returns: bool

Definition at line 161 of file iTime.cpp.

References p_et.

◆ operator>()

bool Isis::iTime::operator> ( const iTime & time )

Compare two iTime objects for greater than.

Parameters

time	The iTime object to be compared to "this"

Returns: bool

Definition at line 127 of file iTime.cpp.

References p_et.

◆ operator>=()

bool Isis::iTime::operator>= ( const iTime & time )

Compare two iTime objects for greater than or equal.

Parameters

time	The iTime object to be compared to "this"

Returns: bool

Definition at line 105 of file iTime.cpp.

References p_et.

◆ Second()

double Isis::iTime::Second ( ) const

Returns the second portion of the time as a double.

Returns: double

Definition at line 356 of file iTime.cpp.

References Isis::IString::ToDouble().

◆ SecondString()

QString Isis::iTime::SecondString ( int precision = 8 ) const

Returns the second portion of the time as a string.

Returns: string

Definition at line 340 of file iTime.cpp.

◆ UTC()

QString Isis::iTime::UTC ( int precision = 8 ) const

Returns the internally stored time, formatted as a UTC time.

Returns: string The internalized time, in UTC format

Definition at line 405 of file iTime.cpp.

Referenced by Isis::AdvancedTrackTool::updateRow().

◆ Year()

int Isis::iTime::Year ( ) const

Returns the year portion of the time as an int.

Returns: int

Definition at line 229 of file iTime.cpp.

References Isis::IString::ToInteger().

◆ YearString()

QString Isis::iTime::YearString ( ) const

Returns the year portion of the time as a string.

Returns: string

Definition at line 220 of file iTime.cpp.

References Isis::toString().

Member Data Documentation

◆ p_et

double Isis::iTime::p_et

private

The ephemeris representaion of the original string passed into the constructor or the operator= member.

Definition at line 138 of file iTime.h.

Referenced by Et(), iTime(), operator!=(), operator<(), operator<=(), operator==(), operator>(), and operator>=().

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

src/base/objs/iTime/iTime.h
src/base/objs/iTime/iTime.cpp

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ iTime() [1/3]

◆ iTime() [2/3]

◆ iTime() [3/3]

Member Function Documentation

◆ CurrentGMT()

◆ CurrentLocalTime()

◆ Day()

◆ DayOfYear()

◆ DayOfYearString()

◆ DayString()

◆ Et()

◆ EtString()

◆ Hour()

◆ HourString()

◆ LoadLeapSecondKernel()

◆ Minute()

◆ MinuteString()

◆ Month()

◆ MonthString()

◆ operator!=()

◆ operator<()

◆ operator<=()

◆ operator=()

◆ operator==()

◆ operator>()

◆ operator>=()

◆ Second()

◆ SecondString()

◆ UTC()

◆ Year()

◆ YearString()

Member Data Documentation

◆ p_et