This class is designed to encapsulate the concept of a Latitude. More...

#include <Latitude.h>

Inheritance diagram for Isis::Latitude:

Collaboration diagram for Isis::Latitude:

Public Types
enum	ErrorChecking { ThrowAllErrors = 0, AllowPastPole }
	Some user-configurable error checking parameters. More...

enum	CoordinateType { Planetocentric, Planetographic }
	These are the latitude coordinate systems. More...

enum	Units { Degrees, Radians }
	The set of usable angle measurement units. More...

Public Member Functions
	Latitude ()
	Create a blank Latitude object without Planetographic support. More...

	Latitude (double latitude, Angle::Units latitudeUnits, ErrorChecking errors=AllowPastPole)
	Create and initialize a Latitude value without planetographic support. More...

	Latitude (Angle latitude, ErrorChecking errors=AllowPastPole)
	Create and initialize a Latitude value in the planetocentric domain within the given angle. More...

	Latitude (Angle latitude, PvlGroup mapping, ErrorChecking errors=ThrowAllErrors)
	Create and initialize a latitude value using the mapping group's latitude units and radii. More...

	Latitude (double latitude, PvlGroup mapping, Angle::Units latitudeUnits, ErrorChecking errors=ThrowAllErrors)
	Create and initialize a latitude value using the latitude units and the mapping group's radii. More...

	Latitude (double latitude, Distance equatorialRadius, Distance polarRadius, CoordinateType latType=Planetocentric, Angle::Units latitudeUnits=Angle::Radians, ErrorChecking errors=ThrowAllErrors)
	Create and initialize a Latitude value with planetographic support. More...

	Latitude (const Latitude &latitudeToCopy)
	This copies the given latitude exactly. More...

	~Latitude ()
	This cleans up the Latitude class. More...

double	planetocentric (Angle::Units units=Angle::Radians) const
	Get the latitude in the planetocentric (universal) coordinate system. More...

void	setPlanetocentric (double latitude, Angle::Units units=Angle::Radians)
	Set the latitude given a value in the Planetocentric coordinate system. More...

double	planetographic (Angle::Units units=Angle::Radians) const
	Get the latitude in the planetographic coordinate system. More...

void	setPlanetographic (double latitude, Angle::Units units=Angle::Radians)
	Set the latitude given a value in the Planetographic coordinate system. More...

ErrorChecking	errorChecking () const
	Get the error checking status. More...

void	setErrorChecking (ErrorChecking errors)
	Set the error checking status. More...

bool	inRange (Latitude min, Latitude max) const
	Checks if this latitude value is within the given range. More...

Latitude &	operator= (const Latitude &latitudeToCopy)
	This assigns another latitude to this one - making this latitude an exact duplicate of the other. More...

Latitude	add (Angle angleToAdd, PvlGroup mapping)
	Adds an angle to this latitude. More...

Latitude	add (Angle angleToAdd, Distance equatorialRadius, Distance polarRadius, CoordinateType latType)
	Adds another latitude to this one. More...

bool	isValid () const
	This indicates whether we have a legitimate angle stored or are in an unset, or invalid, state. More...

Angle	operator+ (const Angle &angle2) const
	Add angle value to another. More...

Angle	operator- (const Angle &angle2) const
	Subtract angle value from another and return the resulting angle. More...

Angle	operator* (double value) const
	Multiply this angle by a double and return the resulting angle. More...

Angle	operator* (int value) const
	Multiply this angle by an integer and return the resulting angle. More...

Angle	operator/ (double value) const
	Divide this angle by a double. More...

double	operator/ (Angle value) const
	Divide this angle by another angle and return the ratio. More...

Angle	operator/ (int value) const
	Divide this angle by an integer and return the resulting angle. More...

bool	operator< (const Angle &angle2) const
	Test if the other angle is less than the current angle. More...

bool	operator> (const Angle &angle2) const
	Test if the other angle is greater than the current angle. More...

void	operator+= (const Angle &angle2)
	Add angle value to another as double and replace original. More...

void	operator-= (const Angle &angle2)
	Subtract angle value from another and set this instance to the resulting angle. More...

void	operator*= (double value)
	Multiply this angle by a double and set this instance to the resulting angle. More...

void	operator/= (double value)
	Divide this angle by a double and return the resulting angle. More...

bool	operator== (const Angle &angle2) const
	Test if another angle is equal to this angle. More...

bool	operator!= (const Angle &angle2) const
	Test if another angle is not equal to this angle. More...

bool	operator<= (const Angle &angle2) const
	Test if the other angle is less than or equal to the current angle. More...

bool	operator>= (const Angle &angle2) const
	Test if the other angle is greater than or equal to the current angle. More...

double	radians () const
	Convert an angle to a double. More...

double	degrees () const
	Get the angle in units of Degrees. More...

void	setRadians (double radians)
	Set the angle in units of Radians. More...

void	setDegrees (double degrees)
	Set the angle in units of Degrees. More...

virtual QString	toString (bool includeUnits=true) const
	Get the angle in human-readable form. More...

double	unitWrapValue (const Units &unit) const
	Return wrap value in desired units. More...

virtual double	angle (const Units &unit) const
	Return angle value in desired units. More...

Static Public Member Functions
static Angle	fullRotation ()
	Makes an angle to represent a full rotation (0-360 or 0-2pi). More...

Protected Member Functions
virtual void	setAngle (const double &angle, const Angle::Units &units)
	Same as planetocentric. More...

Detailed Description

This class is designed to encapsulate the concept of a Latitude.

This is used primarily for surface points but is also a general purpose class. This class has error checking for past the poles. This adds the concept of 90/-90 and planetographic to the Angle class.

Author: 2010-10-13 Steven Lambright

Member Enumeration Documentation

◆ CoordinateType

enum Isis::Latitude::CoordinateType

These are the latitude coordinate systems.

The universal system is Planetocentric and this class is heavily geared towards using them. If you wish to use Planetographic, planetary radii must be provided and at the moment latitudes past 90 aren't supported in Planetographic.

Enumerator

Planetocentric

This is the universal (and default) latitude coordinate system.

Latitudes in this system are the angle from the the equatorial plane (the line at 0 degrees latitude) to the requested latitude.

Planetographic

This is a secondary coordinate system for latitudes.

Latitudes in this system are angle between the equatorial plane and the perpendicular to the surface at the point. Conceptually you draw the perpendicular to the surface back to the equatorial plane and the angle created is the planetographic latitude. This doesn't differ from Planetocentric on a sphere. These latitudes require the planetary radii to work with them at all, since the radii affect the latitude values themselves.

◆ ErrorChecking

enum Isis::Latitude::ErrorChecking

Some user-configurable error checking parameters.

This is meant to be used as a bit flag.

Example: Latitude(95, Angle::Degrees, Latitude::AllowPastPole) This will allow latitudes past 90 and not throw an exception.

Latitude(95, Angle::Degrees, Latitude::AllowPastPole | Latitude::ThrowAllErrors) This will allow latitudes past 90 still and not throw an exception.

Latitude(95, Angle::Degrees, Latitude::ThrowAllErrors) This will throw an exception.

Latitude(95, Angle::Degrees) This will throw an exception.

Enumerator
ThrowAllErrors	Throw an exception if any problems are found.
AllowPastPole	Don't throw an exception if a latitude beyond -90/90 is found.

◆ Units

enum Isis::Angle::Units

inherited

The set of usable angle measurement units.

Enumerator

Degrees

Degrees are generally considered more human readable, 0-360 is one circle, however most math does not use this unit.

Use these for displaying to the user and accepting input from the user.

Radians

Radians are generally used in mathematical equations, 0-2*PI is one circle, however these are more difficult for users to understand when displayed since they have PI in them.

This is the default unit and is necessary for most math library calls.

Constructor & Destructor Documentation

◆ Latitude() [1/7]

Isis::Latitude::Latitude ( )

Create a blank Latitude object without Planetographic support.

References AllowPastPole.

Referenced by add(), and planetographic().

◆ Latitude() [2/7]

Isis::Latitude::Latitude	(	double	latitude,
		Angle::Units	latitudeUnits,
		ErrorChecking	errors = `AllowPastPole`
	)

Create and initialize a Latitude value without planetographic support.

Parameters

latitude	The latitude value this instance will represent, in the planetocentric coordinate system
latitudeUnits	The angular units of the latitude value (degs, rads)
errors	Error checking conditions

See also: ErrorChecking; CoordinateType

References setPlanetocentric().

◆ Latitude() [3/7]

Isis::Latitude::Latitude	(	Angle	latitude,
		ErrorChecking	errors = `AllowPastPole`
	)

Create and initialize a Latitude value in the planetocentric domain within the given angle.

Parameters

latitude	The latitude value this instance will represent
errors	Error checking conditions

References Isis::Angle::Radians, Isis::Angle::radians(), and setPlanetocentric().

◆ Latitude() [4/7]

Isis::Latitude::Latitude	(	Angle	latitude,
		PvlGroup	mapping,
		ErrorChecking	errors = `ThrowAllErrors`
	)

Create and initialize a latitude value using the mapping group's latitude units and radii.

Parameters

latitude	The latitude value this instance will represent, in the mapping group's units
mapping	A mapping group
errors	Error checking conditions

Exceptions

IException::Unknown	"Unable to create Latitude object from given mapping group."
IException::Programmer	"Latitude type is not recognized"

See also: ErrorChecking; CoordinateType

References _FILEINFO_, Isis::PvlContainer::hasKeyword(), Isis::Distance::Meters, Isis::IException::Programmer, Isis::Angle::Radians, Isis::Angle::radians(), Isis::Target::radiiGroup(), setPlanetocentric(), setPlanetographic(), Isis::toDouble(), and Isis::IException::Unknown.

◆ Latitude() [5/7]

Isis::Latitude::Latitude	(	double	latitude,
		PvlGroup	mapping,
		Angle::Units	latitudeUnits,
		ErrorChecking	errors = `ThrowAllErrors`
	)

Create and initialize a latitude value using the latitude units and the mapping group's radii.

Parameters

latitude	The latitude value this instance will represent, in the mapping group's units
mapping	A mapping group
latitudeUnits	The angular units of the latitude value (degs, rads)
errors	Error checking conditions

Exceptions

IException::Unknown	"Unable to create Latitude object from given mapping group."
IException::Programmer	"Latitude type is not recognized"

See also: ErrorChecking; CoordinateType

References _FILEINFO_, Isis::PvlContainer::hasKeyword(), Isis::Distance::Meters, Isis::IException::Programmer, Isis::Target::radiiGroup(), setPlanetocentric(), setPlanetographic(), Isis::toDouble(), and Isis::IException::Unknown.

◆ Latitude() [6/7]

Isis::Latitude::Latitude	(	double	latitude,
		Distance	equatorialRadius,
		Distance	polarRadius,
		CoordinateType	latType = `Planetocentric`,
		Angle::Units	latitudeUnits = `Angle::Radians`,
		ErrorChecking	errors = `ThrowAllErrors`
	)

Create and initialize a Latitude value with planetographic support.

Parameters

latitude	The latitude value this instance will represent, in planetocentric
equatorialRadius	Radius of the target (planet) at the equator
polarRadius	Radius of the target (planet) at the poles
latType	The coordinate system of the latitude parameter
latitudeUnits	The angular units of the latitude value (degs, rads)
errors	Error checking conditions

Exceptions

IException::Programmer "Enumeration value [latType] is not a valid CoordinateType"

See also: ErrorChecking; CoordinateType

References _FILEINFO_, Planetocentric, Planetographic, Isis::IException::Programmer, setPlanetocentric(), setPlanetographic(), and Isis::Angle::toString().

◆ Latitude() [7/7]

Isis::Latitude::Latitude ( const Latitude & latitudeToCopy )

This copies the given latitude exactly.

Parameters

latitudeToCopy The latitude we're duplicating

◆ ~Latitude()

Isis::Latitude::~Latitude ( )

This cleans up the Latitude class.

Member Function Documentation

◆ add() [1/2]

Latitude Isis::Latitude::add	(	Angle	angleToAdd,
		Distance	equatorialRadius,
		Distance	polarRadius,
		CoordinateType	latType
	)

Adds another latitude to this one.

Handles planetographic latitudes.

Parameters

angleToAdd	the latitude being added to this one
equatorialRadius	Radius of the target (planet) at the equator
polarRadius	Radius of the target (planet) at the poles
latType	Planetocentric or Planetographic

Returns: The result of adding another latitude

References Latitude(), Planetocentric, planetocentric(), Planetographic, planetographic(), Isis::Angle::Radians, and Isis::Angle::radians().

◆ add() [2/2]

Latitude Isis::Latitude::add	(	Angle	angleToAdd,
		PvlGroup	mapping
	)

Adds an angle to this latitude.

The adding method is determined by the latitude type.

Parameters

angleToAdd	the latitude being added to this one
mapping	the mapping group from a projection

Exceptions

IException::Unknown	"Unable to add angle to Latitude object from given mapping group."
IException::Programmer	"Latitude type is not recognized"

Returns: The result of adding an angle to the latitude

References _FILEINFO_, Isis::PvlContainer::hasKeyword(), Isis::Distance::Meters, Planetocentric, Planetographic, Isis::IException::Programmer, Isis::Target::radiiGroup(), Isis::toDouble(), and Isis::IException::Unknown.

Referenced by Isis::GridGraphicsItem::GridGraphicsItem().

◆ angle()

double Isis::Angle::angle ( const Units & unit ) const

virtualinherited

Return angle value in desired units.

Parameters

unit	Desired units of the angle (see Angle::Units)

Returns: angle value in specified units

References _FILEINFO_, Isis::Angle::Degrees, Isis::Null, Isis::IException::Programmer, Isis::RAD2DEG, and Isis::Angle::Radians.

Referenced by Isis::Angle::Angle(), Isis::Angle::degrees(), Isis::Longitude::force360Domain(), Isis::Angle::operator<(), Isis::Angle::operator==(), Isis::Angle::operator>(), planetocentric(), Isis::Longitude::positiveEast(), Isis::Longitude::positiveWest(), Isis::Angle::radians(), setAngle(), and Isis::Angle::setAngle().

◆ degrees()

double Isis::Angle::degrees ( ) const

inlineinherited

Get the angle in units of Degrees.

Returns: A double-value representing this angle. Null if not valid.

References Isis::Angle::angle(), and Isis::Angle::Degrees.

Referenced by Isis::Angle::Angle(), Isis::Cube::attachSpiceFromIsd(), Isis::MosaicGridTool::autoGrid(), Isis::PhotometricFunction::compute(), Isis::MosaicGridTool::drawGrid(), Isis::AdjustedLatitudeFilter::evaluate(), Isis::AdjustedLongitudeFilter::evaluate(), Isis::APrioriLatitudeFilter::evaluate(), Isis::APrioriLongitudeFilter::evaluate(), Isis::Longitude::force180Domain(), Isis::Longitude::force360Domain(), Isis::BundleControlPoint::formatBundleLatitudinalOutputDetailString(), Isis::BundleTargetBody::formatBundleOutputString(), Isis::BundleControlPoint::formatBundleRectangularOutputDetailString(), Isis::AbstractPointItem::getData(), Isis::GridGraphicsItem::GridGraphicsItem(), Isis::ImageTreeWidgetItem::ImageTreeWidgetItem(), Isis::DemShape::localRadius(), Isis::MosaicControlNetTool::mouseButtonRelease(), operator<<(), Isis::ControlNetFilter::PointLatLonFilter(), Isis::MosaicGridToolConfigDialog::readSettings(), setAngle(), Isis::Angle::setDegrees(), Isis::CameraGroundMap::SetGround(), Isis::VimsGroundMap::SetGround(), Isis::UniversalGroundMap::SetGround(), Isis::Camera::SetGround(), Isis::CSMCamera::SetGround(), Isis::BundleTargetBody::setSolveSettings(), Isis::UniversalGroundMap::SetUnboundGround(), Isis::CSMCamera::subSpacecraftPoint(), TEST(), Isis::RingPlaneProjection::To180Domain(), Isis::TProjection::To180Domain(), Isis::RingPlaneProjection::To360Domain(), Isis::TProjection::To360Domain(), Isis::ControlNetVersioner::toPvl(), Isis::MosaicGridTool::toPvl(), Isis::Angle::toString(), Isis::Sensor::UniversalLatitude(), and Isis::Sensor::UniversalLongitude().

◆ errorChecking()

Latitude::ErrorChecking Isis::Latitude::errorChecking ( ) const

Get the error checking status.

This indicates if the Latitude object will throw an error when set to an angle less than -90 degrees or greater than 90 degrees.

Returns: ErrorChecking The error checking status.

◆ fullRotation()

Angle Isis::Angle::fullRotation ( )

staticinherited

Makes an angle to represent a full rotation (0-360 or 0-2pi).

Returns: the angle of 1 full rotation

References Isis::Angle::Angle(), and Isis::Angle::Degrees.

Referenced by Isis::Hillshade::shadedValue(), and Isis::Longitude::to360Range().

◆ inRange()

bool Isis::Latitude::inRange	(	Latitude	min,
		Latitude	max
	)		const

Checks if this latitude value is within the given range.

Defines the range as the change from the minimum latitude to the maximum latitude (an angle), and returns whether the change from the minimum latitude to this latitude is less than or equal to the maximum change allowed (the range).

Parameters

min	The beginning of the valid latitude range
max	The end of the valid latitude range

Exceptions

IException::User "The minimum latitude degrees is greater than the maximum latitude degrees"

Returns: Whether the latitude is in the given range

References _FILEINFO_, Isis::Angle::Degrees, Isis::Angle::toString(), and Isis::IException::User.

Referenced by Isis::QnetPointRangeFilter::filter().

◆ isValid()

bool Isis::Angle::isValid ( ) const

inherited

This indicates whether we have a legitimate angle stored or are in an unset, or invalid, state.

Returns: True if we have a legitimate angle value, false if not initialized

References Isis::Null.

Referenced by Isis::GroundGrid::CreateGrid(), Isis::Longitude::force180Domain(), Isis::Longitude::force360Domain(), Isis::UniversalGroundMap::GroundRange(), Isis::DemShape::localRadius(), Isis::SunShadowTool::mouseMove(), Isis::Angle::operator*(), Isis::Angle::operator+(), Isis::Angle::operator-(), Isis::Angle::operator/(), Isis::Angle::operator<(), Isis::Angle::operator>(), planetographic(), Isis::NaifDskPlateModel::point(), Isis::Image::save(), Isis::Shape::save(), Isis::ControlPoint::SetAprioriSurfacePoint(), Isis::Hillshade::setAzimuth(), Isis::GroundGrid::SetGroundLimits(), Isis::SurfacePoint::SetSpherical(), Isis::SurfacePoint::SetSphericalSigmas(), Isis::Hillshade::setZenith(), Isis::Longitude::to360Range(), and Isis::Angle::toString().

◆ operator!=()

bool Isis::Angle::operator!= ( const Angle & angle2 ) const

inlineinherited

Test if another angle is not equal to this angle.

Takes the negated result of the '==' operator.

Parameters

angle2 The comparison angle (on right-hand-side of != operator)

Returns: true if the angle does not equal the comparision angle

◆ operator*() [1/2]

Angle Isis::Angle::operator* ( double value ) const

inherited

Multiply this angle by a double and return the resulting angle.

If this is an invalid angle, then the result will be an invalid angle.

Parameters

value The value to multiply to this angle

Returns: Multiplied angle

References Isis::Angle::Angle(), Isis::Angle::isValid(), Isis::Angle::Radians, and Isis::Angle::radians().

◆ operator*() [2/2]

Angle Isis::Angle::operator* ( int value ) const

inlineinherited

Multiply this angle by an integer and return the resulting angle.

Parameters

value The integer value to multiply with this angle

Returns: Product of the angles

◆ operator*=()

void Isis::Angle::operator*= ( double value )

inlineinherited

Multiply this angle by a double and set this instance to the resulting angle.

Parameters

value The double value to multiply with this angle

◆ operator+()

Angle Isis::Angle::operator+ ( const Angle & angle2 ) const

inherited

Add angle value to another.

If either of these are invalid angles, then the result will be an invalid angle.

Parameters

angle2 The angle to add to this angle

Returns: sum angle

References Isis::Angle::Angle(), Isis::Angle::isValid(), Isis::Angle::Radians, and Isis::Angle::radians().

◆ operator+=()

void Isis::Angle::operator+= ( const Angle & angle2 )

inlineinherited

Add angle value to another as double and replace original.

Parameters

angle2 The angle to add to this angle

Returns: sum angle, replaces original

◆ operator-()

Angle Isis::Angle::operator- ( const Angle & angle2 ) const

inherited

Subtract angle value from another and return the resulting angle.

If either of these are invalid angles, then the result will be an invalid angle.

Parameters

angle2 The angle to subtract from this angle

Returns: difference angle

References Isis::Angle::Angle(), Isis::Angle::isValid(), Isis::Angle::Radians, and Isis::Angle::radians().

◆ operator-=()

void Isis::Angle::operator-= ( const Angle & angle2 )

inlineinherited

Subtract angle value from another and set this instance to the resulting angle.

Parameters

angle2 The angle to subtract from this angle

◆ operator/() [1/3]

double Isis::Angle::operator/ ( Angle value ) const

inherited

Divide this angle by another angle and return the ratio.

Parameters

value The ratio, Null if invalid

Returns: Quotient of the angles

References Isis::Angle::isValid(), Isis::Null, and Isis::Angle::radians().

◆ operator/() [2/3]

Angle Isis::Angle::operator/ ( double value ) const

inherited

Divide this angle by a double.

Parameters

value The double value to use as the divisor

Returns: Quotient of the angles

References Isis::Angle::Angle(), Isis::Angle::isValid(), Isis::Angle::Radians, and Isis::Angle::radians().

◆ operator/() [3/3]

Angle Isis::Angle::operator/ ( int value ) const

inlineinherited

Divide this angle by an integer and return the resulting angle.

Parameters

value The double value to use as the divisor

Returns: Quotient of the angles

◆ operator/=()

void Isis::Angle::operator/= ( double value )

inlineinherited

Divide this angle by a double and return the resulting angle.

Parameters

value The double value to use as the divisor

◆ operator<()

bool Isis::Angle::operator< ( const Angle & angle2 ) const

inherited

Test if the other angle is less than the current angle.

If either is invalid, then an exception will be thrown.

Parameters

angle2 The comparison angle (on right-hand-side of < operator)

Returns: True if the angle is less than the comparision angle

References _FILEINFO_, Isis::Angle::angle(), Isis::Angle::isValid(), Isis::IException::Programmer, and Isis::Angle::Radians.

◆ operator<=()

bool Isis::Angle::operator<= ( const Angle & angle2 ) const

inlineinherited

Test if the other angle is less than or equal to the current angle.

Parameters

angle2 The comparison angle (on right-hand-side of < operator)

Returns: true if the angle is less than or equal to the comparision angle

◆ operator=()

Latitude & Isis::Latitude::operator= ( const Latitude & latitudeToCopy )

This assigns another latitude to this one - making this latitude an exact duplicate of the other.

Parameters

latitudeToCopy The latitude we are assigning from

Returns: A reference to the dublicate latitude

References planetocentric(), and setPlanetocentric().

◆ operator==()

bool Isis::Angle::operator== ( const Angle & angle2 ) const

inlineinherited

Test if another angle is equal to this angle.

This does not compensate for going around a circle: Angle(360, Angle::Degrees) does not equal Angle(0, Angle::Degrees)

Invalid angles are equal to each other.

Parameters

angle2 The comparison angle (on right-hand-side of == operator)

Returns: true if the angle equals the comparision angle

References Isis::Angle::angle(), and Isis::Angle::Radians.

◆ operator>()

bool Isis::Angle::operator> ( const Angle & angle2 ) const

inherited

Test if the other angle is greater than the current angle.

If either is invalid, then an exception will be thrown.

Parameters

angle2 The comparison angle (on right-hand-side of > operator)

Returns: True if the angle is greater than the comparision angle

References _FILEINFO_, Isis::Angle::angle(), Isis::Angle::isValid(), Isis::IException::Programmer, and Isis::Angle::Radians.

◆ operator>=()

bool Isis::Angle::operator>= ( const Angle & angle2 ) const

inlineinherited

Test if the other angle is greater than or equal to the current angle.

Parameters

angle2 The comparison angle (on right-hand-side of < operator)

Returns: true if the angle is greater than or equal to the comparision angle

◆ planetocentric()

double Isis::Latitude::planetocentric ( Angle::Units units = Angle::Radians ) const

Get the latitude in the planetocentric (universal) coordinate system.

Parameters

units The angular units to get the latitude in

See also: CoordinateType

Returns: The Planetocentric latitude value

References Isis::Angle::angle().

Referenced by add(), operator=(), and Isis::NaifDskPlateModel::point().

◆ planetographic()

double Isis::Latitude::planetographic ( Angle::Units units = Angle::Radians ) const

Get the latitude in the planetographic coordinate system.

If this instance was not constructed with the planetary radii, then an exception will be thrown.

Parameters

units The angular units to get the latitude in

Exceptions

IException::Programmer	"The latitude cannot be converted to Planetographic without the planetary radii, please use the other Latitude constructor"
IException::Programmer	"Latitudes outside of the -90/90 range cannot be converted between Planetographic and Planetocentric"
IException::Programmer	"Invalid planetographic latitudes are not currently supported"

See also: CoordinateType

Returns: The Planetographic latitude value

References _FILEINFO_, Isis::Angle::Angle(), Isis::Angle::Degrees, Isis::Angle::isValid(), Latitude(), Isis::IException::Programmer, Isis::Angle::Radians, Isis::Angle::radians(), and Isis::Angle::toString().

Referenced by add(), Isis::MosaicGridTool::autoGrid(), Isis::GridGraphicsItem::GridGraphicsItem(), and Isis::MosaicGridToolConfigDialog::readSettings().

◆ radians()

double Isis::Angle::radians ( ) const

inlineinherited

Convert an angle to a double.

This will return the radians version of the angle.

Returns: The angle value in radians

operator double() const { return angle(Radians); } Get the angle in units of Radians.

Returns: A double-value representing this angle. Null if not valid.

References Isis::Angle::angle(), and Isis::Angle::Radians.

Referenced by add(), Isis::CameraGroundMap::EllipsoidPartial(), Isis::SurfacePoint::GetDistanceToPoint(), Isis::Camera::GetLocalNormal(), Isis::GridGraphicsItem::GridGraphicsItem(), Isis::Longitude::inRange(), Latitude(), Isis::EllipsoidShape::localRadius(), Isis::BundleTargetBody::localRadius(), Isis::Longitude::Longitude(), Isis::SunShadowTool::mouseMove(), Isis::Angle::operator*(), Isis::Angle::operator+(), Isis::Angle::operator-(), Isis::Angle::operator/(), operator<<(), Isis::Angle::operator=(), planetographic(), Isis::CameraGroundMap::PointPartial(), Isis::SurfacePoint::ResetLocalRadius(), Isis::LinearAlgebra::rotate(), Isis::Image::save(), Isis::Shape::save(), Isis::SpiceRotation::setEphemerisTimePckPolyFunction(), Isis::VimsGroundMap::SetGround(), setPlanetographic(), Isis::Angle::setRadians(), Isis::BundleTargetBody::setSolveSettings(), Isis::SurfacePoint::SetSphericalMatrix(), Isis::SurfacePoint::SetSphericalSigmas(), and Isis::Hillshade::shadedValue().

◆ setAngle()

void Isis::Latitude::setAngle	(	const double &	angle,
		const Angle::Units &	units
	)

protectedvirtual

Same as planetocentric.

We're overriding this method in order to do -90/90 degree checking.

See also: planetocentric

operator double() const { return planetocentric(); }

Parameters

angle	The numeric value of the angle
units	The units the angle is in (radians or degrees typically)

Exceptions

IException::Programmer "Latitudes past 90 degrees are not valid. The latitude is not allowed"

Reimplemented from Isis::Angle.

References _FILEINFO_, AllowPastPole, Isis::Angle::Angle(), Isis::Angle::angle(), Isis::Angle::Degrees, Isis::Angle::degrees(), Isis::IsSpecial(), Isis::IException::Programmer, Isis::Angle::setAngle(), and Isis::toString().

Referenced by setPlanetocentric(), and setPlanetographic().

◆ setDegrees()

void Isis::Angle::setDegrees ( double degrees )

inlineinherited

Set the angle in units of Degrees.

Parameters

degrees The new angle value, Null for invalid angle

References Isis::Angle::Degrees, Isis::Angle::degrees(), and Isis::Angle::setAngle().

◆ setErrorChecking()

void Isis::Latitude::setErrorChecking ( ErrorChecking errors )

Set the error checking status.

If set to ThrowAllErrors, then an exception will be thrown if the Latitude object is set to an angle less than -90 degrees or greater than 90 degrees. If set to AllowPastPole, then no exception will be thrown.

Parameters

error The new error checking status.

Referenced by Isis::GroundGrid::CreateGrid(), and Isis::GroundGrid::WalkBoundary().

◆ setPlanetocentric()

void Isis::Latitude::setPlanetocentric	(	double	latitude,
		Angle::Units	units = `Angle::Radians`
	)

Set the latitude given a value in the Planetocentric coordinate system.

Parameters

latitude	The planetographic latitude to set ourselves to
units	The angular units latitude is in

References setAngle().

Referenced by Latitude(), and operator=().

◆ setPlanetographic()

void Isis::Latitude::setPlanetographic	(	double	latitude,
		Angle::Units	units = `Angle::Radians`
	)

Set the latitude given a value in the Planetographic coordinate system.

Parameters

latitude	The planetographic latitude to set ourselves to
units	The angular units latitude is in

Exceptions

IException::Programmer	"The latitude cannot be converted to Planetographic without the planetary radii, please use the other Latitude constructor"
IException::Programmer	"Latitudes outside of the -90/90 range cannot be converted between Planetographic and Planetocentric"
IException::Programmer	"Invalid planetographic latitudes are not currently supported"

References _FILEINFO_, Isis::Angle::Angle(), Isis::Angle::Degrees, Isis::IsSpecial(), Isis::IException::Programmer, Isis::Angle::Radians, Isis::Angle::radians(), setAngle(), and Isis::toString().

Referenced by Latitude().

◆ setRadians()

void Isis::Angle::setRadians ( double radians )

inlineinherited

Set the angle in units of Radians.

Parameters

radians The new angle value, Null for invalid angle

References Isis::Angle::Radians, Isis::Angle::radians(), and Isis::Angle::setAngle().

Referenced by Isis::LinearAlgebra::toAxisAngle(), and Isis::LinearAlgebra::toEulerAngles().

◆ toString()

QString Isis::Angle::toString ( bool includeUnits = true ) const

virtualinherited

Get the angle in human-readable form.

Parameters

includeUnits Include the angle's units in the text.

Returns: A user-displayable angle string.

References Isis::Angle::degrees(), Isis::Angle::isValid(), and Isis::toString().

Referenced by inRange(), Latitude(), Isis::operator<<(), planetographic(), and Isis::Hillshade::shadedValue().

◆ unitWrapValue()

double Isis::Angle::unitWrapValue ( const Units & unit ) const

inherited

Return wrap value in desired units.

The 'wrap' value is the value where one circle occurs - angles greater than this are conceptually 'wrapping' back to zero. For example, this is 2*PI in radians because 2*PI == 0 on a circle. Please keep in mind we still differentiate those two angles.

Parameters

unit	Desired units of the Angle wrap constant (see Angle::Units)

Returns: Wrap value in specified units

References _FILEINFO_, Isis::Angle::Degrees, Isis::PI, Isis::IException::Programmer, and Isis::Angle::Radians.

Referenced by Isis::Longitude::positiveWest(), and Isis::Longitude::setPositiveWest().

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

/home/isis3mgr/repos/ISIS3/isis/src/base/objs/Latitude/Latitude.h
/home/isis3mgr/repos/ISIS3/isis/src/base/objs/Latitude/Latitude.cpp

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

Member Enumeration Documentation

◆ CoordinateType

◆ ErrorChecking

◆ Units

Constructor & Destructor Documentation

◆ Latitude() [1/7]

◆ Latitude() [2/7]

◆ Latitude() [3/7]

◆ Latitude() [4/7]

◆ Latitude() [5/7]

◆ Latitude() [6/7]

◆ Latitude() [7/7]

◆ ~Latitude()

Member Function Documentation

◆ add() [1/2]

◆ add() [2/2]

◆ angle()

◆ degrees()

◆ errorChecking()

◆ fullRotation()

◆ inRange()

◆ isValid()

◆ operator!=()

◆ operator*() [1/2]

◆ operator*() [2/2]

◆ operator*=()

◆ operator+()

◆ operator+=()

◆ operator-()

◆ operator-=()

◆ operator/() [1/3]

◆ operator/() [2/3]

◆ operator/() [3/3]

◆ operator/=()

◆ operator<()

◆ operator<=()

◆ operator=()

◆ operator==()

◆ operator>()

◆ operator>=()

◆ planetocentric()

◆ planetographic()

◆ radians()

◆ setAngle()

◆ setDegrees()

◆ setErrorChecking()

◆ setPlanetocentric()

◆ setPlanetographic()

◆ setRadians()

◆ toString()

◆ unitWrapValue()