A very simple class that describes an airspace. More...

#include <Airspace.h>

Public Member Functions
	Airspace ()=default
	Constructs an invalid airspace.
	Airspace (const QJsonObject &geoJSONObject)
	Constructs an airspace from a GeoJSON object.
Units::Distance	estimatedLowerBoundMSL (Units::Distance terrainElevation, Units::Pressure QNH, Units::Distance ownshipGeometricAltitude, Units::Distance ownshipBarometricAltitude) const
	Estimates the lower limit of the airspace, as a geometric altitude above MSL.
Units::Distance	estimatedUpperBoundMSL (Units::Distance terrainElevation, Units::Pressure QNH, Units::Distance ownshipGeometricAltitude, Units::Distance ownshipBarometricAltitude) const
	Estimates the upper limit of the airspace, as a geometric altitude above MSL.
auto	isValid () const -> bool
	Getter function for property with the same name.
auto	lowerBound () const -> QString
	Getter function for property with the same name.
auto	lowerBoundMetric () const -> QString
	Getter function for property with the same name.
auto	name () const -> QString
	Getter function for property with the same name.
auto	polygon () const -> QGeoPolygon
	Getter function for property with the same name.
auto	CAT () const -> QString
	Getter function for property with the same name.
auto	upperBound () const -> QString
	Getter function for property with the same name.
auto	upperBoundMetric () const -> QString
	Getter function for property with the same name.

Properties
bool	isValid
	Validity.
QString	lowerBound
	Lower limit of the airspace.
QString	lowerBoundMetric
	Lower limit of the airspace.
QGeoPolygon	polygon
	QGeoPolygon that describes the lateral limits of the airspace.
QString	upperBound
	Upper limit of the airspace.
QString	upperBoundMetric
	Upper limit of the airspace.

Friends
auto	operator== (const GeoMaps::Airspace &, const GeoMaps::Airspace &) -> bool
	Comparison.

Detailed Description

A very simple class that describes an airspace.

Definition at line 33 of file Airspace.h.

Constructor & Destructor Documentation

◆ Airspace()

GeoMaps::Airspace::Airspace ( const QJsonObject & geoJSONObject )

explicit

Constructs an airspace from a GeoJSON object.

This method constructs an Airpace from a GeoJSON description. The GeoJSON file specification is found here.

Parameters

geoJSONObject GeoJSON Object that describes the airspace.

Member Function Documentation

◆ CAT()

auto GeoMaps::Airspace::CAT ( ) const -> QString

inlinenodiscard

Getter function for property with the same name.

Returns: Property CAT

Definition at line 194 of file Airspace.h.

◆ estimatedLowerBoundMSL()

Units::Distance GeoMaps::Airspace::estimatedLowerBoundMSL	(	Units::Distance	terrainElevation,
		Units::Pressure	QNH,
		Units::Distance	ownshipGeometricAltitude,
		Units::Distance	ownshipBarometricAltitude ) const

nodiscard

Estimates the lower limit of the airspace, as a geometric altitude above MSL.

This method estimates the lower limit of the airspace at a given point, as a geometric altitude above MSL. Since many airspace boundaries are defined as barometric altitudes (above standard or QNH pressure level), the method needs to know QNH and the ownship geometric and barometric altitude in order to provide an estimate that is good enough to judge vertical distances to airspaces.

In cases where no precision is required, you can set ownshipGeometricAltitude and ownshipBarometricAltitude to Units::Distance::fromFT(0). Depending on weather, this will lead to an error of about 5-10%, but we have seen days when the error was larger than 15%.

Parameters

terrainElevation	Elevation of the terrain at the given point. This is used when the airspace limit is defined AGL.
QNH	This datum is used when the airspace limit is defined as above QNH.
ownshipGeometricAltitude	Geometric altitude of the own aircraft. This datum is used when the airspace limit is defined as a flight level or above QNH, to ensure that the estimate is precise for airspaces limits close to the ownship.
ownshipBarometricAltitude	Barometric altitude of the own aircraft. This datum is used when the airspace limit is defined as a flight level or above QNH, to ensure that the estimate is precise for airspaces limits close to the ownship.

Returns: Estimated lower bound of the airspace, as a geometric altitude above MSL. If no meaningful bound can be computed, a default-constructed distance is returned.

◆ estimatedUpperBoundMSL()

Units::Distance GeoMaps::Airspace::estimatedUpperBoundMSL	(	Units::Distance	terrainElevation,
		Units::Pressure	QNH,
		Units::Distance	ownshipGeometricAltitude,
		Units::Distance	ownshipBarometricAltitude ) const

nodiscard

Estimates the upper limit of the airspace, as a geometric altitude above MSL.

This method estimates the upper limit of the airspace at a given point, as a geometric altitude above MSL. Since many airspace boundaries are defined as barometric altitudes (above standard or QNH pressure level), the method needs to know QNH and the ownship geometric and barometric altitude in order to provide an estimate that is good enough to judge vertical distances to airspaces.

In cases where no precision is required, you can set ownshipGeometricAltitude and ownshipBarometricAltitude to Units::Distance::fromFT(0). Depending on weather, this will lead to an error of about 5-10%, but we have seen days when the error was larger than 15%.

Parameters

terrainElevation	Elevation of the terrain at the given point. This is used when the airspace limit is defined AGL.
QNH	This datum is used when the airspace limit is defined as above QNH.
ownshipGeometricAltitude	Geometric altitude of the own aircraft. This datum is used when the airspace limit is defined as a flight level or above QNH, to ensure that the estimate is precise for airspaces limits close to the ownship.
ownshipBarometricAltitude	Barometric altitude of the own aircraft. This datum is used when the airspace limit is defined as a flight level or above QNH, to ensure that the estimate is precise for airspaces limits close to the ownship.

Returns: Estimated lower bound of the airspace, as a geometric altitude above MSL. If no meaningful bound can be computed, a default-constructed distance is returned.

◆ isValid()

auto GeoMaps::Airspace::isValid ( ) const -> bool

inlinenodiscard

Getter function for property with the same name.

Returns: Property isValid

Definition at line 136 of file Airspace.h.

◆ lowerBound()

auto GeoMaps::Airspace::lowerBound ( ) const -> QString

inlinenodiscard

Getter function for property with the same name.

Returns: Property lowerBound

Definition at line 150 of file Airspace.h.

◆ lowerBoundMetric()

auto GeoMaps::Airspace::lowerBoundMetric ( ) const -> QString

inlinenodiscard

Getter function for property with the same name.

Returns: Property lowerBoundMetric

Definition at line 162 of file Airspace.h.

◆ name()

auto GeoMaps::Airspace::name ( ) const -> QString

inlinenodiscard

Getter function for property with the same name.

Returns: Property name

Definition at line 171 of file Airspace.h.

◆ polygon()

auto GeoMaps::Airspace::polygon ( ) const -> QGeoPolygon

inlinenodiscard

Getter function for property with the same name.

Returns: Property polygon

Definition at line 180 of file Airspace.h.

◆ upperBound()

auto GeoMaps::Airspace::upperBound ( ) const -> QString

inlinenodiscard

Getter function for property with the same name.

Returns: Property upperBound

Definition at line 206 of file Airspace.h.

◆ upperBoundMetric()

auto GeoMaps::Airspace::upperBoundMetric ( ) const -> QString

inlinenodiscard

Getter function for property with the same name.

Returns: Property upperBoundMetric

Definition at line 218 of file Airspace.h.

Property Documentation

◆ lowerBound

QString GeoMaps::Airspace::lowerBound

read

Lower limit of the airspace.

A string that describes the lower bound of the airspace

See also: upperBound

Definition at line 144 of file Airspace.h.

◆ lowerBoundMetric

QString GeoMaps::Airspace::lowerBoundMetric

read

Lower limit of the airspace.

A string that describes the lower bound of the airspace in metric terms

Definition at line 156 of file Airspace.h.

◆ upperBound

QString GeoMaps::Airspace::upperBound

read

Upper limit of the airspace.

A string that describes the upper bound of the airspace

Definition at line 200 of file Airspace.h.

◆ upperBoundMetric

QString GeoMaps::Airspace::upperBoundMetric

read

Upper limit of the airspace.

A string that describes the upper bound of the airspace in metric terms

Definition at line 212 of file Airspace.h.

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

/home/runner/work/enroute/enroute/src/geomaps/Airspace.h

Public Member Functions

Properties

Friends

Detailed Description

Constructor & Destructor Documentation

◆ Airspace()

Member Function Documentation

◆ CAT()

◆ estimatedLowerBoundMSL()

◆ estimatedUpperBoundMSL()

◆ isValid()

◆ lowerBound()

◆ lowerBoundMetric()

◆ name()

◆ polygon()

◆ upperBound()

◆ upperBoundMetric()

Property Documentation

◆ lowerBound

◆ lowerBoundMetric

◆ upperBound

◆ upperBoundMetric