#include <CDSSCyl.h>

Public Member Functions
	CDSSCyl (const double distance, const double height, const double cdfilter)

	CDSSCyl (const double distance, const std::string &ud, const double height, const std::string &uh, const double cdfilter)

	CDSSCyl (const CDSSCyl &cdss)

CDSSCyl &	operator= (const CDSSCyl &cdss)

double	getDistance () const

double	getDistance (const std::string &ud) const

double	getHeight () const

double	getHeight (const std::string &uh) const

double	getTimeHorizon () const

double	getTimeHorizon (const std::string &ut) const

double	getFilterTime () const

void	setDistance (const double distance)

void	setDistance (const double distance, const std::string &ud)

void	setHeight (const double height)

void	setHeight (const double height, const std::string &uh)

void	setTimeHorizon (const double time)

void	setTimeHorizon (const double time, const std::string &ut)

void	setFilterTime (const double cdfilter)

double	getFilter () const

bool	lossOfSeparation (const Vect3 &s) const

bool	lossOfSeparation (const Vect3 &so, const Vect3 &si) const

bool	conflictEver (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi) const

bool	conflictBetween (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, const double B, const double T) const

bool	conflictBetween (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, const double B, const double T, const std::string &ut) const

bool	conflict (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, const double T) const

bool	conflict (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, const double T, const std::string &ut) const

bool	detectionEver (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi)

bool	detectionBetween (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, const double B, const double T)

bool	detectionBetween (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, const double B, const double T, const std::string &ut)

bool	detection (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, const double T)

bool	detection (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, const double T, const std::string &ut)

double	conflictDuration () const

double	conflictDuration (const std::string &ut) const

bool	conflict () const

double	getTimeIn () const

double	getTimeIn (const std::string &ut) const

double	getTimeOut () const

double	getTimeOut (const std::string &ut) const

double	getCriticalTime () const

double	getCriticalTime (const std::string &ut) const

double	cylindricalDistanceAtCriticalTime () const

Vect3	relativePositionAtCriticalTime () const

double	verticalDistanceAtCriticalTime () const

double	verticalDistanceAtCriticalTime (const std::string &ud) const

double	horizontalDistanceAtCriticalTime () const

double	horizontalDistanceAtCriticalTime (const std::string &ud) const

std::string	toString ()

Static Public Member Functions
static CDSSCyl	make (double distance, const std::string &dStr, double height, const std::string &hStr)

static CDSSCyl	mk (double distance, double height)

static bool	lossOfSeparation (const Vect3 &so, const Vect3 &si, double d, double h)

static bool	conflict (const Vect3 &s, const Velocity &vo, const Velocity &vi, double D, double H, double T)

static bool	conflict (const Vect3 &so, const Velocity &vo, const Vect3 &si, const Velocity &vi, double D, double H, double T)

static double	timeIntoLoS (const Vect3 &s, const Vect3 &vo, const Vect3 &vi, double D, double H)

Private Member Functions
void	init (const double d, const double h, const double f)

Private Attributes
double	D

double	H

double	TimeHorizon

double	filter

double	tca

double	t_in

double	t_out

Vect3	stca

CDCylinder	cd

Detailed Description

The Class CDSS. This is a dedicated class that only uses the CD3D (CDCylinder) detection algorithm. The more general form is CDSSCore, which may utilize arbitrary Detection3D detection algorithms.

Usage: CDSS cdss = new CDSS(); cdss.setDistance(5,"NM") cdss.setHeight(950,"ft") boolean det = cdss.detection(so,vo,si,vi,T);

Constructor & Destructor Documentation

◆ CDSSCyl() [1/3]

larcfm::CDSSCyl::CDSSCyl	(	const double	distance,
		const double	height,
		const double	cdfilter
	)

Create a new state-based conflict detection object using internal units.

Parameters

distance	the minimum horizontal separation distance [m]
height	the minimum vertical separation height [m].
cdfilter	the cdfilter

◆ CDSSCyl() [2/3]

larcfm::CDSSCyl::CDSSCyl	(	const double	distance,
		const std::string &	ud,
		const double	height,
		const std::string &	uh,
		const double	cdfilter
	)

Create a new state-based conflict detection object using specified units.

Parameters

distance	the minimum horizontal separation distance [ud]
ud	the specified units of distance
height	the minimum vertical separation height [uh]
uh	the specified units of height
cdfilter	the cdfilter

Create a new state-based conflict detection object using explicit units.

Parameters

distance	the minimum horizontal separation distance [ud]
ud	the explicit units of distance
height	the minimum vertical separation height [uh]
uh	the explicit units of height
cdfilter	the cdfilter

◆ CDSSCyl() [3/3]

larcfm::CDSSCyl::CDSSCyl ( const CDSSCyl & cdss )

Copy constructor

Member Function Documentation

◆ conflict() [1/5]

bool larcfm::CDSSCyl::conflict ( ) const

Was there a detected conflict?

◆ conflict() [2/5]

bool larcfm::CDSSCyl::conflict	(	const Vect3 &	s,
		const Velocity &	vo,
		const Velocity &	vi,
		double	D,
		double	H,
		double	T
	)

static

Determines if two aircraft are in conflict in a given lookahead time interval (internal units). This function DOES NOT compute time interval of conflict. This function uses the CD3D definition of "conflict" – for a more general solution, use the one of the other conflict() or detection() methods.

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
D	The horizontal size of the protection zone
H	The vertical size of the protection zone
T	upper bound of lookahead time interval in internal units [s] (T > 0)

Returns: true, if the aircraft are in conflict in the interval [0,T].

◆ conflict() [3/5]

bool larcfm::CDSSCyl::conflict	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		const double	T
	)		const

Determines if two aircraft are in conflict within a given lookahed time (internal units). This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
T	lookahead time in internal units [s] (T > 0)

Returns: true, if the aircraft are in conflict in the interval [0,T].

Determines if two aircraft are in conflict within a given lookahed time (internal units). This function DOES NOT compute time interval of conflict.

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
T	lookahead time in internal units [s] (T > 0)

Returns: true, if the aircraft are in conflict in the interval [0,T].

◆ conflict() [4/5]

bool larcfm::CDSSCyl::conflict	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		const double	T,
		const std::string &	ut
	)		const

Determines if two aircraft are in conflict within a given lookahead time (specified units). This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
T	upper bound of lookahead time interval in specified units [ut] (T > 0)
ut	specified units of time

Returns: true, if the aircraft are in conflict in the interval [0,T].

Determines if two aircraft are in conflict within a given lookahead time (explicit units). This function DOES NOT compute time interval of conflict.

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
T	upper bound of lookahead time interval in explicit units [ut] (T > 0)
ut	explicit units of time

Returns: true, if the aircraft are in conflict in the interval [0,T].

◆ conflict() [5/5]

bool larcfm::CDSSCyl::conflict	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		double	D,
		double	H,
		double	T
	)

static

Determines if two aircraft are in conflict in a given lookahead time interval (internal units). This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
D	The horizontal size of the protection zone
H	The vertical size of the protection zone
T	upper bound of lookahead time interval in internal units [s] (T > 0)

Returns: true, if the aircraft are in conflict in the interval [0,T].

◆ conflictBetween() [1/2]

bool larcfm::CDSSCyl::conflictBetween	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		const double	B,
		const double	T
	)		const

Determines if two aircraft are in conflict in a given lookahed time interval (internal units). This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
B	lower bound of lookahead time interval in internal units [s] (B >= 0)
T	upper bound of lookahead time interval in internal units [s] (T > B)

Returns: true, if the aircraft are in conflict in the interval [B,T].

Determines if two aircraft are in conflict in a given lookahed time interval (internal units). This function DOES NOT compute time interval of conflict.

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
B	lower bound of lookahead time interval in internal units [s] (B >= 0)
T	upper bound of lookahead time interval in internal units [s] (T > 0)

Returns: true, if the aircraft are in conflict in the interval [B,T].

◆ conflictBetween() [2/2]

bool larcfm::CDSSCyl::conflictBetween	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		const double	B,
		const double	T,
		const std::string &	ut
	)		const

Determines if two aircraft are in conflict in a given lookahead time internal (specified units). This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
B	lower bound of lookahead time interval in specified units [ut] (B >= 0)
T	upper bound of lookahead time interval in specified units [ut] (T > 0)
ut	specified units of time

Returns: true, if the aircraft are in conflict in the interval [B,T].

Determines if two aircraft are in conflict in a given lookahead time internal (explicit units). This function DOES NOT compute time interval of conflict.

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
B	lower bound of lookahead time interval in explicit units [ut] (B >= 0)
T	upper bound of lookahead time interval in explicit units [ut] (T > 0)
ut	explicit units of time

Returns: true, if the aircraft are in conflict in the interval [B,T].

◆ conflictDuration() [1/2]

double larcfm::CDSSCyl::conflictDuration ( ) const

Duration of conflict in internal units.

Returns: the duration of conflict. Zero means that there is not conflict.

Duration of conflict in internal units.

Returns: the duration of conflict. Zero means that there is not conflict. A negative number means that the conflict last for ever.

◆ conflictDuration() [2/2]

double larcfm::CDSSCyl::conflictDuration ( const std::string & ut ) const

Duration of conflict in specified units.

Parameters

ut	the explicit units of time

Returns: the duration of conflict in explicit units [ut]. Zero means that there is not conflict.

Duration of conflict in explicit units.

Parameters

ut	the explicit units of time

Returns: the duration of conflict in explicit units [ut]. Zero means that there is no conflict. A negative number means that the conflict last for ever.

◆ conflictEver()

bool larcfm::CDSSCyl::conflictEver	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi
	)		const

Determines if two aircraft are in conflict ever within time horizon. This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder

Returns: true, if the aircraft are in conflict in the interval [0,time_horizon].

Determines if two aircraft are in conflict ever within time horizon. This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder

Returns: true, if the aircraft are in conflict in the interval [0,TimeHorizon].

◆ cylindricalDistanceAtCriticalTime()

double larcfm::CDSSCyl::cylindricalDistanceAtCriticalTime ( ) const

Cylindrical distance at time of closest approach.

Returns: the cylindrical distance at time of closest approach. This distance normalizes horizontal and vertical distances. Therefore, it is unitless. It has the property that the value is less than 1 if and only if the aircraft are in loss of separation. The value is 1 if the ownship is at the boundary of the intruder's protected zone.

◆ detection() [1/2]

bool larcfm::CDSSCyl::detection	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		const double	T
	)

Detects a conflict that lasts more than filter time within a given lookahed time and computes the time interval of conflict (internal units).

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
T	the lookahead time in internal units [s] (T > 0)

Returns: true, if there is a conflict that last more than the filter time in the interval [0,T].

Detects a conflict that lasts more than filter time within a given lookahed time and computes the time interval of conflict (internal units).

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
T	the lookahed time in internal units [s] (T > 0)

Returns: true, if there is a conflict that last more than the filter time in the interval [0,T].

◆ detection() [2/2]

bool larcfm::CDSSCyl::detection	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		const double	T,
		const std::string &	ut
	)

Detects a conflict that lasts more than filter time within a given lookahead time and computes the time interval of conflict (specified units).

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
T	the lookahead time in specified units [ut] (T > 0)
ut	specified units of time

Returns: true, if there is a conflict that last more than the filter time in the interval [0,T].

Detects a conflict that lasts more than filter time within a given lookahead time and computes the time interval of conflict (explicit units).

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
T	the lookahead time in explicit units [ut] (T > 0)
ut	explicit units of time

Returns: true, if there is a conflict that last more than the filter time in the interval [0,T].

◆ detectionBetween() [1/2]

bool larcfm::CDSSCyl::detectionBetween	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		const double	B,
		const double	T
	)

Detects a conflict that lasts more than filter time in a given lookahead time interval and computes the time interval of conflict (internal units).

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
B	lower bound of lookahead time interval in internal units [s] (B >= 0)
T	upper bound of lookahead time interval in internal units [s] (T > 0)

Returns: true, if there is a conflict that last more than the filter time in the interval [B,T].

Detects a conflict that lasts more than filter time in a given lookahed time interval and computes the time interval of conflict (internal units).

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
B	lower bound of lookahead time interval in internal units [s] (B >= 0)
T	upper bound of lokkahed time interval in internal units [s] (T > 0)

Returns: true, if there is a conflict that last more than the filter time in the interval [B,T].

◆ detectionBetween() [2/2]

bool larcfm::CDSSCyl::detectionBetween	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi,
		const double	B,
		const double	T,
		const std::string &	ut
	)

Detects a conflict that lasts more than filter time in a given lookahead time interval and computes the time interval of conflict (specified units).

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder
B	lower bound of lookahead time interval in specified units [ut] (B >= 0)
T	upper bound of lookahead time interval in specified units [ut] (T > 0)
ut	specified units of time

Returns: true, if there is a conflict that last more than the filter time in the interval [B,T].

Detects a conflict that lasts more than filter time in a given lookahead time interval and computes the time interval of conflict (explicit units).

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder
B	lower bound of lookahead time interval in explicit units [ut] (B >= 0)
T	upper bound of lookahead time interval in explicit units [ut] (T > 0)
ut	explicit units of time

Returns: true, if there is a conflict that last more than the filter time in the interval [B,T].

◆ detectionEver()

bool larcfm::CDSSCyl::detectionEver	(	const Vect3 &	so,
		const Velocity &	vo,
		const Vect3 &	si,
		const Velocity &	vi
	)

Detects a conflict that lasts more than filter time within time horizon and computes the time interval of conflict.

Parameters

so	the position of the ownship
vo	the velocity of the ownship
si	the position of the intruder
vi	the velocity of the intruder

Returns: true, if there is a conflict that last more than the filter time in the interval [0,time_horizon].

Detects a conflict that lasts more than filter time within time horizon and computes the time interval of conflict.

Parameters

s	the relative position of the aircraft
vo	the velocity of the ownship
vi	the velocity of the intruder

Returns: true, if there is a conflict that last more than the filter time in the interval [0,TimeHorizon].

◆ getCriticalTime() [1/2]

double larcfm::CDSSCyl::getCriticalTime ( ) const

Time of closest approach in internal units.

Returns: the cylindrical time of closest approach [s].

◆ getCriticalTime() [2/2]

double larcfm::CDSSCyl::getCriticalTime ( const std::string & ut ) const

Time of cylindrical closest approach in explicit units.

Parameters

ut	the explicit units of time

Returns: the time of (cylindrical) closest approach in explicit units [ut]

◆ getDistance() [1/2]

double larcfm::CDSSCyl::getDistance ( ) const

Returns the minimum horizontal separation distance in internal units [m].

Returns: the distance

◆ getDistance() [2/2]

double larcfm::CDSSCyl::getDistance ( const std::string & ud ) const

Returns the minimum horizontal separation distance in specified units.

Parameters

ud	the specified units of distance

Returns: the distance in specified units [ud]

Returns the minimum horizontal separation distance in explicit units.

Parameters

ud	the explicit units of distance

Returns: the distance in explicit units [ud]

◆ getFilterTime()

double larcfm::CDSSCyl::getFilterTime ( ) const

Returns the conflict detection filter time.

Returns: the conflict detection filter time seconds

◆ getHeight() [1/2]

double larcfm::CDSSCyl::getHeight ( ) const

Returns the minimum vertical separation distance in internal units.

Returns: the height in internal units [m]

◆ getHeight() [2/2]

double larcfm::CDSSCyl::getHeight ( const std::string & uh ) const

Returns the minimum vertical separation distance in specified units.

Parameters

uh	the specified units of height

Returns: the height in specified units [uh]

Returns the minimum vertical separation distance in explicit units.

Parameters

uh	the explicit units of height

Returns: the height in explicit units [uh]

◆ getTimeHorizon() [1/2]

double larcfm::CDSSCyl::getTimeHorizon ( ) const

Returns the time horizon in internal units.

Returns: the time horizon [s]

Returns the time horizon in internal units. time < 0 means infinite time horizon

Returns: the time horizon [s]

◆ getTimeHorizon() [2/2]

double larcfm::CDSSCyl::getTimeHorizon ( const std::string & ut ) const

Returns the time horizon in specified units.

Parameters

ut	the specified units of time

Returns: the time horizon in specified units [ut]

Returns the time horizon in explicit units. time < 0 means infinite time horizon

Parameters

ut	the explicit units of time

Returns: the time horizon in explicit units [ut]

◆ getTimeIn() [1/2]

double larcfm::CDSSCyl::getTimeIn ( ) const

Time to loss of separation in internal units.

Returns: the time to loss of separation. Note that this is a relative time.

Time to loss of separation in internal units.

Returns: the time to loss of separation. If time is negative then there is no conflict.

◆ getTimeIn() [2/2]

double larcfm::CDSSCyl::getTimeIn ( const std::string & ut ) const

Time to loss of separation in explicit units.

Parameters

ut	the explicit units of time

Returns: the time to loss of separation in explicit units [ut]. If time is negative then there is no conflict.

◆ getTimeOut() [1/2]

double larcfm::CDSSCyl::getTimeOut ( ) const

Time to recovery of loss of separation in internal units.

Returns: the time to recovery of loss of separation. Note that this is a relative time.

Time to recovery of loss of separation in internal units.

Returns: the time to recovery of loss of separation. If timeOut is zero then there is no conflict. If timeOut is negative then, timeOut is infinite.

◆ getTimeOut() [2/2]

double larcfm::CDSSCyl::getTimeOut ( const std::string & ut ) const

Time to recovery of loss of separation in explicit units.

Parameters

ut	the explicit units of time

Returns: the time to recovery of loss of separation in explicit units [ut].

Time to recovery of loss of separation in explicit units.

Parameters

ut	the explicit units of time

Returns: the time to recovery of loss of separation in explicit units [ut]. If timeOut is zero then there is no conflict. If timeOut is negative then, timeOut is infinite.

◆ horizontalDistanceAtCriticalTime() [1/2]

double larcfm::CDSSCyl::horizontalDistanceAtCriticalTime ( ) const

Horizontal distance at time of closest approach (internal units).

Returns: the horizontal distance at time of closest approach.

◆ horizontalDistanceAtCriticalTime() [2/2]

double larcfm::CDSSCyl::horizontalDistanceAtCriticalTime ( const std::string & ud ) const

Horizontal distance at time of closest approach (explicit units).

Parameters

ud	the explicit units of distance

Returns: the horizontal distance at time of closest approach.

◆ lossOfSeparation() [1/3]

bool larcfm::CDSSCyl::lossOfSeparation ( const Vect3 & s ) const

Determines if two aircraft are in loss of separation. This function DOES NOT compute time interval of conflict. This function uses the CD3D definition of loss of separation – for a more general solution, use lossOfSeparation(Vect3,Velocity,Velocity)

Parameters

s	the relative position of the aircraft

Returns: true, if the aircraft are in loss of separation.

Determines if two aircraft are in loss of separation. This function DOES NOT compute time interval of conflict.

Parameters

s	the relative position of the aircraft

Returns: true, if the aircraft are in loss of separation.

◆ lossOfSeparation() [2/3]

bool larcfm::CDSSCyl::lossOfSeparation	(	const Vect3 &	so,
		const Vect3 &	si
	)		const

Determines if two aircraft are in loss of separation. This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
si	the position of the intruder

Returns: true, if the aircraft are in loss of separation.

◆ lossOfSeparation() [3/3]

bool larcfm::CDSSCyl::lossOfSeparation	(	const Vect3 &	so,
		const Vect3 &	si,
		double	d,
		double	h
	)

static

Determines if two aircraft are in loss of separation. This function DOES NOT compute time interval of conflict.

Parameters

so	the position of the ownship
si	the position of the intruder

Returns: true, if the aircraft are in loss of separation.

◆ make()

CDSSCyl larcfm::CDSSCyl::make	(	double	distance,
		const std::string &	dStr,
		double	height,
		const std::string &	hStr
	)

static

Create a new state-based conflict detection object using specified units.

Parameters

distance	the minimum horizontal separation distance [dStr]
height	the minimum vertical separation height [hStr].

Create a new state-based conflict detection object using specified units.

Parameters

distance	the minimum horizontal separation distance [hStr]
height	the minimum vertical separation height [dStr].

◆ mk()

CDSSCyl larcfm::CDSSCyl::mk	(	double	distance,
		double	height
	)

static

Create a new state-based conflict detection object using internal units.

Parameters

distance	the minimum horizontal separation distance [m]
height	the minimum vertical separation height [m].

◆ relativePositionAtCriticalTime()

Vect3 larcfm::CDSSCyl::relativePositionAtCriticalTime ( ) const

Relative position at time of closest approach (internal units).

Returns: the relative position of the ownship with respect to the intruder at time of closest approach.

◆ setDistance() [1/2]

void larcfm::CDSSCyl::setDistance ( const double distance )

Sets the minimum horizontal separation distance in internal units.

Parameters

distance the distance in internal units [m]

◆ setDistance() [2/2]

void larcfm::CDSSCyl::setDistance	(	const double	distance,
		const std::string &	ud
	)

Sets the minimum horizontal separation distance in specified units.

Parameters

distance	the distance in specified units [ud]
ud	the specified units of distance

Sets the minimum horizontal separation distance in explicit units.

Parameters

distance	the distance in explicit units [ud]
ud	the explicit units of distance

◆ setFilterTime()

void larcfm::CDSSCyl::setFilterTime ( const double cdfilter )

Sets the conflict detection filter time.

Parameters

cdfilter the conflict detection filter time in seconds.

◆ setHeight() [1/2]

void larcfm::CDSSCyl::setHeight ( const double height )

Sets the minimum vertical separation distance in internal units.

Parameters

height the height in internal units [m]

◆ setHeight() [2/2]

void larcfm::CDSSCyl::setHeight	(	const double	height,
		const std::string &	uh
	)

Sets the minimum vertical separation distance in specified units.

Parameters

height	the height in specified units [uh]
uh	the specified units of time of height

Sets the minimum vertical separation distance in explicit units.

Parameters

height	the height in explicit units [uh]
uh	the explicit units of time of height

◆ setTimeHorizon() [1/2]

void larcfm::CDSSCyl::setTimeHorizon ( const double time )

Sets the time horizon in internal units.

Parameters

time	the time horizon in internal units [s].

Sets the time horizon in internal units.

Parameters

time	the time horizon in internal units [s]. time < 0 means infinite time horizon

◆ setTimeHorizon() [2/2]

void larcfm::CDSSCyl::setTimeHorizon	(	const double	time,
		const std::string &	ut
	)

Sets the time horizon in specified units.

Parameters

time	the time horizon in specified units [ut].
ut	the specified units of time

Sets the time horizon in explicit units.

Parameters

time	the time horizon in explicit units [ut]. time < 0 means infinite time horizon
ut	the explicit units of time

◆ timeIntoLoS()

double larcfm::CDSSCyl::timeIntoLoS	(	const Vect3 &	s,
		const Vect3 &	vo,
		const Vect3 &	vi,
		double	D,
		double	H
	)

static

EXPERIMENTAL STATIC TIME INTO LOS (assumes infinite lookahead time), undefined if not conflict

Parameters

s	the relative position of the aircraft
vo	the ownship's velocity
vi	the intruder's velocity
D	the minimum horizontal distance
H	the minimum vertical distance

Returns: time to enter loss of separation

EXPERIMENTAL STATIC TIME INTO LOS (assumes infinite lookahead time), undefined if not conflict

Parameters

s	the relative position of the aircraft
vo	the ownship's velocity
vi	the intruder's velocity
D	the minimum horizontal distance
H	the minimum vertical distance

Returns

◆ verticalDistanceAtCriticalTime() [1/2]

double larcfm::CDSSCyl::verticalDistanceAtCriticalTime ( ) const

Vertical distance at time of closest approach (internal units).

Returns: the vertical distance at time of closest approach.

◆ verticalDistanceAtCriticalTime() [2/2]

double larcfm::CDSSCyl::verticalDistanceAtCriticalTime ( const std::string & ud ) const

Vertical distance at time of closest approach (explicit units).

Parameters

ud	the explicit units of distance

Returns: the vertical distance at time of closest approach.

Member Data Documentation

◆ cd

CDCylinder larcfm::CDSSCyl::cd

private

CD3D object

◆ D

double larcfm::CDSSCyl::D

private

The minimum horizontal distance

◆ filter

double larcfm::CDSSCyl::filter

private

The conflict filter time

◆ H

double larcfm::CDSSCyl::H

private

The minimum vertical distance

◆ stca

Vect3 larcfm::CDSSCyl::stca

private

Aircraft relative position at time of closest approach.

◆ tca

double larcfm::CDSSCyl::tca

private

Time of (cylindrical) closest approach *.

◆ TimeHorizon

double larcfm::CDSSCyl::TimeHorizon

private

Time horizon. TimeHorizon < 0 means an infinite time horizon

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

Modules/ACCoRD/inc/CDSSCyl.h
Modules/ACCoRD/src/CDSSCyl.cpp

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ CDSSCyl() [1/3]

◆ CDSSCyl() [2/3]

◆ CDSSCyl() [3/3]

Member Function Documentation

◆ conflict() [1/5]

◆ conflict() [2/5]

◆ conflict() [3/5]

◆ conflict() [4/5]

◆ conflict() [5/5]

◆ conflictBetween() [1/2]

◆ conflictBetween() [2/2]

◆ conflictDuration() [1/2]

◆ conflictDuration() [2/2]

◆ conflictEver()

◆ cylindricalDistanceAtCriticalTime()

◆ detection() [1/2]

◆ detection() [2/2]

◆ detectionBetween() [1/2]

◆ detectionBetween() [2/2]

◆ detectionEver()

◆ getCriticalTime() [1/2]

◆ getCriticalTime() [2/2]

◆ getDistance() [1/2]

◆ getDistance() [2/2]

◆ getFilterTime()

◆ getHeight() [1/2]

◆ getHeight() [2/2]

◆ getTimeHorizon() [1/2]

◆ getTimeHorizon() [2/2]

◆ getTimeIn() [1/2]

◆ getTimeIn() [2/2]

◆ getTimeOut() [1/2]

◆ getTimeOut() [2/2]

◆ horizontalDistanceAtCriticalTime() [1/2]

◆ horizontalDistanceAtCriticalTime() [2/2]

◆ lossOfSeparation() [1/3]

◆ lossOfSeparation() [2/3]

◆ lossOfSeparation() [3/3]

◆ make()

◆ mk()

◆ relativePositionAtCriticalTime()

◆ setDistance() [1/2]

◆ setDistance() [2/2]

◆ setFilterTime()

◆ setHeight() [1/2]

◆ setHeight() [2/2]

◆ setTimeHorizon() [1/2]

◆ setTimeHorizon() [2/2]

◆ timeIntoLoS()

◆ verticalDistanceAtCriticalTime() [1/2]

◆ verticalDistanceAtCriticalTime() [2/2]

Member Data Documentation

◆ cd

◆ D

◆ filter

◆ H

◆ stca

◆ tca

◆ TimeHorizon