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Ref T275, new function to estimate ground elevation and some provider functions

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* added "averageElevationOfNonMovingAircraft". Idea: aircraft in the vicinity not moving or on ground likely have the same airport elevation
* added "isWithinRange"
* added "latestRemoteAircraftSituations" / "remoteAircraftSituation" in provider
This commit is contained in:
Klaus Basan
2018-06-18 03:21:15 +02:00
parent d864789890
commit 2625c3fb6b
11 changed files with 183 additions and 42 deletions
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6
src/blackmisc/aviation/aircraftsituation.cpp
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@@ -137,7 +137,7 @@ namespace BlackMisc
const QString &CAircraftSituation::gndElevationInfoToString(GndElevationInfo details)
{
static const QString no("no details");
static const QString noDetails("no details");
static const QString unknown("unknown");
static const QString transferred("transferred");
static const QString provider("provider");
@@ -146,10 +146,11 @@ namespace BlackMisc
static const QString test("test");
static const QString interpolated("interpolated");
static const QString extrapolated("extrapolated");
static const QString avg("average");
switch (details)
{
case NoElevationInfo: return no;
case NoElevationInfo: return noDetails;
case TransferredElevation: return transferred;
case FromProvider: return provider;
case SituationChange: return change;
@@ -157,6 +158,7 @@ namespace BlackMisc
case Test: return test;
case Interpolated: return interpolated;
case Extrapolated: return extrapolated;
case Average: return avg;
default: break;
}
return unknown;

1
src/blackmisc/aviation/aircraftsituation.h
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@@ -118,6 +118,7 @@ namespace BlackMisc
TransferredElevation, //!< transferred from nearby situation
Interpolated, //!< interpolated between 2 elevations
Extrapolated, //!< extrapolated ("guessing")
Average, //!< average value of "nearby" situation CAircraftSituationList::averageElevationOfNonMovingAircraft
FromProvider, //!< from BlackMisc::Simulation::ISimulationEnvironmentProvider
FromCache, //!< from cache
SituationChange, //!< from BlackMisc::Aviation::CAircraftSituationChange

25
src/blackmisc/aviation/aircraftsituationlist.cpp
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@@ -117,6 +117,7 @@ namespace BlackMisc
bool CAircraftSituationList::extrapolateElevation(const CAircraftSituationChange &change)
{
if (this->size() < 3) { return false; }
Q_ASSERT_X(m_tsAdjustedSortHint == CAircraftSituationList::AdjustedTimestampLatestFirst, Q_FUNC_INFO, "Need latest first");
const CAircraftSituation old = (*this)[1];
const CAircraftSituation older = (*this)[2];
return this->front().extrapolateElevation(old, older, change);
@@ -520,7 +521,7 @@ namespace BlackMisc
return CAltitudePair(CAltitude(deltaFt.first, CAltitude::MeanSeaLevel, CAltitude::defaultUnit()), CAltitude(deltaFt.second, CAltitude::MeanSeaLevel, CAltitude::defaultUnit()));
}
int CAircraftSituationList::transferElevationForward(const CLength radius)
int CAircraftSituationList::transferElevationForward(const CLength &radius)
{
if (this->size() < 2) { return 0; }
Q_ASSERT_X(m_tsAdjustedSortHint == CAircraftSituationList::AdjustedTimestampLatestFirst, Q_FUNC_INFO, "need latest first");
@@ -533,5 +534,27 @@ namespace BlackMisc
}
return c;
}
CElevationPlane CAircraftSituationList::averageElevationOfNonMovingAircraft(const CAircraftSituation &reference, const CLength &range, int minValues) const
{
if (this->size() < minValues) { return CElevationPlane::null(); } // no change to succeed
QList<double> valuesInFt;
for (const CAircraftSituation &situation : *this)
{
if (situation.getGroundElevationInfo() != CAircraftSituation::FromProvider) { continue; }
const bool canUse = !situation.isMoving() || (situation.isOnGroundFromNetwork() || situation.isOnGroundFromParts());
if (!canUse) { continue; }
if (!situation.isWithinRange(reference, range)) { continue; }
const double elvFt = situation.getGroundElevationPlane().getAltitude().value(CLengthUnit::ft());
valuesInFt.push_back(elvFt);
}
if (valuesInFt.size() < minValues) { return CElevationPlane::null(); }
static const double MaxDevFt = CAircraftSituationChange::allowedAltitudeDeviation().value(CLengthUnit::ft());
const QPair<double, double> elvStdDevMean = CMathUtils::standardDeviationAndMean(valuesInFt);
if (elvStdDevMean.first > MaxDevFt) { return CElevationPlane::null(); }
return CElevationPlane(reference, elvStdDevMean.second, CElevationPlane::singlePointRadius());
}
} // namespace
} // namespace

7
src/blackmisc/aviation/aircraftsituationlist.h
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@@ -69,7 +69,7 @@ namespace BlackMisc
//! Extrapolate ground flag into the future
int extrapolateGroundFlag();
//! Extrapolates elevation into front element from 2nd and 3rd element
//! Extrapolates elevation into front (first) element from 2nd and 3rd element
//! \sa CAircraftSituation::extrapolateElevation
//! \pre the list must be sorted latest first and containt at least 3 elements
bool extrapolateElevation(const CAircraftSituationChange &change);
@@ -190,7 +190,10 @@ namespace BlackMisc
//! Transfer elevations forward from older to newer
//! \pre requires a list which is sorted "latest first"
int transferElevationForward(const PhysicalQuantities::CLength radius = Geo::CElevationPlane::singlePointRadius());
int transferElevationForward(const PhysicalQuantities::CLength &radius = Geo::CElevationPlane::singlePointRadius());
//! Average elevation for "nearby" aircraft "not moving" and having an elevation
Geo::CElevationPlane averageElevationOfNonMovingAircraft(const CAircraftSituation &reference, const PhysicalQuantities::CLength &range, int minValues = 1) const;
};
//! Situation per callsign