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Ref T335, misc improvements in value objects

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* allow to reset PBH for terrain probe
* check for null altitude before converting
* function isTerrainProbe for model/aircraft
This commit is contained in:
Klaus Basan
2018-09-06 08:49:40 +02:00
committed by Roland Winklmeier
parent 916f2f6180
commit 651ead5b51
6 changed files with 24 additions and 3 deletions
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3
src/blackmisc/aviation/altitude.cpp
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@@ -101,6 +101,7 @@ namespace BlackMisc
void CAltitude::convertToPressureAltitude(const CPressure &seaLevelPressure)
{
if (m_altitudeType == PressureAltitude) { return; }
if (this->isNull()) { return; }
const CPressure deltaPressure = standardISASeaLevelPressure() - seaLevelPressure;
const double deltaPressureV = deltaPressure.value(CPressureUnit::mbar());
const double deltaAltitudeV = deltaPressureV * 30.0; // 30.0 ft per mbar
@@ -111,6 +112,8 @@ namespace BlackMisc
CAltitude CAltitude::toPressureAltitude(const CPressure &seaLevelPressure) const
{
if (seaLevelPressure.isNull()) { return CAltitude::null(); }
if (this->isNull()) { return CAltitude::null(); }
CAltitude other(*this);
other.convertToPressureAltitude(seaLevelPressure);
return other;