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Take the static temperature, static pressure, and density values from

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an external source if requested by the
/environment/params/control-fdm-atmosphere property.
This commit is contained in:
david 2002-05-15 12:10:48 +00:00
parent cade7aad70
commit 52c1cb2f7d
1 changed files with 14 additions and 3 deletions
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17
src/FDM/YASim/Atmosphere.cpp
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@ -1,3 +1,5 @@
#include <Main/fg_props.hxx>
#include "Math.hpp" #include "Math.hpp"
#include "Atmosphere.hpp" #include "Atmosphere.hpp"
namespace yasim { namespace yasim {
@ -40,17 +42,26 @@ const float GAMMA = 1.4f;
float Atmosphere::getStdTemperature(float alt) float Atmosphere::getStdTemperature(float alt)
{ {
return getRecord(alt, 1); if (fgGetBool("/environment/params/control-fdm-atmosphere"))
return fgGetDouble("/environment/temperature-degC") + 273.15;
else
return getRecord(alt, 1);
} }
float Atmosphere::getStdPressure(float alt) float Atmosphere::getStdPressure(float alt)
{ {
return getRecord(alt, 2); if (fgGetBool("/environment/params/control-fdm-atmosphere"))
return fgGetDouble("/environment/pressure-inhg") * 3386.39;
else
return getRecord(alt, 2);
} }
float Atmosphere::getStdDensity(float alt) float Atmosphere::getStdDensity(float alt)
{ {
return getRecord(alt, 3); if (fgGetBool("/environment/params/control-fdm-atmosphere"))
return fgGetDouble("/environment/density-slugft3") * 515.378;
else
return getRecord(alt, 3);
} }
float Atmosphere::calcVEAS(float spd, float pressure, float temp) float Atmosphere::calcVEAS(float spd, float pressure, float temp)