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Add a command which will setup the temperature field in the boundary and

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aloft layers to match a current OAT at the current altitude.  This can be
run from an external script or gui.

Given the specified OAT (and the current aircraft altitude), the code
calculates the equivalent sea level temperature, and then assigns that to
all active boundary and aloft environment layers.
This commit is contained in:
curt 2003-11-10 21:59:35 +00:00
parent 4a5961ca5b
commit 76107017cb
1 changed files with 51 additions and 0 deletions
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51
src/Main/fg_commands.cxx
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@ -16,6 +16,7 @@
#include <Cockpit/panel.hxx>
#include <Cockpit/panel_io.hxx>
#include <Environment/environment.hxx>
#include <FDM/flight.hxx>
#include <GUI/gui.h>
#include <GUI/new_gui.hxx>
@ -470,6 +471,55 @@ do_tile_cache_reload (const SGPropertyNode * arg)
}
/**
* Set the outside air temperature at the "current" altitude by first
* calculating the corresponding sea level temp, and assigning that to
* all boundary and aloft environment layers.
*/
static bool
do_set_oat_degc (const SGPropertyNode * arg)
{
const string &temp_str = arg->getStringValue("temp-degc", "15.0");
static const SGPropertyNode *altitude_ft
= fgGetNode("/position/altitude-ft");
FGEnvironment dummy; // instantiate a dummy so we can leech a method
dummy.set_elevation_ft( altitude_ft->getDoubleValue() );
dummy.set_temperature_degc( atof( temp_str.c_str() ) );
double temp_sea_level_degc = dummy.get_temperature_sea_level_degc();
cout << "Altitude = " << altitude_ft->getDoubleValue() << endl;
cout << "Temp at alt (C) = " << atof( temp_str.c_str() ) << endl;
cout << "Temp sea level (C) = " << temp_sea_level_degc << endl;
SGPropertyNode *node, *child;
// boundary layers
node = fgGetNode( "/environment/config/boundary" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "temperature-sea-level-degc",
temp_sea_level_degc );
++i;
}
}
// aloft layers
node = fgGetNode( "/environment/config/aloft" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "temperature-sea-level-degc",
temp_sea_level_degc );
++i;
}
}
return true;
}
/**
* Update the lighting manually.
*/
@ -983,6 +1033,7 @@ static struct {
{ "view-cycle", do_view_cycle },
{ "screen-capture", do_screen_capture },
{ "tile-cache-reload", do_tile_cache_reload },
{ "set-outside-air-temp-degc", do_set_oat_degc },
{ "timeofday", do_timeofday },
{ "property-toggle", do_property_toggle },
{ "property-assign", do_property_assign },